diff options
Diffstat (limited to 'gcc/tree-ssa-loop-niter.c')
| -rw-r--r-- | gcc/tree-ssa-loop-niter.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/gcc/tree-ssa-loop-niter.c b/gcc/tree-ssa-loop-niter.c index 470b6a2..8cf8ef9 100644 --- a/gcc/tree-ssa-loop-niter.c +++ b/gcc/tree-ssa-loop-niter.c @@ -1125,8 +1125,15 @@ number_of_iterations_ne (struct loop *loop, tree type, affine_iv *iv, } c = fold_build2 (EXACT_DIV_EXPR, niter_type, c, d); - tmp = fold_build2 (MULT_EXPR, niter_type, c, inverse (s, bound)); - niter->niter = fold_build2 (BIT_AND_EXPR, niter_type, tmp, bound); + if (integer_onep (s)) + { + niter->niter = c; + } + else + { + tmp = fold_build2 (MULT_EXPR, niter_type, c, inverse (s, bound)); + niter->niter = fold_build2 (BIT_AND_EXPR, niter_type, tmp, bound); + } return true; } |