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[SLP] add tests for PR16739; NFC 

llvm-svn: 369127
This commit is contained in:
Sanjay Patel 2019-08-16 17:01:26 +00:00
parent 3a8c698771
commit 144903310f
1 changed files with 68 additions and 0 deletions
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68
llvm/test/Transforms/SLPVectorizer/X86/load-merge.ll
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@ -48,3 +48,71 @@ entry:
%or11 = or i32 %or7, %shl10
ret i32 %or11
}
define <4 x float> @PR16739_byref(<4 x float>* nocapture readonly dereferenceable(16) %x) {
; CHECK-LABEL: @PR16739_byref(
; CHECK-NEXT: [[GEP0:%.*]] = getelementptr inbounds <4 x float>, <4 x float>* [[X:%.*]], i64 0, i64 0
; CHECK-NEXT: [[GEP1:%.*]] = getelementptr inbounds <4 x float>, <4 x float>* [[X]], i64 0, i64 1
; CHECK-NEXT: [[GEP2:%.*]] = getelementptr inbounds <4 x float>, <4 x float>* [[X]], i64 0, i64 2
; CHECK-NEXT: [[TMP1:%.*]] = bitcast float* [[GEP0]] to <2 x float>*
; CHECK-NEXT: [[TMP2:%.*]] = load <2 x float>, <2 x float>* [[TMP1]], align 4
; CHECK-NEXT: [[X2:%.*]] = load float, float* [[GEP2]]
; CHECK-NEXT: [[TMP3:%.*]] = extractelement <2 x float> [[TMP2]], i32 0
; CHECK-NEXT: [[I0:%.*]] = insertelement <4 x float> undef, float [[TMP3]], i32 0
; CHECK-NEXT: [[TMP4:%.*]] = extractelement <2 x float> [[TMP2]], i32 1
; CHECK-NEXT: [[I1:%.*]] = insertelement <4 x float> [[I0]], float [[TMP4]], i32 1
; CHECK-NEXT: [[I2:%.*]] = insertelement <4 x float> [[I1]], float [[X2]], i32 2
; CHECK-NEXT: [[I3:%.*]] = insertelement <4 x float> [[I2]], float [[X2]], i32 3
; CHECK-NEXT: ret <4 x float> [[I3]]
;
%gep0 = getelementptr inbounds <4 x float>, <4 x float>* %x, i64 0, i64 0
%gep1 = getelementptr inbounds <4 x float>, <4 x float>* %x, i64 0, i64 1
%gep2 = getelementptr inbounds <4 x float>, <4 x float>* %x, i64 0, i64 2
%x0 = load float, float* %gep0
%x1 = load float, float* %gep1
%x2 = load float, float* %gep2
%i0 = insertelement <4 x float> undef, float %x0, i32 0
%i1 = insertelement <4 x float> %i0, float %x1, i32 1
%i2 = insertelement <4 x float> %i1, float %x2, i32 2
%i3 = insertelement <4 x float> %i2, float %x2, i32 3
ret <4 x float> %i3
}
define <4 x float> @PR16739_byval(<4 x float>* nocapture readonly dereferenceable(16) %x) {
; CHECK-LABEL: @PR16739_byval(
; CHECK-NEXT: [[T0:%.*]] = bitcast <4 x float>* [[X:%.*]] to i64*
; CHECK-NEXT: [[T1:%.*]] = load i64, i64* [[T0]], align 16
; CHECK-NEXT: [[T2:%.*]] = getelementptr inbounds <4 x float>, <4 x float>* [[X]], i64 0, i64 2
; CHECK-NEXT: [[T3:%.*]] = bitcast float* [[T2]] to i64*
; CHECK-NEXT: [[T4:%.*]] = load i64, i64* [[T3]], align 8
; CHECK-NEXT: [[T5:%.*]] = trunc i64 [[T1]] to i32
; CHECK-NEXT: [[T6:%.*]] = bitcast i32 [[T5]] to float
; CHECK-NEXT: [[T7:%.*]] = insertelement <4 x float> undef, float [[T6]], i32 0
; CHECK-NEXT: [[T8:%.*]] = lshr i64 [[T1]], 32
; CHECK-NEXT: [[T9:%.*]] = trunc i64 [[T8]] to i32
; CHECK-NEXT: [[T10:%.*]] = bitcast i32 [[T9]] to float
; CHECK-NEXT: [[T11:%.*]] = insertelement <4 x float> [[T7]], float [[T10]], i32 1
; CHECK-NEXT: [[T12:%.*]] = trunc i64 [[T4]] to i32
; CHECK-NEXT: [[T13:%.*]] = bitcast i32 [[T12]] to float
; CHECK-NEXT: [[T14:%.*]] = insertelement <4 x float> [[T11]], float [[T13]], i32 2
; CHECK-NEXT: [[T15:%.*]] = insertelement <4 x float> [[T14]], float [[T13]], i32 3
; CHECK-NEXT: ret <4 x float> [[T15]]
;
%t0 = bitcast <4 x float>* %x to i64*
%t1 = load i64, i64* %t0, align 16
%t2 = getelementptr inbounds <4 x float>, <4 x float>* %x, i64 0, i64 2
%t3 = bitcast float* %t2 to i64*
%t4 = load i64, i64* %t3, align 8
%t5 = trunc i64 %t1 to i32
%t6 = bitcast i32 %t5 to float
%t7 = insertelement <4 x float> undef, float %t6, i32 0
%t8 = lshr i64 %t1, 32
%t9 = trunc i64 %t8 to i32
%t10 = bitcast i32 %t9 to float
%t11 = insertelement <4 x float> %t7, float %t10, i32 1
%t12 = trunc i64 %t4 to i32
%t13 = bitcast i32 %t12 to float
%t14 = insertelement <4 x float> %t11, float %t13, i32 2
%t15 = insertelement <4 x float> %t14, float %t13, i32 3
ret <4 x float> %t15
}