diff options
Diffstat (limited to 'gcc-4.8/gcc/graphite-scop-detection.c')
| -rw-r--r-- | gcc-4.8/gcc/graphite-scop-detection.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/gcc-4.8/gcc/graphite-scop-detection.c b/gcc-4.8/gcc/graphite-scop-detection.c index ab2897d5c..2cc7dd46c 100644 --- a/gcc-4.8/gcc/graphite-scop-detection.c +++ b/gcc-4.8/gcc/graphite-scop-detection.c @@ -203,7 +203,14 @@ graphite_can_represent_scev (tree scev) switch (TREE_CODE (scev)) { + case NEGATE_EXPR: + case BIT_NOT_EXPR: + CASE_CONVERT: + case NON_LVALUE_EXPR: + return graphite_can_represent_scev (TREE_OPERAND (scev, 0)); + case PLUS_EXPR: + case POINTER_PLUS_EXPR: case MINUS_EXPR: return graphite_can_represent_scev (TREE_OPERAND (scev, 0)) && graphite_can_represent_scev (TREE_OPERAND (scev, 1)); @@ -225,13 +232,15 @@ graphite_can_represent_scev (tree scev) if (!evolution_function_right_is_integer_cst (scev) || !graphite_can_represent_init (scev)) return false; + return graphite_can_represent_scev (CHREC_LEFT (scev)); default: break; } /* Only affine functions can be represented. */ - if (!scev_is_linear_expression (scev)) + if (tree_contains_chrecs (scev, NULL) + || !scev_is_linear_expression (scev)) return false; return true; @@ -330,13 +339,10 @@ stmt_simple_for_scop_p (basic_block scop_entry, loop_p outermost_loop, case GIMPLE_COND: { - tree op; - ssa_op_iter op_iter; - enum tree_code code = gimple_cond_code (stmt); - /* We can handle all binary comparisons. Inequalities are also supported as they can be represented with union of polyhedra. */ + enum tree_code code = gimple_cond_code (stmt); if (!(code == LT_EXPR || code == GT_EXPR || code == LE_EXPR @@ -345,11 +351,14 @@ stmt_simple_for_scop_p (basic_block scop_entry, loop_p outermost_loop, || code == NE_EXPR)) return false; - FOR_EACH_SSA_TREE_OPERAND (op, stmt, op_iter, SSA_OP_ALL_USES) + for (unsigned i = 0; i < 2; ++i) + { + tree op = gimple_op (stmt, i); if (!graphite_can_represent_expr (scop_entry, loop, op) /* We can not handle REAL_TYPE. Failed for pr39260. */ || TREE_CODE (TREE_TYPE (op)) == REAL_TYPE) return false; + } return true; } |