diff options
| author | Alan Lawrence <alan.lawrence@arm.com> | 2014-10-28 11:17:47 +0000 |
|---|---|---|
| committer | Alan Lawrence <alalaw01@gcc.gnu.org> | 2014-10-28 11:17:47 +0000 |
| commit | e29dfbf07d93e89e92d8b95bef247fc95a8024ef (patch) | |
| tree | 815114050f368a772cb5c71599a28a3a4b7ef2ec /gcc/fold-const.c | |
| parent | fed4de37b870faad50374a63aa1cf68a97963da6 (diff) | |
| download | gcc-e29dfbf07d93e89e92d8b95bef247fc95a8024ef.zip gcc-e29dfbf07d93e89e92d8b95bef247fc95a8024ef.tar.gz gcc-e29dfbf07d93e89e92d8b95bef247fc95a8024ef.tar.bz2 | |
Remove VEC_LSHIFT_EXPR and vec_shl_optab
* expr.c (expand_expr_real_2): Remove code handling VEC_LSHIFT_EXPR.
* fold-const.c (const_binop): Likewise.
* cfgexpand.c (expand_debug_expr): Likewise.
* tree-inline.c (estimate_operator_cost): Likewise.
* tree-vect-generic.c (expand_vector_operations_1): Likewise.
* optabs.c (optab_for_tree_code): Likewise.
(expand_vec_shift_expr): Likewise, update comment.
* tree.def: Delete VEC_LSHIFT_EXPR, remove comment.
* optabs.h (expand_vec_shift_expr): Remove comment re. VEC_LSHIFT_EXPR.
* optabs.def: Remove vec_shl_optab.
* doc/md.texi: Remove references to vec_shr_m.
From-SVN: r216779
Diffstat (limited to 'gcc/fold-const.c')
| -rw-r--r-- | gcc/fold-const.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c index ba9b013..8166070 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -1415,8 +1415,7 @@ const_binop (enum tree_code code, tree arg1, tree arg2) int count = TYPE_VECTOR_SUBPARTS (type), i; tree *elts = XALLOCAVEC (tree, count); - if (code == VEC_LSHIFT_EXPR - || code == VEC_RSHIFT_EXPR) + if (code == VEC_RSHIFT_EXPR) { if (!tree_fits_uhwi_p (arg2)) return NULL_TREE; @@ -1428,11 +1427,10 @@ const_binop (enum tree_code code, tree arg1, tree arg2) if (shiftc >= outerc || (shiftc % innerc) != 0) return NULL_TREE; int offset = shiftc / innerc; - /* The direction of VEC_[LR]SHIFT_EXPR is endian dependent. - For reductions, compiler emits VEC_RSHIFT_EXPR always, - for !BYTES_BIG_ENDIAN picks first vector element, but - for BYTES_BIG_ENDIAN last element from the vector. */ - if ((code == VEC_RSHIFT_EXPR) ^ (!BYTES_BIG_ENDIAN)) + /* The direction of VEC_RSHIFT_EXPR is endian dependent. + For reductions, if !BYTES_BIG_ENDIAN then compiler picks first + vector element, but last element if BYTES_BIG_ENDIAN. */ + if (BYTES_BIG_ENDIAN) offset = -offset; tree zero = build_zero_cst (TREE_TYPE (type)); for (i = 0; i < count; i++) |