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| author | Bernd Schmidt <bernds@codesourcery.com> | 2010-07-07 15:26:48 +0000 |
|---|---|---|
| committer | Bernd Schmidt <bernds@gcc.gnu.org> | 2010-07-07 15:26:48 +0000 |
| commit | 71df5a7ee7f86ce0954a86e375e523906ea4203a (patch) | |
| tree | 4a834c6c447e50e8b3be17c7fcfb6b4c48cfa21e /gcc/auto-inc-dec.c | |
| parent | f625098e0c1b2cbb0abc21b760b3fd4a1fb3d22b (diff) | |
| download | gcc-71df5a7ee7f86ce0954a86e375e523906ea4203a.tar.gz | |
re PR rtl-optimization/44404 (auto-inc-dec generates an invalid assembly instruction)
PR rtl-optimization/44404
* auto-inc-dec.c (find_inc): Avoid calling count_occurrences if
possible, use reg_overlap_mentioned_p instead.
From-SVN: r161920
Diffstat (limited to 'gcc/auto-inc-dec.c')
| -rw-r--r-- | gcc/auto-inc-dec.c | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/gcc/auto-inc-dec.c b/gcc/auto-inc-dec.c index 94dffc95eb2..20083ad1f83 100644 --- a/gcc/auto-inc-dec.c +++ b/gcc/auto-inc-dec.c @@ -1068,14 +1068,7 @@ find_inc (bool first_try) /* For the post_add to work, the result_reg of the inc must not be used in the mem insn since this will become the new index register. */ - if (count_occurrences (PATTERN (mem_insn.insn), inc_insn.reg_res, 1) == 0 - && reg_overlap_mentioned_p (inc_insn.reg_res, PATTERN (mem_insn.insn))) - { - debug_rtx (mem_insn.insn); - debug_rtx (inc_insn.reg_res); - gcc_unreachable (); - } - if (count_occurrences (PATTERN (mem_insn.insn), inc_insn.reg_res, 1) != 0) + if (reg_overlap_mentioned_p (inc_insn.reg_res, PATTERN (mem_insn.insn))) { if (dump_file) fprintf (dump_file, "base reg replacement failure.\n"); |