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| author | Ben Cheng <bccheng@google.com> | 2014-05-17 17:03:43 -0700 |
|---|---|---|
| committer | Ben Cheng <bccheng@google.com> | 2014-05-17 17:12:35 -0700 |
| commit | 8c493ead6366b552adee796de296936b78f34c5a (patch) | |
| tree | 4936e52fb9b84edbcd9293bd321027413d1835bf /gcc-4.9/gcc/gimple-ssa-strength-reduction.c | |
| parent | 9750bde7e561731ce8a07cdbd0165a688e74a696 (diff) | |
| download | toolchain_gcc-8c493ead6366b552adee796de296936b78f34c5a.tar.gz toolchain_gcc-8c493ead6366b552adee796de296936b78f34c5a.tar.bz2 toolchain_gcc-8c493ead6366b552adee796de296936b78f34c5a.zip | |
[4.9] Refresh GCC 4.9 to the 20140514 snapshot.
For critical bug fixes including devirtualization and codegen.
Change-Id: I8138d3dc408fc12db5eecb01d2753d39219712f2
Diffstat (limited to 'gcc-4.9/gcc/gimple-ssa-strength-reduction.c')
| -rw-r--r-- | gcc-4.9/gcc/gimple-ssa-strength-reduction.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/gcc-4.9/gcc/gimple-ssa-strength-reduction.c b/gcc-4.9/gcc/gimple-ssa-strength-reduction.c index 9ad1b4f06..cb19399bd 100644 --- a/gcc-4.9/gcc/gimple-ssa-strength-reduction.c +++ b/gcc-4.9/gcc/gimple-ssa-strength-reduction.c @@ -1114,15 +1114,18 @@ create_mul_imm_cand (gimple gs, tree base_in, tree stride_in, bool speed) X = Y * c ============================ X = (B + i') * (S * c) */ - base = base_cand->base_expr; - index = base_cand->index; temp = tree_to_double_int (base_cand->stride) * tree_to_double_int (stride_in); - stride = double_int_to_tree (TREE_TYPE (stride_in), temp); - ctype = base_cand->cand_type; - if (has_single_use (base_in)) - savings = (base_cand->dead_savings - + stmt_cost (base_cand->cand_stmt, speed)); + if (double_int_fits_to_tree_p (TREE_TYPE (stride_in), temp)) + { + base = base_cand->base_expr; + index = base_cand->index; + stride = double_int_to_tree (TREE_TYPE (stride_in), temp); + ctype = base_cand->cand_type; + if (has_single_use (base_in)) + savings = (base_cand->dead_savings + + stmt_cost (base_cand->cand_stmt, speed)); + } } else if (base_cand->kind == CAND_ADD && integer_onep (base_cand->stride)) { |