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| author | Bernd Schmidt <bernds@redhat.co.uk> | 2000-11-24 17:45:04 +0000 |
|---|---|---|
| committer | Bernd Schmidt <bernds@gcc.gnu.org> | 2000-11-24 17:45:04 +0000 |
| commit | 7cf5c9e1a0bb132d20abd543e7d991f2f2e51350 (patch) | |
| tree | c4752b2cd4a02d7beebff1142d13df82c0635c8d /gcc | |
| parent | ff6534ad165fa1e463d001240f14709327b27b1e (diff) | |
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Fix crash in fold_range_test
From-SVN: r37712
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 2 | ||||
| -rw-r--r-- | gcc/fold-const.c | 1 |
2 files changed, 3 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 2c12a96..eb50265 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,7 @@ 2000-11-24 Bernd Schmidt <bernds@redhat.co.uk> + * fold-const.c (fold_range_test): Avoid crash if LHS or RHS is null. + * reload1.c (conflicts_with_override): New function. (emit_input_reload_insns): Use it to tighten test for validity of substituting into output of previous insn. diff --git a/gcc/fold-const.c b/gcc/fold-const.c index 9284a19..aaff05f 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -3780,6 +3780,7 @@ fold_range_test (exp) short-circuited branch and the underlying object on both sides is the same, make a non-short-circuit operation. */ else if (BRANCH_COST >= 2 + && lhs != 0 && rhs != 0 && (TREE_CODE (exp) == TRUTH_ANDIF_EXPR || TREE_CODE (exp) == TRUTH_ORIF_EXPR) && operand_equal_p (lhs, rhs, 0)) |