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[x86] add test for disguised horizontal op; NFC

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llvm-svn: 357630
This commit is contained in:
Sanjay Patel 2019-04-03 20:34:22 +00:00
parent 091baa7381
commit 8c9ceecdc6
1 changed files with 48 additions and 0 deletions
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48
llvm/test/CodeGen/X86/haddsub-shuf.ll
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@ -313,6 +313,54 @@ define <2 x double> @hadd_v2f64(<2 x double> %a) {
ret <2 x double> %shuf
}
define <2 x double> @hadd_v2f64_scalar_splat(<2 x double> %a) {
; SSSE3_SLOW-LABEL: hadd_v2f64_scalar_splat:
; SSSE3_SLOW: # %bb.0:
; SSSE3_SLOW-NEXT: movapd %xmm0, %xmm1
; SSSE3_SLOW-NEXT: unpckhpd {{.*#+}} xmm1 = xmm1[1],xmm0[1]
; SSSE3_SLOW-NEXT: addsd %xmm0, %xmm1
; SSSE3_SLOW-NEXT: movddup {{.*#+}} xmm0 = xmm1[0,0]
; SSSE3_SLOW-NEXT: retq
;
; SSSE3_FAST-LABEL: hadd_v2f64_scalar_splat:
; SSSE3_FAST: # %bb.0:
; SSSE3_FAST-NEXT: haddpd %xmm0, %xmm0
; SSSE3_FAST-NEXT: movddup {{.*#+}} xmm0 = xmm0[0,0]
; SSSE3_FAST-NEXT: retq
;
; AVX1_SLOW-LABEL: hadd_v2f64_scalar_splat:
; AVX1_SLOW: # %bb.0:
; AVX1_SLOW-NEXT: vpermilpd {{.*#+}} xmm1 = xmm0[1,0]
; AVX1_SLOW-NEXT: vaddsd %xmm1, %xmm0, %xmm0
; AVX1_SLOW-NEXT: vmovddup {{.*#+}} xmm0 = xmm0[0,0]
; AVX1_SLOW-NEXT: retq
;
; AVX1_FAST-LABEL: hadd_v2f64_scalar_splat:
; AVX1_FAST: # %bb.0:
; AVX1_FAST-NEXT: vhaddpd %xmm0, %xmm0, %xmm0
; AVX1_FAST-NEXT: vmovddup {{.*#+}} xmm0 = xmm0[0,0]
; AVX1_FAST-NEXT: retq
;
; AVX2_SLOW-LABEL: hadd_v2f64_scalar_splat:
; AVX2_SLOW: # %bb.0:
; AVX2_SLOW-NEXT: vpermilpd {{.*#+}} xmm1 = xmm0[1,0]
; AVX2_SLOW-NEXT: vaddsd %xmm1, %xmm0, %xmm0
; AVX2_SLOW-NEXT: vmovddup {{.*#+}} xmm0 = xmm0[0,0]
; AVX2_SLOW-NEXT: retq
;
; AVX2_FAST-LABEL: hadd_v2f64_scalar_splat:
; AVX2_FAST: # %bb.0:
; AVX2_FAST-NEXT: vhaddpd %xmm0, %xmm0, %xmm0
; AVX2_FAST-NEXT: vmovddup {{.*#+}} xmm0 = xmm0[0,0]
; AVX2_FAST-NEXT: retq
%a0 = extractelement <2 x double> %a, i32 0
%a1 = extractelement <2 x double> %a, i32 1
%hop = fadd double %a0, %a1
%ins = insertelement <2 x double> undef, double %hop, i32 0
%shuf = shufflevector <2 x double> %ins, <2 x double> undef, <2 x i32> <i32 0, i32 0>
ret <2 x double> %shuf
}
define <4 x double> @hadd_v4f64(<4 x double> %a) {
; SSSE3_SLOW-LABEL: hadd_v4f64:
; SSSE3_SLOW: # %bb.0: