diff options
Diffstat (limited to 'gcc/fold-const.c')
| -rw-r--r-- | gcc/fold-const.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c index 2f0d4ace1c1..7c9a5ec99ee 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -2427,6 +2427,27 @@ operand_equal_p (arg0, arg1, only_const) && REAL_VALUES_IDENTICAL (TREE_REAL_CST (arg0), TREE_REAL_CST (arg1))); + case VECTOR_CST: + { + tree v1, v2; + + if (TREE_CONSTANT_OVERFLOW (arg0) + || TREE_CONSTANT_OVERFLOW (arg1)) + return 0; + + v1 = TREE_VECTOR_CST_ELTS (arg0); + v2 = TREE_VECTOR_CST_ELTS (arg1); + while (v1 && v2) + { + if (!operand_equal_p (v1, v2, only_const)) + return 0; + v1 = TREE_CHAIN (v1); + v2 = TREE_CHAIN (v2); + } + + return 1; + } + case COMPLEX_CST: return (operand_equal_p (TREE_REALPART (arg0), TREE_REALPART (arg1), only_const) @@ -5184,6 +5205,7 @@ fold (expr) { case INTEGER_CST: case REAL_CST: + case VECTOR_CST: case STRING_CST: case COMPLEX_CST: case CONSTRUCTOR: @@ -7586,6 +7608,23 @@ rtl_expr_nonnegative_p (r) return CONST_DOUBLE_HIGH (r) >= 0; return 0; + case CONST_VECTOR: + { + int units, i; + rtx elt; + + units = CONST_VECTOR_NUNITS (r); + + for (i = 0; i < units; ++i) + { + elt = CONST_VECTOR_ELT (r, i); + if (!rtl_expr_nonnegative_p (elt)) + return 0; + } + + return 1; + } + case SYMBOL_REF: case LABEL_REF: /* These are always nonnegative. */ |