On Linux/x86_64,
7fcd3ed36c68d39b1d51137d5bdf0bd91b99be60 is the first bad commit
commit 7fcd3ed36c68d39b1d51137d5bdf0bd91b99be60
Author: Tamar Christina <[email protected]>
Date: Mon Jan 5 20:55:34 2026 +0000
vect: teach if-convert to predicate __builtin calls [PR122103]
caused
FAIL: gcc.target/i386/avx10_2-vcvtbf162ibs-2.c (internal compiler error: in
associated_internal_fn, at builtins.cc:2266)
FAIL: gcc.target/i386/avx10_2-vcvtbf162ibs-2.c (test for excess errors)
FAIL: gcc.target/i386/avx10_2-vcvtbf162iubs-2.c (internal compiler error: in
associated_internal_fn, at builtins.cc:2266)
FAIL: gcc.target/i386/avx10_2-vcvtbf162iubs-2.c (test for excess errors)
with GCC configured with
../../gcc/configure
--prefix=/export/users3/haochenj/src/gcc-bisect/master/master/r16-6510/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/avx10_2-vcvtbf162ibs-2.c
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-vcvtbf162ibs-2.c
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-vcvtbf162ibs-2.c
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-vcvtbf162ibs-2.c
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-vcvtbf162iubs-2.c
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-vcvtbf162iubs-2.c
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-vcvtbf162iubs-2.c
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-vcvtbf162iubs-2.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.)
