https://gcc.gnu.org/g:bd9f3590a3912f0a3944e22ac5034d2488c3e0b2
commit r16-4724-gbd9f3590a3912f0a3944e22ac5034d2488c3e0b2 Author: liuhongt <[email protected]> Date: Tue Oct 28 23:32:06 2025 -0700 Fix unrecognizable insn of vpdpwuud. Tighten the dot_prod expander. gcc/ChangeLog: PR target/122457 * config/i386/sse.md (VI2_AVX10_2): New mode iterator. (usdot_prod<sseunpackmodelower><mode>): Use VI2_AVX10_2 instead of VI2_AVX512F. (udot_prod<sseunpackmodelower><mode>): Ditto. gcc/testsuite/ChangeLog: * gcc.target/i386/pr122457.c: New test. Diff: --- gcc/config/i386/sse.md | 11 +++++++---- gcc/testsuite/gcc.target/i386/pr122457.c | 4 ++++ 2 files changed, 11 insertions(+), 4 deletions(-) diff --git a/gcc/config/i386/sse.md b/gcc/config/i386/sse.md index 5eba99225c49..7d91585b05d1 100644 --- a/gcc/config/i386/sse.md +++ b/gcc/config/i386/sse.md @@ -643,6 +643,9 @@ (define_mode_iterator VI2_AVX512F [(V32HI "TARGET_AVX512F") (V16HI "TARGET_AVX2") V8HI]) +(define_mode_iterator VI2_AVX10_2 + [(V32HI "TARGET_AVX10_2") (V16HI "TARGET_AVX2") V8HI]) + (define_mode_iterator VI2_AVX512VNNIBW [(V32HI "TARGET_AVX512BW || TARGET_AVX512VNNI") (V16HI "TARGET_AVX2") V8HI]) @@ -32334,8 +32337,8 @@ (define_expand "usdot_prod<sseunpackmodelower><mode>" [(match_operand:<sseunpackmode> 0 "register_operand") - (match_operand:VI2_AVX512F 1 "register_operand") - (match_operand:VI2_AVX512F 2 "register_operand") + (match_operand:VI2_AVX10_2 1 "register_operand") + (match_operand:VI2_AVX10_2 2 "register_operand") (match_operand:<sseunpackmode> 3 "register_operand")] "TARGET_AVXVNNIINT16 || TARGET_AVX10_2" { @@ -32352,8 +32355,8 @@ (define_expand "udot_prod<sseunpackmodelower><mode>" [(match_operand:<sseunpackmode> 0 "register_operand") - (match_operand:VI2_AVX512F 1 "register_operand") - (match_operand:VI2_AVX512F 2 "register_operand") + (match_operand:VI2_AVX10_2 1 "register_operand") + (match_operand:VI2_AVX10_2 2 "register_operand") (match_operand:<sseunpackmode> 3 "register_operand")] "TARGET_AVXVNNIINT16 || TARGET_AVX10_2" { diff --git a/gcc/testsuite/gcc.target/i386/pr122457.c b/gcc/testsuite/gcc.target/i386/pr122457.c new file mode 100644 index 000000000000..dc57fb207a12 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pr122457.c @@ -0,0 +1,4 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -march=x86-64-v4 -mavxvnniint16" } */ + +#include "vnniint16-auto-vectorize-2.c"
