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| author | bernds <bernds@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-07-07 15:26:48 +0000 |
|---|---|---|
| committer | bernds <bernds@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-07-07 15:26:48 +0000 |
| commit | 6416852cb041376b066d3d7c196ae7f0c80c4329 (patch) | |
| tree | 4a834c6c447e50e8b3be17c7fcfb6b4c48cfa21e | |
| parent | 275327540b92ab5e90b2beeb653097fbf133a32f (diff) | |
| download | gcc-6416852cb041376b066d3d7c196ae7f0c80c4329.tar.gz | |
PR rtl-optimization/44404
* auto-inc-dec.c (find_inc): Avoid calling count_occurrences if
possible, use reg_overlap_mentioned_p instead.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@161920 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/auto-inc-dec.c | 9 |
2 files changed, 7 insertions, 8 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 3a2fcf485d8..934cacdd755 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2010-07-07 Bernd Schmidt <bernds@codesourcery.com> + + PR rtl-optimization/44404 + * auto-inc-dec.c (find_inc): Avoid calling count_occurrences if + possible, use reg_overlap_mentioned_p instead. + 2010-07-07 Duncan Sands <baldrick@free.fr> PR middle-end/41355 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"); |