From 08298a8c195e4bf6f8e32d309de9ac7ea6ba0962 Mon Sep 17 00:00:00 2001 From: Richard Guenther Date: Thu, 21 Aug 2008 11:25:28 +0000 Subject: [PATCH] re PR tree-optimization/37181 (FAIL: Divide_1 -O3) 2008-08-21 Richard Guenther PR tree-optimization/37181 * tree-vrp.c (extract_range_from_binary_expr): Check for NULL folding result. (extract_range_from_unary_expr): Likewise. From-SVN: r139375 --- gcc/ChangeLog | 7 +++++++ gcc/tree-vrp.c | 6 ++++-- 2 files changed, 11 insertions(+), 2 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 2f3db969cf6..98a28e66174 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2008-08-21 Richard Guenther + + PR tree-optimization/37181 + * tree-vrp.c (extract_range_from_binary_expr): Check for NULL + folding result. + (extract_range_from_unary_expr): Likewise. + 2008-08-21 Manuel Lopez-Ibanez * diagnostic.c (pedwarn_at): Rename as pedwarn. diff --git a/gcc/tree-vrp.c b/gcc/tree-vrp.c index a71002fd9e4..a61f292c43f 100644 --- a/gcc/tree-vrp.c +++ b/gcc/tree-vrp.c @@ -2062,7 +2062,8 @@ extract_range_from_binary_expr (value_range_t *vr, && (op1 = op_with_constant_singleton_value_range (op1)) != NULL_TREE) { tree tem = fold_binary (code, expr_type, op0, op1); - if (is_gimple_min_invariant (tem) + if (tem + && is_gimple_min_invariant (tem) && !is_overflow_infinity (tem)) { set_value_range (vr, VR_RANGE, tem, tem, NULL); @@ -2477,7 +2478,8 @@ extract_range_from_unary_expr (value_range_t *vr, enum tree_code code, if ((op0 = op_with_constant_singleton_value_range (op0)) != NULL_TREE) { tree tem = fold_unary (code, type, op0); - if (is_gimple_min_invariant (tem) + if (tem + && is_gimple_min_invariant (tem) && !is_overflow_infinity (tem)) { set_value_range (vr, VR_RANGE, tem, tem, NULL);