[r12-4379 Regression] FAIL: gcc.target/i386/sse-26.c (test for excess errors) on Linux/x86_64

[sunil.k.pandey]

On Linux/x86_64,

97c320016642a40a347d558abc952cc487ad4ff6 is the first bad commit
commit 97c320016642a40a347d558abc952cc487ad4ff6
Author: Roger Sayle <roger@nextmovesoftware.com>
Date:   Wed Oct 13 19:49:47 2021 +0100

    x86_64: Some SUBREG related optimization tweaks to i386 backend.

caused

FAIL: gcc.target/i386/avx-1.c (internal compiler error)
FAIL: gcc.target/i386/avx-1.c (test for excess errors)
FAIL: gcc.target/i386/avx-2.c (internal compiler error)
FAIL: gcc.target/i386/avx-2.c (test for excess errors)
FAIL: gcc.target/i386/keylocker-aesdecwide128kl.c (internal compiler error)
FAIL: gcc.target/i386/keylocker-aesdecwide128kl.c (test for excess errors)
FAIL: gcc.target/i386/keylocker-aesdecwide256kl.c (internal compiler error)
FAIL: gcc.target/i386/keylocker-aesdecwide256kl.c (test for excess errors)
FAIL: gcc.target/i386/keylocker-aesencwide128kl.c (internal compiler error)
FAIL: gcc.target/i386/keylocker-aesencwide128kl.c (test for excess errors)
FAIL: gcc.target/i386/keylocker-aesencwide256kl.c (internal compiler error)
FAIL: gcc.target/i386/keylocker-aesencwide256kl.c (test for excess errors)
FAIL: gcc.target/i386/sse-13.c (internal compiler error)
FAIL: gcc.target/i386/sse-13.c (test for excess errors)
FAIL: gcc.target/i386/sse-14.c (internal compiler error)
FAIL: gcc.target/i386/sse-14.c (test for excess errors)
FAIL: gcc.target/i386/sse-22a.c (internal compiler error)
FAIL: gcc.target/i386/sse-22a.c (test for excess errors)
FAIL: gcc.target/i386/sse-22.c (internal compiler error)
FAIL: gcc.target/i386/sse-22.c (test for excess errors)
FAIL: gcc.target/i386/sse-23.c (internal compiler error)
FAIL: gcc.target/i386/sse-23.c (test for excess errors)
FAIL: gcc.target/i386/sse-24.c (internal compiler error)
FAIL: gcc.target/i386/sse-24.c (test for excess errors)
FAIL: gcc.target/i386/sse-25.c (internal compiler error)
FAIL: gcc.target/i386/sse-25.c (test for excess errors)
FAIL: gcc.target/i386/sse-26.c (internal compiler error)
FAIL: gcc.target/i386/sse-26.c (test for excess errors)

with GCC configured with

../../gcc/configure --prefix=/local/skpandey/gccwork/toolwork/gcc-bisect-master/master/r12-4379/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/avx-1.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/avx-1.c --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/avx-2.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/avx-2.c --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/keylocker-aesdecwide128kl.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/keylocker-aesdecwide128kl.c --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/keylocker-aesdecwide256kl.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/keylocker-aesdecwide256kl.c --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/keylocker-aesencwide128kl.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/keylocker-aesencwide128kl.c --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/keylocker-aesencwide256kl.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/keylocker-aesencwide256kl.c --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/sse-13.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/sse-13.c --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/sse-14.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/sse-14.c --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/sse-22a.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/sse-22a.c --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/sse-22.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/sse-22.c --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/sse-23.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/sse-23.c --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/sse-24.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/sse-24.c --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/sse-25.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/sse-25.c --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/sse-26.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/sse-26.c --target_board='unix{-m32\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me at skpgkp2 at gmail dot com)