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| author | Franz Sirl <Franz.Sirl-kernel@lauterbach.com> | 2001-01-30 19:34:41 +0000 |
|---|---|---|
| committer | Franz Sirl <sirl@gcc.gnu.org> | 2001-01-30 19:34:41 +0000 |
| commit | 1e738f74b939e1330310b7f4f1e489ab7e868c07 (patch) | |
| tree | 5d71ae5fac832e634ca137c2ab24db28bff7fb66 /gcc/jump.c | |
| parent | e9770d5120e4f26b56d820ceb363497e3c724297 (diff) | |
| download | gcc-1e738f74b939e1330310b7f4f1e489ab7e868c07.tar.gz | |
jump.c (comparison_dominates_p): Don't try to handle UNKNOWN comparison codes.
2001-01-30 Franz Sirl <Franz.Sirl-kernel@lauterbach.com>
* jump.c (comparison_dominates_p): Don't try to handle UNKNOWN
comparison codes.
From-SVN: r39353
Diffstat (limited to 'gcc/jump.c')
| -rw-r--r-- | gcc/jump.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/jump.c b/gcc/jump.c index ff2ab146d97..6e1601400f6 100644 --- a/gcc/jump.c +++ b/gcc/jump.c @@ -2087,6 +2087,12 @@ int comparison_dominates_p (code1, code2) enum rtx_code code1, code2; { + /* UNKNOWN comparison codes can happen as a result of trying to revert + comparison codes. + They can't match anything, so we have to reject them here. */ + if (code1 == UNKNOWN || code2 == UNKNOWN) + return 0; + if (code1 == code2) return 1; |