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[x86] add tests for PR40243; NFC 

llvm-svn: 350646
This commit is contained in:
Sanjay Patel 2019-01-08 19:15:21 +00:00
parent e8abbecaf7
commit 6a18c531ae
2 changed files with 51 additions and 2 deletions
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23
llvm/test/CodeGen/X86/haddsub-undef.ll
View File

@ -926,8 +926,6 @@ define <4 x float> @v16f32_inputs_v4f32_output_0123(<16 x float> %a, <16 x float
ret <4 x float> %r
}
; FIXME: Miscompiles with any AVX.
define <8 x float> @v16f32_inputs_v8f32_output_4567(<16 x float> %a, <16 x float> %b) {
; SSE-LABEL: v16f32_inputs_v8f32_output_4567:
; SSE: # %bb.0:
@ -967,3 +965,24 @@ define <8 x float> @v16f32_inputs_v8f32_output_4567(<16 x float> %a, <16 x float
ret <8 x float> %r
}
define <8 x float> @PR40243(<8 x float> %a, <8 x float> %b) {
; SSE-LABEL: PR40243:
; SSE: # %bb.0:
; SSE-NEXT: haddps %xmm3, %xmm1
; SSE-NEXT: retq
;
; AVX-LABEL: PR40243:
; AVX: # %bb.0:
; AVX-NEXT: vhaddps %ymm0, %ymm0, %ymm0
; AVX-NEXT: retq
%a4 = extractelement <8 x float> %a, i32 4
%a5 = extractelement <8 x float> %a, i32 5
%add4 = fadd float %a4, %a5
%b6 = extractelement <8 x float> %b, i32 6
%b7 = extractelement <8 x float> %b, i32 7
%add7 = fadd float %b6, %b7
%r4 = insertelement <8 x float> undef, float %add4, i32 4
%r = insertelement <8 x float> %r4, float %add7, i32 7
ret <8 x float> %r
}

30
llvm/test/CodeGen/X86/phaddsub-undef.ll
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@ -93,6 +93,36 @@ define <8 x i32> @test15_undef(<8 x i32> %a, <8 x i32> %b) {
ret <8 x i32> %vecinit5
}
define <8 x i32> @PR40243_alt(<8 x i32> %a, <8 x i32> %b) {
; SSE-LABEL: PR40243_alt:
; SSE: # %bb.0:
; SSE-NEXT: phaddd %xmm3, %xmm1
; SSE-NEXT: retq
;
; AVX1-LABEL: PR40243_alt:
; AVX1: # %bb.0:
; AVX1-NEXT: retq
;
; AVX2-LABEL: PR40243_alt:
; AVX2: # %bb.0:
; AVX2-NEXT: vphaddd %ymm0, %ymm0, %ymm0
; AVX2-NEXT: retq
;
; AVX512-LABEL: PR40243_alt:
; AVX512: # %bb.0:
; AVX512-NEXT: vphaddd %ymm0, %ymm0, %ymm0
; AVX512-NEXT: retq
%a4 = extractelement <8 x i32> %a, i32 4
%a5 = extractelement <8 x i32> %a, i32 5
%add4 = add i32 %a4, %a5
%b6 = extractelement <8 x i32> %b, i32 6
%b7 = extractelement <8 x i32> %b, i32 7
%add7 = add i32 %b6, %b7
%r4 = insertelement <8 x i32> undef, i32 %add4, i32 4
%r = insertelement <8 x i32> %r4, i32 %add7, i32 7
ret <8 x i32> %r
}
define <8 x i32> @test16_undef(<8 x i32> %a, <8 x i32> %b) {
; SSE-LABEL: test16_undef:
; SSE: # %bb.0: