diff options
| author | Lucas Mateus Castro (alqotel) <lucas.araujo@eldorado.org.br> | 2022-10-19 09:50:31 -0300 |
|---|---|---|
| committer | Daniel Henrique Barboza <danielhb413@gmail.com> | 2022-10-28 13:15:22 -0300 |
| commit | 611bc69bf6bc6b23e91e4798c036b941c9958b40 (patch) | |
| tree | 33d07bc1d020df4429a9a222086b726bc930db97 /target/ppc/translate/vmx-ops.c.inc | |
| parent | 306e4753354378213eddf6f4e6335ffc68186d1f (diff) | |
| download | qemu-611bc69bf6bc6b23e91e4798c036b941c9958b40.zip qemu-611bc69bf6bc6b23e91e4798c036b941c9958b40.tar.gz qemu-611bc69bf6bc6b23e91e4798c036b941c9958b40.tar.bz2 | |
target/ppc: Move V(ADD|SUB)CUW to decodetree and use gvec
This patch moves VADDCUW and VSUBCUW to decodtree with gvec using an
implementation based on the helper, with the main difference being
changing the -1 (aka all bits set to 1) result returned by cmp when
true to +1. It also implemented a .fni4 version of those instructions
and dropped the helper.
vaddcuw:
rept loop master patch
8 12500 0,01008200 0,00612400 (-39.3%)
25 4000 0,01091500 0,00471600 (-56.8%)
100 1000 0,01332500 0,00593700 (-55.4%)
500 200 0,01998500 0,01275700 (-36.2%)
2500 40 0,04704300 0,04364300 (-7.2%)
8000 12 0,10748200 0,11241000 (+4.6%)
vsubcuw:
rept loop master patch
8 12500 0,01226200 0,00571600 (-53.4%)
25 4000 0,01493500 0,00462100 (-69.1%)
100 1000 0,01522700 0,00455100 (-70.1%)
500 200 0,02384600 0,01133500 (-52.5%)
2500 40 0,04935200 0,03178100 (-35.6%)
8000 12 0,09039900 0,09440600 (+4.4%)
Overall there was a gain in performance, but the TCGop code was still
slightly bigger in the new version (it went from 4 to 5).
Signed-off-by: Lucas Mateus Castro (alqotel) <lucas.araujo@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221019125040.48028-4-lucas.araujo@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Diffstat (limited to 'target/ppc/translate/vmx-ops.c.inc')
| -rw-r--r-- | target/ppc/translate/vmx-ops.c.inc | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/target/ppc/translate/vmx-ops.c.inc b/target/ppc/translate/vmx-ops.c.inc index 7cd9d40..ded0234 100644 --- a/target/ppc/translate/vmx-ops.c.inc +++ b/target/ppc/translate/vmx-ops.c.inc @@ -106,12 +106,11 @@ GEN_VXFORM_300(vsrv, 2, 28), GEN_VXFORM_300(vslv, 2, 29), GEN_VXFORM(vslo, 6, 16), GEN_VXFORM(vsro, 6, 17), -GEN_VXFORM(vaddcuw, 0, 6), GEN_HANDLER_E_2(vprtybw, 0x4, 0x1, 0x18, 8, 0, PPC_NONE, PPC2_ISA300), GEN_HANDLER_E_2(vprtybd, 0x4, 0x1, 0x18, 9, 0, PPC_NONE, PPC2_ISA300), GEN_HANDLER_E_2(vprtybq, 0x4, 0x1, 0x18, 10, 0, PPC_NONE, PPC2_ISA300), -GEN_VXFORM_DUAL(vsubcuw, xpnd04_1, 0, 22, PPC_ALTIVEC, PPC_NONE), +GEN_VXFORM(xpnd04_1, 0, 22), GEN_VXFORM_300(bcdsr, 0, 23), GEN_VXFORM_300(bcdsr, 0, 31), GEN_VXFORM_DUAL(vaddubs, vmul10uq, 0, 8, PPC_ALTIVEC, PPC_NONE), |