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| author | Richard Guenther <rguenther@suse.de> | 2016-05-20 09:17:16 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2016-05-20 09:17:16 +0000 |
| commit | 483c642948802336899b14fa57b2e76c760c3c36 (patch) | |
| tree | e061dbe5dac8633c8babd3bf14639f9e128c156e /gcc/tree.def | |
| parent | eb066284cb8cdf7f46f455c3e975cf1b349a0487 (diff) | |
| download | gcc-483c642948802336899b14fa57b2e76c760c3c36.zip gcc-483c642948802336899b14fa57b2e76c760c3c36.tar.gz gcc-483c642948802336899b14fa57b2e76c760c3c36.tar.bz2 | |
re PR target/29756 (SSE intrinsics hard to use without redundant temporaries appearing)
2016-05-20 Richard Guenther <rguenther@suse.de>
PR tree-optimization/29756
* tree.def (BIT_INSERT_EXPR): New tcc_expression tree code.
* expr.c (expand_expr_real_2): Handle BIT_INSERT_EXPR.
* fold-const.c (operand_equal_p): Likewise.
(fold_ternary_loc): Add constant folding of BIT_INSERT_EXPR.
* gimplify.c (gimplify_expr): Handle BIT_INSERT_EXPR.
* tree-inline.c (estimate_operator_cost): Likewise.
* tree-pretty-print.c (dump_generic_node): Likewise.
* tree-ssa-operands.c (get_expr_operands): Likewise.
* cfgexpand.c (expand_debug_expr): Likewise.
* gimple-pretty-print.c (dump_ternary_rhs): Likewise.
* gimple.c (get_gimple_rhs_num_ops): Handle BIT_INSERT_EXPR.
* tree-cfg.c (verify_gimple_assign_ternary): Verify BIT_INSERT_EXPR.
* tree-ssa.c (non_rewritable_lvalue_p): We can rewrite
vector inserts using BIT_FIELD_REF or MEM_REF on the lhs.
(execute_update_addresses_taken): Do it.
* gcc.dg/tree-ssa/vector-6.c: New testcase.
From-SVN: r236501
Diffstat (limited to 'gcc/tree.def')
| -rw-r--r-- | gcc/tree.def | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/gcc/tree.def b/gcc/tree.def index 44130d7..d16575a 100644 --- a/gcc/tree.def +++ b/gcc/tree.def @@ -852,6 +852,21 @@ DEFTREECODE (ADDR_EXPR, "addr_expr", tcc_expression, 1) descriptor of type ptr_mode. */ DEFTREECODE (FDESC_EXPR, "fdesc_expr", tcc_expression, 2) +/* Given a container value, a replacement value and a bit position within + the container, produce the value that results from replacing the part of + the container starting at the bit position with the replacement value. + Operand 0 is a tree for the container value of integral or vector type; + Operand 1 is a tree for the replacement value of another integral or + the vector element type; + Operand 2 is a tree giving the constant bit position; + The number of bits replaced is given by the precision of the type of the + replacement value if it is integral or by its size if it is non-integral. + ??? The reason to make the size of the replacement implicit is to avoid + introducing a quaternary operation. + The replaced bits shall be fully inside the container. If the container + is of vector type, then these bits shall be aligned with its elements. */ +DEFTREECODE (BIT_INSERT_EXPR, "bit_field_insert", tcc_expression, 3) + /* Given two real or integer operands of the same type, returns a complex value of the corresponding complex type. */ DEFTREECODE (COMPLEX_EXPR, "complex_expr", tcc_binary, 2) |