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| author | Steven Bosscher <steven@gcc.gnu.org> | 2007-09-05 05:31:37 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@gcc.gnu.org> | 2007-09-05 05:31:37 +0000 |
| commit | bda9fc3983d164a64512e0a5d5d845ea008502cc (patch) | |
| tree | cd7bcf09d04d0b5ca7d8e3d962ba7dcd790a2eab /gcc/lower-subreg.c | |
| parent | 437cc56a07a35aab6bd51ed66b00fc9549076f97 (diff) | |
| download | gcc-bda9fc3983d164a64512e0a5d5d845ea008502cc.zip gcc-bda9fc3983d164a64512e0a5d5d845ea008502cc.tar.gz gcc-bda9fc3983d164a64512e0a5d5d845ea008502cc.tar.bz2 | |
re PR middle-end/33029 (libgcc2.c:1890: internal compiler error: in local_cprop_pass, at gcse.c:3236)
PR middle-end/33029
* lower-subreg.c (resolve_clobber): If we remove a REG_LIBCALL
note, remove the associated REG_RETVAL note.
From-SVN: r128119
Diffstat (limited to 'gcc/lower-subreg.c')
| -rw-r--r-- | gcc/lower-subreg.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/gcc/lower-subreg.c b/gcc/lower-subreg.c index 4354640..696ec61 100644 --- a/gcc/lower-subreg.c +++ b/gcc/lower-subreg.c @@ -897,7 +897,7 @@ resolve_simple_move (rtx set, rtx insn) static bool resolve_clobber (rtx pat, rtx insn) { - rtx reg; + rtx reg, note; enum machine_mode orig_mode; unsigned int words, i; int ret; @@ -909,8 +909,10 @@ resolve_clobber (rtx pat, rtx insn) /* If this clobber has a REG_LIBCALL note, then it is the initial clobber added by emit_no_conflict_block. We were able to decompose the register, so we no longer need the clobber. */ - if (find_reg_note (insn, REG_LIBCALL, NULL_RTX) != NULL_RTX) + note = find_reg_note (insn, REG_LIBCALL, NULL_RTX); + if (note != NULL_RTX) { + remove_retval_note (XEXP (note, 0)); delete_insn (insn); return true; } |