diff options
Diffstat (limited to 'gcc/fold-const.c')
| -rw-r--r-- | gcc/fold-const.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c index 3ee2bc7..1ccea7e 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -2391,10 +2391,21 @@ operand_equal_p (tree arg0, tree arg1, unsigned int flags) { case '1': /* Two conversions are equal only if signedness and modes match. */ - if ((TREE_CODE (arg0) == NOP_EXPR || TREE_CODE (arg0) == CONVERT_EXPR) - && (TYPE_UNSIGNED (TREE_TYPE (arg0)) - != TYPE_UNSIGNED (TREE_TYPE (arg1)))) - return 0; + switch (TREE_CODE (arg0)) + { + case NOP_EXPR: + case CONVERT_EXPR: + case FIX_CEIL_EXPR: + case FIX_TRUNC_EXPR: + case FIX_FLOOR_EXPR: + case FIX_ROUND_EXPR: + if (TYPE_UNSIGNED (TREE_TYPE (arg0)) + != TYPE_UNSIGNED (TREE_TYPE (arg1))) + return 0; + break; + default: + break; + } return operand_equal_p (TREE_OPERAND (arg0, 0), TREE_OPERAND (arg1, 0), flags); |