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| author | Richard Sandiford <richard.sandiford@arm.com> | 2019-12-02 17:39:06 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2019-12-02 17:39:06 +0000 |
| commit | 0435b10db008e3019be0898270070eec4f3e318a (patch) | |
| tree | 96d50c1a58cb3a70e9d378758c766f97cb39ce6d /gcc/fold-const.c | |
| parent | d6098f64819e729026df0ebf0e18ac5de713e36e (diff) | |
| download | gcc-0435b10db008e3019be0898270070eec4f3e318a.zip gcc-0435b10db008e3019be0898270070eec4f3e318a.tar.gz gcc-0435b10db008e3019be0898270070eec4f3e318a.tar.bz2 | |
[AArch64] Add a couple of SVE ACLE comparison folds
When writing vector-length specific SVE code, it's useful to be able
to store an svbool_t predicate in a GNU vector of unsigned chars.
This patch makes sure that there is no overhead when converting
to that form and then immediately reading it back again.
2019-12-02 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* config/aarch64/aarch64-sve-builtins.h
(gimple_folder::force_vector): Declare.
* config/aarch64/aarch64-sve-builtins.cc
(gimple_folder::force_vector): New function.
* config/aarch64/aarch64-sve-builtins-base.cc
(svcmp_impl::fold): Likewise.
(svdup_impl::fold): Handle svdup_z too.
gcc/testsuite/
* gcc.target/aarch64/sve/acle/general/eqne_dup_1.c: New test.
* gcc.target/aarch64/sve/acle/asm/dup_f16.c (dup_0_f16_z): Expect
the call to be folded to zero.
* gcc.target/aarch64/sve/acle/asm/dup_f32.c (dup_0_f32_z): Likewise.
* gcc.target/aarch64/sve/acle/asm/dup_f64.c (dup_0_f64_z): Likewise.
* gcc.target/aarch64/sve/acle/asm/dup_s8.c (dup_0_s8_z): Likewise.
* gcc.target/aarch64/sve/acle/asm/dup_s16.c (dup_0_s16_z): Likewise.
* gcc.target/aarch64/sve/acle/asm/dup_s32.c (dup_0_s32_z): Likewise.
* gcc.target/aarch64/sve/acle/asm/dup_s64.c (dup_0_s64_z): Likewise.
* gcc.target/aarch64/sve/acle/asm/dup_u8.c (dup_0_u8_z): Likewise.
* gcc.target/aarch64/sve/acle/asm/dup_u16.c (dup_0_u16_z): Likewise.
* gcc.target/aarch64/sve/acle/asm/dup_u32.c (dup_0_u32_z): Likewise.
* gcc.target/aarch64/sve/acle/asm/dup_u64.c (dup_0_u64_z): Likewise.
From-SVN: r278907
Diffstat (limited to 'gcc/fold-const.c')
0 files changed, 0 insertions, 0 deletions