diff options
Diffstat (limited to 'gcc/cse.c')
| -rw-r--r-- | gcc/cse.c | 8 |
1 files changed, 4 insertions, 4 deletions
@@ -5557,6 +5557,8 @@ cse_insn (insn, libcall_insn) /* Look for a substitution that makes a valid insn. */ else if (validate_change (insn, &SET_SRC (sets[i].rtl), trial, 0)) { + rtx new = canon_reg (SET_SRC (sets[i].rtl), insn); + /* If we just made a substitution inside a libcall, then we need to make the same substitution in any notes attached to the RETVAL insn. */ @@ -5565,14 +5567,12 @@ cse_insn (insn, libcall_insn) || GET_CODE (sets[i].orig_src) == SUBREG || GET_CODE (sets[i].orig_src) == MEM)) replace_rtx (REG_NOTES (libcall_insn), sets[i].orig_src, - canon_reg (SET_SRC (sets[i].rtl), insn)); + copy_rtx (new)); /* The result of apply_change_group can be ignored; see canon_reg. */ - validate_change (insn, &SET_SRC (sets[i].rtl), - canon_reg (SET_SRC (sets[i].rtl), insn), - 1); + validate_change (insn, &SET_SRC (sets[i].rtl), new, 1); apply_change_group (); break; } |