diff mbox

[1/2] target-mips: get rid of MIPS_DEBUG

Message ID 1442178479-28142-2-git-send-email-aurelien@aurel32.net
State New
Headers show

Commit Message

Aurelien Jarno Sept. 13, 2015, 9:07 p.m. UTC
MIPS_DEBUG is a define used to dump the instruction disassembling. It
has to be defined at compile time. In practice I believe it's more
efficient to just look at the instruction disassembly and op dump using
-d in_asm,op. This patch therefore removes the corresponding code, which
clutters translate.c.

Cc: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
---
 target-mips/translate.c | 624 ++----------------------------------------------
 1 file changed, 19 insertions(+), 605 deletions(-)
diff mbox

Patch

diff --git a/target-mips/translate.c b/target-mips/translate.c
index 93cb4f2..36bc25d 100644
--- a/target-mips/translate.c
+++ b/target-mips/translate.c
@@ -1482,26 +1482,23 @@  static const char * const msaregnames[] = {
     "w30.d0", "w30.d1", "w31.d0", "w31.d1",
 };
 
-#define MIPS_DEBUG(fmt, ...)                                                  \
+#define LOG_DISAS(...)                                                        \
     do {                                                                      \
         if (MIPS_DEBUG_DISAS) {                                               \
-            qemu_log_mask(CPU_LOG_TB_IN_ASM,                                  \
-                          TARGET_FMT_lx ": %08x " fmt "\n",                   \
-                          ctx->pc, ctx->opcode , ## __VA_ARGS__);             \
+            qemu_log_mask(CPU_LOG_TB_IN_ASM, ## __VA_ARGS__);                 \
         }                                                                     \
     } while (0)
 
-#define LOG_DISAS(...)                                                        \
+#define MIPS_INVAL(op)                                                        \
     do {                                                                      \
         if (MIPS_DEBUG_DISAS) {                                               \
-            qemu_log_mask(CPU_LOG_TB_IN_ASM, ## __VA_ARGS__);                 \
+            qemu_log_mask(CPU_LOG_TB_IN_ASM,                                  \
+                          TARGET_FMT_lx ": %08x Invalid %s %03x %03x %03x\n", \
+                          ctx->pc, ctx->opcode, op, ctx->opcode >> 26,        \
+                          ctx->opcode & 0x3F, ((ctx->opcode >> 16) & 0x1F));  \
         }                                                                     \
     } while (0)
 
-#define MIPS_INVAL(op)                                                        \
-    MIPS_DEBUG("Invalid %s %03x %03x %03x", op, ctx->opcode >> 26,            \
-               ctx->opcode & 0x3F, ((ctx->opcode >> 16) & 0x1F))
-
 /* General purpose registers moves. */
 static inline void gen_load_gpr (TCGv t, int reg)
 {
@@ -2105,14 +2102,12 @@  static target_ulong pc_relative_pc (DisasContext *ctx)
 static void gen_ld(DisasContext *ctx, uint32_t opc,
                    int rt, int base, int16_t offset)
 {
-    const char *opn = "ld";
     TCGv t0, t1, t2;
 
     if (rt == 0 && ctx->insn_flags & (INSN_LOONGSON2E | INSN_LOONGSON2F)) {
         /* Loongson CPU uses a load to zero register for prefetch.
            We emulate it as a NOP. On other CPU we must perform the
            actual memory access. */
-        MIPS_DEBUG("NOP");
         return;
     }
 
@@ -2125,20 +2120,17 @@  static void gen_ld(DisasContext *ctx, uint32_t opc,
         tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx, MO_TEUL |
                            ctx->default_tcg_memop_mask);
         gen_store_gpr(t0, rt);
-        opn = "lwu";
         break;
     case OPC_LD:
         tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx, MO_TEQ |
                            ctx->default_tcg_memop_mask);
         gen_store_gpr(t0, rt);
-        opn = "ld";
         break;
     case OPC_LLD:
     case R6_OPC_LLD:
         save_cpu_state(ctx, 1);
         op_ld_lld(t0, t0, ctx);
         gen_store_gpr(t0, rt);
-        opn = "lld";
         break;
     case OPC_LDL:
         t1 = tcg_temp_new();
@@ -2161,7 +2153,6 @@  static void gen_ld(DisasContext *ctx, uint32_t opc,
         tcg_gen_or_tl(t0, t0, t1);
         tcg_temp_free(t1);
         gen_store_gpr(t0, rt);
-        opn = "ldl";
         break;
     case OPC_LDR:
         t1 = tcg_temp_new();
@@ -2185,7 +2176,6 @@  static void gen_ld(DisasContext *ctx, uint32_t opc,
         tcg_gen_or_tl(t0, t0, t1);
         tcg_temp_free(t1);
         gen_store_gpr(t0, rt);
-        opn = "ldr";
         break;
     case OPC_LDPC:
         t1 = tcg_const_tl(pc_relative_pc(ctx));
@@ -2193,7 +2183,6 @@  static void gen_ld(DisasContext *ctx, uint32_t opc,
         tcg_temp_free(t1);
         tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx, MO_TEQ);
         gen_store_gpr(t0, rt);
-        opn = "ldpc";
         break;
 #endif
     case OPC_LWPC:
@@ -2202,35 +2191,29 @@  static void gen_ld(DisasContext *ctx, uint32_t opc,
         tcg_temp_free(t1);
         tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx, MO_TESL);
         gen_store_gpr(t0, rt);
-        opn = "lwpc";
         break;
     case OPC_LW:
         tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx, MO_TESL |
                            ctx->default_tcg_memop_mask);
         gen_store_gpr(t0, rt);
-        opn = "lw";
         break;
     case OPC_LH:
         tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx, MO_TESW |
                            ctx->default_tcg_memop_mask);
         gen_store_gpr(t0, rt);
-        opn = "lh";
         break;
     case OPC_LHU:
         tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx, MO_TEUW |
                            ctx->default_tcg_memop_mask);
         gen_store_gpr(t0, rt);
-        opn = "lhu";
         break;
     case OPC_LB:
         tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx, MO_SB);
         gen_store_gpr(t0, rt);
-        opn = "lb";
         break;
     case OPC_LBU:
         tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx, MO_UB);
         gen_store_gpr(t0, rt);
-        opn = "lbu";
         break;
     case OPC_LWL:
         t1 = tcg_temp_new();
@@ -2254,7 +2237,6 @@  static void gen_ld(DisasContext *ctx, uint32_t opc,
         tcg_temp_free(t1);
         tcg_gen_ext32s_tl(t0, t0);
         gen_store_gpr(t0, rt);
-        opn = "lwl";
         break;
     case OPC_LWR:
         t1 = tcg_temp_new();
@@ -2279,18 +2261,14 @@  static void gen_ld(DisasContext *ctx, uint32_t opc,
         tcg_temp_free(t1);
         tcg_gen_ext32s_tl(t0, t0);
         gen_store_gpr(t0, rt);
-        opn = "lwr";
         break;
     case OPC_LL:
     case R6_OPC_LL:
         save_cpu_state(ctx, 1);
         op_ld_ll(t0, t0, ctx);
         gen_store_gpr(t0, rt);
-        opn = "ll";
         break;
     }
-    (void)opn; /* avoid a compiler warning */
-    MIPS_DEBUG("%s %s, %d(%s)", opn, regnames[rt], offset, regnames[base]);
     tcg_temp_free(t0);
 }
 
@@ -2298,7 +2276,6 @@  static void gen_ld(DisasContext *ctx, uint32_t opc,
 static void gen_st (DisasContext *ctx, uint32_t opc, int rt,
                     int base, int16_t offset)
 {
-    const char *opn = "st";
     TCGv t0 = tcg_temp_new();
     TCGv t1 = tcg_temp_new();
 
@@ -2309,46 +2286,36 @@  static void gen_st (DisasContext *ctx, uint32_t opc, int rt,
     case OPC_SD:
         tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, MO_TEQ |
                            ctx->default_tcg_memop_mask);
-        opn = "sd";
         break;
     case OPC_SDL:
         save_cpu_state(ctx, 1);
         gen_helper_0e2i(sdl, t1, t0, ctx->mem_idx);
-        opn = "sdl";
         break;
     case OPC_SDR:
         save_cpu_state(ctx, 1);
         gen_helper_0e2i(sdr, t1, t0, ctx->mem_idx);
-        opn = "sdr";
         break;
 #endif
     case OPC_SW:
         tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, MO_TEUL |
                            ctx->default_tcg_memop_mask);
-        opn = "sw";
         break;
     case OPC_SH:
         tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, MO_TEUW |
                            ctx->default_tcg_memop_mask);
-        opn = "sh";
         break;
     case OPC_SB:
         tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, MO_8);
-        opn = "sb";
         break;
     case OPC_SWL:
         save_cpu_state(ctx, 1);
         gen_helper_0e2i(swl, t1, t0, ctx->mem_idx);
-        opn = "swl";
         break;
     case OPC_SWR:
         save_cpu_state(ctx, 1);
         gen_helper_0e2i(swr, t1, t0, ctx->mem_idx);
-        opn = "swr";
         break;
     }
-    (void)opn; /* avoid a compiler warning */
-    MIPS_DEBUG("%s %s, %d(%s)", opn, regnames[rt], offset, regnames[base]);
     tcg_temp_free(t0);
     tcg_temp_free(t1);
 }
@@ -2358,7 +2325,6 @@  static void gen_st (DisasContext *ctx, uint32_t opc, int rt,
 static void gen_st_cond (DisasContext *ctx, uint32_t opc, int rt,
                          int base, int16_t offset)
 {
-    const char *opn = "st_cond";
     TCGv t0, t1;
 
 #ifdef CONFIG_USER_ONLY
@@ -2376,18 +2342,14 @@  static void gen_st_cond (DisasContext *ctx, uint32_t opc, int rt,
     case R6_OPC_SCD:
         save_cpu_state(ctx, 1);
         op_st_scd(t1, t0, rt, ctx);
-        opn = "scd";
         break;
 #endif
     case OPC_SC:
     case R6_OPC_SC:
         save_cpu_state(ctx, 1);
         op_st_sc(t1, t0, rt, ctx);
-        opn = "sc";
         break;
     }
-    (void)opn; /* avoid a compiler warning */
-    MIPS_DEBUG("%s %s, %d(%s)", opn, regnames[rt], offset, regnames[base]);
     tcg_temp_free(t1);
     tcg_temp_free(t0);
 }
@@ -2396,7 +2358,6 @@  static void gen_st_cond (DisasContext *ctx, uint32_t opc, int rt,
 static void gen_flt_ldst (DisasContext *ctx, uint32_t opc, int ft,
                           int base, int16_t offset)
 {
-    const char *opn = "flt_ldst";
     TCGv t0 = tcg_temp_new();
 
     gen_base_offset_addr(ctx, t0, base, offset);
@@ -2411,7 +2372,6 @@  static void gen_flt_ldst (DisasContext *ctx, uint32_t opc, int ft,
             gen_store_fpr32(ctx, fp0, ft);
             tcg_temp_free_i32(fp0);
         }
-        opn = "lwc1";
         break;
     case OPC_SWC1:
         {
@@ -2421,7 +2381,6 @@  static void gen_flt_ldst (DisasContext *ctx, uint32_t opc, int ft,
                                 ctx->default_tcg_memop_mask);
             tcg_temp_free_i32(fp0);
         }
-        opn = "swc1";
         break;
     case OPC_LDC1:
         {
@@ -2431,7 +2390,6 @@  static void gen_flt_ldst (DisasContext *ctx, uint32_t opc, int ft,
             gen_store_fpr64(ctx, fp0, ft);
             tcg_temp_free_i64(fp0);
         }
-        opn = "ldc1";
         break;
     case OPC_SDC1:
         {
@@ -2441,15 +2399,12 @@  static void gen_flt_ldst (DisasContext *ctx, uint32_t opc, int ft,
                                 ctx->default_tcg_memop_mask);
             tcg_temp_free_i64(fp0);
         }
-        opn = "sdc1";
         break;
     default:
-        MIPS_INVAL(opn);
+        MIPS_INVAL("flt_ldst");
         generate_exception(ctx, EXCP_RI);
         goto out;
     }
-    (void)opn; /* avoid a compiler warning */
-    MIPS_DEBUG("%s %s, %d(%s)", opn, fregnames[ft], offset, regnames[base]);
  out:
     tcg_temp_free(t0);
 }
@@ -2477,12 +2432,10 @@  static void gen_arith_imm(DisasContext *ctx, uint32_t opc,
                           int rt, int rs, int16_t imm)
 {
     target_ulong uimm = (target_long)imm; /* Sign extend to 32/64 bits */
-    const char *opn = "imm arith";
 
     if (rt == 0 && opc != OPC_ADDI && opc != OPC_DADDI) {
         /* If no destination, treat it as a NOP.
            For addi, we must generate the overflow exception when needed. */
-        MIPS_DEBUG("NOP");
         return;
     }
     switch (opc) {
@@ -2510,7 +2463,6 @@  static void gen_arith_imm(DisasContext *ctx, uint32_t opc,
             gen_store_gpr(t0, rt);
             tcg_temp_free(t0);
         }
-        opn = "addi";
         break;
     case OPC_ADDIU:
         if (rs != 0) {
@@ -2519,7 +2471,6 @@  static void gen_arith_imm(DisasContext *ctx, uint32_t opc,
         } else {
             tcg_gen_movi_tl(cpu_gpr[rt], uimm);
         }
-        opn = "addiu";
         break;
 #if defined(TARGET_MIPS64)
     case OPC_DADDI:
@@ -2544,7 +2495,6 @@  static void gen_arith_imm(DisasContext *ctx, uint32_t opc,
             gen_store_gpr(t0, rt);
             tcg_temp_free(t0);
         }
-        opn = "daddi";
         break;
     case OPC_DADDIU:
         if (rs != 0) {
@@ -2552,12 +2502,9 @@  static void gen_arith_imm(DisasContext *ctx, uint32_t opc,
         } else {
             tcg_gen_movi_tl(cpu_gpr[rt], uimm);
         }
-        opn = "daddiu";
         break;
 #endif
     }
-    (void)opn; /* avoid a compiler warning */
-    MIPS_DEBUG("%s %s, %s, " TARGET_FMT_lx, opn, regnames[rt], regnames[rs], uimm);
 }
 
 /* Logic with immediate operand */
@@ -2568,7 +2515,6 @@  static void gen_logic_imm(DisasContext *ctx, uint32_t opc,
 
     if (rt == 0) {
         /* If no destination, treat it as a NOP. */
-        MIPS_DEBUG("NOP");
         return;
     }
     uimm = (uint16_t)imm;
@@ -2578,39 +2524,30 @@  static void gen_logic_imm(DisasContext *ctx, uint32_t opc,
             tcg_gen_andi_tl(cpu_gpr[rt], cpu_gpr[rs], uimm);
         else
             tcg_gen_movi_tl(cpu_gpr[rt], 0);
-        MIPS_DEBUG("andi %s, %s, " TARGET_FMT_lx, regnames[rt],
-                   regnames[rs], uimm);
         break;
     case OPC_ORI:
         if (rs != 0)
             tcg_gen_ori_tl(cpu_gpr[rt], cpu_gpr[rs], uimm);
         else
             tcg_gen_movi_tl(cpu_gpr[rt], uimm);
-        MIPS_DEBUG("ori %s, %s, " TARGET_FMT_lx, regnames[rt],
-                   regnames[rs], uimm);
         break;
     case OPC_XORI:
         if (likely(rs != 0))
             tcg_gen_xori_tl(cpu_gpr[rt], cpu_gpr[rs], uimm);
         else
             tcg_gen_movi_tl(cpu_gpr[rt], uimm);
-        MIPS_DEBUG("xori %s, %s, " TARGET_FMT_lx, regnames[rt],
-                   regnames[rs], uimm);
         break;
     case OPC_LUI:
         if (rs != 0 && (ctx->insn_flags & ISA_MIPS32R6)) {
             /* OPC_AUI */
             tcg_gen_addi_tl(cpu_gpr[rt], cpu_gpr[rs], imm << 16);
             tcg_gen_ext32s_tl(cpu_gpr[rt], cpu_gpr[rt]);
-            MIPS_DEBUG("aui %s, %s, %04x", regnames[rt], regnames[rs], imm);
         } else {
             tcg_gen_movi_tl(cpu_gpr[rt], imm << 16);
-            MIPS_DEBUG("lui %s, " TARGET_FMT_lx, regnames[rt], uimm);
         }
         break;
 
     default:
-        MIPS_DEBUG("Unknown logical immediate opcode %08x", opc);
         break;
     }
 }
@@ -2620,12 +2557,10 @@  static void gen_slt_imm(DisasContext *ctx, uint32_t opc,
                         int rt, int rs, int16_t imm)
 {
     target_ulong uimm = (target_long)imm; /* Sign extend to 32/64 bits */
-    const char *opn = "imm arith";
     TCGv t0;
 
     if (rt == 0) {
         /* If no destination, treat it as a NOP. */
-        MIPS_DEBUG("NOP");
         return;
     }
     t0 = tcg_temp_new();
@@ -2633,15 +2568,11 @@  static void gen_slt_imm(DisasContext *ctx, uint32_t opc,
     switch (opc) {
     case OPC_SLTI:
         tcg_gen_setcondi_tl(TCG_COND_LT, cpu_gpr[rt], t0, uimm);
-        opn = "slti";
         break;
     case OPC_SLTIU:
         tcg_gen_setcondi_tl(TCG_COND_LTU, cpu_gpr[rt], t0, uimm);
-        opn = "sltiu";
         break;
     }
-    (void)opn; /* avoid a compiler warning */
-    MIPS_DEBUG("%s %s, %s, " TARGET_FMT_lx, opn, regnames[rt], regnames[rs], uimm);
     tcg_temp_free(t0);
 }
 
@@ -2650,12 +2581,10 @@  static void gen_shift_imm(DisasContext *ctx, uint32_t opc,
                           int rt, int rs, int16_t imm)
 {
     target_ulong uimm = ((uint16_t)imm) & 0x1f;
-    const char *opn = "imm shift";
     TCGv t0;
 
     if (rt == 0) {
         /* If no destination, treat it as a NOP. */
-        MIPS_DEBUG("NOP");
         return;
     }
 
@@ -2665,11 +2594,9 @@  static void gen_shift_imm(DisasContext *ctx, uint32_t opc,
     case OPC_SLL:
         tcg_gen_shli_tl(t0, t0, uimm);
         tcg_gen_ext32s_tl(cpu_gpr[rt], t0);
-        opn = "sll";
         break;
     case OPC_SRA:
         tcg_gen_sari_tl(cpu_gpr[rt], t0, uimm);
-        opn = "sra";
         break;
     case OPC_SRL:
         if (uimm != 0) {
@@ -2678,7 +2605,6 @@  static void gen_shift_imm(DisasContext *ctx, uint32_t opc,
         } else {
             tcg_gen_ext32s_tl(cpu_gpr[rt], t0);
         }
-        opn = "srl";
         break;
     case OPC_ROTR:
         if (uimm != 0) {
@@ -2691,20 +2617,16 @@  static void gen_shift_imm(DisasContext *ctx, uint32_t opc,
         } else {
             tcg_gen_ext32s_tl(cpu_gpr[rt], t0);
         }
-        opn = "rotr";
         break;
 #if defined(TARGET_MIPS64)
     case OPC_DSLL:
         tcg_gen_shli_tl(cpu_gpr[rt], t0, uimm);
-        opn = "dsll";
         break;
     case OPC_DSRA:
         tcg_gen_sari_tl(cpu_gpr[rt], t0, uimm);
-        opn = "dsra";
         break;
     case OPC_DSRL:
         tcg_gen_shri_tl(cpu_gpr[rt], t0, uimm);
-        opn = "dsrl";
         break;
     case OPC_DROTR:
         if (uimm != 0) {
@@ -2712,28 +2634,21 @@  static void gen_shift_imm(DisasContext *ctx, uint32_t opc,
         } else {
             tcg_gen_mov_tl(cpu_gpr[rt], t0);
         }
-        opn = "drotr";
         break;
     case OPC_DSLL32:
         tcg_gen_shli_tl(cpu_gpr[rt], t0, uimm + 32);
-        opn = "dsll32";
         break;
     case OPC_DSRA32:
         tcg_gen_sari_tl(cpu_gpr[rt], t0, uimm + 32);
-        opn = "dsra32";
         break;
     case OPC_DSRL32:
         tcg_gen_shri_tl(cpu_gpr[rt], t0, uimm + 32);
-        opn = "dsrl32";
         break;
     case OPC_DROTR32:
         tcg_gen_rotri_tl(cpu_gpr[rt], t0, uimm + 32);
-        opn = "drotr32";
         break;
 #endif
     }
-    (void)opn; /* avoid a compiler warning */
-    MIPS_DEBUG("%s %s, %s, " TARGET_FMT_lx, opn, regnames[rt], regnames[rs], uimm);
     tcg_temp_free(t0);
 }
 
@@ -2741,13 +2656,10 @@  static void gen_shift_imm(DisasContext *ctx, uint32_t opc,
 static void gen_arith(DisasContext *ctx, uint32_t opc,
                       int rd, int rs, int rt)
 {
-    const char *opn = "arith";
-
     if (rd == 0 && opc != OPC_ADD && opc != OPC_SUB
        && opc != OPC_DADD && opc != OPC_DSUB) {
         /* If no destination, treat it as a NOP.
            For add & sub, we must generate the overflow exception when needed. */
-        MIPS_DEBUG("NOP");
         return;
     }
 
@@ -2775,7 +2687,6 @@  static void gen_arith(DisasContext *ctx, uint32_t opc,
             gen_store_gpr(t0, rd);
             tcg_temp_free(t0);
         }
-        opn = "add";
         break;
     case OPC_ADDU:
         if (rs != 0 && rt != 0) {
@@ -2788,7 +2699,6 @@  static void gen_arith(DisasContext *ctx, uint32_t opc,
         } else {
             tcg_gen_movi_tl(cpu_gpr[rd], 0);
         }
-        opn = "addu";
         break;
     case OPC_SUB:
         {
@@ -2813,7 +2723,6 @@  static void gen_arith(DisasContext *ctx, uint32_t opc,
             gen_store_gpr(t0, rd);
             tcg_temp_free(t0);
         }
-        opn = "sub";
         break;
     case OPC_SUBU:
         if (rs != 0 && rt != 0) {
@@ -2827,7 +2736,6 @@  static void gen_arith(DisasContext *ctx, uint32_t opc,
         } else {
             tcg_gen_movi_tl(cpu_gpr[rd], 0);
         }
-        opn = "subu";
         break;
 #if defined(TARGET_MIPS64)
     case OPC_DADD:
@@ -2852,7 +2760,6 @@  static void gen_arith(DisasContext *ctx, uint32_t opc,
             gen_store_gpr(t0, rd);
             tcg_temp_free(t0);
         }
-        opn = "dadd";
         break;
     case OPC_DADDU:
         if (rs != 0 && rt != 0) {
@@ -2864,7 +2771,6 @@  static void gen_arith(DisasContext *ctx, uint32_t opc,
         } else {
             tcg_gen_movi_tl(cpu_gpr[rd], 0);
         }
-        opn = "daddu";
         break;
     case OPC_DSUB:
         {
@@ -2888,7 +2794,6 @@  static void gen_arith(DisasContext *ctx, uint32_t opc,
             gen_store_gpr(t0, rd);
             tcg_temp_free(t0);
         }
-        opn = "dsub";
         break;
     case OPC_DSUBU:
         if (rs != 0 && rt != 0) {
@@ -2900,7 +2805,6 @@  static void gen_arith(DisasContext *ctx, uint32_t opc,
         } else {
             tcg_gen_movi_tl(cpu_gpr[rd], 0);
         }
-        opn = "dsubu";
         break;
 #endif
     case OPC_MUL:
@@ -2910,23 +2814,18 @@  static void gen_arith(DisasContext *ctx, uint32_t opc,
         } else {
             tcg_gen_movi_tl(cpu_gpr[rd], 0);
         }
-        opn = "mul";
         break;
     }
-    (void)opn; /* avoid a compiler warning */
-    MIPS_DEBUG("%s %s, %s, %s", opn, regnames[rd], regnames[rs], regnames[rt]);
 }
 
 /* Conditional move */
 static void gen_cond_move(DisasContext *ctx, uint32_t opc,
                           int rd, int rs, int rt)
 {
-    const char *opn = "cond move";
     TCGv t0, t1, t2;
 
     if (rd == 0) {
         /* If no destination, treat it as a NOP. */
-        MIPS_DEBUG("NOP");
         return;
     }
 
@@ -2938,38 +2837,28 @@  static void gen_cond_move(DisasContext *ctx, uint32_t opc,
     switch (opc) {
     case OPC_MOVN:
         tcg_gen_movcond_tl(TCG_COND_NE, cpu_gpr[rd], t0, t1, t2, cpu_gpr[rd]);
-        opn = "movn";
         break;
     case OPC_MOVZ:
         tcg_gen_movcond_tl(TCG_COND_EQ, cpu_gpr[rd], t0, t1, t2, cpu_gpr[rd]);
-        opn = "movz";
         break;
     case OPC_SELNEZ:
         tcg_gen_movcond_tl(TCG_COND_NE, cpu_gpr[rd], t0, t1, t2, t1);
-        opn = "selnez";
         break;
     case OPC_SELEQZ:
         tcg_gen_movcond_tl(TCG_COND_EQ, cpu_gpr[rd], t0, t1, t2, t1);
-        opn = "seleqz";
         break;
     }
     tcg_temp_free(t2);
     tcg_temp_free(t1);
     tcg_temp_free(t0);
-
-    (void)opn; /* avoid a compiler warning */
-    MIPS_DEBUG("%s %s, %s, %s", opn, regnames[rd], regnames[rs], regnames[rt]);
 }
 
 /* Logic */
 static void gen_logic(DisasContext *ctx, uint32_t opc,
                       int rd, int rs, int rt)
 {
-    const char *opn = "logic";
-
     if (rd == 0) {
         /* If no destination, treat it as a NOP. */
-        MIPS_DEBUG("NOP");
         return;
     }
 
@@ -2980,7 +2869,6 @@  static void gen_logic(DisasContext *ctx, uint32_t opc,
         } else {
             tcg_gen_movi_tl(cpu_gpr[rd], 0);
         }
-        opn = "and";
         break;
     case OPC_NOR:
         if (rs != 0 && rt != 0) {
@@ -2992,7 +2880,6 @@  static void gen_logic(DisasContext *ctx, uint32_t opc,
         } else {
             tcg_gen_movi_tl(cpu_gpr[rd], ~((target_ulong)0));
         }
-        opn = "nor";
         break;
     case OPC_OR:
         if (likely(rs != 0 && rt != 0)) {
@@ -3004,7 +2891,6 @@  static void gen_logic(DisasContext *ctx, uint32_t opc,
         } else {
             tcg_gen_movi_tl(cpu_gpr[rd], 0);
         }
-        opn = "or";
         break;
     case OPC_XOR:
         if (likely(rs != 0 && rt != 0)) {
@@ -3016,23 +2902,18 @@  static void gen_logic(DisasContext *ctx, uint32_t opc,
         } else {
             tcg_gen_movi_tl(cpu_gpr[rd], 0);
         }
-        opn = "xor";
         break;
     }
-    (void)opn; /* avoid a compiler warning */
-    MIPS_DEBUG("%s %s, %s, %s", opn, regnames[rd], regnames[rs], regnames[rt]);
 }
 
 /* Set on lower than */
 static void gen_slt(DisasContext *ctx, uint32_t opc,
                     int rd, int rs, int rt)
 {
-    const char *opn = "slt";
     TCGv t0, t1;
 
     if (rd == 0) {
         /* If no destination, treat it as a NOP. */
-        MIPS_DEBUG("NOP");
         return;
     }
 
@@ -3043,15 +2924,11 @@  static void gen_slt(DisasContext *ctx, uint32_t opc,
     switch (opc) {
     case OPC_SLT:
         tcg_gen_setcond_tl(TCG_COND_LT, cpu_gpr[rd], t0, t1);
-        opn = "slt";
         break;
     case OPC_SLTU:
         tcg_gen_setcond_tl(TCG_COND_LTU, cpu_gpr[rd], t0, t1);
-        opn = "sltu";
         break;
     }
-    (void)opn; /* avoid a compiler warning */
-    MIPS_DEBUG("%s %s, %s, %s", opn, regnames[rd], regnames[rs], regnames[rt]);
     tcg_temp_free(t0);
     tcg_temp_free(t1);
 }
@@ -3060,13 +2937,11 @@  static void gen_slt(DisasContext *ctx, uint32_t opc,
 static void gen_shift(DisasContext *ctx, uint32_t opc,
                       int rd, int rs, int rt)
 {
-    const char *opn = "shifts";
     TCGv t0, t1;
 
     if (rd == 0) {
         /* If no destination, treat it as a NOP.
            For add & sub, we must generate the overflow exception when needed. */
-        MIPS_DEBUG("NOP");
         return;
     }
 
@@ -3079,19 +2954,16 @@  static void gen_shift(DisasContext *ctx, uint32_t opc,
         tcg_gen_andi_tl(t0, t0, 0x1f);
         tcg_gen_shl_tl(t0, t1, t0);
         tcg_gen_ext32s_tl(cpu_gpr[rd], t0);
-        opn = "sllv";
         break;
     case OPC_SRAV:
         tcg_gen_andi_tl(t0, t0, 0x1f);
         tcg_gen_sar_tl(cpu_gpr[rd], t1, t0);
-        opn = "srav";
         break;
     case OPC_SRLV:
         tcg_gen_ext32u_tl(t1, t1);
         tcg_gen_andi_tl(t0, t0, 0x1f);
         tcg_gen_shr_tl(t0, t1, t0);
         tcg_gen_ext32s_tl(cpu_gpr[rd], t0);
-        opn = "srlv";
         break;
     case OPC_ROTRV:
         {
@@ -3105,34 +2977,27 @@  static void gen_shift(DisasContext *ctx, uint32_t opc,
             tcg_gen_ext_i32_tl(cpu_gpr[rd], t2);
             tcg_temp_free_i32(t2);
             tcg_temp_free_i32(t3);
-            opn = "rotrv";
         }
         break;
 #if defined(TARGET_MIPS64)
     case OPC_DSLLV:
         tcg_gen_andi_tl(t0, t0, 0x3f);
         tcg_gen_shl_tl(cpu_gpr[rd], t1, t0);
-        opn = "dsllv";
         break;
     case OPC_DSRAV:
         tcg_gen_andi_tl(t0, t0, 0x3f);
         tcg_gen_sar_tl(cpu_gpr[rd], t1, t0);
-        opn = "dsrav";
         break;
     case OPC_DSRLV:
         tcg_gen_andi_tl(t0, t0, 0x3f);
         tcg_gen_shr_tl(cpu_gpr[rd], t1, t0);
-        opn = "dsrlv";
         break;
     case OPC_DROTRV:
         tcg_gen_andi_tl(t0, t0, 0x3f);
         tcg_gen_rotr_tl(cpu_gpr[rd], t1, t0);
-        opn = "drotrv";
         break;
 #endif
     }
-    (void)opn; /* avoid a compiler warning */
-    MIPS_DEBUG("%s %s, %s, %s", opn, regnames[rd], regnames[rs], regnames[rt]);
     tcg_temp_free(t0);
     tcg_temp_free(t1);
 }
@@ -3140,11 +3005,8 @@  static void gen_shift(DisasContext *ctx, uint32_t opc,
 /* Arithmetic on HI/LO registers */
 static void gen_HILO(DisasContext *ctx, uint32_t opc, int acc, int reg)
 {
-    const char *opn = "hilo";
-
     if (reg == 0 && (opc == OPC_MFHI || opc == OPC_MFLO)) {
         /* Treat as NOP. */
-        MIPS_DEBUG("NOP");
         return;
     }
 
@@ -3162,7 +3024,6 @@  static void gen_HILO(DisasContext *ctx, uint32_t opc, int acc, int reg)
         {
             tcg_gen_mov_tl(cpu_gpr[reg], cpu_HI[acc]);
         }
-        opn = "mfhi";
         break;
     case OPC_MFLO:
 #if defined(TARGET_MIPS64)
@@ -3173,7 +3034,6 @@  static void gen_HILO(DisasContext *ctx, uint32_t opc, int acc, int reg)
         {
             tcg_gen_mov_tl(cpu_gpr[reg], cpu_LO[acc]);
         }
-        opn = "mflo";
         break;
     case OPC_MTHI:
         if (reg != 0) {
@@ -3188,7 +3048,6 @@  static void gen_HILO(DisasContext *ctx, uint32_t opc, int acc, int reg)
         } else {
             tcg_gen_movi_tl(cpu_HI[acc], 0);
         }
-        opn = "mthi";
         break;
     case OPC_MTLO:
         if (reg != 0) {
@@ -3203,11 +3062,8 @@  static void gen_HILO(DisasContext *ctx, uint32_t opc, int acc, int reg)
         } else {
             tcg_gen_movi_tl(cpu_LO[acc], 0);
         }
-        opn = "mtlo";
         break;
     }
-    (void)opn; /* avoid a compiler warning */
-    MIPS_DEBUG("%s %s", opn, regnames[reg]);
 }
 
 static inline void gen_r6_ld(target_long addr, int reg, int memidx,
@@ -3284,12 +3140,10 @@  static inline void gen_pcrel(DisasContext *ctx, int opc, target_ulong pc,
 
 static void gen_r6_muldiv(DisasContext *ctx, int opc, int rd, int rs, int rt)
 {
-    const char *opn = "r6 mul/div";
     TCGv t0, t1;
 
     if (rd == 0) {
         /* Treat as NOP. */
-        MIPS_DEBUG("NOP");
         return;
     }
 
@@ -3318,7 +3172,6 @@  static void gen_r6_muldiv(DisasContext *ctx, int opc, int rd, int rs, int rt)
             tcg_temp_free(t3);
             tcg_temp_free(t2);
         }
-        opn = "div";
         break;
     case R6_OPC_MOD:
         {
@@ -3338,7 +3191,6 @@  static void gen_r6_muldiv(DisasContext *ctx, int opc, int rd, int rs, int rt)
             tcg_temp_free(t3);
             tcg_temp_free(t2);
         }
-        opn = "mod";
         break;
     case R6_OPC_DIVU:
         {
@@ -3352,7 +3204,6 @@  static void gen_r6_muldiv(DisasContext *ctx, int opc, int rd, int rs, int rt)
             tcg_temp_free(t3);
             tcg_temp_free(t2);
         }
-        opn = "divu";
         break;
     case R6_OPC_MODU:
         {
@@ -3366,7 +3217,6 @@  static void gen_r6_muldiv(DisasContext *ctx, int opc, int rd, int rs, int rt)
             tcg_temp_free(t3);
             tcg_temp_free(t2);
         }
-        opn = "modu";
         break;
     case R6_OPC_MUL:
         {
@@ -3379,7 +3229,6 @@  static void gen_r6_muldiv(DisasContext *ctx, int opc, int rd, int rs, int rt)
             tcg_temp_free_i32(t2);
             tcg_temp_free_i32(t3);
         }
-        opn = "mul";
         break;
     case R6_OPC_MUH:
         {
@@ -3392,7 +3241,6 @@  static void gen_r6_muldiv(DisasContext *ctx, int opc, int rd, int rs, int rt)
             tcg_temp_free_i32(t2);
             tcg_temp_free_i32(t3);
         }
-        opn = "muh";
         break;
     case R6_OPC_MULU:
         {
@@ -3405,7 +3253,6 @@  static void gen_r6_muldiv(DisasContext *ctx, int opc, int rd, int rs, int rt)
             tcg_temp_free_i32(t2);
             tcg_temp_free_i32(t3);
         }
-        opn = "mulu";
         break;
     case R6_OPC_MUHU:
         {
@@ -3418,7 +3265,6 @@  static void gen_r6_muldiv(DisasContext *ctx, int opc, int rd, int rs, int rt)
             tcg_temp_free_i32(t2);
             tcg_temp_free_i32(t3);
         }
-        opn = "muhu";
         break;
 #if defined(TARGET_MIPS64)
     case R6_OPC_DDIV:
@@ -3436,7 +3282,6 @@  static void gen_r6_muldiv(DisasContext *ctx, int opc, int rd, int rs, int rt)
             tcg_temp_free(t3);
             tcg_temp_free(t2);
         }
-        opn = "ddiv";
         break;
     case R6_OPC_DMOD:
         {
@@ -3453,7 +3298,6 @@  static void gen_r6_muldiv(DisasContext *ctx, int opc, int rd, int rs, int rt)
             tcg_temp_free(t3);
             tcg_temp_free(t2);
         }
-        opn = "dmod";
         break;
     case R6_OPC_DDIVU:
         {
@@ -3464,7 +3308,6 @@  static void gen_r6_muldiv(DisasContext *ctx, int opc, int rd, int rs, int rt)
             tcg_temp_free(t3);
             tcg_temp_free(t2);
         }
-        opn = "ddivu";
         break;
     case R6_OPC_DMODU:
         {
@@ -3475,11 +3318,9 @@  static void gen_r6_muldiv(DisasContext *ctx, int opc, int rd, int rs, int rt)
             tcg_temp_free(t3);
             tcg_temp_free(t2);
         }
-        opn = "dmodu";
         break;
     case R6_OPC_DMUL:
         tcg_gen_mul_i64(cpu_gpr[rd], t0, t1);
-        opn = "dmul";
         break;
     case R6_OPC_DMUH:
         {
@@ -3487,11 +3328,9 @@  static void gen_r6_muldiv(DisasContext *ctx, int opc, int rd, int rs, int rt)
             tcg_gen_muls2_i64(t2, cpu_gpr[rd], t0, t1);
             tcg_temp_free(t2);
         }
-        opn = "dmuh";
         break;
     case R6_OPC_DMULU:
         tcg_gen_mul_i64(cpu_gpr[rd], t0, t1);
-        opn = "dmulu";
         break;
     case R6_OPC_DMUHU:
         {
@@ -3499,16 +3338,13 @@  static void gen_r6_muldiv(DisasContext *ctx, int opc, int rd, int rs, int rt)
             tcg_gen_mulu2_i64(t2, cpu_gpr[rd], t0, t1);
             tcg_temp_free(t2);
         }
-        opn = "dmuhu";
         break;
 #endif
     default:
-        MIPS_INVAL(opn);
+        MIPS_INVAL("r6 mul/div");
         generate_exception(ctx, EXCP_RI);
         goto out;
     }
-    (void)opn; /* avoid a compiler warning */
-    MIPS_DEBUG("%s %s %s", opn, regnames[rs], regnames[rt]);
  out:
     tcg_temp_free(t0);
     tcg_temp_free(t1);
@@ -3517,7 +3353,6 @@  static void gen_r6_muldiv(DisasContext *ctx, int opc, int rd, int rs, int rt)
 static void gen_muldiv(DisasContext *ctx, uint32_t opc,
                        int acc, int rs, int rt)
 {
-    const char *opn = "mul/div";
     TCGv t0, t1;
 
     t0 = tcg_temp_new();
@@ -3551,7 +3386,6 @@  static void gen_muldiv(DisasContext *ctx, uint32_t opc,
             tcg_temp_free(t3);
             tcg_temp_free(t2);
         }
-        opn = "div";
         break;
     case OPC_DIVU:
         {
@@ -3567,7 +3401,6 @@  static void gen_muldiv(DisasContext *ctx, uint32_t opc,
             tcg_temp_free(t3);
             tcg_temp_free(t2);
         }
-        opn = "divu";
         break;
     case OPC_MULT:
         {
@@ -3581,7 +3414,6 @@  static void gen_muldiv(DisasContext *ctx, uint32_t opc,
             tcg_temp_free_i32(t2);
             tcg_temp_free_i32(t3);
         }
-        opn = "mult";
         break;
     case OPC_MULTU:
         {
@@ -3595,7 +3427,6 @@  static void gen_muldiv(DisasContext *ctx, uint32_t opc,
             tcg_temp_free_i32(t2);
             tcg_temp_free_i32(t3);
         }
-        opn = "multu";
         break;
 #if defined(TARGET_MIPS64)
     case OPC_DDIV:
@@ -3614,7 +3445,6 @@  static void gen_muldiv(DisasContext *ctx, uint32_t opc,
             tcg_temp_free(t3);
             tcg_temp_free(t2);
         }
-        opn = "ddiv";
         break;
     case OPC_DDIVU:
         {
@@ -3626,15 +3456,12 @@  static void gen_muldiv(DisasContext *ctx, uint32_t opc,
             tcg_temp_free(t3);
             tcg_temp_free(t2);
         }
-        opn = "ddivu";
         break;
     case OPC_DMULT:
         tcg_gen_muls2_i64(cpu_LO[acc], cpu_HI[acc], t0, t1);
-        opn = "dmult";
         break;
     case OPC_DMULTU:
         tcg_gen_mulu2_i64(cpu_LO[acc], cpu_HI[acc], t0, t1);
-        opn = "dmultu";
         break;
 #endif
     case OPC_MADD:
@@ -3655,7 +3482,6 @@  static void gen_muldiv(DisasContext *ctx, uint32_t opc,
             tcg_gen_ext32s_tl(cpu_LO[acc], t0);
             tcg_gen_ext32s_tl(cpu_HI[acc], t1);
         }
-        opn = "madd";
         break;
     case OPC_MADDU:
         {
@@ -3677,7 +3503,6 @@  static void gen_muldiv(DisasContext *ctx, uint32_t opc,
             tcg_gen_ext32s_tl(cpu_LO[acc], t0);
             tcg_gen_ext32s_tl(cpu_HI[acc], t1);
         }
-        opn = "maddu";
         break;
     case OPC_MSUB:
         {
@@ -3697,7 +3522,6 @@  static void gen_muldiv(DisasContext *ctx, uint32_t opc,
             tcg_gen_ext32s_tl(cpu_LO[acc], t0);
             tcg_gen_ext32s_tl(cpu_HI[acc], t1);
         }
-        opn = "msub";
         break;
     case OPC_MSUBU:
         {
@@ -3719,15 +3543,12 @@  static void gen_muldiv(DisasContext *ctx, uint32_t opc,
             tcg_gen_ext32s_tl(cpu_LO[acc], t0);
             tcg_gen_ext32s_tl(cpu_HI[acc], t1);
         }
-        opn = "msubu";
         break;
     default:
-        MIPS_INVAL(opn);
+        MIPS_INVAL("mul/div");
         generate_exception(ctx, EXCP_RI);
         goto out;
     }
-    (void)opn; /* avoid a compiler warning */
-    MIPS_DEBUG("%s %s %s", opn, regnames[rs], regnames[rt]);
  out:
     tcg_temp_free(t0);
     tcg_temp_free(t1);
@@ -3736,7 +3557,6 @@  static void gen_muldiv(DisasContext *ctx, uint32_t opc,
 static void gen_mul_vr54xx (DisasContext *ctx, uint32_t opc,
                             int rd, int rs, int rt)
 {
-    const char *opn = "mul vr54xx";
     TCGv t0 = tcg_temp_new();
     TCGv t1 = tcg_temp_new();
 
@@ -3746,59 +3566,45 @@  static void gen_mul_vr54xx (DisasContext *ctx, uint32_t opc,
     switch (opc) {
     case OPC_VR54XX_MULS:
         gen_helper_muls(t0, cpu_env, t0, t1);
-        opn = "muls";
         break;
     case OPC_VR54XX_MULSU:
         gen_helper_mulsu(t0, cpu_env, t0, t1);
-        opn = "mulsu";
         break;
     case OPC_VR54XX_MACC:
         gen_helper_macc(t0, cpu_env, t0, t1);
-        opn = "macc";
         break;
     case OPC_VR54XX_MACCU:
         gen_helper_maccu(t0, cpu_env, t0, t1);
-        opn = "maccu";
         break;
     case OPC_VR54XX_MSAC:
         gen_helper_msac(t0, cpu_env, t0, t1);
-        opn = "msac";
         break;
     case OPC_VR54XX_MSACU:
         gen_helper_msacu(t0, cpu_env, t0, t1);
-        opn = "msacu";
         break;
     case OPC_VR54XX_MULHI:
         gen_helper_mulhi(t0, cpu_env, t0, t1);
-        opn = "mulhi";
         break;
     case OPC_VR54XX_MULHIU:
         gen_helper_mulhiu(t0, cpu_env, t0, t1);
-        opn = "mulhiu";
         break;
     case OPC_VR54XX_MULSHI:
         gen_helper_mulshi(t0, cpu_env, t0, t1);
-        opn = "mulshi";
         break;
     case OPC_VR54XX_MULSHIU:
         gen_helper_mulshiu(t0, cpu_env, t0, t1);
-        opn = "mulshiu";
         break;
     case OPC_VR54XX_MACCHI:
         gen_helper_macchi(t0, cpu_env, t0, t1);
-        opn = "macchi";
         break;
     case OPC_VR54XX_MACCHIU:
         gen_helper_macchiu(t0, cpu_env, t0, t1);
-        opn = "macchiu";
         break;
     case OPC_VR54XX_MSACHI:
         gen_helper_msachi(t0, cpu_env, t0, t1);
-        opn = "msachi";
         break;
     case OPC_VR54XX_MSACHIU:
         gen_helper_msachiu(t0, cpu_env, t0, t1);
-        opn = "msachiu";
         break;
     default:
         MIPS_INVAL("mul vr54xx");
@@ -3806,8 +3612,6 @@  static void gen_mul_vr54xx (DisasContext *ctx, uint32_t opc,
         goto out;
     }
     gen_store_gpr(t0, rd);
-    (void)opn; /* avoid a compiler warning */
-    MIPS_DEBUG("%s %s, %s, %s", opn, regnames[rd], regnames[rs], regnames[rt]);
 
  out:
     tcg_temp_free(t0);
@@ -3817,12 +3621,10 @@  static void gen_mul_vr54xx (DisasContext *ctx, uint32_t opc,
 static void gen_cl (DisasContext *ctx, uint32_t opc,
                     int rd, int rs)
 {
-    const char *opn = "CLx";
     TCGv t0;
 
     if (rd == 0) {
         /* Treat as NOP. */
-        MIPS_DEBUG("NOP");
         return;
     }
     t0 = tcg_temp_new();
@@ -3831,28 +3633,22 @@  static void gen_cl (DisasContext *ctx, uint32_t opc,
     case OPC_CLO:
     case R6_OPC_CLO:
         gen_helper_clo(cpu_gpr[rd], t0);
-        opn = "clo";
         break;
     case OPC_CLZ:
     case R6_OPC_CLZ:
         gen_helper_clz(cpu_gpr[rd], t0);
-        opn = "clz";
         break;
 #if defined(TARGET_MIPS64)
     case OPC_DCLO:
     case R6_OPC_DCLO:
         gen_helper_dclo(cpu_gpr[rd], t0);
-        opn = "dclo";
         break;
     case OPC_DCLZ:
     case R6_OPC_DCLZ:
         gen_helper_dclz(cpu_gpr[rd], t0);
-        opn = "dclz";
         break;
 #endif
     }
-    (void)opn; /* avoid a compiler warning */
-    MIPS_DEBUG("%s %s, %s", opn, regnames[rd], regnames[rs]);
     tcg_temp_free(t0);
 }
 
@@ -3860,12 +3656,10 @@  static void gen_cl (DisasContext *ctx, uint32_t opc,
 static void gen_loongson_integer(DisasContext *ctx, uint32_t opc,
                                  int rd, int rs, int rt)
 {
-    const char *opn = "loongson";
     TCGv t0, t1;
 
     if (rd == 0) {
         /* Treat as NOP. */
-        MIPS_DEBUG("NOP");
         return;
     }
 
@@ -3897,7 +3691,6 @@  static void gen_loongson_integer(DisasContext *ctx, uint32_t opc,
     case OPC_MULT_G_2F:
         tcg_gen_mul_tl(cpu_gpr[rd], t0, t1);
         tcg_gen_ext32s_tl(cpu_gpr[rd], cpu_gpr[rd]);
-        opn = "mult.g";
         break;
     case OPC_MULTU_G_2E:
     case OPC_MULTU_G_2F:
@@ -3905,7 +3698,6 @@  static void gen_loongson_integer(DisasContext *ctx, uint32_t opc,
         tcg_gen_ext32u_tl(t1, t1);
         tcg_gen_mul_tl(cpu_gpr[rd], t0, t1);
         tcg_gen_ext32s_tl(cpu_gpr[rd], cpu_gpr[rd]);
-        opn = "multu.g";
         break;
     case OPC_DIV_G_2E:
     case OPC_DIV_G_2F:
@@ -3928,7 +3720,6 @@  static void gen_loongson_integer(DisasContext *ctx, uint32_t opc,
             tcg_gen_ext32s_tl(cpu_gpr[rd], cpu_gpr[rd]);
             gen_set_label(l3);
         }
-        opn = "div.g";
         break;
     case OPC_DIVU_G_2E:
     case OPC_DIVU_G_2F:
@@ -3945,7 +3736,6 @@  static void gen_loongson_integer(DisasContext *ctx, uint32_t opc,
             tcg_gen_ext32s_tl(cpu_gpr[rd], cpu_gpr[rd]);
             gen_set_label(l2);
         }
-        opn = "divu.g";
         break;
     case OPC_MOD_G_2E:
     case OPC_MOD_G_2F:
@@ -3966,7 +3756,6 @@  static void gen_loongson_integer(DisasContext *ctx, uint32_t opc,
             tcg_gen_ext32s_tl(cpu_gpr[rd], cpu_gpr[rd]);
             gen_set_label(l3);
         }
-        opn = "mod.g";
         break;
     case OPC_MODU_G_2E:
     case OPC_MODU_G_2F:
@@ -3983,18 +3772,15 @@  static void gen_loongson_integer(DisasContext *ctx, uint32_t opc,
             tcg_gen_ext32s_tl(cpu_gpr[rd], cpu_gpr[rd]);
             gen_set_label(l2);
         }
-        opn = "modu.g";
         break;
 #if defined(TARGET_MIPS64)
     case OPC_DMULT_G_2E:
     case OPC_DMULT_G_2F:
         tcg_gen_mul_tl(cpu_gpr[rd], t0, t1);
-        opn = "dmult.g";
         break;
     case OPC_DMULTU_G_2E:
     case OPC_DMULTU_G_2F:
         tcg_gen_mul_tl(cpu_gpr[rd], t0, t1);
-        opn = "dmultu.g";
         break;
     case OPC_DDIV_G_2E:
     case OPC_DDIV_G_2F:
@@ -4014,7 +3800,6 @@  static void gen_loongson_integer(DisasContext *ctx, uint32_t opc,
             tcg_gen_div_tl(cpu_gpr[rd], t0, t1);
             gen_set_label(l3);
         }
-        opn = "ddiv.g";
         break;
     case OPC_DDIVU_G_2E:
     case OPC_DDIVU_G_2F:
@@ -4028,7 +3813,6 @@  static void gen_loongson_integer(DisasContext *ctx, uint32_t opc,
             tcg_gen_divu_tl(cpu_gpr[rd], t0, t1);
             gen_set_label(l2);
         }
-        opn = "ddivu.g";
         break;
     case OPC_DMOD_G_2E:
     case OPC_DMOD_G_2F:
@@ -4046,7 +3830,6 @@  static void gen_loongson_integer(DisasContext *ctx, uint32_t opc,
             tcg_gen_rem_tl(cpu_gpr[rd], t0, t1);
             gen_set_label(l3);
         }
-        opn = "dmod.g";
         break;
     case OPC_DMODU_G_2E:
     case OPC_DMODU_G_2F:
@@ -4060,13 +3843,10 @@  static void gen_loongson_integer(DisasContext *ctx, uint32_t opc,
             tcg_gen_remu_tl(cpu_gpr[rd], t0, t1);
             gen_set_label(l2);
         }
-        opn = "dmodu.g";
         break;
 #endif
     }
 
-    (void)opn; /* avoid a compiler warning */
-    MIPS_DEBUG("%s %s, %s", opn, regnames[rd], regnames[rs]);
     tcg_temp_free(t0);
     tcg_temp_free(t1);
 }
@@ -4074,7 +3854,6 @@  static void gen_loongson_integer(DisasContext *ctx, uint32_t opc,
 /* Loongson multimedia instructions */
 static void gen_loongson_multimedia(DisasContext *ctx, int rd, int rs, int rt)
 {
-    const char *opn = "loongson_cp2";
     uint32_t opc, shift_max;
     TCGv_i64 t0, t1;
 
@@ -4097,11 +3876,11 @@  static void gen_loongson_multimedia(DisasContext *ctx, int rd, int rs, int rt)
     gen_load_fpr64(ctx, t1, rt);
 
 #define LMI_HELPER(UP, LO) \
-    case OPC_##UP: gen_helper_##LO(t0, t0, t1); opn = #LO; break
+    case OPC_##UP: gen_helper_##LO(t0, t0, t1); break
 #define LMI_HELPER_1(UP, LO) \
-    case OPC_##UP: gen_helper_##LO(t0, t0); opn = #LO; break
+    case OPC_##UP: gen_helper_##LO(t0, t0); break
 #define LMI_DIRECT(UP, LO, OP) \
-    case OPC_##UP: tcg_gen_##OP##_i64(t0, t0, t1); opn = #LO; break
+    case OPC_##UP: tcg_gen_##OP##_i64(t0, t0, t1); break
 
     switch (opc) {
     LMI_HELPER(PADDSH, paddsh);
@@ -4172,19 +3951,15 @@  static void gen_loongson_multimedia(DisasContext *ctx, int rd, int rs, int rt)
 
     case OPC_PINSRH_0:
         tcg_gen_deposit_i64(t0, t0, t1, 0, 16);
-        opn = "pinsrh_0";
         break;
     case OPC_PINSRH_1:
         tcg_gen_deposit_i64(t0, t0, t1, 16, 16);
-        opn = "pinsrh_1";
         break;
     case OPC_PINSRH_2:
         tcg_gen_deposit_i64(t0, t0, t1, 32, 16);
-        opn = "pinsrh_2";
         break;
     case OPC_PINSRH_3:
         tcg_gen_deposit_i64(t0, t0, t1, 48, 16);
-        opn = "pinsrh_3";
         break;
 
     case OPC_PEXTRH:
@@ -4192,42 +3967,33 @@  static void gen_loongson_multimedia(DisasContext *ctx, int rd, int rs, int rt)
         tcg_gen_shli_i64(t1, t1, 4);
         tcg_gen_shr_i64(t0, t0, t1);
         tcg_gen_ext16u_i64(t0, t0);
-        opn = "pextrh";
         break;
 
     case OPC_ADDU_CP2:
         tcg_gen_add_i64(t0, t0, t1);
         tcg_gen_ext32s_i64(t0, t0);
-        opn = "addu";
         break;
     case OPC_SUBU_CP2:
         tcg_gen_sub_i64(t0, t0, t1);
         tcg_gen_ext32s_i64(t0, t0);
-        opn = "addu";
         break;
 
     case OPC_SLL_CP2:
-        opn = "sll";
         shift_max = 32;
         goto do_shift;
     case OPC_SRL_CP2:
-        opn = "srl";
         shift_max = 32;
         goto do_shift;
     case OPC_SRA_CP2:
-        opn = "sra";
         shift_max = 32;
         goto do_shift;
     case OPC_DSLL_CP2:
-        opn = "dsll";
         shift_max = 64;
         goto do_shift;
     case OPC_DSRL_CP2:
-        opn = "dsrl";
         shift_max = 64;
         goto do_shift;
     case OPC_DSRA_CP2:
-        opn = "dsra";
         shift_max = 64;
         goto do_shift;
     do_shift:
@@ -4282,8 +4048,6 @@  static void gen_loongson_multimedia(DisasContext *ctx, int rd, int rs, int rt)
             tcg_gen_brcondi_i64(TCG_COND_GE, t1, 0, lab);
             generate_exception(ctx, EXCP_OVERFLOW);
             gen_set_label(lab);
-
-            opn = (opc == OPC_ADD_CP2 ? "add" : "dadd");
             break;
         }
 
@@ -4305,8 +4069,6 @@  static void gen_loongson_multimedia(DisasContext *ctx, int rd, int rs, int rt)
             tcg_gen_brcondi_i64(TCG_COND_GE, t1, 0, lab);
             generate_exception(ctx, EXCP_OVERFLOW);
             gen_set_label(lab);
-
-            opn = (opc == OPC_SUB_CP2 ? "sub" : "dsub");
             break;
         }
 
@@ -4314,7 +4076,6 @@  static void gen_loongson_multimedia(DisasContext *ctx, int rd, int rs, int rt)
         tcg_gen_ext32u_i64(t0, t0);
         tcg_gen_ext32u_i64(t1, t1);
         tcg_gen_mul_i64(t0, t0, t1);
-        opn = "pmuluw";
         break;
 
     case OPC_SEQU_CP2:
@@ -4326,7 +4087,7 @@  static void gen_loongson_multimedia(DisasContext *ctx, int rd, int rs, int rt)
         /* ??? Document is unclear: Set FCC[CC].  Does that mean the
            FD field is the CC field?  */
     default:
-        MIPS_INVAL(opn);
+        MIPS_INVAL("loongson_cp2");
         generate_exception(ctx, EXCP_RI);
         return;
     }
@@ -4336,9 +4097,6 @@  static void gen_loongson_multimedia(DisasContext *ctx, int rd, int rs, int rt)
 
     gen_store_fpr64(ctx, t0, rd);
 
-    (void)opn; /* avoid a compiler warning */
-    MIPS_DEBUG("%s %s, %s, %s", opn,
-               fregnames[rd], fregnames[rs], fregnames[rt]);
     tcg_temp_free_i64(t0);
     tcg_temp_free_i64(t1);
 }
@@ -4554,20 +4312,17 @@  static void gen_compute_branch (DisasContext *ctx, uint32_t opc,
         case OPC_BLEZL:   /* 0 <= 0 likely   */
             /* Always take */
             ctx->hflags |= MIPS_HFLAG_B;
-            MIPS_DEBUG("balways");
             break;
         case OPC_BGEZAL:  /* 0 >= 0          */
         case OPC_BGEZALL: /* 0 >= 0 likely   */
             /* Always take and link */
             blink = 31;
             ctx->hflags |= MIPS_HFLAG_B;
-            MIPS_DEBUG("balways and link");
             break;
         case OPC_BNE:     /* rx != rx        */
         case OPC_BGTZ:    /* 0 > 0           */
         case OPC_BLTZ:    /* 0 < 0           */
             /* Treat as NOP. */
-            MIPS_DEBUG("bnever (NOP)");
             goto out;
         case OPC_BLTZAL:  /* 0 < 0           */
             /* Handle as an unconditional branch to get correct delay
@@ -4575,24 +4330,20 @@  static void gen_compute_branch (DisasContext *ctx, uint32_t opc,
             blink = 31;
             btgt = ctx->pc + insn_bytes + delayslot_size;
             ctx->hflags |= MIPS_HFLAG_B;
-            MIPS_DEBUG("bnever and link");
             break;
         case OPC_BLTZALL: /* 0 < 0 likely */
             tcg_gen_movi_tl(cpu_gpr[31], ctx->pc + 8);
             /* Skip the instruction in the delay slot */
-            MIPS_DEBUG("bnever, link and skip");
             ctx->pc += 4;
             goto out;
         case OPC_BNEL:    /* rx != rx likely */
         case OPC_BGTZL:   /* 0 > 0 likely */
         case OPC_BLTZL:   /* 0 < 0 likely */
             /* Skip the instruction in the delay slot */
-            MIPS_DEBUG("bnever and skip");
             ctx->pc += 4;
             goto out;
         case OPC_J:
             ctx->hflags |= MIPS_HFLAG_B;
-            MIPS_DEBUG("j " TARGET_FMT_lx, btgt);
             break;
         case OPC_JALX:
             ctx->hflags |= MIPS_HFLAG_BX;
@@ -4600,16 +4351,13 @@  static void gen_compute_branch (DisasContext *ctx, uint32_t opc,
         case OPC_JAL:
             blink = 31;
             ctx->hflags |= MIPS_HFLAG_B;
-            MIPS_DEBUG("jal " TARGET_FMT_lx, btgt);
             break;
         case OPC_JR:
             ctx->hflags |= MIPS_HFLAG_BR;
-            MIPS_DEBUG("jr %s", regnames[rs]);
             break;
         case OPC_JALR:
             blink = rt;
             ctx->hflags |= MIPS_HFLAG_BR;
-            MIPS_DEBUG("jalr %s, %s", regnames[rt], regnames[rs]);
             break;
         default:
             MIPS_INVAL("branch/jump");
@@ -4620,87 +4368,65 @@  static void gen_compute_branch (DisasContext *ctx, uint32_t opc,
         switch (opc) {
         case OPC_BEQ:
             tcg_gen_setcond_tl(TCG_COND_EQ, bcond, t0, t1);
-            MIPS_DEBUG("beq %s, %s, " TARGET_FMT_lx,
-                       regnames[rs], regnames[rt], btgt);
             goto not_likely;
         case OPC_BEQL:
             tcg_gen_setcond_tl(TCG_COND_EQ, bcond, t0, t1);
-            MIPS_DEBUG("beql %s, %s, " TARGET_FMT_lx,
-                       regnames[rs], regnames[rt], btgt);
             goto likely;
         case OPC_BNE:
             tcg_gen_setcond_tl(TCG_COND_NE, bcond, t0, t1);
-            MIPS_DEBUG("bne %s, %s, " TARGET_FMT_lx,
-                       regnames[rs], regnames[rt], btgt);
             goto not_likely;
         case OPC_BNEL:
             tcg_gen_setcond_tl(TCG_COND_NE, bcond, t0, t1);
-            MIPS_DEBUG("bnel %s, %s, " TARGET_FMT_lx,
-                       regnames[rs], regnames[rt], btgt);
             goto likely;
         case OPC_BGEZ:
             tcg_gen_setcondi_tl(TCG_COND_GE, bcond, t0, 0);
-            MIPS_DEBUG("bgez %s, " TARGET_FMT_lx, regnames[rs], btgt);
             goto not_likely;
         case OPC_BGEZL:
             tcg_gen_setcondi_tl(TCG_COND_GE, bcond, t0, 0);
-            MIPS_DEBUG("bgezl %s, " TARGET_FMT_lx, regnames[rs], btgt);
             goto likely;
         case OPC_BGEZAL:
             tcg_gen_setcondi_tl(TCG_COND_GE, bcond, t0, 0);
-            MIPS_DEBUG("bgezal %s, " TARGET_FMT_lx, regnames[rs], btgt);
             blink = 31;
             goto not_likely;
         case OPC_BGEZALL:
             tcg_gen_setcondi_tl(TCG_COND_GE, bcond, t0, 0);
             blink = 31;
-            MIPS_DEBUG("bgezall %s, " TARGET_FMT_lx, regnames[rs], btgt);
             goto likely;
         case OPC_BGTZ:
             tcg_gen_setcondi_tl(TCG_COND_GT, bcond, t0, 0);
-            MIPS_DEBUG("bgtz %s, " TARGET_FMT_lx, regnames[rs], btgt);
             goto not_likely;
         case OPC_BGTZL:
             tcg_gen_setcondi_tl(TCG_COND_GT, bcond, t0, 0);
-            MIPS_DEBUG("bgtzl %s, " TARGET_FMT_lx, regnames[rs], btgt);
             goto likely;
         case OPC_BLEZ:
             tcg_gen_setcondi_tl(TCG_COND_LE, bcond, t0, 0);
-            MIPS_DEBUG("blez %s, " TARGET_FMT_lx, regnames[rs], btgt);
             goto not_likely;
         case OPC_BLEZL:
             tcg_gen_setcondi_tl(TCG_COND_LE, bcond, t0, 0);
-            MIPS_DEBUG("blezl %s, " TARGET_FMT_lx, regnames[rs], btgt);
             goto likely;
         case OPC_BLTZ:
             tcg_gen_setcondi_tl(TCG_COND_LT, bcond, t0, 0);
-            MIPS_DEBUG("bltz %s, " TARGET_FMT_lx, regnames[rs], btgt);
             goto not_likely;
         case OPC_BLTZL:
             tcg_gen_setcondi_tl(TCG_COND_LT, bcond, t0, 0);
-            MIPS_DEBUG("bltzl %s, " TARGET_FMT_lx, regnames[rs], btgt);
             goto likely;
         case OPC_BPOSGE32:
             tcg_gen_setcondi_tl(TCG_COND_GE, bcond, t0, 32);
-            MIPS_DEBUG("bposge32 " TARGET_FMT_lx, btgt);
             goto not_likely;
 #if defined(TARGET_MIPS64)
         case OPC_BPOSGE64:
             tcg_gen_setcondi_tl(TCG_COND_GE, bcond, t0, 64);
-            MIPS_DEBUG("bposge64 " TARGET_FMT_lx, btgt);
             goto not_likely;
 #endif
         case OPC_BLTZAL:
             tcg_gen_setcondi_tl(TCG_COND_LT, bcond, t0, 0);
             blink = 31;
-            MIPS_DEBUG("bltzal %s, " TARGET_FMT_lx, regnames[rs], btgt);
         not_likely:
             ctx->hflags |= MIPS_HFLAG_BC;
             break;
         case OPC_BLTZALL:
             tcg_gen_setcondi_tl(TCG_COND_LT, bcond, t0, 0);
             blink = 31;
-            MIPS_DEBUG("bltzall %s, " TARGET_FMT_lx, regnames[rs], btgt);
         likely:
             ctx->hflags |= MIPS_HFLAG_BL;
             break;
@@ -4710,8 +4436,6 @@  static void gen_compute_branch (DisasContext *ctx, uint32_t opc,
             goto out;
         }
     }
-    MIPS_DEBUG("enter ds: link %d cond %02x target " TARGET_FMT_lx,
-               blink, ctx->hflags, btgt);
 
     ctx->btarget = btgt;
 
@@ -4818,7 +4542,6 @@  static void gen_bshfl (DisasContext *ctx, uint32_t op2, int rt, int rd)
 
     if (rd == 0) {
         /* If no destination, treat it as a NOP. */
-        MIPS_DEBUG("NOP");
         return;
     }
 
@@ -8276,7 +7999,6 @@  static void gen_cp0 (CPUMIPSState *env, DisasContext *ctx, uint32_t opc, int rt,
     case OPC_ERET: /* OPC_ERETNC */
         if ((ctx->insn_flags & ISA_MIPS32R6) &&
             (ctx->hflags & MIPS_HFLAG_BMASK)) {
-            MIPS_DEBUG("CTI in delay / forbidden slot");
             goto die;
         } else {
             int bit_shift = (ctx->hflags & MIPS_HFLAG_M16) ? 16 : 6;
@@ -8299,7 +8021,6 @@  static void gen_cp0 (CPUMIPSState *env, DisasContext *ctx, uint32_t opc, int rt,
         check_insn(ctx, ISA_MIPS32);
         if ((ctx->insn_flags & ISA_MIPS32R6) &&
             (ctx->hflags & MIPS_HFLAG_BMASK)) {
-            MIPS_DEBUG("CTI in delay / forbidden slot");
             goto die;
         }
         if (!(ctx->hflags & MIPS_HFLAG_DM)) {
@@ -8315,7 +8036,6 @@  static void gen_cp0 (CPUMIPSState *env, DisasContext *ctx, uint32_t opc, int rt,
         check_insn(ctx, ISA_MIPS3 | ISA_MIPS32);
         if ((ctx->insn_flags & ISA_MIPS32R6) &&
             (ctx->hflags & MIPS_HFLAG_BMASK)) {
-            MIPS_DEBUG("CTI in delay / forbidden slot");
             goto die;
         }
         /* If we get an exception, we want to restart at next instruction */
@@ -8332,7 +8052,6 @@  static void gen_cp0 (CPUMIPSState *env, DisasContext *ctx, uint32_t opc, int rt,
         return;
     }
     (void)opn; /* avoid a compiler warning */
-    MIPS_DEBUG("%s %s %d", opn, regnames[rt], rd);
 }
 #endif /* !CONFIG_USER_ONLY */
 
@@ -8341,11 +8060,9 @@  static void gen_compute_branch1(DisasContext *ctx, uint32_t op,
                                 int32_t cc, int32_t offset)
 {
     target_ulong btarget;
-    const char *opn = "cp1 cond branch";
     TCGv_i32 t0 = tcg_temp_new_i32();
 
     if ((ctx->insn_flags & ISA_MIPS32R6) && (ctx->hflags & MIPS_HFLAG_BMASK)) {
-        MIPS_DEBUG("CTI in delay / forbidden slot");
         generate_exception(ctx, EXCP_RI);
         goto out;
     }
@@ -8361,26 +8078,22 @@  static void gen_compute_branch1(DisasContext *ctx, uint32_t op,
         tcg_gen_not_i32(t0, t0);
         tcg_gen_andi_i32(t0, t0, 1);
         tcg_gen_extu_i32_tl(bcond, t0);
-        opn = "bc1f";
         goto not_likely;
     case OPC_BC1FL:
         tcg_gen_shri_i32(t0, fpu_fcr31, get_fp_bit(cc));
         tcg_gen_not_i32(t0, t0);
         tcg_gen_andi_i32(t0, t0, 1);
         tcg_gen_extu_i32_tl(bcond, t0);
-        opn = "bc1fl";
         goto likely;
     case OPC_BC1T:
         tcg_gen_shri_i32(t0, fpu_fcr31, get_fp_bit(cc));
         tcg_gen_andi_i32(t0, t0, 1);
         tcg_gen_extu_i32_tl(bcond, t0);
-        opn = "bc1t";
         goto not_likely;
     case OPC_BC1TL:
         tcg_gen_shri_i32(t0, fpu_fcr31, get_fp_bit(cc));
         tcg_gen_andi_i32(t0, t0, 1);
         tcg_gen_extu_i32_tl(bcond, t0);
-        opn = "bc1tl";
     likely:
         ctx->hflags |= MIPS_HFLAG_BL;
         break;
@@ -8394,7 +8107,6 @@  static void gen_compute_branch1(DisasContext *ctx, uint32_t op,
             tcg_gen_andi_i32(t0, t0, 1);
             tcg_gen_extu_i32_tl(bcond, t0);
         }
-        opn = "bc1any2f";
         goto not_likely;
     case OPC_BC1TANY2:
         {
@@ -8406,7 +8118,6 @@  static void gen_compute_branch1(DisasContext *ctx, uint32_t op,
             tcg_gen_andi_i32(t0, t0, 1);
             tcg_gen_extu_i32_tl(bcond, t0);
         }
-        opn = "bc1any2t";
         goto not_likely;
     case OPC_BC1FANY4:
         {
@@ -8422,7 +8133,6 @@  static void gen_compute_branch1(DisasContext *ctx, uint32_t op,
             tcg_gen_andi_i32(t0, t0, 1);
             tcg_gen_extu_i32_tl(bcond, t0);
         }
-        opn = "bc1any4f";
         goto not_likely;
     case OPC_BC1TANY4:
         {
@@ -8438,18 +8148,14 @@  static void gen_compute_branch1(DisasContext *ctx, uint32_t op,
             tcg_gen_andi_i32(t0, t0, 1);
             tcg_gen_extu_i32_tl(bcond, t0);
         }
-        opn = "bc1any4t";
     not_likely:
         ctx->hflags |= MIPS_HFLAG_BC;
         break;
     default:
-        MIPS_INVAL(opn);
+        MIPS_INVAL("cp1 cond branch");
         generate_exception (ctx, EXCP_RI);
         goto out;
     }
-    (void)opn; /* avoid a compiler warning */
-    MIPS_DEBUG("%s: cond %02x target " TARGET_FMT_lx, opn,
-               ctx->hflags, btarget);
     ctx->btarget = btarget;
     ctx->hflags |= MIPS_HFLAG_BDS32;
  out:
@@ -8462,7 +8168,6 @@  static void gen_compute_branch1_r6(DisasContext *ctx, uint32_t op,
                                    int delayslot_size)
 {
     target_ulong btarget;
-    const char *opn = "cp1 cond branch";
     TCGv_i64 t0 = tcg_temp_new_i64();
 
     if (ctx->hflags & MIPS_HFLAG_BMASK) {
@@ -8482,25 +8187,20 @@  static void gen_compute_branch1_r6(DisasContext *ctx, uint32_t op,
     switch (op) {
     case OPC_BC1EQZ:
         tcg_gen_xori_i64(t0, t0, 1);
-        opn = "bc1eqz";
         ctx->hflags |= MIPS_HFLAG_BC;
         break;
     case OPC_BC1NEZ:
         /* t0 already set */
-        opn = "bc1nez";
         ctx->hflags |= MIPS_HFLAG_BC;
         break;
     default:
-        MIPS_INVAL(opn);
+        MIPS_INVAL("cp1 cond branch");
         generate_exception(ctx, EXCP_RI);
         goto out;
     }
 
     tcg_gen_trunc_i64_tl(bcond, t0);
 
-    (void)opn; /* avoid a compiler warning */
-    MIPS_DEBUG("%s: cond %02x target " TARGET_FMT_lx, opn,
-               ctx->hflags, btarget);
     ctx->btarget = btarget;
 
     switch (delayslot_size) {
@@ -8731,7 +8431,6 @@  enum r6_f_cmp_op {
 };
 static void gen_cp1 (DisasContext *ctx, uint32_t opc, int rt, int fs)
 {
-    const char *opn = "cp1 move";
     TCGv t0 = tcg_temp_new();
 
     switch (opc) {
@@ -8744,7 +8443,6 @@  static void gen_cp1 (DisasContext *ctx, uint32_t opc, int rt, int fs)
             tcg_temp_free_i32(fp0);
         }
         gen_store_gpr(t0, rt);
-        opn = "mfc1";
         break;
     case OPC_MTC1:
         gen_load_gpr(t0, rt);
@@ -8755,12 +8453,10 @@  static void gen_cp1 (DisasContext *ctx, uint32_t opc, int rt, int fs)
             gen_store_fpr32(ctx, fp0, fs);
             tcg_temp_free_i32(fp0);
         }
-        opn = "mtc1";
         break;
     case OPC_CFC1:
         gen_helper_1e0i(cfc1, t0, fs);
         gen_store_gpr(t0, rt);
-        opn = "cfc1";
         break;
     case OPC_CTC1:
         gen_load_gpr(t0, rt);
@@ -8773,18 +8469,15 @@  static void gen_cp1 (DisasContext *ctx, uint32_t opc, int rt, int fs)
         }
         /* Stop translation as we may have changed hflags */
         ctx->bstate = BS_STOP;
-        opn = "ctc1";
         break;
 #if defined(TARGET_MIPS64)
     case OPC_DMFC1:
         gen_load_fpr64(ctx, t0, fs);
         gen_store_gpr(t0, rt);
-        opn = "dmfc1";
         break;
     case OPC_DMTC1:
         gen_load_gpr(t0, rt);
         gen_store_fpr64(ctx, t0, fs);
-        opn = "dmtc1";
         break;
 #endif
     case OPC_MFHC1:
@@ -8796,7 +8489,6 @@  static void gen_cp1 (DisasContext *ctx, uint32_t opc, int rt, int fs)
             tcg_temp_free_i32(fp0);
         }
         gen_store_gpr(t0, rt);
-        opn = "mfhc1";
         break;
     case OPC_MTHC1:
         gen_load_gpr(t0, rt);
@@ -8807,15 +8499,12 @@  static void gen_cp1 (DisasContext *ctx, uint32_t opc, int rt, int fs)
             gen_store_fpr32h(ctx, fp0, fs);
             tcg_temp_free_i32(fp0);
         }
-        opn = "mthc1";
         break;
     default:
-        MIPS_INVAL(opn);
+        MIPS_INVAL("cp1 move");
         generate_exception (ctx, EXCP_RI);
         goto out;
     }
-    (void)opn; /* avoid a compiler warning */
-    MIPS_DEBUG("%s %s %s", opn, regnames[rt], fregnames[fs]);
 
  out:
     tcg_temp_free(t0);
@@ -8996,44 +8685,6 @@  static void gen_sel_d(DisasContext *ctx, enum fopcode op1, int fd, int ft,
 static void gen_farith (DisasContext *ctx, enum fopcode op1,
                         int ft, int fs, int fd, int cc)
 {
-    const char *opn = "farith";
-    const char *condnames[] = {
-            "c.f",
-            "c.un",
-            "c.eq",
-            "c.ueq",
-            "c.olt",
-            "c.ult",
-            "c.ole",
-            "c.ule",
-            "c.sf",
-            "c.ngle",
-            "c.seq",
-            "c.ngl",
-            "c.lt",
-            "c.nge",
-            "c.le",
-            "c.ngt",
-    };
-    const char *condnames_abs[] = {
-            "cabs.f",
-            "cabs.un",
-            "cabs.eq",
-            "cabs.ueq",
-            "cabs.olt",
-            "cabs.ult",
-            "cabs.ole",
-            "cabs.ule",
-            "cabs.sf",
-            "cabs.ngle",
-            "cabs.seq",
-            "cabs.ngl",
-            "cabs.lt",
-            "cabs.nge",
-            "cabs.le",
-            "cabs.ngt",
-    };
-    enum { BINOP, CMPOP, OTHEROP } optype = OTHEROP;
     uint32_t func = ctx->opcode & 0x3f;
     switch (op1) {
     case OPC_ADD_S:
@@ -9048,8 +8699,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr32(ctx, fp0, fd);
             tcg_temp_free_i32(fp0);
         }
-        opn = "add.s";
-        optype = BINOP;
         break;
     case OPC_SUB_S:
         {
@@ -9063,8 +8712,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr32(ctx, fp0, fd);
             tcg_temp_free_i32(fp0);
         }
-        opn = "sub.s";
-        optype = BINOP;
         break;
     case OPC_MUL_S:
         {
@@ -9078,8 +8725,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr32(ctx, fp0, fd);
             tcg_temp_free_i32(fp0);
         }
-        opn = "mul.s";
-        optype = BINOP;
         break;
     case OPC_DIV_S:
         {
@@ -9093,8 +8738,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr32(ctx, fp0, fd);
             tcg_temp_free_i32(fp0);
         }
-        opn = "div.s";
-        optype = BINOP;
         break;
     case OPC_SQRT_S:
         {
@@ -9105,7 +8748,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr32(ctx, fp0, fd);
             tcg_temp_free_i32(fp0);
         }
-        opn = "sqrt.s";
         break;
     case OPC_ABS_S:
         {
@@ -9116,7 +8758,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr32(ctx, fp0, fd);
             tcg_temp_free_i32(fp0);
         }
-        opn = "abs.s";
         break;
     case OPC_MOV_S:
         {
@@ -9126,7 +8767,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr32(ctx, fp0, fd);
             tcg_temp_free_i32(fp0);
         }
-        opn = "mov.s";
         break;
     case OPC_NEG_S:
         {
@@ -9137,7 +8777,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr32(ctx, fp0, fd);
             tcg_temp_free_i32(fp0);
         }
-        opn = "neg.s";
         break;
     case OPC_ROUND_L_S:
         check_cp1_64bitmode(ctx);
@@ -9151,7 +8790,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp64, fd);
             tcg_temp_free_i64(fp64);
         }
-        opn = "round.l.s";
         break;
     case OPC_TRUNC_L_S:
         check_cp1_64bitmode(ctx);
@@ -9165,7 +8803,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp64, fd);
             tcg_temp_free_i64(fp64);
         }
-        opn = "trunc.l.s";
         break;
     case OPC_CEIL_L_S:
         check_cp1_64bitmode(ctx);
@@ -9179,7 +8816,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp64, fd);
             tcg_temp_free_i64(fp64);
         }
-        opn = "ceil.l.s";
         break;
     case OPC_FLOOR_L_S:
         check_cp1_64bitmode(ctx);
@@ -9193,7 +8829,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp64, fd);
             tcg_temp_free_i64(fp64);
         }
-        opn = "floor.l.s";
         break;
     case OPC_ROUND_W_S:
         {
@@ -9204,7 +8839,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr32(ctx, fp0, fd);
             tcg_temp_free_i32(fp0);
         }
-        opn = "round.w.s";
         break;
     case OPC_TRUNC_W_S:
         {
@@ -9215,7 +8849,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr32(ctx, fp0, fd);
             tcg_temp_free_i32(fp0);
         }
-        opn = "trunc.w.s";
         break;
     case OPC_CEIL_W_S:
         {
@@ -9226,7 +8859,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr32(ctx, fp0, fd);
             tcg_temp_free_i32(fp0);
         }
-        opn = "ceil.w.s";
         break;
     case OPC_FLOOR_W_S:
         {
@@ -9237,27 +8869,22 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr32(ctx, fp0, fd);
             tcg_temp_free_i32(fp0);
         }
-        opn = "floor.w.s";
         break;
     case OPC_SEL_S:
         check_insn(ctx, ISA_MIPS32R6);
         gen_sel_s(ctx, op1, fd, ft, fs);
-        opn = "sel.s";
         break;
     case OPC_SELEQZ_S:
         check_insn(ctx, ISA_MIPS32R6);
         gen_sel_s(ctx, op1, fd, ft, fs);
-        opn = "seleqz.s";
         break;
     case OPC_SELNEZ_S:
         check_insn(ctx, ISA_MIPS32R6);
         gen_sel_s(ctx, op1, fd, ft, fs);
-        opn = "selnez.s";
         break;
     case OPC_MOVCF_S:
         check_insn_opc_removed(ctx, ISA_MIPS32R6);
         gen_movcf_s(ctx, fs, fd, (ft >> 2) & 0x7, ft & 0x1);
-        opn = "movcf.s";
         break;
     case OPC_MOVZ_S:
         check_insn_opc_removed(ctx, ISA_MIPS32R6);
@@ -9274,7 +8901,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             tcg_temp_free_i32(fp0);
             gen_set_label(l1);
         }
-        opn = "movz.s";
         break;
     case OPC_MOVN_S:
         check_insn_opc_removed(ctx, ISA_MIPS32R6);
@@ -9291,7 +8917,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
                 gen_set_label(l1);
             }
         }
-        opn = "movn.s";
         break;
     case OPC_RECIP_S:
         check_cop1x(ctx);
@@ -9303,7 +8928,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr32(ctx, fp0, fd);
             tcg_temp_free_i32(fp0);
         }
-        opn = "recip.s";
         break;
     case OPC_RSQRT_S:
         check_cop1x(ctx);
@@ -9315,7 +8939,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr32(ctx, fp0, fd);
             tcg_temp_free_i32(fp0);
         }
-        opn = "rsqrt.s";
         break;
     case OPC_MADDF_S:
         check_insn(ctx, ISA_MIPS32R6);
@@ -9331,7 +8954,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             tcg_temp_free_i32(fp2);
             tcg_temp_free_i32(fp1);
             tcg_temp_free_i32(fp0);
-            opn = "maddf.s";
         }
         break;
     case OPC_MSUBF_S:
@@ -9348,7 +8970,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             tcg_temp_free_i32(fp2);
             tcg_temp_free_i32(fp1);
             tcg_temp_free_i32(fp0);
-            opn = "msubf.s";
         }
         break;
     case OPC_RINT_S:
@@ -9359,7 +8980,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_helper_float_rint_s(fp0, cpu_env, fp0);
             gen_store_fpr32(ctx, fp0, fd);
             tcg_temp_free_i32(fp0);
-            opn = "rint.s";
         }
         break;
     case OPC_CLASS_S:
@@ -9370,7 +8990,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_helper_float_class_s(fp0, fp0);
             gen_store_fpr32(ctx, fp0, fd);
             tcg_temp_free_i32(fp0);
-            opn = "class.s";
         }
         break;
     case OPC_MIN_S: /* OPC_RECIP2_S */
@@ -9386,7 +9005,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             tcg_temp_free_i32(fp2);
             tcg_temp_free_i32(fp1);
             tcg_temp_free_i32(fp0);
-            opn = "min.s";
         } else {
             /* OPC_RECIP2_S */
             check_cp1_64bitmode(ctx);
@@ -9401,7 +9019,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
                 gen_store_fpr32(ctx, fp0, fd);
                 tcg_temp_free_i32(fp0);
             }
-            opn = "recip2.s";
         }
         break;
     case OPC_MINA_S: /* OPC_RECIP1_S */
@@ -9417,7 +9034,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             tcg_temp_free_i32(fp2);
             tcg_temp_free_i32(fp1);
             tcg_temp_free_i32(fp0);
-            opn = "mina.s";
         } else {
             /* OPC_RECIP1_S */
             check_cp1_64bitmode(ctx);
@@ -9429,7 +9045,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
                 gen_store_fpr32(ctx, fp0, fd);
                 tcg_temp_free_i32(fp0);
             }
-            opn = "recip1.s";
         }
         break;
     case OPC_MAX_S: /* OPC_RSQRT1_S */
@@ -9443,7 +9058,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr32(ctx, fp1, fd);
             tcg_temp_free_i32(fp1);
             tcg_temp_free_i32(fp0);
-            opn = "max.s";
         } else {
             /* OPC_RSQRT1_S */
             check_cp1_64bitmode(ctx);
@@ -9455,7 +9069,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
                 gen_store_fpr32(ctx, fp0, fd);
                 tcg_temp_free_i32(fp0);
             }
-            opn = "rsqrt1.s";
         }
         break;
     case OPC_MAXA_S: /* OPC_RSQRT2_S */
@@ -9469,7 +9082,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr32(ctx, fp1, fd);
             tcg_temp_free_i32(fp1);
             tcg_temp_free_i32(fp0);
-            opn = "maxa.s";
         } else {
             /* OPC_RSQRT2_S */
             check_cp1_64bitmode(ctx);
@@ -9484,7 +9096,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
                 gen_store_fpr32(ctx, fp0, fd);
                 tcg_temp_free_i32(fp0);
             }
-            opn = "rsqrt2.s";
         }
         break;
     case OPC_CVT_D_S:
@@ -9499,7 +9110,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp64, fd);
             tcg_temp_free_i64(fp64);
         }
-        opn = "cvt.d.s";
         break;
     case OPC_CVT_W_S:
         {
@@ -9510,7 +9120,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr32(ctx, fp0, fd);
             tcg_temp_free_i32(fp0);
         }
-        opn = "cvt.w.s";
         break;
     case OPC_CVT_L_S:
         check_cp1_64bitmode(ctx);
@@ -9524,7 +9133,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp64, fd);
             tcg_temp_free_i64(fp64);
         }
-        opn = "cvt.l.s";
         break;
     case OPC_CVT_PS_S:
         check_ps(ctx);
@@ -9541,7 +9149,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp64, fd);
             tcg_temp_free_i64(fp64);
         }
-        opn = "cvt.ps.s";
         break;
     case OPC_CMP_F_S:
     case OPC_CMP_UN_S:
@@ -9562,12 +9169,9 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
         check_insn_opc_removed(ctx, ISA_MIPS32R6);
         if (ctx->opcode & (1 << 6)) {
             gen_cmpabs_s(ctx, func-48, ft, fs, cc);
-            opn = condnames_abs[func-48];
         } else {
             gen_cmp_s(ctx, func-48, ft, fs, cc);
-            opn = condnames[func-48];
         }
-        optype = CMPOP;
         break;
     case OPC_ADD_D:
         check_cp1_registers(ctx, fs | ft | fd);
@@ -9582,8 +9186,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp0, fd);
             tcg_temp_free_i64(fp0);
         }
-        opn = "add.d";
-        optype = BINOP;
         break;
     case OPC_SUB_D:
         check_cp1_registers(ctx, fs | ft | fd);
@@ -9598,8 +9200,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp0, fd);
             tcg_temp_free_i64(fp0);
         }
-        opn = "sub.d";
-        optype = BINOP;
         break;
     case OPC_MUL_D:
         check_cp1_registers(ctx, fs | ft | fd);
@@ -9614,8 +9214,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp0, fd);
             tcg_temp_free_i64(fp0);
         }
-        opn = "mul.d";
-        optype = BINOP;
         break;
     case OPC_DIV_D:
         check_cp1_registers(ctx, fs | ft | fd);
@@ -9630,8 +9228,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp0, fd);
             tcg_temp_free_i64(fp0);
         }
-        opn = "div.d";
-        optype = BINOP;
         break;
     case OPC_SQRT_D:
         check_cp1_registers(ctx, fs | fd);
@@ -9643,7 +9239,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp0, fd);
             tcg_temp_free_i64(fp0);
         }
-        opn = "sqrt.d";
         break;
     case OPC_ABS_D:
         check_cp1_registers(ctx, fs | fd);
@@ -9655,7 +9250,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp0, fd);
             tcg_temp_free_i64(fp0);
         }
-        opn = "abs.d";
         break;
     case OPC_MOV_D:
         check_cp1_registers(ctx, fs | fd);
@@ -9666,7 +9260,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp0, fd);
             tcg_temp_free_i64(fp0);
         }
-        opn = "mov.d";
         break;
     case OPC_NEG_D:
         check_cp1_registers(ctx, fs | fd);
@@ -9678,7 +9271,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp0, fd);
             tcg_temp_free_i64(fp0);
         }
-        opn = "neg.d";
         break;
     case OPC_ROUND_L_D:
         check_cp1_64bitmode(ctx);
@@ -9690,7 +9282,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp0, fd);
             tcg_temp_free_i64(fp0);
         }
-        opn = "round.l.d";
         break;
     case OPC_TRUNC_L_D:
         check_cp1_64bitmode(ctx);
@@ -9702,7 +9293,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp0, fd);
             tcg_temp_free_i64(fp0);
         }
-        opn = "trunc.l.d";
         break;
     case OPC_CEIL_L_D:
         check_cp1_64bitmode(ctx);
@@ -9714,7 +9304,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp0, fd);
             tcg_temp_free_i64(fp0);
         }
-        opn = "ceil.l.d";
         break;
     case OPC_FLOOR_L_D:
         check_cp1_64bitmode(ctx);
@@ -9726,7 +9315,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp0, fd);
             tcg_temp_free_i64(fp0);
         }
-        opn = "floor.l.d";
         break;
     case OPC_ROUND_W_D:
         check_cp1_registers(ctx, fs);
@@ -9740,7 +9328,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr32(ctx, fp32, fd);
             tcg_temp_free_i32(fp32);
         }
-        opn = "round.w.d";
         break;
     case OPC_TRUNC_W_D:
         check_cp1_registers(ctx, fs);
@@ -9754,7 +9341,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr32(ctx, fp32, fd);
             tcg_temp_free_i32(fp32);
         }
-        opn = "trunc.w.d";
         break;
     case OPC_CEIL_W_D:
         check_cp1_registers(ctx, fs);
@@ -9768,7 +9354,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr32(ctx, fp32, fd);
             tcg_temp_free_i32(fp32);
         }
-        opn = "ceil.w.d";
         break;
     case OPC_FLOOR_W_D:
         check_cp1_registers(ctx, fs);
@@ -9782,27 +9367,22 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr32(ctx, fp32, fd);
             tcg_temp_free_i32(fp32);
         }
-        opn = "floor.w.d";
         break;
     case OPC_SEL_D:
         check_insn(ctx, ISA_MIPS32R6);
         gen_sel_d(ctx, op1, fd, ft, fs);
-        opn = "sel.d";
         break;
     case OPC_SELEQZ_D:
         check_insn(ctx, ISA_MIPS32R6);
         gen_sel_d(ctx, op1, fd, ft, fs);
-        opn = "seleqz.d";
         break;
     case OPC_SELNEZ_D:
         check_insn(ctx, ISA_MIPS32R6);
         gen_sel_d(ctx, op1, fd, ft, fs);
-        opn = "selnez.d";
         break;
     case OPC_MOVCF_D:
         check_insn_opc_removed(ctx, ISA_MIPS32R6);
         gen_movcf_d(ctx, fs, fd, (ft >> 2) & 0x7, ft & 0x1);
-        opn = "movcf.d";
         break;
     case OPC_MOVZ_D:
         check_insn_opc_removed(ctx, ISA_MIPS32R6);
@@ -9819,7 +9399,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             tcg_temp_free_i64(fp0);
             gen_set_label(l1);
         }
-        opn = "movz.d";
         break;
     case OPC_MOVN_D:
         check_insn_opc_removed(ctx, ISA_MIPS32R6);
@@ -9836,7 +9415,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
                 gen_set_label(l1);
             }
         }
-        opn = "movn.d";
         break;
     case OPC_RECIP_D:
         check_cp1_64bitmode(ctx);
@@ -9848,7 +9426,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp0, fd);
             tcg_temp_free_i64(fp0);
         }
-        opn = "recip.d";
         break;
     case OPC_RSQRT_D:
         check_cp1_64bitmode(ctx);
@@ -9860,7 +9437,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp0, fd);
             tcg_temp_free_i64(fp0);
         }
-        opn = "rsqrt.d";
         break;
     case OPC_MADDF_D:
         check_insn(ctx, ISA_MIPS32R6);
@@ -9876,7 +9452,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             tcg_temp_free_i64(fp2);
             tcg_temp_free_i64(fp1);
             tcg_temp_free_i64(fp0);
-            opn = "maddf.d";
         }
         break;
     case OPC_MSUBF_D:
@@ -9893,7 +9468,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             tcg_temp_free_i64(fp2);
             tcg_temp_free_i64(fp1);
             tcg_temp_free_i64(fp0);
-            opn = "msubf.d";
         }
         break;
     case OPC_RINT_D:
@@ -9904,7 +9478,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_helper_float_rint_d(fp0, cpu_env, fp0);
             gen_store_fpr64(ctx, fp0, fd);
             tcg_temp_free_i64(fp0);
-            opn = "rint.d";
         }
         break;
     case OPC_CLASS_D:
@@ -9915,7 +9488,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_helper_float_class_d(fp0, fp0);
             gen_store_fpr64(ctx, fp0, fd);
             tcg_temp_free_i64(fp0);
-            opn = "class.d";
         }
         break;
     case OPC_MIN_D: /* OPC_RECIP2_D */
@@ -9929,7 +9501,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp1, fd);
             tcg_temp_free_i64(fp1);
             tcg_temp_free_i64(fp0);
-            opn = "min.d";
         } else {
             /* OPC_RECIP2_D */
             check_cp1_64bitmode(ctx);
@@ -9944,7 +9515,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
                 gen_store_fpr64(ctx, fp0, fd);
                 tcg_temp_free_i64(fp0);
             }
-            opn = "recip2.d";
         }
         break;
     case OPC_MINA_D: /* OPC_RECIP1_D */
@@ -9958,7 +9528,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp1, fd);
             tcg_temp_free_i64(fp1);
             tcg_temp_free_i64(fp0);
-            opn = "mina.d";
         } else {
             /* OPC_RECIP1_D */
             check_cp1_64bitmode(ctx);
@@ -9970,7 +9539,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
                 gen_store_fpr64(ctx, fp0, fd);
                 tcg_temp_free_i64(fp0);
             }
-            opn = "recip1.d";
         }
         break;
     case OPC_MAX_D: /*  OPC_RSQRT1_D */
@@ -9984,7 +9552,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp1, fd);
             tcg_temp_free_i64(fp1);
             tcg_temp_free_i64(fp0);
-            opn = "max.d";
         } else {
             /* OPC_RSQRT1_D */
             check_cp1_64bitmode(ctx);
@@ -9996,7 +9563,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
                 gen_store_fpr64(ctx, fp0, fd);
                 tcg_temp_free_i64(fp0);
             }
-            opn = "rsqrt1.d";
         }
         break;
     case OPC_MAXA_D: /* OPC_RSQRT2_D */
@@ -10010,7 +9576,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp1, fd);
             tcg_temp_free_i64(fp1);
             tcg_temp_free_i64(fp0);
-            opn = "maxa.d";
         } else {
             /* OPC_RSQRT2_D */
             check_cp1_64bitmode(ctx);
@@ -10025,7 +9590,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
                 gen_store_fpr64(ctx, fp0, fd);
                 tcg_temp_free_i64(fp0);
             }
-            opn = "rsqrt2.d";
         }
         break;
     case OPC_CMP_F_D:
@@ -10047,12 +9611,9 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
         check_insn_opc_removed(ctx, ISA_MIPS32R6);
         if (ctx->opcode & (1 << 6)) {
             gen_cmpabs_d(ctx, func-48, ft, fs, cc);
-            opn = condnames_abs[func-48];
         } else {
             gen_cmp_d(ctx, func-48, ft, fs, cc);
-            opn = condnames[func-48];
         }
-        optype = CMPOP;
         break;
     case OPC_CVT_S_D:
         check_cp1_registers(ctx, fs);
@@ -10066,7 +9627,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr32(ctx, fp32, fd);
             tcg_temp_free_i32(fp32);
         }
-        opn = "cvt.s.d";
         break;
     case OPC_CVT_W_D:
         check_cp1_registers(ctx, fs);
@@ -10080,7 +9640,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr32(ctx, fp32, fd);
             tcg_temp_free_i32(fp32);
         }
-        opn = "cvt.w.d";
         break;
     case OPC_CVT_L_D:
         check_cp1_64bitmode(ctx);
@@ -10092,7 +9651,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp0, fd);
             tcg_temp_free_i64(fp0);
         }
-        opn = "cvt.l.d";
         break;
     case OPC_CVT_S_W:
         {
@@ -10103,7 +9661,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr32(ctx, fp0, fd);
             tcg_temp_free_i32(fp0);
         }
-        opn = "cvt.s.w";
         break;
     case OPC_CVT_D_W:
         check_cp1_registers(ctx, fd);
@@ -10117,7 +9674,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp64, fd);
             tcg_temp_free_i64(fp64);
         }
-        opn = "cvt.d.w";
         break;
     case OPC_CVT_S_L:
         check_cp1_64bitmode(ctx);
@@ -10131,7 +9687,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr32(ctx, fp32, fd);
             tcg_temp_free_i32(fp32);
         }
-        opn = "cvt.s.l";
         break;
     case OPC_CVT_D_L:
         check_cp1_64bitmode(ctx);
@@ -10143,7 +9698,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp0, fd);
             tcg_temp_free_i64(fp0);
         }
-        opn = "cvt.d.l";
         break;
     case OPC_CVT_PS_PW:
         check_ps(ctx);
@@ -10155,7 +9709,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp0, fd);
             tcg_temp_free_i64(fp0);
         }
-        opn = "cvt.ps.pw";
         break;
     case OPC_ADD_PS:
         check_ps(ctx);
@@ -10170,7 +9723,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp0, fd);
             tcg_temp_free_i64(fp0);
         }
-        opn = "add.ps";
         break;
     case OPC_SUB_PS:
         check_ps(ctx);
@@ -10185,7 +9737,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp0, fd);
             tcg_temp_free_i64(fp0);
         }
-        opn = "sub.ps";
         break;
     case OPC_MUL_PS:
         check_ps(ctx);
@@ -10200,7 +9751,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp0, fd);
             tcg_temp_free_i64(fp0);
         }
-        opn = "mul.ps";
         break;
     case OPC_ABS_PS:
         check_ps(ctx);
@@ -10212,7 +9762,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp0, fd);
             tcg_temp_free_i64(fp0);
         }
-        opn = "abs.ps";
         break;
     case OPC_MOV_PS:
         check_ps(ctx);
@@ -10223,7 +9772,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp0, fd);
             tcg_temp_free_i64(fp0);
         }
-        opn = "mov.ps";
         break;
     case OPC_NEG_PS:
         check_ps(ctx);
@@ -10235,12 +9783,10 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp0, fd);
             tcg_temp_free_i64(fp0);
         }
-        opn = "neg.ps";
         break;
     case OPC_MOVCF_PS:
         check_ps(ctx);
         gen_movcf_ps(ctx, fs, fd, (ft >> 2) & 0x7, ft & 0x1);
-        opn = "movcf.ps";
         break;
     case OPC_MOVZ_PS:
         check_ps(ctx);
@@ -10256,7 +9802,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             tcg_temp_free_i64(fp0);
             gen_set_label(l1);
         }
-        opn = "movz.ps";
         break;
     case OPC_MOVN_PS:
         check_ps(ctx);
@@ -10273,7 +9818,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
                 gen_set_label(l1);
             }
         }
-        opn = "movn.ps";
         break;
     case OPC_ADDR_PS:
         check_ps(ctx);
@@ -10288,7 +9832,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp0, fd);
             tcg_temp_free_i64(fp0);
         }
-        opn = "addr.ps";
         break;
     case OPC_MULR_PS:
         check_ps(ctx);
@@ -10303,7 +9846,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp0, fd);
             tcg_temp_free_i64(fp0);
         }
-        opn = "mulr.ps";
         break;
     case OPC_RECIP2_PS:
         check_ps(ctx);
@@ -10318,7 +9860,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp0, fd);
             tcg_temp_free_i64(fp0);
         }
-        opn = "recip2.ps";
         break;
     case OPC_RECIP1_PS:
         check_ps(ctx);
@@ -10330,7 +9871,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp0, fd);
             tcg_temp_free_i64(fp0);
         }
-        opn = "recip1.ps";
         break;
     case OPC_RSQRT1_PS:
         check_ps(ctx);
@@ -10342,7 +9882,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp0, fd);
             tcg_temp_free_i64(fp0);
         }
-        opn = "rsqrt1.ps";
         break;
     case OPC_RSQRT2_PS:
         check_ps(ctx);
@@ -10357,7 +9896,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp0, fd);
             tcg_temp_free_i64(fp0);
         }
-        opn = "rsqrt2.ps";
         break;
     case OPC_CVT_S_PU:
         check_cp1_64bitmode(ctx);
@@ -10369,7 +9907,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr32(ctx, fp0, fd);
             tcg_temp_free_i32(fp0);
         }
-        opn = "cvt.s.pu";
         break;
     case OPC_CVT_PW_PS:
         check_ps(ctx);
@@ -10381,7 +9918,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr64(ctx, fp0, fd);
             tcg_temp_free_i64(fp0);
         }
-        opn = "cvt.pw.ps";
         break;
     case OPC_CVT_S_PL:
         check_cp1_64bitmode(ctx);
@@ -10393,7 +9929,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             gen_store_fpr32(ctx, fp0, fd);
             tcg_temp_free_i32(fp0);
         }
-        opn = "cvt.s.pl";
         break;
     case OPC_PLL_PS:
         check_ps(ctx);
@@ -10408,7 +9943,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             tcg_temp_free_i32(fp0);
             tcg_temp_free_i32(fp1);
         }
-        opn = "pll.ps";
         break;
     case OPC_PLU_PS:
         check_ps(ctx);
@@ -10423,7 +9957,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             tcg_temp_free_i32(fp0);
             tcg_temp_free_i32(fp1);
         }
-        opn = "plu.ps";
         break;
     case OPC_PUL_PS:
         check_ps(ctx);
@@ -10438,7 +9971,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             tcg_temp_free_i32(fp0);
             tcg_temp_free_i32(fp1);
         }
-        opn = "pul.ps";
         break;
     case OPC_PUU_PS:
         check_ps(ctx);
@@ -10453,7 +9985,6 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
             tcg_temp_free_i32(fp0);
             tcg_temp_free_i32(fp1);
         }
-        opn = "puu.ps";
         break;
     case OPC_CMP_F_PS:
     case OPC_CMP_UN_PS:
@@ -10473,38 +10004,21 @@  static void gen_farith (DisasContext *ctx, enum fopcode op1,
     case OPC_CMP_NGT_PS:
         if (ctx->opcode & (1 << 6)) {
             gen_cmpabs_ps(ctx, func-48, ft, fs, cc);
-            opn = condnames_abs[func-48];
         } else {
             gen_cmp_ps(ctx, func-48, ft, fs, cc);
-            opn = condnames[func-48];
         }
-        optype = CMPOP;
         break;
     default:
-        MIPS_INVAL(opn);
+        MIPS_INVAL("farith");
         generate_exception (ctx, EXCP_RI);
         return;
     }
-    (void)opn; /* avoid a compiler warning */
-    switch (optype) {
-    case BINOP:
-        MIPS_DEBUG("%s %s, %s, %s", opn, fregnames[fd], fregnames[fs], fregnames[ft]);
-        break;
-    case CMPOP:
-        MIPS_DEBUG("%s %s,%s", opn, fregnames[fs], fregnames[ft]);
-        break;
-    default:
-        MIPS_DEBUG("%s %s,%s", opn, fregnames[fd], fregnames[fs]);
-        break;
-    }
 }
 
 /* Coprocessor 3 (FPU) */
 static void gen_flt3_ldst (DisasContext *ctx, uint32_t opc,
                            int fd, int fs, int base, int index)
 {
-    const char *opn = "extended float load/store";
-    int store = 0;
     TCGv t0 = tcg_temp_new();
 
     if (base == 0) {
@@ -10527,7 +10041,6 @@  static void gen_flt3_ldst (DisasContext *ctx, uint32_t opc,
             gen_store_fpr32(ctx, fp0, fd);
             tcg_temp_free_i32(fp0);
         }
-        opn = "lwxc1";
         break;
     case OPC_LDXC1:
         check_cop1x(ctx);
@@ -10538,7 +10051,6 @@  static void gen_flt3_ldst (DisasContext *ctx, uint32_t opc,
             gen_store_fpr64(ctx, fp0, fd);
             tcg_temp_free_i64(fp0);
         }
-        opn = "ldxc1";
         break;
     case OPC_LUXC1:
         check_cp1_64bitmode(ctx);
@@ -10550,7 +10062,6 @@  static void gen_flt3_ldst (DisasContext *ctx, uint32_t opc,
             gen_store_fpr64(ctx, fp0, fd);
             tcg_temp_free_i64(fp0);
         }
-        opn = "luxc1";
         break;
     case OPC_SWXC1:
         check_cop1x(ctx);
@@ -10560,8 +10071,6 @@  static void gen_flt3_ldst (DisasContext *ctx, uint32_t opc,
             tcg_gen_qemu_st_i32(fp0, t0, ctx->mem_idx, MO_TEUL);
             tcg_temp_free_i32(fp0);
         }
-        opn = "swxc1";
-        store = 1;
         break;
     case OPC_SDXC1:
         check_cop1x(ctx);
@@ -10572,8 +10081,6 @@  static void gen_flt3_ldst (DisasContext *ctx, uint32_t opc,
             tcg_gen_qemu_st_i64(fp0, t0, ctx->mem_idx, MO_TEQ);
             tcg_temp_free_i64(fp0);
         }
-        opn = "sdxc1";
-        store = 1;
         break;
     case OPC_SUXC1:
         check_cp1_64bitmode(ctx);
@@ -10584,21 +10091,14 @@  static void gen_flt3_ldst (DisasContext *ctx, uint32_t opc,
             tcg_gen_qemu_st_i64(fp0, t0, ctx->mem_idx, MO_TEQ);
             tcg_temp_free_i64(fp0);
         }
-        opn = "suxc1";
-        store = 1;
         break;
     }
     tcg_temp_free(t0);
-    (void)opn; (void)store; /* avoid compiler warnings */
-    MIPS_DEBUG("%s %s, %s(%s)", opn, fregnames[store ? fs : fd],
-               regnames[index], regnames[base]);
 }
 
 static void gen_flt3_arith (DisasContext *ctx, uint32_t opc,
                             int fd, int fr, int fs, int ft)
 {
-    const char *opn = "flt3_arith";
-
     switch (opc) {
     case OPC_ALNV_PS:
         check_ps(ctx);
@@ -10636,7 +10136,6 @@  static void gen_flt3_arith (DisasContext *ctx, uint32_t opc,
             tcg_temp_free_i32(fp);
             tcg_temp_free_i32(fph);
         }
-        opn = "alnv.ps";
         break;
     case OPC_MADD_S:
         check_cop1x(ctx);
@@ -10654,7 +10153,6 @@  static void gen_flt3_arith (DisasContext *ctx, uint32_t opc,
             gen_store_fpr32(ctx, fp2, fd);
             tcg_temp_free_i32(fp2);
         }
-        opn = "madd.s";
         break;
     case OPC_MADD_D:
         check_cop1x(ctx);
@@ -10673,7 +10171,6 @@  static void gen_flt3_arith (DisasContext *ctx, uint32_t opc,
             gen_store_fpr64(ctx, fp2, fd);
             tcg_temp_free_i64(fp2);
         }
-        opn = "madd.d";
         break;
     case OPC_MADD_PS:
         check_ps(ctx);
@@ -10691,7 +10188,6 @@  static void gen_flt3_arith (DisasContext *ctx, uint32_t opc,
             gen_store_fpr64(ctx, fp2, fd);
             tcg_temp_free_i64(fp2);
         }
-        opn = "madd.ps";
         break;
     case OPC_MSUB_S:
         check_cop1x(ctx);
@@ -10709,7 +10205,6 @@  static void gen_flt3_arith (DisasContext *ctx, uint32_t opc,
             gen_store_fpr32(ctx, fp2, fd);
             tcg_temp_free_i32(fp2);
         }
-        opn = "msub.s";
         break;
     case OPC_MSUB_D:
         check_cop1x(ctx);
@@ -10728,7 +10223,6 @@  static void gen_flt3_arith (DisasContext *ctx, uint32_t opc,
             gen_store_fpr64(ctx, fp2, fd);
             tcg_temp_free_i64(fp2);
         }
-        opn = "msub.d";
         break;
     case OPC_MSUB_PS:
         check_ps(ctx);
@@ -10746,7 +10240,6 @@  static void gen_flt3_arith (DisasContext *ctx, uint32_t opc,
             gen_store_fpr64(ctx, fp2, fd);
             tcg_temp_free_i64(fp2);
         }
-        opn = "msub.ps";
         break;
     case OPC_NMADD_S:
         check_cop1x(ctx);
@@ -10764,7 +10257,6 @@  static void gen_flt3_arith (DisasContext *ctx, uint32_t opc,
             gen_store_fpr32(ctx, fp2, fd);
             tcg_temp_free_i32(fp2);
         }
-        opn = "nmadd.s";
         break;
     case OPC_NMADD_D:
         check_cop1x(ctx);
@@ -10783,7 +10275,6 @@  static void gen_flt3_arith (DisasContext *ctx, uint32_t opc,
             gen_store_fpr64(ctx, fp2, fd);
             tcg_temp_free_i64(fp2);
         }
-        opn = "nmadd.d";
         break;
     case OPC_NMADD_PS:
         check_ps(ctx);
@@ -10801,7 +10292,6 @@  static void gen_flt3_arith (DisasContext *ctx, uint32_t opc,
             gen_store_fpr64(ctx, fp2, fd);
             tcg_temp_free_i64(fp2);
         }
-        opn = "nmadd.ps";
         break;
     case OPC_NMSUB_S:
         check_cop1x(ctx);
@@ -10819,7 +10309,6 @@  static void gen_flt3_arith (DisasContext *ctx, uint32_t opc,
             gen_store_fpr32(ctx, fp2, fd);
             tcg_temp_free_i32(fp2);
         }
-        opn = "nmsub.s";
         break;
     case OPC_NMSUB_D:
         check_cop1x(ctx);
@@ -10838,7 +10327,6 @@  static void gen_flt3_arith (DisasContext *ctx, uint32_t opc,
             gen_store_fpr64(ctx, fp2, fd);
             tcg_temp_free_i64(fp2);
         }
-        opn = "nmsub.d";
         break;
     case OPC_NMSUB_PS:
         check_ps(ctx);
@@ -10856,16 +10344,12 @@  static void gen_flt3_arith (DisasContext *ctx, uint32_t opc,
             gen_store_fpr64(ctx, fp2, fd);
             tcg_temp_free_i64(fp2);
         }
-        opn = "nmsub.ps";
         break;
     default:
-        MIPS_INVAL(opn);
+        MIPS_INVAL("flt3_arith");
         generate_exception (ctx, EXCP_RI);
         return;
     }
-    (void)opn; /* avoid a compiler warning */
-    MIPS_DEBUG("%s %s, %s, %s, %s", opn, fregnames[fd], fregnames[fr],
-               fregnames[fs], fregnames[ft]);
 }
 
 static void gen_rdhwr(DisasContext *ctx, int rt, int rd)
@@ -10947,12 +10431,10 @@  static void gen_branch(DisasContext *ctx, int insn_bytes)
         /* FIXME: Need to clear can_do_io.  */
         switch (proc_hflags & MIPS_HFLAG_BMASK_BASE) {
         case MIPS_HFLAG_FBNSLOT:
-            MIPS_DEBUG("forbidden slot");
             gen_goto_tb(ctx, 0, ctx->pc + insn_bytes);
             break;
         case MIPS_HFLAG_B:
             /* unconditional branch */
-            MIPS_DEBUG("unconditional branch");
             if (proc_hflags & MIPS_HFLAG_BX) {
                 tcg_gen_xori_i32(hflags, hflags, MIPS_HFLAG_M16);
             }
@@ -10960,12 +10442,10 @@  static void gen_branch(DisasContext *ctx, int insn_bytes)
             break;
         case MIPS_HFLAG_BL:
             /* blikely taken case */
-            MIPS_DEBUG("blikely branch taken");
             gen_goto_tb(ctx, 0, ctx->btarget);
             break;
         case MIPS_HFLAG_BC:
             /* Conditional branch */
-            MIPS_DEBUG("conditional branch");
             {
                 TCGLabel *l1 = gen_new_label();
 
@@ -10977,7 +10457,6 @@  static void gen_branch(DisasContext *ctx, int insn_bytes)
             break;
         case MIPS_HFLAG_BR:
             /* unconditional branch to register */
-            MIPS_DEBUG("branch to register");
             if (ctx->insn_flags & (ASE_MIPS16 | ASE_MICROMIPS)) {
                 TCGv t0 = tcg_temp_new();
                 TCGv_i32 t1 = tcg_temp_new_i32();
@@ -11236,7 +10715,6 @@  static void gen_compute_compact_branch(DisasContext *ctx, uint32_t opc,
         gen_set_label(fs);
 
         ctx->hflags |= MIPS_HFLAG_FBNSLOT;
-        MIPS_DEBUG("Compact conditional branch");
     }
 
 out:
@@ -13027,7 +12505,6 @@  static void gen_andi16(DisasContext *ctx)
 static void gen_ldst_multiple (DisasContext *ctx, uint32_t opc, int reglist,
                                int base, int16_t offset)
 {
-    const char *opn = "ldst_multiple";
     TCGv t0, t1;
     TCGv_i32 t2;
 
@@ -13047,25 +12524,19 @@  static void gen_ldst_multiple (DisasContext *ctx, uint32_t opc, int reglist,
     switch (opc) {
     case LWM32:
         gen_helper_lwm(cpu_env, t0, t1, t2);
-        opn = "lwm";
         break;
     case SWM32:
         gen_helper_swm(cpu_env, t0, t1, t2);
-        opn = "swm";
         break;
 #ifdef TARGET_MIPS64
     case LDM:
         gen_helper_ldm(cpu_env, t0, t1, t2);
-        opn = "ldm";
         break;
     case SDM:
         gen_helper_sdm(cpu_env, t0, t1, t2);
-        opn = "sdm";
         break;
 #endif
     }
-    (void)opn;
-    MIPS_DEBUG("%s, %x, %d(%s)", opn, reglist, offset, regnames[base]);
     tcg_temp_free(t0);
     tcg_temp_free(t1);
     tcg_temp_free_i32(t2);
@@ -13322,7 +12793,6 @@  static void gen_ldxs (DisasContext *ctx, int base, int index, int rd)
 static void gen_ldst_pair (DisasContext *ctx, uint32_t opc, int rd,
                            int base, int16_t offset)
 {
-    const char *opn = "ldst_pair";
     TCGv t0, t1;
 
     if (ctx->hflags & MIPS_HFLAG_BMASK || rd == 31) {
@@ -13347,7 +12817,6 @@  static void gen_ldst_pair (DisasContext *ctx, uint32_t opc, int rd,
         gen_op_addr_add(ctx, t0, t0, t1);
         tcg_gen_qemu_ld_tl(t1, t0, ctx->mem_idx, MO_TESL);
         gen_store_gpr(t1, rd+1);
-        opn = "lwp";
         break;
     case SWP:
         gen_load_gpr(t1, rd);
@@ -13356,7 +12825,6 @@  static void gen_ldst_pair (DisasContext *ctx, uint32_t opc, int rd,
         gen_op_addr_add(ctx, t0, t0, t1);
         gen_load_gpr(t1, rd+1);
         tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, MO_TEUL);
-        opn = "swp";
         break;
 #ifdef TARGET_MIPS64
     case LDP:
@@ -13370,7 +12838,6 @@  static void gen_ldst_pair (DisasContext *ctx, uint32_t opc, int rd,
         gen_op_addr_add(ctx, t0, t0, t1);
         tcg_gen_qemu_ld_tl(t1, t0, ctx->mem_idx, MO_TEQ);
         gen_store_gpr(t1, rd+1);
-        opn = "ldp";
         break;
     case SDP:
         gen_load_gpr(t1, rd);
@@ -13379,12 +12846,9 @@  static void gen_ldst_pair (DisasContext *ctx, uint32_t opc, int rd,
         gen_op_addr_add(ctx, t0, t0, t1);
         gen_load_gpr(t1, rd+1);
         tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, MO_TEQ);
-        opn = "sdp";
         break;
 #endif
     }
-    (void)opn; /* avoid a compiler warning */
-    MIPS_DEBUG("%s, %s, %d(%s)", opn, regnames[rd], offset, regnames[base]);
     tcg_temp_free(t0);
     tcg_temp_free(t1);
 }
@@ -15517,7 +14981,6 @@  static int decode_micromips_opc (CPUMIPSState *env, DisasContext *ctx)
 static void gen_mipsdsp_ld(DisasContext *ctx, uint32_t opc,
                            int rd, int base, int offset)
 {
-    const char *opn = "ldx";
     TCGv t0;
 
     check_dsp(ctx);
@@ -15535,42 +14998,33 @@  static void gen_mipsdsp_ld(DisasContext *ctx, uint32_t opc,
     case OPC_LBUX:
         tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx, MO_UB);
         gen_store_gpr(t0, rd);
-        opn = "lbux";
         break;
     case OPC_LHX:
         tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx, MO_TESW);
         gen_store_gpr(t0, rd);
-        opn = "lhx";
         break;
     case OPC_LWX:
         tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx, MO_TESL);
         gen_store_gpr(t0, rd);
-        opn = "lwx";
         break;
 #if defined(TARGET_MIPS64)
     case OPC_LDX:
         tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx, MO_TEQ);
         gen_store_gpr(t0, rd);
-        opn = "ldx";
         break;
 #endif
     }
-    (void)opn; /* avoid a compiler warning */
-    MIPS_DEBUG("%s %s, %s(%s)", opn,
-               regnames[rd], regnames[offset], regnames[base]);
     tcg_temp_free(t0);
 }
 
 static void gen_mipsdsp_arith(DisasContext *ctx, uint32_t op1, uint32_t op2,
                               int ret, int v1, int v2)
 {
-    const char *opn = "mipsdsp arith";
     TCGv v1_t;
     TCGv v2_t;
 
     if (ret == 0) {
         /* Treat as NOP. */
-        MIPS_DEBUG("NOP");
         return;
     }
 
@@ -16010,23 +15464,18 @@  static void gen_mipsdsp_arith(DisasContext *ctx, uint32_t op1, uint32_t op2,
 
     tcg_temp_free(v1_t);
     tcg_temp_free(v2_t);
-
-    (void)opn; /* avoid a compiler warning */
-    MIPS_DEBUG("%s", opn);
 }
 
 static void gen_mipsdsp_shift(DisasContext *ctx, uint32_t opc,
                               int ret, int v1, int v2)
 {
     uint32_t op2;
-    const char *opn = "mipsdsp shift";
     TCGv t0;
     TCGv v1_t;
     TCGv v2_t;
 
     if (ret == 0) {
         /* Treat as NOP. */
-        MIPS_DEBUG("NOP");
         return;
     }
 
@@ -16258,21 +15707,17 @@  static void gen_mipsdsp_shift(DisasContext *ctx, uint32_t opc,
     tcg_temp_free(t0);
     tcg_temp_free(v1_t);
     tcg_temp_free(v2_t);
-    (void)opn; /* avoid a compiler warning */
-    MIPS_DEBUG("%s", opn);
 }
 
 static void gen_mipsdsp_multiply(DisasContext *ctx, uint32_t op1, uint32_t op2,
                                  int ret, int v1, int v2, int check_ret)
 {
-    const char *opn = "mipsdsp multiply";
     TCGv_i32 t0;
     TCGv v1_t;
     TCGv v2_t;
 
     if ((ret == 0) && (check_ret == 1)) {
         /* Treat as NOP. */
-        MIPS_DEBUG("NOP");
         return;
     }
 
@@ -16570,23 +16015,17 @@  static void gen_mipsdsp_multiply(DisasContext *ctx, uint32_t op1, uint32_t op2,
     tcg_temp_free_i32(t0);
     tcg_temp_free(v1_t);
     tcg_temp_free(v2_t);
-
-    (void)opn; /* avoid a compiler warning */
-    MIPS_DEBUG("%s", opn);
-
 }
 
 static void gen_mipsdsp_bitinsn(DisasContext *ctx, uint32_t op1, uint32_t op2,
                                 int ret, int val)
 {
-    const char *opn = "mipsdsp Bit/ Manipulation";
     int16_t imm;
     TCGv t0;
     TCGv val_t;
 
     if (ret == 0) {
         /* Treat as NOP. */
-        MIPS_DEBUG("NOP");
         return;
     }
 
@@ -16714,23 +16153,18 @@  static void gen_mipsdsp_bitinsn(DisasContext *ctx, uint32_t op1, uint32_t op2,
     }
     tcg_temp_free(t0);
     tcg_temp_free(val_t);
-
-    (void)opn; /* avoid a compiler warning */
-    MIPS_DEBUG("%s", opn);
 }
 
 static void gen_mipsdsp_add_cmp_pick(DisasContext *ctx,
                                      uint32_t op1, uint32_t op2,
                                      int ret, int v1, int v2, int check_ret)
 {
-    const char *opn = "mipsdsp add compare pick";
     TCGv t1;
     TCGv v1_t;
     TCGv v2_t;
 
     if ((ret == 0) && (check_ret == 1)) {
         /* Treat as NOP. */
-        MIPS_DEBUG("NOP");
         return;
     }
 
@@ -16905,22 +16339,17 @@  static void gen_mipsdsp_add_cmp_pick(DisasContext *ctx,
     tcg_temp_free(t1);
     tcg_temp_free(v1_t);
     tcg_temp_free(v2_t);
-
-    (void)opn; /* avoid a compiler warning */
-    MIPS_DEBUG("%s", opn);
 }
 
 static void gen_mipsdsp_append(CPUMIPSState *env, DisasContext *ctx,
                                uint32_t op1, int rt, int rs, int sa)
 {
-    const char *opn = "mipsdsp append/dappend";
     TCGv t0;
 
     check_dspr2(ctx);
 
     if (rt == 0) {
         /* Treat as NOP. */
-        MIPS_DEBUG("NOP");
         return;
     }
 
@@ -16998,15 +16427,12 @@  static void gen_mipsdsp_append(CPUMIPSState *env, DisasContext *ctx,
 #endif
     }
     tcg_temp_free(t0);
-    (void)opn; /* avoid a compiler warning */
-    MIPS_DEBUG("%s", opn);
 }
 
 static void gen_mipsdsp_accinsn(DisasContext *ctx, uint32_t op1, uint32_t op2,
                                 int ret, int v1, int v2, int check_ret)
 
 {
-    const char *opn = "mipsdsp accumulator";
     TCGv t0;
     TCGv t1;
     TCGv v1_t;
@@ -17015,7 +16441,6 @@  static void gen_mipsdsp_accinsn(DisasContext *ctx, uint32_t op1, uint32_t op2,
 
     if ((ret == 0) && (check_ret == 1)) {
         /* Treat as NOP. */
-        MIPS_DEBUG("NOP");
         return;
     }
 
@@ -17227,9 +16652,6 @@  static void gen_mipsdsp_accinsn(DisasContext *ctx, uint32_t op1, uint32_t op2,
     tcg_temp_free(t1);
     tcg_temp_free(v1_t);
     tcg_temp_free(v2_t);
-
-    (void)opn; /* avoid a compiler warning */
-    MIPS_DEBUG("%s", opn);
 }
 
 /* End MIPSDSP functions. */
@@ -17431,7 +16853,6 @@  static void decode_opc_special(CPUMIPSState *env, DisasContext *ctx)
             rs == 0 && rt == 0) { /* PAUSE */
             if ((ctx->insn_flags & ISA_MIPS32R6) &&
                 (ctx->hflags & MIPS_HFLAG_BMASK)) {
-                MIPS_DEBUG("CTI in delay / forbidden slot");
                 generate_exception(ctx, EXCP_RI);
                 break;
             }
@@ -17985,7 +17406,6 @@  static void decode_opc_special3_legacy(CPUMIPSState *env, DisasContext *ctx)
                 TCGv t0, t1;
 
                 if (rt == 0) {
-                    MIPS_DEBUG("NOP");
                     break;
                 }
 
@@ -18253,7 +17673,6 @@  static void decode_opc_special3_legacy(CPUMIPSState *env, DisasContext *ctx)
             TCGv t0, t1;
 
             if (rt == 0) {
-                MIPS_DEBUG("NOP");
                 break;
             }
             check_dsp(ctx);
@@ -18450,7 +17869,6 @@  static void gen_msa_branch(CPUMIPSState *env, DisasContext *ctx, uint32_t op1)
     check_msa_access(ctx);
 
     if (ctx->insn_flags & ISA_MIPS32R6 && ctx->hflags & MIPS_HFLAG_BMASK) {
-        MIPS_DEBUG("CTI in delay / forbidden slot");
         generate_exception(ctx, EXCP_RI);
         return;
     }
@@ -19508,7 +18926,6 @@  static void decode_opc(CPUMIPSState *env, DisasContext *ctx)
     if ((ctx->hflags & MIPS_HFLAG_BMASK_BASE) == MIPS_HFLAG_BL) {
         TCGLabel *l1 = gen_new_label();
 
-        MIPS_DEBUG("blikely condition (" TARGET_FMT_lx ")", ctx->pc + 4);
         tcg_gen_brcondi_tl(TCG_COND_NE, bcond, 0, l1);
         tcg_gen_movi_i32(hflags, ctx->hflags & ~MIPS_HFLAG_BMASK);
         gen_goto_tb(ctx, 1, ctx->pc + 4);
@@ -19588,7 +19005,6 @@  static void decode_opc(CPUMIPSState *env, DisasContext *ctx)
             if (rs != 0) {
                 tcg_gen_addi_tl(cpu_gpr[rs], cpu_gpr[rs], (int64_t)imm << 32);
             }
-            MIPS_DEBUG("dahi %s, %04x", regnames[rs], imm);
             break;
         case OPC_DATI:
             check_insn(ctx, ISA_MIPS32R6);
@@ -19596,7 +19012,6 @@  static void decode_opc(CPUMIPSState *env, DisasContext *ctx)
             if (rs != 0) {
                 tcg_gen_addi_tl(cpu_gpr[rs], cpu_gpr[rs], (int64_t)imm << 48);
             }
-            MIPS_DEBUG("dati %s, %04x", regnames[rs], imm);
             break;
 #endif
         default:            /* Invalid */
@@ -20124,7 +19539,6 @@  static void decode_opc(CPUMIPSState *env, DisasContext *ctx)
                 tcg_gen_addi_tl(cpu_gpr[rt], t0, imm << 16);
                 tcg_temp_free(t0);
             }
-            MIPS_DEBUG("daui %s, %s, %04x", regnames[rt], regnames[rs], imm);
 #else
             generate_exception(ctx, EXCP_RI);
             MIPS_INVAL("major opcode");