diff options
Diffstat (limited to 'gcc-4.9/gcc/tree-ssa-loop-niter.c')
| -rw-r--r-- | gcc-4.9/gcc/tree-ssa-loop-niter.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/tree-ssa-loop-niter.c b/gcc-4.9/gcc/tree-ssa-loop-niter.c index 62175f344..8fb72b6a5 100644 --- a/gcc-4.9/gcc/tree-ssa-loop-niter.c +++ b/gcc-4.9/gcc/tree-ssa-loop-niter.c @@ -1636,6 +1636,9 @@ expand_simple_operations (tree expr) case PLUS_EXPR: case MINUS_EXPR: + if (TYPE_OVERFLOW_TRAPS (TREE_TYPE (expr))) + return expr; + /* Fallthru. */ case POINTER_PLUS_EXPR: /* And increments and decrements by a constant are simple. */ e1 = gimple_assign_rhs2 (stmt); |