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| author | Richard Biener <rguenther@suse.de> | 2019-05-21 12:01:00 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2019-05-21 12:01:00 +0000 |
| commit | 4f8b89f092467f9550cb2aa873c2e30ac809c08a (patch) | |
| tree | d44631d84c87d1c813dd1788c15ca29337dbdf91 /gcc/fold-const.h | |
| parent | 3b0657dce501046ebe11b7ba30653a41221f4797 (diff) | |
re PR tree-optimization/90510 (Unnecessary permutation)
2019-05-21 Richard Biener <rguenther@suse.de>
PR middle-end/90510
* fold-const.c (fold_read_from_vector): New function.
* fold-const.h (fold_read_from_vector): Declare.
* match.pd (VEC_PERM_EXPR): Build BIT_INSERT_EXPRs for
single-element insert permutations. Canonicalize selector
further and fix issue with last commit.
* gcc.target/i386/pr90510.c: New testcase.
From-SVN: r271463
Diffstat (limited to 'gcc/fold-const.h')
| -rw-r--r-- | gcc/fold-const.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/fold-const.h b/gcc/fold-const.h index c4b7cbfbdba..2a69bf9163d 100644 --- a/gcc/fold-const.h +++ b/gcc/fold-const.h @@ -100,6 +100,7 @@ extern tree fold_bit_and_mask (tree, tree, enum tree_code, tree, enum tree_code, tree, tree, tree, enum tree_code, tree, tree, tree *); extern tree fold_read_from_constant_string (tree); +extern tree fold_read_from_vector (tree, poly_uint64); #if GCC_VEC_PERN_INDICES_H extern tree fold_vec_perm (tree, tree, tree, const vec_perm_indices &); #endif |