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| author | Richard Sandiford <richard.sandiford@linaro.org> | 2018-01-13 17:57:17 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2018-01-13 17:57:17 +0000 |
| commit | 779fed5fdb6098e67213a82dfd27f5b326a75e88 (patch) | |
| tree | c7d81773fba7399e72265ef818081c1fb946baa9 /gcc/fold-const.c | |
| parent | dbc3af4fc620aeb6fbf088e961fe8658bbd959c7 (diff) | |
| download | gcc-779fed5fdb6098e67213a82dfd27f5b326a75e88.zip gcc-779fed5fdb6098e67213a82dfd27f5b326a75e88.tar.gz gcc-779fed5fdb6098e67213a82dfd27f5b326a75e88.tar.bz2 | |
Fix folding of vector mask EQ/NE expressions
fold_binary_loc assumed that if the type of the result wasn't a vector,
the operands wouldn't be either. This isn't necessarily true for
EQ_EXPR and NE_EXPR of vector masks, which can return a single scalar
for the mask as a whole.
2018-01-13 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* fold-const.c (fold_binary_loc): Check the argument types
rather than the result type when testing for a vector operation.
gcc/testsuite/
* gcc.target/aarch64/sve/vec_bool_cmp_1.c: New test.
* gcc.target/aarch64/sve/vec_bool_cmp_1_run.c: Likweise.
Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>
From-SVN: r256616
Diffstat (limited to 'gcc/fold-const.c')
| -rw-r--r-- | gcc/fold-const.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c index 521c2dc..cfb1b3d 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -9323,7 +9323,7 @@ fold_binary_loc (location_t loc, enum tree_code code, tree type, if ((code == BIT_AND_EXPR || code == BIT_IOR_EXPR || code == EQ_EXPR || code == NE_EXPR) - && TREE_CODE (type) != VECTOR_TYPE + && !VECTOR_TYPE_P (TREE_TYPE (arg0)) && ((truth_value_p (TREE_CODE (arg0)) && (truth_value_p (TREE_CODE (arg1)) || (TREE_CODE (arg1) == BIT_AND_EXPR |