; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt -S -slp-vectorizer -mtriple=x86_64-unknown-linux-gnu -mcpu=cascadelake < %s | FileCheck %s define void @test() { ; CHECK-LABEL: @test( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[ARRAYIDX10_I_I86:%.*]] = getelementptr inbounds float, ptr undef, i64 2 ; CHECK-NEXT: [[ARRAYIDX21_I:%.*]] = getelementptr inbounds [4 x float], ptr undef, i64 2 ; CHECK-NEXT: br label [[BB1:%.*]] ; CHECK: bb1: ; CHECK-NEXT: [[TMP0:%.*]] = load <2 x float>, ptr undef, align 4 ; CHECK-NEXT: [[TMP1:%.*]] = fsub <2 x float> zeroinitializer, [[TMP0]] ; CHECK-NEXT: [[TMP2:%.*]] = load float, ptr [[ARRAYIDX10_I_I86]], align 4 ; CHECK-NEXT: [[TMP3:%.*]] = load float, ptr undef, align 4 ; CHECK-NEXT: [[TMP4:%.*]] = shufflevector <2 x float> <float 0.000000e+00, float poison>, <2 x float> [[TMP0]], <2 x i32> <i32 0, i32 3> ; CHECK-NEXT: [[TMP5:%.*]] = insertelement <2 x float> poison, float [[TMP3]], i32 0 ; CHECK-NEXT: [[TMP6:%.*]] = insertelement <2 x float> [[TMP5]], float [[TMP2]], i32 1 ; CHECK-NEXT: [[TMP7:%.*]] = insertelement <2 x float> <float poison, float 0.000000e+00>, float [[TMP2]], i32 0 ; CHECK-NEXT: [[TMP8:%.*]] = call <2 x float> @llvm.fmuladd.v2f32(<2 x float> [[TMP4]], <2 x float> [[TMP6]], <2 x float> [[TMP7]]) ; CHECK-NEXT: br i1 false, label [[BB2:%.*]], label [[BB3:%.*]] ; CHECK: bb2: ; CHECK-NEXT: [[TMP9:%.*]] = fmul <2 x float> [[TMP8]], zeroinitializer ; CHECK-NEXT: br label [[BB3]] ; CHECK: bb3: ; CHECK-NEXT: [[TMP10:%.*]] = phi <2 x float> [ [[TMP9]], [[BB2]] ], [ zeroinitializer, [[BB1]] ] ; CHECK-NEXT: [[SHUFFLE:%.*]] = shufflevector <2 x float> [[TMP10]], <2 x float> poison, <2 x i32> <i32 1, i32 0> ; CHECK-NEXT: [[TMP11:%.*]] = fadd <2 x float> [[TMP1]], [[SHUFFLE]] ; CHECK-NEXT: [[TMP12:%.*]] = fadd <2 x float> [[TMP11]], zeroinitializer ; CHECK-NEXT: [[TMP13:%.*]] = fsub <2 x float> [[TMP12]], zeroinitializer ; CHECK-NEXT: [[TMP14:%.*]] = fsub <2 x float> [[TMP13]], zeroinitializer ; CHECK-NEXT: store <2 x float> [[TMP14]], ptr [[ARRAYIDX21_I]], align 16 ; CHECK-NEXT: ret void ; entry: %arrayidx10.i.i86 = getelementptr inbounds float, ptr undef, i64 2 %arrayidx6.i66.i = getelementptr inbounds float, ptr undef, i64 1 %arrayidx21.i = getelementptr inbounds [4 x float], ptr undef, i64 2 %arrayidx6.i109.i = getelementptr inbounds [4 x float], ptr undef, i64 2, i64 1 br label %bb1 bb1: %0 = load float, ptr undef, align 4 %sub.i71.i = fsub float 0.000000e+00, %0 %1 = load float, ptr %arrayidx6.i66.i, align 4 %sub5.i74.i = fsub float 0.000000e+00, %1 %2 = load float, ptr %arrayidx10.i.i86, align 4 %3 = call float @llvm.fmuladd.f32(float %1, float %2, float 0.000000e+00) %4 = load float, ptr undef, align 4 %5 = call float @llvm.fmuladd.f32(float 0.000000e+00, float %4, float %2) br i1 false, label %bb2, label %bb3 bb2: %mul.i95 = fmul float %3, 0.000000e+00 %mul3.i96 = fmul float %5, 0.000000e+00 br label %bb3 bb3: %vddir.sroa.8.0.i = phi float [ %mul3.i96, %bb2 ], [ 0.000000e+00, %bb1 ] %vddir.sroa.0.0.i = phi float [ %mul.i95, %bb2 ], [ 0.000000e+00, %bb1 ] %add.i.i = fadd float %sub.i71.i, %vddir.sroa.0.0.i %add5.i.i = fadd float %sub5.i74.i, %vddir.sroa.8.0.i %add.i105.i = fadd float %add.i.i, 0.000000e+00 %add5.i108.i = fadd float %add5.i.i, 0.000000e+00 %sub.i114.i = fsub float %add.i105.i, 0.000000e+00 %sub4.i.i = fsub float %add5.i108.i, 0.000000e+00 %sub.i118.i = fsub float %sub.i114.i, 0.000000e+00 store float %sub.i118.i, ptr %arrayidx21.i, align 16 %sub4.i121.i = fsub float %sub4.i.i, 0.000000e+00 store float %sub4.i121.i, ptr %arrayidx6.i109.i, align 4 ret void } declare float @llvm.fmuladd.f32(float, float, float)