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| author | Marc Glisse <marc.glisse@inria.fr> | 2014-09-12 12:42:47 +0200 |
|---|---|---|
| committer | Marc Glisse <glisse@gcc.gnu.org> | 2014-09-12 10:42:47 +0000 |
| commit | d9a72d17e64f6a1b50ef859dadcf86551de1b265 (patch) | |
| tree | 27bbde3457695f894291e97fcc17689a975b4a96 /gcc/tree.h | |
| parent | e4a9c55ade081438460f6b0db8afbaad34b05d35 (diff) | |
| download | gcc-d9a72d17e64f6a1b50ef859dadcf86551de1b265.zip gcc-d9a72d17e64f6a1b50ef859dadcf86551de1b265.tar.gz gcc-d9a72d17e64f6a1b50ef859dadcf86551de1b265.tar.bz2 | |
tree.c (integer_each_onep): New function.
2014-09-12 Marc Glisse <marc.glisse@inria.fr>
gcc/
* tree.c (integer_each_onep): New function.
* tree.h (integer_each_onep): Declare it.
* fold-const.c (fold_binary_loc): Use it for ~A + 1 to -A and
-A - 1 to ~A. Disable (X & 1) ^ 1, (X ^ 1) & 1 and ~X & 1 to
(X & 1) == 0 for vector and complex.
gcc/testsuite/
* gcc.dg/vec-andxor1.c: New file.
From-SVN: r215209
Diffstat (limited to 'gcc/tree.h')
| -rw-r--r-- | gcc/tree.h | 5 |
1 files changed, 5 insertions, 0 deletions
@@ -3947,6 +3947,11 @@ extern int integer_zerop (const_tree); extern int integer_onep (const_tree); +/* integer_onep (tree x) is nonzero if X is an integer constant of value 1, or + a vector or complex where each part is 1. */ + +extern int integer_each_onep (const_tree); + /* integer_all_onesp (tree x) is nonzero if X is an integer constant all of whose significant bits are 1. */ |