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| author | bernds <bernds@138bc75d-0d04-0410-961f-82ee72b054a4> | 2011-05-04 20:24:15 +0000 |
|---|---|---|
| committer | bernds <bernds@138bc75d-0d04-0410-961f-82ee72b054a4> | 2011-05-04 20:24:15 +0000 |
| commit | 8c936e55ed60072107fa3a7d3cd728f7f74dd198 (patch) | |
| tree | 88c7421e027323dfc259d89cfc562d0c678055a6 /gcc/df-problems.c | |
| parent | 5e1a494e3ecae63bf0d573a0592d691541a203d2 (diff) | |
| download | gcc-8c936e55ed60072107fa3a7d3cd728f7f74dd198.tar.gz | |
PR rtl-optimization/47612
* df-problems.c (can_move_insns_across): Don't pick a cc0 setter
as the last insn of the sequence to be moved.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@173393 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/df-problems.c')
| -rw-r--r-- | gcc/df-problems.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/gcc/df-problems.c b/gcc/df-problems.c index 0f398ba3aa4..e5b88e3d2dc 100644 --- a/gcc/df-problems.c +++ b/gcc/df-problems.c @@ -4001,7 +4001,10 @@ can_move_insns_across (rtx from, rtx to, rtx across_from, rtx across_to, if (bitmap_intersect_p (merge_set, test_use) || bitmap_intersect_p (merge_use, test_set)) break; - max_to = insn; +#ifdef HAVE_cc0 + if (!sets_cc0_p (insn)) +#endif + max_to = insn; } next = NEXT_INSN (insn); if (insn == to) @@ -4038,7 +4041,11 @@ can_move_insns_across (rtx from, rtx to, rtx across_from, rtx across_to, { if (NONDEBUG_INSN_P (insn)) { - if (!bitmap_intersect_p (test_set, local_merge_live)) + if (!bitmap_intersect_p (test_set, local_merge_live) +#ifdef HAVE_cc0 + && !sets_cc0_p (insn) +#endif + ) { max_to = insn; break; |