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| author | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2011-10-06 14:28:47 +0000 |
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| committer | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2011-10-06 14:28:47 +0000 |
| commit | 649aab9e769e3d426c5527d09843d18fda03a825 (patch) | |
| tree | 4104f08e0361ce364360eb0fb8f8cae19031d493 /gcc/tree-vect-generic.c | |
| parent | 79bf7a6f28c10968ef88778a9157d0bac4d604d0 (diff) | |
| download | gcc-649aab9e769e3d426c5527d09843d18fda03a825.tar.gz | |
2011-10-06 Richard Guenther <rguenther@suse.de>
* tree-vect-generic.c (vector_element): Look at previous
generated results.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@179613 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-vect-generic.c')
| -rw-r--r-- | gcc/tree-vect-generic.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/gcc/tree-vect-generic.c b/gcc/tree-vect-generic.c index ef03b355f78..8f9f2a836d8 100644 --- a/gcc/tree-vect-generic.c +++ b/gcc/tree-vect-generic.c @@ -536,6 +536,17 @@ vector_element (gimple_stmt_iterator *gsi, tree vect, tree idx, tree *ptmpvec) idx = build_int_cst (TREE_TYPE (idx), index); } + /* When lowering a vector statement sequence do some easy + simplification by looking through intermediate vector results. */ + if (TREE_CODE (vect) == SSA_NAME) + { + gimple def_stmt = SSA_NAME_DEF_STMT (vect); + if (is_gimple_assign (def_stmt) + && (gimple_assign_rhs_code (def_stmt) == VECTOR_CST + || gimple_assign_rhs_code (def_stmt) == CONSTRUCTOR)) + vect = gimple_assign_rhs1 (def_stmt); + } + if (TREE_CODE (vect) == VECTOR_CST) { unsigned i; |