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| author | Richard Sandiford <richard.sandiford@arm.com> | 2019-11-16 11:14:51 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2019-11-16 11:14:51 +0000 |
| commit | 2d56600c8de397d09a16dedd33d310a763a832ae (patch) | |
| tree | 56564f83914ac39ee039165188613c4b2820732e /gcc/tree-loop-distribution.c | |
| parent | 217ccab8f46ca5b260319e7b71b421daec6d11c8 (diff) | |
| download | gcc-2d56600c8de397d09a16dedd33d310a763a832ae.zip gcc-2d56600c8de397d09a16dedd33d310a763a832ae.tar.gz gcc-2d56600c8de397d09a16dedd33d310a763a832ae.tar.bz2 | |
[AArch64] Add truncation for partial SVE modes
This patch adds support for "truncating" to a partial SVE vector from
either a full SVE vector or a wider partial vector. This truncation is
actually a no-op and so should have zero cost in the vector cost model.
2019-11-16 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* config/aarch64/aarch64-sve.md
(trunc<SVE_HSDI:mode><SVE_PARTIAL_I:mode>2): New pattern.
* config/aarch64/aarch64.c (aarch64_integer_truncation_p): New
function.
(aarch64_sve_adjust_stmt_cost): Call it.
gcc/testsuite/
* gcc.target/aarch64/sve/mask_struct_load_1.c: Add
--param aarch64-sve-compare-costs=0.
* gcc.target/aarch64/sve/mask_struct_load_2.c: Likewise.
* gcc.target/aarch64/sve/mask_struct_load_3.c: Likewise.
* gcc.target/aarch64/sve/mask_struct_load_4.c: Likewise.
* gcc.target/aarch64/sve/mask_struct_load_5.c: Likewise.
* gcc.target/aarch64/sve/pack_1.c: Likewise.
* gcc.target/aarch64/sve/truncate_1.c: New test.
From-SVN: r278344
Diffstat (limited to 'gcc/tree-loop-distribution.c')
0 files changed, 0 insertions, 0 deletions