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Diffstat (limited to 'gcc/fold-const.c')
| -rw-r--r-- | gcc/fold-const.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c index aea7a65..2c822b5 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -7883,7 +7883,9 @@ fold_unary (enum tree_code code, tree type, tree op0) transformation effectively doesn't preserve non-maximal ranges. */ if (TREE_CODE (type) == INTEGER_TYPE && TREE_CODE (op0) == BIT_AND_EXPR - && TREE_CODE (TREE_OPERAND (op0, 1)) == INTEGER_CST) + && TREE_CODE (TREE_OPERAND (op0, 1)) == INTEGER_CST + /* Not if the conversion is to the sub-type. */ + && TREE_TYPE (type) != TREE_TYPE (op0)) { tree and = op0; tree and0 = TREE_OPERAND (and, 0), and1 = TREE_OPERAND (and, 1); |