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| author | Bernd Schmidt <bernds@codesourcery.com> | 2011-05-04 20:24:15 +0000 |
|---|---|---|
| committer | Bernd Schmidt <bernds@gcc.gnu.org> | 2011-05-04 20:24:15 +0000 |
| commit | 0360f70d36156a2a537e985f09fbf675c16bda2a (patch) | |
| tree | 88c7421e027323dfc259d89cfc562d0c678055a6 /gcc/df-problems.c | |
| parent | a3330c9d558720697db4f6f767252335eefe89a3 (diff) | |
| download | gcc-0360f70d36156a2a537e985f09fbf675c16bda2a.zip gcc-0360f70d36156a2a537e985f09fbf675c16bda2a.tar.gz gcc-0360f70d36156a2a537e985f09fbf675c16bda2a.tar.bz2 | |
re PR rtl-optimization/47612 (RTL crash when cc0 setter moved away from cc0 user)
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.
From-SVN: r173393
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 0f398ba..e5b88e3 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; |