diff options
Diffstat (limited to 'llvm')
| -rw-r--r-- | llvm/test/CodeGen/X86/avx512-skx-insert-subvec.ll | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/avx512-skx-insert-subvec.ll b/llvm/test/CodeGen/X86/avx512-skx-insert-subvec.ll index 5ed2ef5fa50..76c983e6708 100644 --- a/llvm/test/CodeGen/X86/avx512-skx-insert-subvec.ll +++ b/llvm/test/CodeGen/X86/avx512-skx-insert-subvec.ll @@ -199,3 +199,21 @@ define <64 x i1> @test14(<2 x i1> %a) { %res = shufflevector <2 x i1> %a, <2 x i1> zeroinitializer, <64 x i32> <i32 2, i32 3, i32 2, i32 3, i32 2, i32 3, i32 2, i32 3, i32 2, i32 3, i32 0, i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef> ret <64 x i1> %res } + +; Make sure we can recognize this shuffle as an insertion in to a zero vector. +define i8 @test15(<2 x i64> %x) { +; CHECK-LABEL: test15: +; CHECK: # %bb.0: +; CHECK-NEXT: vptestnmq %xmm0, %xmm0, %k0 +; CHECK-NEXT: vpmovm2d %k0, %ymm0 +; CHECK-NEXT: vmovq {{.*#+}} xmm0 = xmm0[0],zero +; CHECK-NEXT: vpmovd2m %ymm0, %k0 +; CHECK-NEXT: kmovd %k0, %eax +; CHECK-NEXT: # kill: def $al killed $al killed $eax +; CHECK-NEXT: vzeroupper +; CHECK-NEXT: retq + %a = icmp eq <2 x i64> %x, zeroinitializer + %b = shufflevector <2 x i1> %a, <2 x i1> <i1 false, i1 undef>, <8 x i32> <i32 0, i32 1, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2> + %c = bitcast <8 x i1> %b to i8 + ret i8 %c +} |
