[Bug target/97018] [11 Regression] FAIL: gcc.target/i386/l_fma_float_1.c scan-assembler-times vfnmsub[123]+ss 32 on Linux/x86_64 (-m64 -march=cascadelake)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97018 H.J. Lu changed: What|Removed |Added Status|REOPENED|RESOLVED Summary|[10/11 Regression] FAIL:|[11 Regression] FAIL: |gcc.target/i386/l_fma_float |gcc.target/i386/l_fma_float |_1.c scan-assembler-times |_1.c scan-assembler-times |vfnmsub[123]+ss 32 on |vfnmsub[123]+ss 32 on |Linux/x86_64 (-m64 |Linux/x86_64 (-m64 |-march=cascadelake) |-march=cascadelake) Resolution|--- |FIXED --- Comment #7 from H.J. Lu --- (In reply to Sunil Pandey from comment #5) > (In reply to Richard Biener from comment #1) > > Do they PASS on the GCC 10 branch? > > GCC 10 branch has same issue. Same patch should be applied to GCC 10 too. They have been failing on GCC 10 branch for a while. They aren't a recent regression. No plan to fix.
[Bug target/97018] [11 Regression] FAIL: gcc.target/i386/l_fma_float_1.c scan-assembler-times vfnmsub[123]+ss 32 on Linux/x86_64 (-m64 -march=cascadelake)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97018 H.J. Lu changed: What|Removed |Added Resolution|FIXED |--- Status|RESOLVED|REOPENED Version|11.0|10.2.0 --- Comment #6 from H.J. Lu --- GCC 10 has the same issue.
[Bug target/97018] [11 Regression] FAIL: gcc.target/i386/l_fma_float_1.c scan-assembler-times vfnmsub[123]+ss 32 on Linux/x86_64 (-m64 -march=cascadelake)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97018 --- Comment #5 from Sunil Pandey --- (In reply to Richard Biener from comment #1) > Do they PASS on the GCC 10 branch? GCC 10 branch has same issue. Same patch should be applied to GCC 10 too.
[Bug target/97018] [11 Regression] FAIL: gcc.target/i386/l_fma_float_1.c scan-assembler-times vfnmsub[123]+ss 32 on Linux/x86_64 (-m64 -march=cascadelake)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97018 H.J. Lu changed: What|Removed |Added Status|WAITING |RESOLVED Resolution|--- |FIXED --- Comment #4 from H.J. Lu --- Fixed for GCC 11.
[Bug target/97018] [11 Regression] FAIL: gcc.target/i386/l_fma_float_1.c scan-assembler-times vfnmsub[123]+ss 32 on Linux/x86_64 (-m64 -march=cascadelake)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97018 --- Comment #3 from CVS Commits --- The master branch has been updated by H.J. Lu : https://gcc.gnu.org/g:40e99ed5f4e59c6d0a8e81cd6544c9b4e7ec2fe7 commit r11-3163-g40e99ed5f4e59c6d0a8e81cd6544c9b4e7ec2fe7 Author: Sunil K Pandey Date: Thu Sep 10 23:17:59 2020 -0700 Fix fma test case [PR97018] These tests are written for 256 bit vector. For -march=cascadelake, vector size changed to 512 bit. It doubles the number of fma instruction and test fail. Fix is to explicitly disable 512 bit vector by passing additional option -mno-avx512f. Tested on x86-64. gcc/testsuite/ChangeLog: PR target/97018 * gcc.target/i386/l_fma_double_1.c: Add option -mno-avx512f. * gcc.target/i386/l_fma_double_2.c: Likewise. * gcc.target/i386/l_fma_double_3.c: Likewise. * gcc.target/i386/l_fma_double_4.c: Likewise. * gcc.target/i386/l_fma_double_5.c: Likewise. * gcc.target/i386/l_fma_double_6.c: Likewise. * gcc.target/i386/l_fma_float_1.c: Likewise. * gcc.target/i386/l_fma_float_2.c: Likewise. * gcc.target/i386/l_fma_float_3.c: Likewise. * gcc.target/i386/l_fma_float_4.c: Likewise. * gcc.target/i386/l_fma_float_5.c: Likewise. * gcc.target/i386/l_fma_float_6.c: Likewise.
[Bug target/97018] [11 Regression] FAIL: gcc.target/i386/l_fma_float_1.c scan-assembler-times vfnmsub[123]+ss 32 on Linux/x86_64 (-m64 -march=cascadelake)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97018 Hongtao.liu changed: What|Removed |Added CC||crazylht at gmail dot com --- Comment #2 from Hongtao.liu --- There's `-mtune=generic` in the testcase, which will imply 512-bit vectorization on CLX, but testcase assume 256-bit vectorization. Add `-mprefer-vector-width=256` or `-mno-avx512f`?
