diff --git a/llvm/test/Transforms/SLPVectorizer/AArch64/splat-loads.ll b/llvm/test/Transforms/SLPVectorizer/AArch64/splat-loads.ll new file mode 100644 --- /dev/null +++ b/llvm/test/Transforms/SLPVectorizer/AArch64/splat-loads.ll @@ -0,0 +1,193 @@ +; NOTE: Assertions have been autogenerated by utils/update_test_checks.py +; RUN: opt < %s -slp-vectorizer -S | FileCheck %s + +target triple = "aarch64--linux-gnu" + +; This checks that we we prefer splats rather than load vectors + shuffles. +; A load + broadcast can be done efficiently with a single `ld1r` instruction. +define void @splat_loads_double(double *%array1, double *%array2, double *%ptrA, double *%ptrB) { +; CHECK-LABEL: @splat_loads_double( +; CHECK-NEXT: entry: +; CHECK-NEXT: [[GEP_1_0:%.*]] = getelementptr inbounds double, double* [[ARRAY1:%.*]], i64 0 +; CHECK-NEXT: [[GEP_2_0:%.*]] = getelementptr inbounds double, double* [[ARRAY2:%.*]], i64 0 +; CHECK-NEXT: [[TMP0:%.*]] = bitcast double* [[GEP_1_0]] to <2 x double>* +; CHECK-NEXT: [[TMP1:%.*]] = load <2 x double>, <2 x double>* [[TMP0]], align 8 +; CHECK-NEXT: [[TMP2:%.*]] = bitcast double* [[GEP_2_0]] to <2 x double>* +; CHECK-NEXT: [[TMP3:%.*]] = load <2 x double>, <2 x double>* [[TMP2]], align 8 +; CHECK-NEXT: [[SHUFFLE:%.*]] = shufflevector <2 x double> [[TMP3]], <2 x double> poison, <2 x i32> +; CHECK-NEXT: [[TMP4:%.*]] = fmul <2 x double> [[TMP1]], [[SHUFFLE]] +; CHECK-NEXT: [[TMP5:%.*]] = extractelement <2 x double> [[SHUFFLE]], i32 1 +; CHECK-NEXT: [[TMP6:%.*]] = insertelement <2 x double> poison, double [[TMP5]], i32 0 +; CHECK-NEXT: [[TMP7:%.*]] = extractelement <2 x double> [[SHUFFLE]], i32 0 +; CHECK-NEXT: [[TMP8:%.*]] = insertelement <2 x double> [[TMP6]], double [[TMP7]], i32 1 +; CHECK-NEXT: [[TMP9:%.*]] = fmul <2 x double> [[TMP1]], [[TMP8]] +; CHECK-NEXT: [[TMP10:%.*]] = fadd <2 x double> [[TMP4]], [[TMP9]] +; CHECK-NEXT: [[TMP11:%.*]] = bitcast double* [[GEP_1_0]] to <2 x double>* +; CHECK-NEXT: store <2 x double> [[TMP10]], <2 x double>* [[TMP11]], align 8 +; CHECK-NEXT: ret void +; +entry: + %gep_1_0 = getelementptr inbounds double, double* %array1, i64 0 + %gep_1_1 = getelementptr inbounds double, double* %array1, i64 1 + %ld_1_0 = load double, double* %gep_1_0, align 8 + %ld_1_1 = load double, double* %gep_1_1, align 8 + + %gep_2_0 = getelementptr inbounds double, double* %array2, i64 0 + %gep_2_1 = getelementptr inbounds double, double* %array2, i64 1 + %ld_2_0 = load double, double* %gep_2_0, align 8 + %ld_2_1 = load double, double* %gep_2_1, align 8 + + %mul0 = fmul double %ld_1_0, %ld_2_0 + %mul1 = fmul double %ld_1_1, %ld_2_0 + + %mul2 = fmul double %ld_1_0, %ld_2_1 + %mul3 = fmul double %ld_1_1, %ld_2_1 + + %add0 = fadd double %mul0, %mul2 + %add1 = fadd double %mul1, %mul3 + + store double %add0, double *%gep_1_0 + store double %add1, double *%gep_1_1 + ret void +} + +; Same but with float instead of double +define void @splat_loads_float(float *%array1, float *%array2, float *%ptrA, float *%ptrB) { +; CHECK-LABEL: @splat_loads_float( +; CHECK-NEXT: entry: +; CHECK-NEXT: [[GEP_1_0:%.*]] = getelementptr inbounds float, float* [[ARRAY1:%.*]], i64 0 +; CHECK-NEXT: [[GEP_2_0:%.*]] = getelementptr inbounds float, float* [[ARRAY2:%.*]], i64 0 +; CHECK-NEXT: [[TMP0:%.*]] = bitcast float* [[GEP_1_0]] to <2 x float>* +; CHECK-NEXT: [[TMP1:%.*]] = load <2 x float>, <2 x float>* [[TMP0]], align 8 +; CHECK-NEXT: [[TMP2:%.*]] = bitcast float* [[GEP_2_0]] to <2 x float>* +; CHECK-NEXT: [[TMP3:%.*]] = load <2 x float>, <2 x float>* [[TMP2]], align 8 +; CHECK-NEXT: [[SHUFFLE:%.*]] = shufflevector <2 x float> [[TMP3]], <2 x float> poison, <2 x i32> +; CHECK-NEXT: [[TMP4:%.*]] = fmul <2 x float> [[TMP1]], [[SHUFFLE]] +; CHECK-NEXT: [[TMP5:%.*]] = extractelement <2 x float> [[SHUFFLE]], i32 1 +; CHECK-NEXT: [[TMP6:%.*]] = insertelement <2 x float> poison, float [[TMP5]], i32 0 +; CHECK-NEXT: [[TMP7:%.*]] = extractelement <2 x float> [[SHUFFLE]], i32 0 +; CHECK-NEXT: [[TMP8:%.*]] = insertelement <2 x float> [[TMP6]], float [[TMP7]], i32 1 +; CHECK-NEXT: [[TMP9:%.*]] = fmul <2 x float> [[TMP1]], [[TMP8]] +; CHECK-NEXT: [[TMP10:%.*]] = fadd <2 x float> [[TMP4]], [[TMP9]] +; CHECK-NEXT: [[TMP11:%.*]] = bitcast float* [[GEP_1_0]] to <2 x float>* +; CHECK-NEXT: store <2 x float> [[TMP10]], <2 x float>* [[TMP11]], align 4 +; CHECK-NEXT: ret void +; +entry: + %gep_1_0 = getelementptr inbounds float, float* %array1, i64 0 + %gep_1_1 = getelementptr inbounds float, float* %array1, i64 1 + %ld_1_0 = load float, float* %gep_1_0, align 8 + %ld_1_1 = load float, float* %gep_1_1, align 8 + + %gep_2_0 = getelementptr inbounds float, float* %array2, i64 0 + %gep_2_1 = getelementptr inbounds float, float* %array2, i64 1 + %ld_2_0 = load float, float* %gep_2_0, align 8 + %ld_2_1 = load float, float* %gep_2_1, align 8 + + %mul0 = fmul float %ld_1_0, %ld_2_0 + %mul1 = fmul float %ld_1_1, %ld_2_0 + + %mul2 = fmul float %ld_1_0, %ld_2_1 + %mul3 = fmul float %ld_1_1, %ld_2_1 + + %add0 = fadd float %mul0, %mul2 + %add1 = fadd float %mul1, %mul3 + + store float %add0, float *%gep_1_0 + store float %add1, float *%gep_1_1 + ret void +} + +; Same but with i64 +define void @splat_loads_i64(i64 *%array1, i64 *%array2, i64 *%ptrA, i64 *%ptrB) { +; CHECK-LABEL: @splat_loads_i64( +; CHECK-NEXT: entry: +; CHECK-NEXT: [[GEP_1_0:%.*]] = getelementptr inbounds i64, i64* [[ARRAY1:%.*]], i64 0 +; CHECK-NEXT: [[GEP_2_0:%.*]] = getelementptr inbounds i64, i64* [[ARRAY2:%.*]], i64 0 +; CHECK-NEXT: [[TMP0:%.*]] = bitcast i64* [[GEP_1_0]] to <2 x i64>* +; CHECK-NEXT: [[TMP1:%.*]] = load <2 x i64>, <2 x i64>* [[TMP0]], align 8 +; CHECK-NEXT: [[TMP2:%.*]] = bitcast i64* [[GEP_2_0]] to <2 x i64>* +; CHECK-NEXT: [[TMP3:%.*]] = load <2 x i64>, <2 x i64>* [[TMP2]], align 8 +; CHECK-NEXT: [[SHUFFLE:%.*]] = shufflevector <2 x i64> [[TMP3]], <2 x i64> poison, <2 x i32> +; CHECK-NEXT: [[TMP4:%.*]] = or <2 x i64> [[TMP1]], [[SHUFFLE]] +; CHECK-NEXT: [[TMP5:%.*]] = extractelement <2 x i64> [[SHUFFLE]], i32 1 +; CHECK-NEXT: [[TMP6:%.*]] = insertelement <2 x i64> poison, i64 [[TMP5]], i32 0 +; CHECK-NEXT: [[TMP7:%.*]] = extractelement <2 x i64> [[SHUFFLE]], i32 0 +; CHECK-NEXT: [[TMP8:%.*]] = insertelement <2 x i64> [[TMP6]], i64 [[TMP7]], i32 1 +; CHECK-NEXT: [[TMP9:%.*]] = or <2 x i64> [[TMP1]], [[TMP8]] +; CHECK-NEXT: [[TMP10:%.*]] = add <2 x i64> [[TMP4]], [[TMP9]] +; CHECK-NEXT: [[TMP11:%.*]] = bitcast i64* [[GEP_1_0]] to <2 x i64>* +; CHECK-NEXT: store <2 x i64> [[TMP10]], <2 x i64>* [[TMP11]], align 4 +; CHECK-NEXT: ret void +; +entry: + %gep_1_0 = getelementptr inbounds i64, i64* %array1, i64 0 + %gep_1_1 = getelementptr inbounds i64, i64* %array1, i64 1 + %ld_1_0 = load i64, i64* %gep_1_0, align 8 + %ld_1_1 = load i64, i64* %gep_1_1, align 8 + + %gep_2_0 = getelementptr inbounds i64, i64* %array2, i64 0 + %gep_2_1 = getelementptr inbounds i64, i64* %array2, i64 1 + %ld_2_0 = load i64, i64* %gep_2_0, align 8 + %ld_2_1 = load i64, i64* %gep_2_1, align 8 + + %or0 = or i64 %ld_1_0, %ld_2_0 + %or1 = or i64 %ld_1_1, %ld_2_0 + + %or2 = or i64 %ld_1_0, %ld_2_1 + %or3 = or i64 %ld_1_1, %ld_2_1 + + %add0 = add i64 %or0, %or2 + %add1 = add i64 %or1, %or3 + + store i64 %add0, i64 *%gep_1_0 + store i64 %add1, i64 *%gep_1_1 + ret void +} + +; Same but with i32 +define void @splat_loads_i32(i32 *%array1, i32 *%array2, i32 *%ptrA, i32 *%ptrB) { +; CHECK-LABEL: @splat_loads_i32( +; CHECK-NEXT: entry: +; CHECK-NEXT: [[GEP_1_0:%.*]] = getelementptr inbounds i32, i32* [[ARRAY1:%.*]], i64 0 +; CHECK-NEXT: [[GEP_2_0:%.*]] = getelementptr inbounds i32, i32* [[ARRAY2:%.*]], i64 0 +; CHECK-NEXT: [[TMP0:%.*]] = bitcast i32* [[GEP_1_0]] to <2 x i32>* +; CHECK-NEXT: [[TMP1:%.*]] = load <2 x i32>, <2 x i32>* [[TMP0]], align 8 +; CHECK-NEXT: [[TMP2:%.*]] = bitcast i32* [[GEP_2_0]] to <2 x i32>* +; CHECK-NEXT: [[TMP3:%.*]] = load <2 x i32>, <2 x i32>* [[TMP2]], align 8 +; CHECK-NEXT: [[SHUFFLE:%.*]] = shufflevector <2 x i32> [[TMP3]], <2 x i32> poison, <2 x i32> +; CHECK-NEXT: [[TMP4:%.*]] = or <2 x i32> [[TMP1]], [[SHUFFLE]] +; CHECK-NEXT: [[TMP5:%.*]] = extractelement <2 x i32> [[SHUFFLE]], i32 1 +; CHECK-NEXT: [[TMP6:%.*]] = insertelement <2 x i32> poison, i32 [[TMP5]], i32 0 +; CHECK-NEXT: [[TMP7:%.*]] = extractelement <2 x i32> [[SHUFFLE]], i32 0 +; CHECK-NEXT: [[TMP8:%.*]] = insertelement <2 x i32> [[TMP6]], i32 [[TMP7]], i32 1 +; CHECK-NEXT: [[TMP9:%.*]] = or <2 x i32> [[TMP1]], [[TMP8]] +; CHECK-NEXT: [[TMP10:%.*]] = add <2 x i32> [[TMP4]], [[TMP9]] +; CHECK-NEXT: [[TMP11:%.*]] = bitcast i32* [[GEP_1_0]] to <2 x i32>* +; CHECK-NEXT: store <2 x i32> [[TMP10]], <2 x i32>* [[TMP11]], align 4 +; CHECK-NEXT: ret void +; +entry: + %gep_1_0 = getelementptr inbounds i32, i32* %array1, i64 0 + %gep_1_1 = getelementptr inbounds i32, i32* %array1, i64 1 + %ld_1_0 = load i32, i32* %gep_1_0, align 8 + %ld_1_1 = load i32, i32* %gep_1_1, align 8 + + %gep_2_0 = getelementptr inbounds i32, i32* %array2, i64 0 + %gep_2_1 = getelementptr inbounds i32, i32* %array2, i64 1 + %ld_2_0 = load i32, i32* %gep_2_0, align 8 + %ld_2_1 = load i32, i32* %gep_2_1, align 8 + + %or0 = or i32 %ld_1_0, %ld_2_0 + %or1 = or i32 %ld_1_1, %ld_2_0 + + %or2 = or i32 %ld_1_0, %ld_2_1 + %or3 = or i32 %ld_1_1, %ld_2_1 + + %add0 = add i32 %or0, %or2 + %add1 = add i32 %or1, %or3 + + store i32 %add0, i32 *%gep_1_0 + store i32 %add1, i32 *%gep_1_1 + ret void +}