https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93136
--- Comment #6 from CVS Commits ---
The releases/gcc-9 branch has been updated by Kewen Lin :
https://gcc.gnu.org/g:8c18220564f8372f4d45ed1a4df3fc7f71928654
commit r9-8843-g8c18220564f8372f4d45ed1a4df3fc7f71928654
Author: Kewen Lin
Date: Tue Sep 1 21:12:32 2020 -0500
rs6000: Backport fixes for PR92923 and PR93136
This patch is to backport the fix for PR92923 and its sequent fix
for PR93136. We found the builtin functions needlessly using
VIEW_CONVERT_EXPRs on their operands can probably cause remarkable
performance degradation especailly when they are used in the hotspot.
One typical case is
...github.com/antonblanchard/crc32-vpmsum/blob/master/vec_crc32.c
With this patch, the execution time can improve 47.81%.
Apart from the original fixes, this patch also gets two cases below
updated. During the regression testing I found two cases failed due
to icf optimization able to be adopted with this patch, the function
bodies use tail calls, the expected assembly instructions are gone.
gcc.target/powerpc/fold-vec-logical-ands-longlong.c
gcc.target/powerpc/fold-vec-logical-ors-longlong.c
Bootstrapped/regtested on powerpc64{,le}-linux-gnu P8.
2019-12-30 Peter Bergner
gcc/ChangeLog
PR target/92923
* config/rs6000/rs6000-builtin.def (VAND, VANDC, VNOR, VOR, VXOR):
Delete.
(EQV_V16QI_UNS, EQV_V8HI_UNS, EQV_V4SI_UNS, EQV_V2DI_UNS,
EQV_V1TI_UNS,
NAND_V16QI_UNS, NAND_V8HI_UNS, NAND_V4SI_UNS, NAND_V2DI_UNS,
NAND_V1TI_UNS, ORC_V16QI_UNS, ORC_V8HI_UNS, ORC_V4SI_UNS,
ORC_V2DI_UNS,
ORC_V1TI_UNS, VAND_V16QI_UNS, VAND_V16QI, VAND_V8HI_UNS, VAND_V8HI,
VAND_V4SI_UNS, VAND_V4SI, VAND_V2DI_UNS, VAND_V2DI, VAND_V4SF,
VAND_V2DF, VANDC_V16QI_UNS, VANDC_V16QI, VANDC_V8HI_UNS,
VANDC_V8HI,
VANDC_V4SI_UNS, VANDC_V4SI, VANDC_V2DI_UNS, VANDC_V2DI, VANDC_V4SF,
VANDC_V2DF, VNOR_V16QI_UNS, VNOR_V16QI, VNOR_V8HI_UNS, VNOR_V8HI,
VNOR_V4SI_UNS, VNOR_V4SI, VNOR_V2DI_UNS, VNOR_V2DI, VNOR_V4SF,
VNOR_V2DF, VOR_V16QI_UNS, VOR_V16QI, VOR_V8HI_UNS, VOR_V8HI,
VOR_V4SI_UNS, VOR_V4SI, VOR_V2DI_UNS, VOR_V2DI, VOR_V4SF, VOR_V2DF,
VXOR_V16QI_UNS, VXOR_V16QI, VXOR_V8HI_UNS, VXOR_V8HI,
VXOR_V4SI_UNS, VXOR_V4SI, VXOR_V2DI_UNS, VXOR_V2DI, VXOR_V4SF,
VXOR_V2DF): Add definitions.
* config/rs6000/rs6000-c.c (altivec_overloaded_builtins)
: Remove.
: Add
definitions.
: Change unsigned usages to use the new *_UNS
definition names.
* config/rs6000/rs6000.c
(rs6000_gimple_fold_builtin) : Use new definition names.
(builtin_function_type) : Handle
unsigned
builtins.
2019-12-30 Peter Bergner
2020-02-08 Peter Bergner
gcc/testsuite/ChangeLog
* gcc.target/powerpc/fold-vec-logical-ands-longlong.c: Adjust.
* gcc.target/powerpc/fold-vec-logical-ors-longlong.c: Likewise.
PR target/92923
* gcc.target/powerpc/pr92923-1.c: New test.
* gcc.target/powerpc/pr92923-2.c: Likewise.
PR target/93136
* gcc.dg/vmx/ops.c: Add -flax-vector-conversions to dg-options.
* gcc.target/powerpc/vsx-vector-6.h: Split tests into smaller
functions.
* gcc.target/powerpc/vsx-vector-6.p7.c: Adjust scan-assembler-times
regex directives. Adjust expected instruction counts.
* gcc.target/powerpc/vsx-vector-6.p8.c: Likewise.
* gcc.target/powerpc/vsx-vector-6.p9.c: Likewise.
(cherry picked from commit 4559be2358020714ec7521c80589992716d23035)
(cherry picked from commit 4b39d801b2698d0f756231f6f8fa0be5a36f0c05)
