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| author | Richard Sandiford <richard.sandiford@arm.com> | 2018-08-02 10:48:42 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2018-08-02 10:48:42 +0000 |
| commit | a451882123524de1b9b175af97a1cdd32e5f25c1 (patch) | |
| tree | fe9c8181de8fc36ce8b02190fa468fdbf4ba4939 /gcc/genopinit.c | |
| parent | 363b395bad6e45bb5d6e4924ff4f49400653f011 (diff) | |
| download | gcc-a451882123524de1b9b175af97a1cdd32e5f25c1.zip gcc-a451882123524de1b9b175af97a1cdd32e5f25c1.tar.gz gcc-a451882123524de1b9b175af97a1cdd32e5f25c1.tar.bz2 | |
[AArch64] Add support for 16-bit FMOV immediates
aarch64_float_const_representable_p was still returning false for
HFmode, so we wouldn't use 16-bit FMOV immediate. E.g. before the
patch:
__fp16 foo (void) { return 0x1.1p-3; }
gave:
mov w0, 12352
fmov h0, w0
with -march=armv8.2-a+fp16, whereas now it gives:
fmov h0, 1.328125e-1
2018-08-02 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* config/aarch64/aarch64.c (aarch64_float_const_representable_p):
Allow HFmode constants if TARGET_FP_F16INST.
gcc/testsuite/
* gcc.target/aarch64/f16_mov_immediate_1.c: Expect fmov immediate
to be used.
* gcc.target/aarch64/f16_mov_immediate_2.c: Likewise.
* gcc.target/aarch64/f16_mov_immediate_3.c: Force +nofp16.
* gcc.target/aarch64/sve/single_1.c: Except fmov immediate to be used
for .h.
* gcc.target/aarch64/sve/single_2.c: Likewise.
* gcc.target/aarch64/sve/single_3.c: Likewise.
* gcc.target/aarch64/sve/single_4.c: Likewise.
From-SVN: r263250
Diffstat (limited to 'gcc/genopinit.c')
0 files changed, 0 insertions, 0 deletions