+2003-01-20 Roger Sayle <roger@eyesopen.com>
+
+ * cse.c (cse_insn): Avoid RTL sharing when updating the RETVAL
+ insn's notes following a substitution inside a libcall.
+
2003-01-20 Zack Weinberg <zack@codesourcery.com>
* configure.in: Check for system-provided 'uchar' type.
/* 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. */
|| 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;
}