Similar to the mirror case of allocating an FPR for an integer mode
pseudo, prevent GPRs from being allocated for a floating mode pseudo.
gcc/ChangeLog:
* gcc/config/mips/mips.c (mips_ira_change_pseudo_allocno_class):
Limit the allocation of floating mode pseudos to FP_REGS.
---
gcc/config/mips/mips.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/gcc/config/mips/mips.c b/gcc/config/mips/mips.c
index 513fc5f..ffcb14d 100644
--- a/gcc/config/mips/mips.c
+++ b/gcc/config/mips/mips.c
@@ -22492,6 +22492,12 @@ mips_ira_change_pseudo_allocno_class (int regno,
reg_class_t allocno_class,
instructions that say integer mode values must be placed in FPRs. */
if (INTEGRAL_MODE_P (PSEUDO_REGNO_MODE (regno)) && allocno_class == ALL_REGS)
return GR_REGS;
+
+ /* Likewise for the mirror case of floating mode pseudos being allocated in
+ a GPR. */
+ if (FLOAT_MODE_P (PSEUDO_REGNO_MODE (regno)) && allocno_class == ALL_REGS)
+ return FP_REGS;
+
return allocno_class;
}
--
2.7.4
