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| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/jump.c | 6 |
2 files changed, 11 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 407065b84cc..22c5b2d1ccc 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2001-01-30 Franz Sirl <Franz.Sirl-kernel@lauterbach.com> + + * jump.c (comparison_dominates_p): Don't try to handle UNKNOWN + comparison codes. + 2001-01-30 Neil Booth <neil@daikokuya.demon.co.uk> * c-decl.c (c_expand_body): Check TYPE_SIZE_UNIT (ret_type) 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; |