diff options
Diffstat (limited to 'gcc/regcprop.c')
| -rw-r--r-- | gcc/regcprop.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/gcc/regcprop.c b/gcc/regcprop.c index 0bdd6b9..87cc394 100644 --- a/gcc/regcprop.c +++ b/gcc/regcprop.c @@ -1055,16 +1055,15 @@ copyprop_hardreg_forward_1 (basic_block bb, struct value_data *vd) function_abi callee_abi = insn_callee_abi (insn); for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++) - if ((callee_abi.clobbers_full_reg_p (regno) - || (targetm.hard_regno_call_part_clobbered - (callee_abi.id (), regno, vd->e[regno].mode))) + if (vd->e[regno].mode != VOIDmode + && callee_abi.clobbers_reg_p (vd->e[regno].mode, regno) && (regno < set_regno || regno >= set_regno + set_nregs)) kill_value_regno (regno, 1, vd); /* If SET was seen in CALL_INSN_FUNCTION_USAGE, and SET_SRC - of the SET isn't in regs_invalidated_by_call hard reg set, - but instead among CLOBBERs on the CALL_INSN, we could wrongly - assume the value in it is still live. */ + of the SET isn't clobbered by CALLEE_ABI, but instead among + CLOBBERs on the CALL_INSN, we could wrongly assume the + value in it is still live. */ if (ksvd.ignore_set_reg) kill_clobbered_values (insn, vd); } |