diff options
| author | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2011-03-30 12:36:18 +0000 |
|---|---|---|
| committer | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2011-03-30 12:36:18 +0000 |
| commit | 51f5794ef7b5dae3138387a40ea52fba975a6251 (patch) | |
| tree | e7880e3c3edf324e2b6001c06571ddb2f5245a1c /gcc/fold-const.c | |
| parent | 1513fa8851a2ccebe5dff5699ba7ad430bf0c3ad (diff) | |
| download | ppe42-gcc-51f5794ef7b5dae3138387a40ea52fba975a6251.tar.gz ppe42-gcc-51f5794ef7b5dae3138387a40ea52fba975a6251.zip | |
PR c/48305
* fold-const.c (fold_binary_loc) <case EQ_EXPR, NE_EXPR>: Make sure
arg10/arg11 in (X ^ Y) == (Z ^ W) are always fold converted to
matching arg00/arg01 types.
* gcc.c-torture/compile/pr48305.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@171723 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/fold-const.c')
| -rw-r--r-- | gcc/fold-const.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c index 017aa8ad9cb..0c0420d043c 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -12606,13 +12606,21 @@ fold_binary_loc (location_t loc, operand_equal_p guarantees no side-effects so we don't need to use omit_one_operand on Z. */ if (operand_equal_p (arg01, arg11, 0)) - return fold_build2_loc (loc, code, type, arg00, arg10); + return fold_build2_loc (loc, code, type, arg00, + fold_convert_loc (loc, TREE_TYPE (arg00), + arg10)); if (operand_equal_p (arg01, arg10, 0)) - return fold_build2_loc (loc, code, type, arg00, arg11); + return fold_build2_loc (loc, code, type, arg00, + fold_convert_loc (loc, TREE_TYPE (arg00), + arg11)); if (operand_equal_p (arg00, arg11, 0)) - return fold_build2_loc (loc, code, type, arg01, arg10); + return fold_build2_loc (loc, code, type, arg01, + fold_convert_loc (loc, TREE_TYPE (arg01), + arg10)); if (operand_equal_p (arg00, arg10, 0)) - return fold_build2_loc (loc, code, type, arg01, arg11); + return fold_build2_loc (loc, code, type, arg01, + fold_convert_loc (loc, TREE_TYPE (arg01), + arg11)); /* Optimize (X ^ C1) op (Y ^ C2) as (X ^ (C1 ^ C2)) op Y. */ if (TREE_CODE (arg01) == INTEGER_CST |
