[r17-2654 Regression] FAIL: gcc.target/i386/pr54400.c scan-assembler-times haddpd 6 on Linux/x86_64
Haochen Jiang via Gcc-regression <[email protected]> Fri, 24 Jul 2026 16:01:50 +0800
| Newsgroups | gmane.comp.gcc.regression,gmane.comp.gcc.patches |
|---|---|
| Message-ID | <[email protected]> |
On Linux/x86_64, fb0838bc1073aa5f22ec38e0cca2d70d625c6d71 is the first bad commit commit fb0838bc1073aa5f22ec38e0cca2d70d625c6d71 Author: Richard Biener <[email protected]> Date: Wed Jul 15 10:37:57 2026 +0200 Support two-lane vector BB reductions without target support caused FAIL: gcc.target/i386/pr54400.c scan-assembler-not unpck FAIL: gcc.target/i386/pr54400.c scan-assembler-times haddpd 6 with GCC configured with ../../gcc/configure --prefix=/export/users3/haochenj/src/gcc-bisect/master/master/r17-2654/usr --enable-clocale=gnu --with-system-zlib --with-demangler-in-ld --with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl --enable-libmpx x86_64-linux --disable-bootstrap To reproduce: $ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/pr54400.c --target_board='unix{-m32}'" $ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/pr54400.c --target_board='unix{-m32\ -march=cascadelake}'" $ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/pr54400.c --target_board='unix{-m64}'" $ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/pr54400.c --target_board='unix{-m64\ -march=cascadelake}'" (Please directly reply to this email for question about this report.) (If you met problems with cascadelake related, disabling AVX512F in command line might save that.) (However, please make sure that there is no potential problems with AVX512.)