message: Fail_db.txt update after LLVM bug 40891 fix in trunk
diff: % LLVM 9.0 fails
  -./tests/pmuls-vi64.ispc compfail x86 avx1-i32x16 Linux LLVM 9.0 clang++9.0 -O0 *
  -./tests/pmulus-vi64.ispc compfail x86 avx1-i32x16 Linux LLVM 9.0 clang++9.0 -O0 *
  -./tests/pmuls-vi64.ispc compfail x86 avx1.1-i32x16 Linux LLVM 9.0 clang++9.0 -O0 *
  -./tests/pmulus-vi64.ispc compfail x86 avx1.1-i32x16 Linux LLVM 9.0 clang++9.0 -O0 *
  ./tests/cfor-gs-double-improve-multidim-2.ispc runfail x86 avx2-i32x8 Linux LLVM 9.0 clang++9.0 -O2 *
  ./tests/cfor-gs-improve-multidim-2.ispc runfail x86 avx2-i32x8 Linux LLVM 9.0 clang++9.0 -O2 *
  ./tests/gs-double-improve-multidim-2.ispc runfail x86 avx2-i32x8 Linux LLVM 9.0 clang++9.0 -O2 *
  ./tests/gs-improve-multidim-2.ispc runfail x86 avx2-i32x16 Linux LLVM 9.0 clang++9.0 -O2 *
  ./tests/gs-improve-unif.ispc runfail x86 avx2-i32x16 Linux LLVM 9.0 clang++9.0 -O2 *
  ./tests/struct-test-118.ispc runfail x86 avx2-i32x16 Linux LLVM 9.0 clang++9.0 -O2 *
  -./tests/pmuls-vi64.ispc compfail x86 avx2-i32x16 Linux LLVM 9.0 clang++9.0 -O0 *
  -./tests/pmulus-vi64.ispc compfail x86 avx2-i32x16 Linux LLVM 9.0 clang++9.0 -O0 *
  ./tests/cfor-gs-double-improve-multidim-2.ispc runfail x86 avx2-i64x4 Linux LLVM 9.0 clang++9.0 -O2 *
  ./tests/cfor-gs-improve-multidim-2.ispc runfail x86 avx2-i64x4 Linux LLVM 9.0 clang++9.0 -O2 *
  ./tests/gs-double-improve-multidim-2.ispc runfail x86 avx2-i64x4 Linux LLVM 9.0 clang++9.0 -O2 *
  