diff options
Diffstat (limited to 'gcc/gimple-ssa-strength-reduction.c')
| -rw-r--r-- | gcc/gimple-ssa-strength-reduction.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/gcc/gimple-ssa-strength-reduction.c b/gcc/gimple-ssa-strength-reduction.c index 78eed1cf87c..739a0dd0c8c 100644 --- a/gcc/gimple-ssa-strength-reduction.c +++ b/gcc/gimple-ssa-strength-reduction.c @@ -508,7 +508,8 @@ find_phi_def (tree base) c = base_cand_from_table (base); - if (!c || c->kind != CAND_PHI) + if (!c || c->kind != CAND_PHI + || SSA_NAME_OCCURS_IN_ABNORMAL_PHI (gimple_phi_result (c->cand_stmt))) return 0; return c->cand_num; @@ -546,6 +547,11 @@ find_basis_for_base_expr (slsr_cand_t c, tree base_expr) gimple_bb (one_basis->cand_stmt))) continue; + tree lhs = gimple_assign_lhs (one_basis->cand_stmt); + if (lhs && TREE_CODE (lhs) == SSA_NAME + && SSA_NAME_OCCURS_IN_ABNORMAL_PHI (lhs)) + continue; + if (!basis || basis->cand_num < one_basis->cand_num) basis = one_basis; } |