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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2016-05-23 13:03:45 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2016-05-23 13:03:45 +0000 |
| commit | 7cc9814aafa98faaed1d3161e6b86b818fab223f (patch) | |
| tree | 2f0f22cdfa2bdea396827d1955ada5d8b00efe00 | |
| parent | 2546b5ac5f1a945326a99fcb02ee80ec987fe947 (diff) | |
| download | bcm5719-llvm-7cc9814aafa98faaed1d3161e6b86b818fab223f.tar.gz bcm5719-llvm-7cc9814aafa98faaed1d3161e6b86b818fab223f.zip | |
[X86][AVX] Added tests that access ymm registers before and after explicit vzeroupper/vzeroall calls
llvm-svn: 270434
| -rw-r--r-- | llvm/test/CodeGen/X86/vzero-excess.ll | 66 |
1 files changed, 60 insertions, 6 deletions
diff --git a/llvm/test/CodeGen/X86/vzero-excess.ll b/llvm/test/CodeGen/X86/vzero-excess.ll index 4bc110dc6de..7537b8eefb9 100644 --- a/llvm/test/CodeGen/X86/vzero-excess.ll +++ b/llvm/test/CodeGen/X86/vzero-excess.ll @@ -3,8 +3,36 @@ ; FIXME: The vzeroupper added by the VZeroUpperInserter pass is unnecessary in these tests. -define <8 x float> @zeroupper(<8 x float> %x) nounwind { -; CHECK-LABEL: zeroupper: +define <4 x float> @zeroupper_v4f32(<8 x float> *%x, <8 x float> %y) nounwind { +; CHECK-LABEL: zeroupper_v4f32: +; CHECK: # BB#0: +; CHECK-NEXT: pushq %rbx +; CHECK-NEXT: subq $48, %rsp +; CHECK-NEXT: vmovups %ymm0, (%rsp) # 32-byte Spill +; CHECK-NEXT: movq %rdi, %rbx +; CHECK-NEXT: vzeroupper +; CHECK-NEXT: vzeroupper +; CHECK-NEXT: callq the_unknown +; CHECK-NEXT: vmovups (%rsp), %ymm0 # 32-byte Reload +; CHECK-NEXT: vaddps (%rbx), %ymm0, %ymm0 +; CHECK-NEXT: vextractf128 $1, %ymm0, %xmm1 +; CHECK-NEXT: vaddps %xmm1, %xmm0, %xmm0 +; CHECK-NEXT: addq $48, %rsp +; CHECK-NEXT: popq %rbx +; CHECK-NEXT: vzeroupper +; CHECK-NEXT: retq + call void @llvm.x86.avx.vzeroupper() + call void @the_unknown() + %loadx = load <8 x float>, <8 x float> *%x, align 32 + %sum = fadd <8 x float> %loadx, %y + %lo = shufflevector <8 x float> %sum, <8 x float> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 3> + %hi = shufflevector <8 x float> %sum, <8 x float> undef, <4 x i32> <i32 4, i32 5, i32 6, i32 7> + %res = fadd <4 x float> %lo, %hi + ret <4 x float> %res +} + +define <8 x float> @zeroupper_v8f32(<8 x float> %x) nounwind { +; CHECK-LABEL: zeroupper_v8f32: ; CHECK: # BB#0: ; CHECK-NEXT: subq $56, %rsp ; CHECK-NEXT: vmovups %ymm0, (%rsp) # 32-byte Spill @@ -14,14 +42,41 @@ define <8 x float> @zeroupper(<8 x float> %x) nounwind { ; CHECK-NEXT: vmovups (%rsp), %ymm0 # 32-byte Reload ; CHECK-NEXT: addq $56, %rsp ; CHECK-NEXT: retq -; call void @llvm.x86.avx.vzeroupper() call void @the_unknown() ret <8 x float> %x } -define <8 x float> @zeroall(<8 x float> %x) nounwind { -; CHECK-LABEL: zeroall: +define <4 x float> @zeroall_v4f32(<8 x float> *%x, <8 x float> %y) nounwind { +; CHECK-LABEL: zeroall_v4f32: +; CHECK: # BB#0: +; CHECK-NEXT: pushq %rbx +; CHECK-NEXT: subq $48, %rsp +; CHECK-NEXT: vmovups %ymm0, (%rsp) # 32-byte Spill +; CHECK-NEXT: movq %rdi, %rbx +; CHECK-NEXT: vzeroall +; CHECK-NEXT: vzeroupper +; CHECK-NEXT: callq the_unknown +; CHECK-NEXT: vmovups (%rsp), %ymm0 # 32-byte Reload +; CHECK-NEXT: vaddps (%rbx), %ymm0, %ymm0 +; CHECK-NEXT: vextractf128 $1, %ymm0, %xmm1 +; CHECK-NEXT: vaddps %xmm1, %xmm0, %xmm0 +; CHECK-NEXT: addq $48, %rsp +; CHECK-NEXT: popq %rbx +; CHECK-NEXT: vzeroupper +; CHECK-NEXT: retq + call void @llvm.x86.avx.vzeroall() + call void @the_unknown() + %loadx = load <8 x float>, <8 x float> *%x, align 32 + %sum = fadd <8 x float> %loadx, %y + %lo = shufflevector <8 x float> %sum, <8 x float> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 3> + %hi = shufflevector <8 x float> %sum, <8 x float> undef, <4 x i32> <i32 4, i32 5, i32 6, i32 7> + %res = fadd <4 x float> %lo, %hi + ret <4 x float> %res +} + +define <8 x float> @zeroall_v8f32(<8 x float> %x) nounwind { +; CHECK-LABEL: zeroall_v8f32: ; CHECK: # BB#0: ; CHECK-NEXT: subq $56, %rsp ; CHECK-NEXT: vmovups %ymm0, (%rsp) # 32-byte Spill @@ -31,7 +86,6 @@ define <8 x float> @zeroall(<8 x float> %x) nounwind { ; CHECK-NEXT: vmovups (%rsp), %ymm0 # 32-byte Reload ; CHECK-NEXT: addq $56, %rsp ; CHECK-NEXT: retq -; call void @llvm.x86.avx.vzeroall() call void @the_unknown() ret <8 x float> %x |
