[Bug target/83289] New: [8 regression] i386/sse2-init-v2di-2.c, i386/avx256-unaligned-load-1.c, i386/avx256-unaligned-store-*.c fails

["andrey.y.guskov at intel dot com" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83289

            Bug ID: 83289
           Summary: [8 regression] i386/sse2-init-v2di-2.c,
                    i386/avx256-unaligned-load-1.c,
                    i386/avx256-unaligned-store-*.c fails
           Product: gcc
           Version: 8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: andrey.y.guskov at intel dot com
  Target Milestone: ---

r255348 triggers these fails:

---
spawn -ignore SIGHUP /work/gcc/xgcc -B/work/gcc/
/source/gcc/testsuite/gcc.target/i386/sse2-init-v2di-2.c
-B/work/x86_64-pc-linux-gnu/./libmpx/
-B/work/x86_64-pc-linux-gnu/./libmpx/mpxrt
-L/work/x86_64-pc-linux-gnu/./libmpx/mpxrt/.libs
-B/work/x86_64-pc-linux-gnu/./libmpx/
-B/work/x86_64-pc-linux-gnu/./libmpx/mpxwrap
-L/work/x86_64-pc-linux-gnu/./libmpx/mpxwrap/.libs -fno-diagnostics-show-caret
-fdiagnostics-color=never -O2 -msse4 -march=core2 -dp -ffat-lto-objects -S -o
sse2-init-v2di-2.s
PASS: gcc.target/i386/sse2-init-v2di-2.c (test for excess errors)
FAIL: gcc.target/i386/sse2-init-v2di-2.c scan-assembler-times vec_concatv2di/5
1 (found 0 times)

---
spawn -ignore SIGHUP /work/gcc/xgcc -B/work/gcc/
/source/gcc/testsuite/gcc.target/i386/avx256-unaligned-load-1.c
-B/work/x86_64-pc-linux-gnu/./libmpx/
-B/work/x86_64-pc-linux-gnu/./libmpx/mpxrt
-L/work/x86_64-pc-linux-gnu/./libmpx/mpxrt/.libs
-B/work/x86_64-pc-linux-gnu/./libmpx/
-B/work/x86_64-pc-linux-gnu/./libmpx/mpxwrap
-L/work/x86_64-pc-linux-gnu/./libmpx/mpxwrap/.libs -fno-diagnostics-show-caret
-fdiagnostics-color=never -O3 -dp -mavx -mavx256-split-unaligned-load
-mno-prefer-avx128 -ffat-lto-objects -S -o avx256-unaligned-load-1.s
PASS: gcc.target/i386/avx256-unaligned-load-1.c (test for excess errors)
FAIL: gcc.target/i386/avx256-unaligned-load-1.c scan-assembler-not
vmovups[^]*movv8sf_internal/3

---
spawn -ignore SIGHUP /work/gcc/xgcc -B/work/gcc/
/source/gcc/testsuite/gcc.target/i386/avx256-unaligned-store-1.c
-B/work/x86_64-pc-linu
x-gnu/./libmpx/ -B/work/x86_64-pc-linux-gnu/./libmpx/mpxrt
-L/work/x86_64-pc-linux-gnu/./libmpx/mpxrt/.libs -B/work/x86_64-pc-linux-gnu/
./libmpx/ -B/work/x86_64-pc-linux-gnu/./libmpx/mpxwrap
-L/work/x86_64-pc-linux-gnu/./libmpx/mpxwrap/.libs -fno-diagnostics-show-caret
-f
diagnostics-color=never -O3 -dp -mavx -mavx256-split-unaligned-store
-mno-prefer-avx128 -fno-common -ffat-lto-objects -S -o avx256-unali
gned-store-1.s
PASS: gcc.target/i386/avx256-unaligned-store-1.c (test for excess errors)
PASS: gcc.target/i386/avx256-unaligned-store-1.c scan-assembler-not
vmovups.*movv8sf_internal/4
FAIL: gcc.target/i386/avx256-unaligned-store-1.c scan-assembler
vmovups.*movv4sf_internal/4

---
spawn -ignore SIGHUP /work/gcc/xgcc -B/work/gcc/
/source/gcc/testsuite/gcc.target/i386/avx256-unaligned-store-2.c
-B/work/x86_64-pc-linux-gnu/./libmpx/
-B/work/x86_64-pc-linux-gnu/./libmpx/mpxrt
-L/work/x86_64-pc-linux-gnu/./libmpx/mpxrt/.libs
-B/work/x86_64-pc-linux-gnu/./libmpx/
-B/work/x86_64-pc-linux-gnu/./libmpx/mpxwrap
-L/work/x86_64-pc-linux-gnu/./libmpx/mpxwrap/.libs -fno-diagnostics-show-caret
-fdiagnostics-color=never -O3 -mtune-ctrl=sse_typeless_stores -dp -mavx
-mavx256-split-unaligned-store -mno-prefer-avx128 -ffat-lto-objects -S -o
avx256-unaligned-store-2.s
PASS: gcc.target/i386/avx256-unaligned-store-2.c (test for excess errors)
PASS: gcc.target/i386/avx256-unaligned-store-2.c scan-assembler-not
vmovups.*movv32qi_internal/4
FAIL: gcc.target/i386/avx256-unaligned-store-2.c scan-assembler
vmovups.*movv16qi_internal/4

---
spawn -ignore SIGHUP /work/gcc/xgcc -B/work/gcc/
/source/gcc/testsuite/gcc.target/i386/avx256-unaligned-store-3.c
-B/work/x86_64-pc-linux-gnu/./libmpx/
-B/work/x86_64-pc-linux-gnu/./libmpx/mpxrt
-L/work/x86_64-pc-linux-gnu/./libmpx/mpxrt/.libs
-B/work/x86_64-pc-linux-gnu/./libmpx/
-B/work/x86_64-pc-linux-gnu/./libmpx/mpxwrap
-L/work/x86_64-pc-linux-gnu/./libmpx/mpxwrap/.libs -fno-diagnostics-show-caret
-fdiagnostics-color=never -O3 -dp -mavx -mavx256-split-unaligned-store
-mtune=generic -fno-common -ffat-lto-objects -S -o avx256-unaligned-store-3.s
PASS: gcc.target/i386/avx256-unaligned-store-3.c (test for excess errors)
PASS: gcc.target/i386/avx256-unaligned-store-3.c scan-assembler-not
vmovups.*movv4df_internal/4
FAIL: gcc.target/i386/avx256-unaligned-store-3.c scan-assembler
vmovups.*movv2df_internal/4

---
spawn -ignore SIGHUP /work/gcc/xgcc -B/work/gcc/
/source/gcc/testsuite/gcc.target/i386/avx256-unaligned-store-4.c
-B/work/x86_64-pc-linux-gnu/./libmpx/
-B/work/x86_64-pc-linux-gnu/./libmpx/mpxrt
-L/work/x86_64-pc-linux-gnu/./libmpx/mpxrt/.libs
-B/work/x86_64-pc-linux-gnu/./libmpx/
-B/work/x86_64-pc-linux-gnu/./libmpx/mpxwrap
-L/work/x86_64-pc-linux-gnu/./libmpx/mpxwrap/.libs -fno-diagnostics-show-caret
-fdiagnostics-color=never -O3 -dp -mavx -mno-avx256-split-unaligned-load
-mno-avx256-split-unaligned-store -mno-prefer-avx128 -fno-common
-ffat-lto-objects -S -o avx256-unaligned-store-4.s
PASS: gcc.target/i386/avx256-unaligned-store-4.c (test for excess errors)
FAIL: gcc.target/i386/avx256-unaligned-store-4.c scan-assembler
vmovups.*movv8sf_internal/4



Option set:
-with-system-zlib --with-demangler-in-ld --with-fpmath=sse --enable-shared
--enable-host-shared --enable-clocale=gnu --enable-cloog-backend=isl
--enable-languages=c,c++,fortran,jit,lto -with-arch=haswell --with-cpu=haswell

Also happens on Silvermont.