From 250807797b9faaf6acfb083e2ef17d7fca879447 Mon Sep 17 00:00:00 2001 From: rguenth Date: Sun, 16 Mar 2008 15:45:09 +0000 Subject: 2008-03-16 Richard Guenther PR middle-end/35607 * tree-ssa-loop-niter.c (expand_simple_operations): Do not expand TREE_INVARIANT operations that are not gimple invariant. * gcc.c-torture/compile/pr35607.c: New testcase. * gcc.dg/tree-ssa/loop-19.c: Use -O2 to avoid vectorization. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@133273 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/tree-ssa-loop-niter.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'gcc/tree-ssa-loop-niter.c') diff --git a/gcc/tree-ssa-loop-niter.c b/gcc/tree-ssa-loop-niter.c index 40e7051c265..0696342bd1b 100644 --- a/gcc/tree-ssa-loop-niter.c +++ b/gcc/tree-ssa-loop-niter.c @@ -1436,6 +1436,10 @@ expand_simple_operations (tree expr) return expr; e = GIMPLE_STMT_OPERAND (stmt, 1); + /* Do not expand random invariants. */ + if (TREE_INVARIANT (e) + && !is_gimple_min_invariant (e)) + return expr; if (/* Casts are simple. */ TREE_CODE (e) != NOP_EXPR && TREE_CODE (e) != CONVERT_EXPR -- cgit v1.2.1