diff options
Diffstat (limited to 'gcc/reload1.c')
| -rw-r--r-- | gcc/reload1.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/gcc/reload1.c b/gcc/reload1.c index 5f1e7b9..fb740aa 100644 --- a/gcc/reload1.c +++ b/gcc/reload1.c @@ -1118,7 +1118,9 @@ reload (first, global, dumpfile) /* Make a pass over all the insns and delete all USEs which we inserted only to tag a REG_EQUAL note on them. Remove all REG_DEAD and REG_UNUSED - notes. Delete all CLOBBER insns and simplify (subreg (reg)) operands. */ + notes. Delete all CLOBBER insns and simplify (subreg (reg)) operands. + Also remove all REG_RETVAL and REG_LIBCALL notes since they are no longer + useful or accurate. */ for (insn = first; insn; insn = NEXT_INSN (insn)) if (GET_RTX_CLASS (GET_CODE (insn)) == 'i') @@ -1139,7 +1141,9 @@ reload (first, global, dumpfile) while (*pnote != 0) { if (REG_NOTE_KIND (*pnote) == REG_DEAD - || REG_NOTE_KIND (*pnote) == REG_UNUSED) + || REG_NOTE_KIND (*pnote) == REG_UNUSED + || REG_NOTE_KIND (*pnote) == REG_RETVAL + || REG_NOTE_KIND (*pnote) == REG_LIBCALL) *pnote = XEXP (*pnote, 1); else pnote = &XEXP (*pnote, 1); |