diff mbox series

[3/7] target/ppc: use int128.h methods in vaddecuq and vaddeuqm

Message ID 20220606150037.338931-4-matheus.ferst@eldorado.org.br
State New
Headers show
Series Remove CONFIG_INT128 conditional code from target/ppc/* | expand

Commit Message

Matheus K. Ferst June 6, 2022, 3 p.m. UTC
And also move the insns to decodetree and remove the now unused
avr_qw_addc method.

Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
---
 target/ppc/helper.h                 |  4 +--
 target/ppc/insn32.decode            |  3 ++
 target/ppc/int_helper.c             | 53 +++++------------------------
 target/ppc/translate/vmx-impl.c.inc |  7 ++--
 target/ppc/translate/vmx-ops.c.inc  |  1 -
 5 files changed, 17 insertions(+), 51 deletions(-)

Comments

Víctor Colombo June 27, 2022, 4:25 p.m. UTC | #1
On 06/06/2022 12:00, Matheus Ferst wrote:
> And also move the insns to decodetree and remove the now unused
> avr_qw_addc method.
> 
> Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
> ---
>   target/ppc/helper.h                 |  4 +--
>   target/ppc/insn32.decode            |  3 ++
>   target/ppc/int_helper.c             | 53 +++++------------------------
>   target/ppc/translate/vmx-impl.c.inc |  7 ++--
>   target/ppc/translate/vmx-ops.c.inc  |  1 -
>   5 files changed, 17 insertions(+), 51 deletions(-)
> 
> diff --git a/target/ppc/helper.h b/target/ppc/helper.h
> index c6fbe4b6da..f699adbedc 100644
> --- a/target/ppc/helper.h
> +++ b/target/ppc/helper.h
> @@ -205,8 +205,8 @@ DEF_HELPER_FLAGS_5(vsububs, TCG_CALL_NO_RWG, void, avr, avr, avr, avr, i32)
>   DEF_HELPER_FLAGS_5(vsubuhs, TCG_CALL_NO_RWG, void, avr, avr, avr, avr, i32)
>   DEF_HELPER_FLAGS_5(vsubuws, TCG_CALL_NO_RWG, void, avr, avr, avr, avr, i32)
>   DEF_HELPER_FLAGS_3(VADDUQM, TCG_CALL_NO_RWG, void, avr, avr, avr)
> -DEF_HELPER_FLAGS_4(vaddecuq, TCG_CALL_NO_RWG, void, avr, avr, avr, avr)
> -DEF_HELPER_FLAGS_4(vaddeuqm, TCG_CALL_NO_RWG, void, avr, avr, avr, avr)
> +DEF_HELPER_FLAGS_4(VADDECUQ, TCG_CALL_NO_RWG, void, avr, avr, avr, avr)
> +DEF_HELPER_FLAGS_4(VADDEUQM, TCG_CALL_NO_RWG, void, avr, avr, avr, avr)
>   DEF_HELPER_FLAGS_3(vaddcuq, TCG_CALL_NO_RWG, void, avr, avr, avr)
>   DEF_HELPER_FLAGS_3(vsubuqm, TCG_CALL_NO_RWG, void, avr, avr, avr)
>   DEF_HELPER_FLAGS_4(vsubecuq, TCG_CALL_NO_RWG, void, avr, avr, avr, avr)
> diff --git a/target/ppc/insn32.decode b/target/ppc/insn32.decode
> index d6bfc2c768..139aa3caeb 100644
> --- a/target/ppc/insn32.decode
> +++ b/target/ppc/insn32.decode
> @@ -552,6 +552,9 @@ VRLQNM          000100 ..... ..... ..... 00101000101    @VX
> 
>   VADDUQM         000100 ..... ..... ..... 00100000000    @VX
> 
> +VADDEUQM        000100 ..... ..... ..... ..... 111100   @VA
> +VADDECUQ        000100 ..... ..... ..... ..... 111101   @VA
> +
>   VEXTSB2W        000100 ..... 10000 ..... 11000000010    @VX_tb
>   VEXTSH2W        000100 ..... 10001 ..... 11000000010    @VX_tb
>   VEXTSB2D        000100 ..... 11000 ..... 11000000010    @VX_tb
> diff --git a/target/ppc/int_helper.c b/target/ppc/int_helper.c
> index c32b252639..c5d820f4b1 100644
> --- a/target/ppc/int_helper.c
> +++ b/target/ppc/int_helper.c
> @@ -2212,16 +2212,6 @@ static void avr_qw_add(ppc_avr_t *t, ppc_avr_t a, ppc_avr_t b)
>                        (~a.VsrD(1) < b.VsrD(1));
>   }
> 
> -static int avr_qw_addc(ppc_avr_t *t, ppc_avr_t a, ppc_avr_t b)
> -{
> -    ppc_avr_t not_a;
> -    t->VsrD(1) = a.VsrD(1) + b.VsrD(1);
> -    t->VsrD(0) = a.VsrD(0) + b.VsrD(0) +
> -                     (~a.VsrD(1) < b.VsrD(1));
> -    avr_qw_not(&not_a, a);
> -    return avr_qw_cmpu(not_a, b) < 0;
> -}
> -
>   #endif
> 
>   void helper_VADDUQM(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
> @@ -2229,23 +2219,10 @@ void helper_VADDUQM(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
>       r->s128 = int128_add(a->s128, b->s128);
>   }
> 
> -void helper_vaddeuqm(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c)
> +void helper_VADDEUQM(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c)
>   {
> -#ifdef CONFIG_INT128
> -    r->u128 = a->u128 + b->u128 + (c->u128 & 1);
> -#else
> -
> -    if (c->VsrD(1) & 1) {
> -        ppc_avr_t tmp;
> -
> -        tmp.VsrD(0) = 0;
> -        tmp.VsrD(1) = c->VsrD(1) & 1;
> -        avr_qw_add(&tmp, *a, tmp);
> -        avr_qw_add(r, tmp, *b);
> -    } else {
> -        avr_qw_add(r, *a, *b);
> -    }
> -#endif
> +    r->s128 = int128_add(int128_add(a->s128, b->s128),
> +                         int128_make64(int128_getlo(c->s128) & 1));
>   }
> 
>   void helper_vaddcuq(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
> @@ -2262,30 +2239,18 @@ void helper_vaddcuq(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
>   #endif
>   }
> 
> -void helper_vaddecuq(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c)
> +void helper_VADDECUQ(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c)
>   {
> -#ifdef CONFIG_INT128
> -    int carry_out = (~a->u128 < b->u128);
> -    if (!carry_out && (c->u128 & 1)) {
> -        carry_out = ((a->u128 + b->u128 + 1) == 0) &&
> -                    ((a->u128 != 0) || (b->u128 != 0));
> -    }
> -    r->u128 = carry_out;
> -#else
> -
> -    int carry_in = c->VsrD(1) & 1;
> -    int carry_out = 0;
> -    ppc_avr_t tmp;
> -
> -    carry_out = avr_qw_addc(&tmp, *a, *b);
> +    bool carry_out = int128_ult(int128_not(a->s128), b->s128),
> +         carry_in = int128_getlo(c->s128) & 1;
> 
>       if (!carry_out && carry_in) {
> -        ppc_avr_t one = QW_ONE;
> -        carry_out = avr_qw_addc(&tmp, tmp, one);
> +        carry_out = (int128_nz(a->s128) || int128_nz(b->s128)) &&
> +                    int128_eq(int128_add(a->s128, b->s128), int128_makes64(-1));
>       }
> +
>       r->VsrD(0) = 0;
>       r->VsrD(1) = carry_out;
> -#endif
>   }
> 
>   void helper_vsubuqm(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
> diff --git a/target/ppc/translate/vmx-impl.c.inc b/target/ppc/translate/vmx-impl.c.inc
> index 3fb48404d9..4ec6b841b3 100644
> --- a/target/ppc/translate/vmx-impl.c.inc
> +++ b/target/ppc/translate/vmx-impl.c.inc
> @@ -1235,10 +1235,6 @@ GEN_VXFORM_SAT(vsubsbs, MO_8, sub, sssub, 0, 28);
>   GEN_VXFORM_SAT(vsubshs, MO_16, sub, sssub, 0, 29);
>   GEN_VXFORM_SAT(vsubsws, MO_32, sub, sssub, 0, 30);
>   GEN_VXFORM(vaddcuq, 0, 5);
> -GEN_VXFORM3(vaddeuqm, 30, 0);
> -GEN_VXFORM3(vaddecuq, 30, 0);
> -GEN_VXFORM_DUAL(vaddeuqm, PPC_NONE, PPC2_ALTIVEC_207, \
> -            vaddecuq, PPC_NONE, PPC2_ALTIVEC_207)
>   GEN_VXFORM(vsubuqm, 0, 20);
>   GEN_VXFORM(vsubcuq, 0, 21);
>   GEN_VXFORM3(vsubeuqm, 31, 0);
> @@ -2571,6 +2567,9 @@ static bool do_va_helper(DisasContext *ctx, arg_VA *a,
>       return true;
>   }
> 
> +TRANS_FLAGS2(ALTIVEC_207, VADDECUQ, do_va_helper, gen_helper_VADDECUQ)
> +TRANS_FLAGS2(ALTIVEC_207, VADDEUQM, do_va_helper, gen_helper_VADDEUQM)
> +
>   TRANS_FLAGS(ALTIVEC, VPERM, do_va_helper, gen_helper_VPERM)
>   TRANS_FLAGS2(ISA300, VPERMR, do_va_helper, gen_helper_VPERMR)
> 
> diff --git a/target/ppc/translate/vmx-ops.c.inc b/target/ppc/translate/vmx-ops.c.inc
> index 065b0ba414..f8a512f920 100644
> --- a/target/ppc/translate/vmx-ops.c.inc
> +++ b/target/ppc/translate/vmx-ops.c.inc
> @@ -127,7 +127,6 @@ GEN_VXFORM_DUAL(vsubsbs, bcdtrunc, 0, 28, PPC_ALTIVEC, PPC2_ISA300),
>   GEN_VXFORM(vsubshs, 0, 29),
>   GEN_VXFORM_DUAL(vsubsws, xpnd04_2, 0, 30, PPC_ALTIVEC, PPC_NONE),
>   GEN_VXFORM_207(vaddcuq, 0, 5),
> -GEN_VXFORM_DUAL(vaddeuqm, vaddecuq, 30, 0xFF, PPC_NONE, PPC2_ALTIVEC_207),
>   GEN_VXFORM_DUAL(vsubuqm, bcdtrunc, 0, 20, PPC2_ALTIVEC_207, PPC2_ISA300),
>   GEN_VXFORM_DUAL(vsubcuq, bcdutrunc, 0, 21, PPC2_ALTIVEC_207, PPC2_ISA300),
>   GEN_VXFORM_DUAL(vsubeuqm, vsubecuq, 31, 0xFF, PPC_NONE, PPC2_ALTIVEC_207),
> --
> 2.25.1
> 
> 

Reviewed-by: Víctor Colombo <victor.colombo@eldorado.org.br>
diff mbox series

Patch

diff --git a/target/ppc/helper.h b/target/ppc/helper.h
index c6fbe4b6da..f699adbedc 100644
--- a/target/ppc/helper.h
+++ b/target/ppc/helper.h
@@ -205,8 +205,8 @@  DEF_HELPER_FLAGS_5(vsububs, TCG_CALL_NO_RWG, void, avr, avr, avr, avr, i32)
 DEF_HELPER_FLAGS_5(vsubuhs, TCG_CALL_NO_RWG, void, avr, avr, avr, avr, i32)
 DEF_HELPER_FLAGS_5(vsubuws, TCG_CALL_NO_RWG, void, avr, avr, avr, avr, i32)
 DEF_HELPER_FLAGS_3(VADDUQM, TCG_CALL_NO_RWG, void, avr, avr, avr)
-DEF_HELPER_FLAGS_4(vaddecuq, TCG_CALL_NO_RWG, void, avr, avr, avr, avr)
-DEF_HELPER_FLAGS_4(vaddeuqm, TCG_CALL_NO_RWG, void, avr, avr, avr, avr)
+DEF_HELPER_FLAGS_4(VADDECUQ, TCG_CALL_NO_RWG, void, avr, avr, avr, avr)
+DEF_HELPER_FLAGS_4(VADDEUQM, TCG_CALL_NO_RWG, void, avr, avr, avr, avr)
 DEF_HELPER_FLAGS_3(vaddcuq, TCG_CALL_NO_RWG, void, avr, avr, avr)
 DEF_HELPER_FLAGS_3(vsubuqm, TCG_CALL_NO_RWG, void, avr, avr, avr)
 DEF_HELPER_FLAGS_4(vsubecuq, TCG_CALL_NO_RWG, void, avr, avr, avr, avr)
diff --git a/target/ppc/insn32.decode b/target/ppc/insn32.decode
index d6bfc2c768..139aa3caeb 100644
--- a/target/ppc/insn32.decode
+++ b/target/ppc/insn32.decode
@@ -552,6 +552,9 @@  VRLQNM          000100 ..... ..... ..... 00101000101    @VX
 
 VADDUQM         000100 ..... ..... ..... 00100000000    @VX
 
+VADDEUQM        000100 ..... ..... ..... ..... 111100   @VA
+VADDECUQ        000100 ..... ..... ..... ..... 111101   @VA
+
 VEXTSB2W        000100 ..... 10000 ..... 11000000010    @VX_tb
 VEXTSH2W        000100 ..... 10001 ..... 11000000010    @VX_tb
 VEXTSB2D        000100 ..... 11000 ..... 11000000010    @VX_tb
diff --git a/target/ppc/int_helper.c b/target/ppc/int_helper.c
index c32b252639..c5d820f4b1 100644
--- a/target/ppc/int_helper.c
+++ b/target/ppc/int_helper.c
@@ -2212,16 +2212,6 @@  static void avr_qw_add(ppc_avr_t *t, ppc_avr_t a, ppc_avr_t b)
                      (~a.VsrD(1) < b.VsrD(1));
 }
 
-static int avr_qw_addc(ppc_avr_t *t, ppc_avr_t a, ppc_avr_t b)
-{
-    ppc_avr_t not_a;
-    t->VsrD(1) = a.VsrD(1) + b.VsrD(1);
-    t->VsrD(0) = a.VsrD(0) + b.VsrD(0) +
-                     (~a.VsrD(1) < b.VsrD(1));
-    avr_qw_not(&not_a, a);
-    return avr_qw_cmpu(not_a, b) < 0;
-}
-
 #endif
 
 void helper_VADDUQM(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
@@ -2229,23 +2219,10 @@  void helper_VADDUQM(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
     r->s128 = int128_add(a->s128, b->s128);
 }
 
-void helper_vaddeuqm(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c)
+void helper_VADDEUQM(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c)
 {
-#ifdef CONFIG_INT128
-    r->u128 = a->u128 + b->u128 + (c->u128 & 1);
-#else
-
-    if (c->VsrD(1) & 1) {
-        ppc_avr_t tmp;
-
-        tmp.VsrD(0) = 0;
-        tmp.VsrD(1) = c->VsrD(1) & 1;
-        avr_qw_add(&tmp, *a, tmp);
-        avr_qw_add(r, tmp, *b);
-    } else {
-        avr_qw_add(r, *a, *b);
-    }
-#endif
+    r->s128 = int128_add(int128_add(a->s128, b->s128),
+                         int128_make64(int128_getlo(c->s128) & 1));
 }
 
 void helper_vaddcuq(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
@@ -2262,30 +2239,18 @@  void helper_vaddcuq(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
 #endif
 }
 
-void helper_vaddecuq(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c)
+void helper_VADDECUQ(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c)
 {
-#ifdef CONFIG_INT128
-    int carry_out = (~a->u128 < b->u128);
-    if (!carry_out && (c->u128 & 1)) {
-        carry_out = ((a->u128 + b->u128 + 1) == 0) &&
-                    ((a->u128 != 0) || (b->u128 != 0));
-    }
-    r->u128 = carry_out;
-#else
-
-    int carry_in = c->VsrD(1) & 1;
-    int carry_out = 0;
-    ppc_avr_t tmp;
-
-    carry_out = avr_qw_addc(&tmp, *a, *b);
+    bool carry_out = int128_ult(int128_not(a->s128), b->s128),
+         carry_in = int128_getlo(c->s128) & 1;
 
     if (!carry_out && carry_in) {
-        ppc_avr_t one = QW_ONE;
-        carry_out = avr_qw_addc(&tmp, tmp, one);
+        carry_out = (int128_nz(a->s128) || int128_nz(b->s128)) &&
+                    int128_eq(int128_add(a->s128, b->s128), int128_makes64(-1));
     }
+
     r->VsrD(0) = 0;
     r->VsrD(1) = carry_out;
-#endif
 }
 
 void helper_vsubuqm(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
diff --git a/target/ppc/translate/vmx-impl.c.inc b/target/ppc/translate/vmx-impl.c.inc
index 3fb48404d9..4ec6b841b3 100644
--- a/target/ppc/translate/vmx-impl.c.inc
+++ b/target/ppc/translate/vmx-impl.c.inc
@@ -1235,10 +1235,6 @@  GEN_VXFORM_SAT(vsubsbs, MO_8, sub, sssub, 0, 28);
 GEN_VXFORM_SAT(vsubshs, MO_16, sub, sssub, 0, 29);
 GEN_VXFORM_SAT(vsubsws, MO_32, sub, sssub, 0, 30);
 GEN_VXFORM(vaddcuq, 0, 5);
-GEN_VXFORM3(vaddeuqm, 30, 0);
-GEN_VXFORM3(vaddecuq, 30, 0);
-GEN_VXFORM_DUAL(vaddeuqm, PPC_NONE, PPC2_ALTIVEC_207, \
-            vaddecuq, PPC_NONE, PPC2_ALTIVEC_207)
 GEN_VXFORM(vsubuqm, 0, 20);
 GEN_VXFORM(vsubcuq, 0, 21);
 GEN_VXFORM3(vsubeuqm, 31, 0);
@@ -2571,6 +2567,9 @@  static bool do_va_helper(DisasContext *ctx, arg_VA *a,
     return true;
 }
 
+TRANS_FLAGS2(ALTIVEC_207, VADDECUQ, do_va_helper, gen_helper_VADDECUQ)
+TRANS_FLAGS2(ALTIVEC_207, VADDEUQM, do_va_helper, gen_helper_VADDEUQM)
+
 TRANS_FLAGS(ALTIVEC, VPERM, do_va_helper, gen_helper_VPERM)
 TRANS_FLAGS2(ISA300, VPERMR, do_va_helper, gen_helper_VPERMR)
 
diff --git a/target/ppc/translate/vmx-ops.c.inc b/target/ppc/translate/vmx-ops.c.inc
index 065b0ba414..f8a512f920 100644
--- a/target/ppc/translate/vmx-ops.c.inc
+++ b/target/ppc/translate/vmx-ops.c.inc
@@ -127,7 +127,6 @@  GEN_VXFORM_DUAL(vsubsbs, bcdtrunc, 0, 28, PPC_ALTIVEC, PPC2_ISA300),
 GEN_VXFORM(vsubshs, 0, 29),
 GEN_VXFORM_DUAL(vsubsws, xpnd04_2, 0, 30, PPC_ALTIVEC, PPC_NONE),
 GEN_VXFORM_207(vaddcuq, 0, 5),
-GEN_VXFORM_DUAL(vaddeuqm, vaddecuq, 30, 0xFF, PPC_NONE, PPC2_ALTIVEC_207),
 GEN_VXFORM_DUAL(vsubuqm, bcdtrunc, 0, 20, PPC2_ALTIVEC_207, PPC2_ISA300),
 GEN_VXFORM_DUAL(vsubcuq, bcdutrunc, 0, 21, PPC2_ALTIVEC_207, PPC2_ISA300),
 GEN_VXFORM_DUAL(vsubeuqm, vsubecuq, 31, 0xFF, PPC_NONE, PPC2_ALTIVEC_207),