From 7cf5c9e1a0bb132d20abd543e7d991f2f2e51350 Mon Sep 17 00:00:00 2001 From: Bernd Schmidt Date: Fri, 24 Nov 2000 17:45:04 +0000 Subject: [PATCH] Fix crash in fold_range_test From-SVN: r37712 --- gcc/ChangeLog | 2 ++ gcc/fold-const.c | 1 + 2 files changed, 3 insertions(+) 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 + * 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)) -- 2.7.4