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| author | Robin Dapp <rdapp@ventanamicro.com> | 2023-09-13 22:19:35 +0200 |
|---|---|---|
| committer | Robin Dapp <rdapp@ventanamicro.com> | 2023-11-02 11:48:19 +0100 |
| commit | 01c18f58d37865d5f3bbe93e666183b54ec608c7 (patch) | |
| tree | 66434b35ac66c8ecc740e1559d249b701fbee6d8 /gcc/tree-vectorizer.h | |
| parent | c05f748218a0d556972212d6aecfce0eb4c8a31c (diff) | |
| download | gcc-01c18f58d37865d5f3bbe93e666183b54ec608c7.zip gcc-01c18f58d37865d5f3bbe93e666183b54ec608c7.tar.gz gcc-01c18f58d37865d5f3bbe93e666183b54ec608c7.tar.bz2 | |
ifcvt/vect: Emit COND_OP for conditional scalar reduction.
As described in PR111401 we currently emit a COND and a PLUS expression
for conditional reductions. This makes it difficult to combine both
into a masked reduction statement later.
This patch improves that by directly emitting a COND_ADD/COND_OP during
ifcvt and adjusting some vectorizer code to handle it.
It also makes neutral_op_for_reduction return -0 if HONOR_SIGNED_ZEROS
is true.
gcc/ChangeLog:
PR middle-end/111401
* internal-fn.cc (internal_fn_else_index): New function.
* internal-fn.h (internal_fn_else_index): Define.
* tree-if-conv.cc (convert_scalar_cond_reduction): Emit COND_OP
if supported.
(predicate_scalar_phi): Add whitespace.
* tree-vect-loop.cc (fold_left_reduction_fn): Add IFN_COND_OP.
(neutral_op_for_reduction): Return -0 for PLUS.
(check_reduction_path): Don't count else operand in COND_OP.
(vect_is_simple_reduction): Ditto.
(vect_create_epilog_for_reduction): Fix whitespace.
(vectorize_fold_left_reduction): Add COND_OP handling.
(vectorizable_reduction): Don't count else operand in COND_OP.
(vect_transform_reduction): Add COND_OP handling.
* tree-vectorizer.h (neutral_op_for_reduction): Add default
parameter.
gcc/testsuite/ChangeLog:
* gcc.dg/vect/vect-cond-reduc-in-order-2-signed-zero.c: New test.
* gcc.target/riscv/rvv/autovec/cond/pr111401.c: New test.
* gcc.target/riscv/rvv/autovec/reduc/reduc_call-2.c: Adjust.
* gcc.target/riscv/rvv/autovec/reduc/reduc_call-4.c: Ditto.
Diffstat (limited to 'gcc/tree-vectorizer.h')
| -rw-r--r-- | gcc/tree-vectorizer.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/tree-vectorizer.h b/gcc/tree-vectorizer.h index a4043e4..254d172 100644 --- a/gcc/tree-vectorizer.h +++ b/gcc/tree-vectorizer.h @@ -2350,7 +2350,7 @@ extern tree vect_create_addr_base_for_vector_ref (vec_info *, tree); /* In tree-vect-loop.cc. */ -extern tree neutral_op_for_reduction (tree, code_helper, tree); +extern tree neutral_op_for_reduction (tree, code_helper, tree, bool = true); extern widest_int vect_iv_limit_for_partial_vectors (loop_vec_info loop_vinfo); bool vect_rgroup_iv_might_wrap_p (loop_vec_info, rgroup_controls *); /* Used in tree-vect-loop-manip.cc */ |