diff options
Diffstat (limited to 'gcc/tree-ssa-reassoc.c')
| -rw-r--r-- | gcc/tree-ssa-reassoc.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/gcc/tree-ssa-reassoc.c b/gcc/tree-ssa-reassoc.c index 4a796f4..36ef86c 100644 --- a/gcc/tree-ssa-reassoc.c +++ b/gcc/tree-ssa-reassoc.c @@ -605,7 +605,18 @@ is_reassociable_op (gimple *stmt, enum tree_code code, struct loop *loop) if (is_gimple_assign (stmt) && gimple_assign_rhs_code (stmt) == code && has_single_use (gimple_assign_lhs (stmt))) - return true; + { + tree rhs1 = gimple_assign_rhs1 (stmt); + tree rhs2 = gimple_assign_rhs1 (stmt); + if (TREE_CODE (rhs1) == SSA_NAME + && SSA_NAME_OCCURS_IN_ABNORMAL_PHI (rhs1)) + return false; + if (rhs2 + && TREE_CODE (rhs2) == SSA_NAME + && SSA_NAME_OCCURS_IN_ABNORMAL_PHI (rhs2)) + return false; + return true; + } return false; } @@ -4989,6 +5000,8 @@ static bool can_reassociate_p (tree op) { tree type = TREE_TYPE (op); + if (TREE_CODE (op) == SSA_NAME && SSA_NAME_OCCURS_IN_ABNORMAL_PHI (op)) + return false; if ((ANY_INTEGRAL_TYPE_P (type) && TYPE_OVERFLOW_WRAPS (type)) || NON_SAT_FIXED_POINT_TYPE_P (type) || (flag_associative_math && FLOAT_TYPE_P (type))) |