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Diffstat (limited to 'gcc/tree-ssa-math-opts.cc')
| -rw-r--r-- | gcc/tree-ssa-math-opts.cc | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/gcc/tree-ssa-math-opts.cc b/gcc/tree-ssa-math-opts.cc index b2764d4..d2b7129 100644 --- a/gcc/tree-ssa-math-opts.cc +++ b/gcc/tree-ssa-math-opts.cc @@ -5558,9 +5558,12 @@ math_opts_dom_walker::after_dom_children (basic_block bb) case PLUS_EXPR: case MINUS_EXPR: - if (!convert_plusminus_to_widen (&gsi, stmt, code) - && !match_arith_overflow (&gsi, stmt, code, m_cfg_changed_p)) - match_uaddc_usubc (&gsi, stmt, code); + if (!convert_plusminus_to_widen (&gsi, stmt, code)) + { + match_arith_overflow (&gsi, stmt, code, m_cfg_changed_p); + if (gsi_stmt (gsi) == stmt) + match_uaddc_usubc (&gsi, stmt, code); + } break; case BIT_NOT_EXPR: |