@@ -11959,6 +11959,9 @@ aarch64_label_mentioned_p (rtx x)
enum reg_class
aarch64_regno_regclass (unsigned regno)
{
+ if (W12_W15_REGNUM_P (regno))
+ return W12_W15_REGS;
+
if (STUB_REGNUM_P (regno))
return STUB_REGS;
@@ -12323,6 +12326,7 @@ aarch64_class_max_nregs (reg_class_t regclass, machine_mode mode)
unsigned int nregs, vec_flags;
switch (regclass)
{
+ case W12_W15_REGS:
case STUB_REGS:
case TAILCALL_ADDR_REGS:
case POINTER_REGS:
@@ -14693,13 +14697,11 @@ aarch64_register_move_cost (machine_mode mode,
const struct cpu_regmove_cost *regmove_cost
= aarch64_tune_params.regmove_cost;
- /* Caller save and pointer regs are equivalent to GENERAL_REGS. */
- if (to == TAILCALL_ADDR_REGS || to == POINTER_REGS
- || to == STUB_REGS)
+ /* Trest any subset of POINTER_REGS as though it were GENERAL_REGS. */
+ if (reg_class_subset_p (to, POINTER_REGS))
to = GENERAL_REGS;
- if (from == TAILCALL_ADDR_REGS || from == POINTER_REGS
- || from == STUB_REGS)
+ if (reg_class_subset_p (from, POINTER_REGS))
from = GENERAL_REGS;
/* Make RDFFR very expensive. In particular, if we know that the FFR
@@ -663,6 +663,9 @@ constexpr auto AARCH64_FL_DEFAULT_ISA_MODE = AARCH64_FL_SM_OFF;
&& (REGNO) != R17_REGNUM \
&& (REGNO) != R30_REGNUM) \
+#define W12_W15_REGNUM_P(REGNO) \
+ IN_RANGE (REGNO, R12_REGNUM, R15_REGNUM)
+
#define FP_REGNUM_P(REGNO) \
(((unsigned) (REGNO - V0_REGNUM)) <= (V31_REGNUM - V0_REGNUM))
@@ -689,6 +692,7 @@ constexpr auto AARCH64_FL_DEFAULT_ISA_MODE = AARCH64_FL_SM_OFF;
enum reg_class
{
NO_REGS,
+ W12_W15_REGS,
TAILCALL_ADDR_REGS,
STUB_REGS,
GENERAL_REGS,
@@ -713,6 +717,7 @@ enum reg_class
#define REG_CLASS_NAMES \
{ \
"NO_REGS", \
+ "W12_W15_REGS", \
"TAILCALL_ADDR_REGS", \
"STUB_REGS", \
"GENERAL_REGS", \
@@ -734,6 +739,7 @@ enum reg_class
#define REG_CLASS_CONTENTS \
{ \
{ 0x00000000, 0x00000000, 0x00000000 }, /* NO_REGS */ \
+ { 0x0000f000, 0x00000000, 0x00000000 }, /* W12_W15_REGS */ \
{ 0x00030000, 0x00000000, 0x00000000 }, /* TAILCALL_ADDR_REGS */\
{ 0x3ffcffff, 0x00000000, 0x00000000 }, /* STUB_REGS */ \
{ 0x7fffffff, 0x00000000, 0x00000003 }, /* GENERAL_REGS */ \