Hello!
Attached patch uses equivalent instruction, where HImode variant is
also enabled for plain AVX512F isa.
2018-12-19 Uros Bizjak <ubiz...@gmail.com>
* config/i386/i386.md (SWI1248_AVX512BWDQ_64): Rename from
SWI1248_AVX512BWDQ2_64. Unconditionally enable HImode.
(*cmp<mode>_ccz_1): Emit kortest instead of ktest insn.
Use SWI1248_AVX512BWDQ_64 mode iterator and enable only for
TARGET_AVX512F.
testsuite/ChangeLog:
2018-12-19 Uros Bizjak <ubiz...@gmail.com>
* gcc.target/i386/avx512dq-pr82855.c: Update scan-assembler pattern.
Bootstrapped and regression tested on x86_64-linux-gnu {,-m32}.
Committed to mailine SVN.
Uros.
Index: config/i386/i386.md
===================================================================
--- config/i386/i386.md (revision 267276)
+++ config/i386/i386.md (working copy)
@@ -1244,20 +1244,20 @@
(compare:CC (match_operand:SWI48 0 "nonimmediate_operand")
(match_operand:SWI48 1 "<general_operand>")))])
-(define_mode_iterator SWI1248_AVX512BWDQ2_64
- [(QI "TARGET_AVX512DQ") (HI "TARGET_AVX512DQ")
+(define_mode_iterator SWI1248_AVX512BWDQ_64
+ [(QI "TARGET_AVX512DQ") HI
(SI "TARGET_AVX512BW") (DI "TARGET_AVX512BW && TARGET_64BIT")])
(define_insn "*cmp<mode>_ccz_1"
[(set (reg FLAGS_REG)
- (compare (match_operand:SWI1248_AVX512BWDQ2_64 0
+ (compare (match_operand:SWI1248_AVX512BWDQ_64 0
"nonimmediate_operand" "<r>,?m<r>,$k")
- (match_operand:SWI1248_AVX512BWDQ2_64 1 "const0_operand")))]
- "ix86_match_ccmode (insn, CCZmode)"
+ (match_operand:SWI1248_AVX512BWDQ_64 1 "const0_operand")))]
+ "TARGET_AVX512F && ix86_match_ccmode (insn, CCZmode)"
"@
test{<imodesuffix>}\t%0, %0
cmp{<imodesuffix>}\t{%1, %0|%0, %1}
- ktest<mskmodesuffix>\t%0, %0"
+ kortest<mskmodesuffix>\t%0, %0"
[(set_attr "type" "test,icmp,msklog")
(set_attr "length_immediate" "0,1,*")
(set_attr "prefix" "*,*,vex")
Index: testsuite/gcc.target/i386/avx512dq-pr82855.c
===================================================================
--- testsuite/gcc.target/i386/avx512dq-pr82855.c (revision 267276)
+++ testsuite/gcc.target/i386/avx512dq-pr82855.c (working copy)
@@ -1,7 +1,7 @@
/* PR target/82855 */
/* { dg-do compile } */
/* { dg-options "-O2 -mavx512vl -mavx512dq" } */
-/* { dg-final { scan-assembler {\mktestb\M} } } */
+/* { dg-final { scan-assembler {\mkortestb\M} } } */
#include <immintrin.h>
