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| author | amylaar <amylaar@138bc75d-0d04-0410-961f-82ee72b054a4> | 1999-03-12 12:46:36 +0000 |
|---|---|---|
| committer | amylaar <amylaar@138bc75d-0d04-0410-961f-82ee72b054a4> | 1999-03-12 12:46:36 +0000 |
| commit | 94836c40d75547b472c059a361b52529952efd46 (patch) | |
| tree | 8f3f6a35966180d41285934d113acd850f972b60 /gcc/unroll.c | |
| parent | cb9ff92c0cd9c78732adca3c156ecfc975332a17 (diff) | |
| download | gcc-94836c40d75547b472c059a361b52529952efd46.tar.gz | |
* unroll.c (loop_iterations): Don't return a final value for EQ
comparison loops.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@25729 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/unroll.c')
| -rw-r--r-- | gcc/unroll.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/unroll.c b/gcc/unroll.c index 32ed5314370..e119352dc8a 100644 --- a/gcc/unroll.c +++ b/gcc/unroll.c @@ -3820,6 +3820,12 @@ loop_iterations (loop_start, loop_end, loop_info) loop_info->initial_equiv_value = initial_value; loop_info->final_equiv_value = final_value; + /* For EQ comparison loops, we don't have a valid final value. + Check this now so that we won't leave an invalid value if we + return early for any other reason. */ + if (comparison_code == EQ) + loop_info->final_equiv_value = loop_info->final_value = 0; + if (increment == 0) { if (loop_dump_stream) |