On Fri, Feb 13, 2026 at 7:32 PM Haochen Jiang <[email protected]> wrote: > > On Linux/x86_64, > > b960a57e1b00390c2ca9ff1406b72232d379a322 is the first bad commit > commit b960a57e1b00390c2ca9ff1406b72232d379a322 > Author: Andrew Pinski <[email protected]> > Date: Thu Feb 12 20:36:33 2026 -0800 > > forwprop: Add copy prop for aggregates into a return [PR95825] > > caused > > FAIL: gcc.dg/tree-ssa/copy-prop-aggregate-return-1.c scan-tree-dump-times > forwprop1 "after previous" 1 > > with GCC configured with > > ../../gcc/configure > --prefix=/export/users3/haochenj/src/gcc-bisect/master/master/r16-7504/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="tree-ssa.exp=gcc.dg/tree-ssa/copy-prop-aggregate-return-1.c > --target_board='unix{-m32}'" > $ cd {build_dir}/gcc && make check > RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/copy-prop-aggregate-return-1.c > --target_board='unix{-m32\ -march=cascadelake}'"
I could not figure out how to get a testcase that works on ia32 so I limited the testcase instead to x86_64 and aarch64 because I know there are other targets where this could fail for too and it was easier to limit it to a few targets where it would work. Thanks, Andrew > > (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.)
