diff options
| author | Jakub Jelinek <jakub@redhat.com> | 2008-11-05 09:03:43 +0000 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2008-11-05 09:03:43 +0000 |
| commit | c0d351cf9523d21c09d0db58bd7ec87edaa5dd89 (patch) | |
| tree | f0edb9fb397c84ec24d8b9a03f63b4caddcae0d5 /gcc/regmove.c | |
| parent | 3e1fdf07d9662b6a79e0d45115d25b54ca9e1e6f (diff) | |
svn merge -r140949:141593 svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_3-branch/redhat/gcc-4_3-branch
git-svn-id: https://gcc.gnu.org/svn/gcc/branches/redhat/gcc-4_3-branch@141601 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/regmove.c')
| -rw-r--r-- | gcc/regmove.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/regmove.c b/gcc/regmove.c index 5a2f9c92ed9..eb2e0f48a50 100644 --- a/gcc/regmove.c +++ b/gcc/regmove.c @@ -686,7 +686,16 @@ optimize_reg_copy_2 (rtx insn, rtx dest, rtx src) { if (reg_mentioned_p (dest, PATTERN (q))) { + rtx note; + PATTERN (q) = replace_rtx (PATTERN (q), dest, src); + note = FIND_REG_INC_NOTE (q, dest); + if (note) + { + remove_note (q, note); + REG_NOTES (q) + = gen_rtx_EXPR_LIST (REG_INC, src, REG_NOTES (q)); + } df_insn_rescan (q); } |