diff options
| author | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2006-09-05 08:34:00 +0000 |
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| committer | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2006-09-05 08:34:00 +0000 |
| commit | bb8a97154cde6c47e64fb2792cec802e97e23398 (patch) | |
| tree | 80e10e34889c4b3bd7379e99b91ee8e73923b945 /gcc/tree-ssa-ccp.c | |
| parent | 59c36c3e2b60bfcc2965602efc73e548dc03516e (diff) | |
| download | gcc-bb8a97154cde6c47e64fb2792cec802e97e23398.tar.gz | |
2006-09-05 Richard Guenther <rguenther@suse.de>
PR middle-end/28935
* tree-ssa-ccp.c (fold_stmt_r): Make sure to fold the condition
of a COND_EXPR.
* gcc.dg/pr28935.c: New testcase.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@116695 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-ssa-ccp.c')
| -rw-r--r-- | gcc/tree-ssa-ccp.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/gcc/tree-ssa-ccp.c b/gcc/tree-ssa-ccp.c index 53050e68429..8c31a861a8b 100644 --- a/gcc/tree-ssa-ccp.c +++ b/gcc/tree-ssa-ccp.c @@ -2043,6 +2043,18 @@ fold_stmt_r (tree *expr_p, int *walk_subtrees, void *data) t = maybe_fold_tmr (expr); break; + case COND_EXPR: + if (COMPARISON_CLASS_P (TREE_OPERAND (expr, 0))) + { + tree op0 = TREE_OPERAND (expr, 0); + tree tem = fold_binary (TREE_CODE (op0), TREE_TYPE (op0), + TREE_OPERAND (op0, 0), TREE_OPERAND (op0, 1)); + if (tem && is_gimple_condexpr (tem)) + TREE_OPERAND (expr, 0) = tem; + t = expr; + break; + } + default: return NULL_TREE; } |