| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -basicaa -slp-vectorizer -S -mtriple=i386-apple-macosx10.8.0 -mcpu=corei7-avx | FileCheck %s |
| |
| target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128-n8:16:32-S128" |
| target triple = "i386-apple-macosx10.8.0" |
| |
| ;int test(double *G) { |
| ; G[0] = 1+G[5]*4; |
| ; G[1] = 6+G[6]*3; |
| ; G[2] = 7+G[5]*4; |
| ; G[3] = 8+G[6]*4; |
| ;} |
| |
| define i32 @test(double* nocapture %G) { |
| ; CHECK-LABEL: @test( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds double, double* [[G:%.*]], i64 5 |
| ; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds double, double* [[G]], i64 6 |
| ; CHECK-NEXT: [[TMP0:%.*]] = bitcast double* [[ARRAYIDX]] to <2 x double>* |
| ; CHECK-NEXT: [[TMP1:%.*]] = load <2 x double>, <2 x double>* [[TMP0]], align 8 |
| ; CHECK-NEXT: [[TMP2:%.*]] = fmul <2 x double> <double 4.000000e+00, double 3.000000e+00>, [[TMP1]] |
| ; CHECK-NEXT: [[TMP3:%.*]] = fadd <2 x double> <double 1.000000e+00, double 6.000000e+00>, [[TMP2]] |
| ; CHECK-NEXT: [[ARRAYIDX5:%.*]] = getelementptr inbounds double, double* [[G]], i64 1 |
| ; CHECK-NEXT: [[TMP4:%.*]] = bitcast double* [[G]] to <2 x double>* |
| ; CHECK-NEXT: store <2 x double> [[TMP3]], <2 x double>* [[TMP4]], align 8 |
| ; CHECK-NEXT: [[TMP5:%.*]] = extractelement <2 x double> [[TMP2]], i32 0 |
| ; CHECK-NEXT: [[ADD8:%.*]] = fadd double [[TMP5]], 7.000000e+00 |
| ; CHECK-NEXT: [[ARRAYIDX9:%.*]] = getelementptr inbounds double, double* [[G]], i64 2 |
| ; CHECK-NEXT: store double [[ADD8]], double* [[ARRAYIDX9]], align 8 |
| ; CHECK-NEXT: [[TMP6:%.*]] = extractelement <2 x double> [[TMP1]], i32 1 |
| ; CHECK-NEXT: [[MUL11:%.*]] = fmul double [[TMP6]], 4.000000e+00 |
| ; CHECK-NEXT: [[ADD12:%.*]] = fadd double [[MUL11]], 8.000000e+00 |
| ; CHECK-NEXT: [[ARRAYIDX13:%.*]] = getelementptr inbounds double, double* [[G]], i64 3 |
| ; CHECK-NEXT: store double [[ADD12]], double* [[ARRAYIDX13]], align 8 |
| ; CHECK-NEXT: ret i32 undef |
| ; |
| entry: |
| %arrayidx = getelementptr inbounds double, double* %G, i64 5 |
| %0 = load double, double* %arrayidx, align 8 |
| %mul = fmul double %0, 4.000000e+00 |
| %add = fadd double %mul, 1.000000e+00 |
| store double %add, double* %G, align 8 |
| %arrayidx2 = getelementptr inbounds double, double* %G, i64 6 |
| %1 = load double, double* %arrayidx2, align 8 |
| %mul3 = fmul double %1, 3.000000e+00 |
| %add4 = fadd double %mul3, 6.000000e+00 |
| %arrayidx5 = getelementptr inbounds double, double* %G, i64 1 |
| store double %add4, double* %arrayidx5, align 8 |
| %add8 = fadd double %mul, 7.000000e+00 |
| %arrayidx9 = getelementptr inbounds double, double* %G, i64 2 |
| store double %add8, double* %arrayidx9, align 8 |
| %mul11 = fmul double %1, 4.000000e+00 |
| %add12 = fadd double %mul11, 8.000000e+00 |
| %arrayidx13 = getelementptr inbounds double, double* %G, i64 3 |
| store double %add12, double* %arrayidx13, align 8 |
| ret i32 undef |
| } |
| |
| ;int foo(double *A, int n) { |
| ; A[0] = A[0] * 7.9 * n + 6.0; |
| ; A[1] = A[1] * 7.7 * n + 2.0; |
| ; A[2] = A[2] * 7.6 * n + 3.0; |
| ; A[3] = A[3] * 7.4 * n + 4.0; |
| ;} |
| |
| define i32 @foo(double* nocapture %A, i32 %n) { |
| ; CHECK-LABEL: @foo( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[CONV:%.*]] = sitofp i32 [[N:%.*]] to double |
| ; CHECK-NEXT: [[ARRAYIDX3:%.*]] = getelementptr inbounds double, double* [[A:%.*]], i64 1 |
| ; CHECK-NEXT: [[ARRAYIDX9:%.*]] = getelementptr inbounds double, double* [[A]], i64 2 |
| ; CHECK-NEXT: [[ARRAYIDX15:%.*]] = getelementptr inbounds double, double* [[A]], i64 3 |
| ; CHECK-NEXT: [[TMP0:%.*]] = bitcast double* [[A]] to <4 x double>* |
| ; CHECK-NEXT: [[TMP1:%.*]] = load <4 x double>, <4 x double>* [[TMP0]], align 8 |
| ; CHECK-NEXT: [[TMP2:%.*]] = fmul <4 x double> <double 7.900000e+00, double 7.700000e+00, double 7.600000e+00, double 7.400000e+00>, [[TMP1]] |
| ; CHECK-NEXT: [[TMP3:%.*]] = insertelement <4 x double> undef, double [[CONV]], i32 0 |
| ; CHECK-NEXT: [[TMP4:%.*]] = insertelement <4 x double> [[TMP3]], double [[CONV]], i32 1 |
| ; CHECK-NEXT: [[TMP5:%.*]] = insertelement <4 x double> [[TMP4]], double [[CONV]], i32 2 |
| ; CHECK-NEXT: [[TMP6:%.*]] = insertelement <4 x double> [[TMP5]], double [[CONV]], i32 3 |
| ; CHECK-NEXT: [[TMP7:%.*]] = fmul <4 x double> [[TMP6]], [[TMP2]] |
| ; CHECK-NEXT: [[TMP8:%.*]] = fadd <4 x double> <double 6.000000e+00, double 2.000000e+00, double 3.000000e+00, double 4.000000e+00>, [[TMP7]] |
| ; CHECK-NEXT: [[TMP9:%.*]] = bitcast double* [[A]] to <4 x double>* |
| ; CHECK-NEXT: store <4 x double> [[TMP8]], <4 x double>* [[TMP9]], align 8 |
| ; CHECK-NEXT: ret i32 undef |
| ; |
| entry: |
| %0 = load double, double* %A, align 8 |
| %mul = fmul double %0, 7.900000e+00 |
| %conv = sitofp i32 %n to double |
| %mul1 = fmul double %conv, %mul |
| %add = fadd double %mul1, 6.000000e+00 |
| store double %add, double* %A, align 8 |
| %arrayidx3 = getelementptr inbounds double, double* %A, i64 1 |
| %1 = load double, double* %arrayidx3, align 8 |
| %mul4 = fmul double %1, 7.700000e+00 |
| %mul6 = fmul double %conv, %mul4 |
| %add7 = fadd double %mul6, 2.000000e+00 |
| store double %add7, double* %arrayidx3, align 8 |
| %arrayidx9 = getelementptr inbounds double, double* %A, i64 2 |
| %2 = load double, double* %arrayidx9, align 8 |
| %mul10 = fmul double %2, 7.600000e+00 |
| %mul12 = fmul double %conv, %mul10 |
| %add13 = fadd double %mul12, 3.000000e+00 |
| store double %add13, double* %arrayidx9, align 8 |
| %arrayidx15 = getelementptr inbounds double, double* %A, i64 3 |
| %3 = load double, double* %arrayidx15, align 8 |
| %mul16 = fmul double %3, 7.400000e+00 |
| %mul18 = fmul double %conv, %mul16 |
| %add19 = fadd double %mul18, 4.000000e+00 |
| store double %add19, double* %arrayidx15, align 8 |
| ret i32 undef |
| } |
| |
| ; int test2(double *G, int k) { |
| ; if (k) { |
| ; G[0] = 1+G[5]*4; |
| ; G[1] = 6+G[6]*3; |
| ; } else { |
| ; G[2] = 7+G[5]*4; |
| ; G[3] = 8+G[6]*3; |
| ; } |
| ; } |
| |
| ; We can't merge the gather sequences because one does not dominate the other. |
| |
| define i32 @test2(double* nocapture %G, i32 %k) { |
| ; CHECK-LABEL: @test2( |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i32 [[K:%.*]], 0 |
| ; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds double, double* [[G:%.*]], i64 5 |
| ; CHECK-NEXT: [[TMP3:%.*]] = load double, double* [[TMP2]], align 8 |
| ; CHECK-NEXT: [[TMP4:%.*]] = fmul double [[TMP3]], 4.000000e+00 |
| ; CHECK-NEXT: br i1 [[TMP1]], label [[TMP14:%.*]], label [[TMP5:%.*]] |
| ; CHECK: [[TMP6:%.*]] = getelementptr inbounds double, double* [[G]], i64 6 |
| ; CHECK-NEXT: [[TMP7:%.*]] = load double, double* [[TMP6]], align 8 |
| ; CHECK-NEXT: [[TMP8:%.*]] = fmul double [[TMP7]], 3.000000e+00 |
| ; CHECK-NEXT: [[TMP9:%.*]] = insertelement <2 x double> undef, double [[TMP4]], i32 0 |
| ; CHECK-NEXT: [[TMP10:%.*]] = insertelement <2 x double> [[TMP9]], double [[TMP8]], i32 1 |
| ; CHECK-NEXT: [[TMP11:%.*]] = fadd <2 x double> <double 1.000000e+00, double 6.000000e+00>, [[TMP10]] |
| ; CHECK-NEXT: [[TMP12:%.*]] = getelementptr inbounds double, double* [[G]], i64 1 |
| ; CHECK-NEXT: [[TMP13:%.*]] = bitcast double* [[G]] to <2 x double>* |
| ; CHECK-NEXT: store <2 x double> [[TMP11]], <2 x double>* [[TMP13]], align 8 |
| ; CHECK-NEXT: br label [[TMP24:%.*]] |
| ; CHECK: [[TMP15:%.*]] = getelementptr inbounds double, double* [[G]], i64 2 |
| ; CHECK-NEXT: [[TMP16:%.*]] = getelementptr inbounds double, double* [[G]], i64 6 |
| ; CHECK-NEXT: [[TMP17:%.*]] = load double, double* [[TMP16]], align 8 |
| ; CHECK-NEXT: [[TMP18:%.*]] = fmul double [[TMP17]], 3.000000e+00 |
| ; CHECK-NEXT: [[TMP19:%.*]] = insertelement <2 x double> undef, double [[TMP4]], i32 0 |
| ; CHECK-NEXT: [[TMP20:%.*]] = insertelement <2 x double> [[TMP19]], double [[TMP18]], i32 1 |
| ; CHECK-NEXT: [[TMP21:%.*]] = fadd <2 x double> <double 7.000000e+00, double 8.000000e+00>, [[TMP20]] |
| ; CHECK-NEXT: [[TMP22:%.*]] = getelementptr inbounds double, double* [[G]], i64 3 |
| ; CHECK-NEXT: [[TMP23:%.*]] = bitcast double* [[TMP15]] to <2 x double>* |
| ; CHECK-NEXT: store <2 x double> [[TMP21]], <2 x double>* [[TMP23]], align 8 |
| ; CHECK-NEXT: br label [[TMP24]] |
| ; CHECK: ret i32 undef |
| ; |
| %1 = icmp eq i32 %k, 0 |
| %2 = getelementptr inbounds double, double* %G, i64 5 |
| %3 = load double, double* %2, align 8 |
| %4 = fmul double %3, 4.000000e+00 |
| br i1 %1, label %12, label %5 |
| |
| ; <label>:5 ; preds = %0 |
| %6 = fadd double %4, 1.000000e+00 |
| store double %6, double* %G, align 8 |
| %7 = getelementptr inbounds double, double* %G, i64 6 |
| %8 = load double, double* %7, align 8 |
| %9 = fmul double %8, 3.000000e+00 |
| %10 = fadd double %9, 6.000000e+00 |
| %11 = getelementptr inbounds double, double* %G, i64 1 |
| store double %10, double* %11, align 8 |
| br label %20 |
| |
| ; <label>:12 ; preds = %0 |
| %13 = fadd double %4, 7.000000e+00 |
| %14 = getelementptr inbounds double, double* %G, i64 2 |
| store double %13, double* %14, align 8 |
| %15 = getelementptr inbounds double, double* %G, i64 6 |
| %16 = load double, double* %15, align 8 |
| %17 = fmul double %16, 3.000000e+00 |
| %18 = fadd double %17, 8.000000e+00 |
| %19 = getelementptr inbounds double, double* %G, i64 3 |
| store double %18, double* %19, align 8 |
| br label %20 |
| |
| ; <label>:20 ; preds = %12, %5 |
| ret i32 undef |
| } |
| |
| |
| ;int foo(double *A, int n) { |
| ; A[0] = A[0] * 7.9 * n + 6.0; |
| ; A[1] = A[1] * 7.9 * n + 6.0; |
| ; A[2] = A[2] * 7.9 * n + 6.0; |
| ; A[3] = A[3] * 7.9 * n + 6.0; |
| ;} |
| |
| define i32 @foo4(double* nocapture %A, i32 %n) { |
| ; CHECK-LABEL: @foo4( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[CONV:%.*]] = sitofp i32 [[N:%.*]] to double |
| ; CHECK-NEXT: [[ARRAYIDX3:%.*]] = getelementptr inbounds double, double* [[A:%.*]], i64 1 |
| ; CHECK-NEXT: [[ARRAYIDX9:%.*]] = getelementptr inbounds double, double* [[A]], i64 2 |
| ; CHECK-NEXT: [[ARRAYIDX15:%.*]] = getelementptr inbounds double, double* [[A]], i64 3 |
| ; CHECK-NEXT: [[TMP0:%.*]] = bitcast double* [[A]] to <4 x double>* |
| ; CHECK-NEXT: [[TMP1:%.*]] = load <4 x double>, <4 x double>* [[TMP0]], align 8 |
| ; CHECK-NEXT: [[TMP2:%.*]] = fmul <4 x double> <double 7.900000e+00, double 7.900000e+00, double 7.900000e+00, double 7.900000e+00>, [[TMP1]] |
| ; CHECK-NEXT: [[TMP3:%.*]] = insertelement <4 x double> undef, double [[CONV]], i32 0 |
| ; CHECK-NEXT: [[TMP4:%.*]] = insertelement <4 x double> [[TMP3]], double [[CONV]], i32 1 |
| ; CHECK-NEXT: [[TMP5:%.*]] = insertelement <4 x double> [[TMP4]], double [[CONV]], i32 2 |
| ; CHECK-NEXT: [[TMP6:%.*]] = insertelement <4 x double> [[TMP5]], double [[CONV]], i32 3 |
| ; CHECK-NEXT: [[TMP7:%.*]] = fmul <4 x double> [[TMP6]], [[TMP2]] |
| ; CHECK-NEXT: [[TMP8:%.*]] = fadd <4 x double> <double 6.000000e+00, double 6.000000e+00, double 6.000000e+00, double 6.000000e+00>, [[TMP7]] |
| ; CHECK-NEXT: [[TMP9:%.*]] = bitcast double* [[A]] to <4 x double>* |
| ; CHECK-NEXT: store <4 x double> [[TMP8]], <4 x double>* [[TMP9]], align 8 |
| ; CHECK-NEXT: ret i32 undef |
| ; |
| entry: |
| %0 = load double, double* %A, align 8 |
| %mul = fmul double %0, 7.900000e+00 |
| %conv = sitofp i32 %n to double |
| %mul1 = fmul double %conv, %mul |
| %add = fadd double %mul1, 6.000000e+00 |
| store double %add, double* %A, align 8 |
| %arrayidx3 = getelementptr inbounds double, double* %A, i64 1 |
| %1 = load double, double* %arrayidx3, align 8 |
| %mul4 = fmul double %1, 7.900000e+00 |
| %mul6 = fmul double %conv, %mul4 |
| %add7 = fadd double %mul6, 6.000000e+00 |
| store double %add7, double* %arrayidx3, align 8 |
| %arrayidx9 = getelementptr inbounds double, double* %A, i64 2 |
| %2 = load double, double* %arrayidx9, align 8 |
| %mul10 = fmul double %2, 7.900000e+00 |
| %mul12 = fmul double %conv, %mul10 |
| %add13 = fadd double %mul12, 6.000000e+00 |
| store double %add13, double* %arrayidx9, align 8 |
| %arrayidx15 = getelementptr inbounds double, double* %A, i64 3 |
| %3 = load double, double* %arrayidx15, align 8 |
| %mul16 = fmul double %3, 7.900000e+00 |
| %mul18 = fmul double %conv, %mul16 |
| %add19 = fadd double %mul18, 6.000000e+00 |
| store double %add19, double* %arrayidx15, align 8 |
| ret i32 undef |
| } |
| |
| ;int partial_mrg(double *A, int n) { |
| ; A[0] = A[0] * n; |
| ; A[1] = A[1] * n; |
| ; if (n < 4) return 0; |
| ; A[2] = A[2] * n; |
| ; A[3] = A[3] * (n+4); |
| ;} |
| |
| define i32 @partial_mrg(double* nocapture %A, i32 %n) { |
| ; CHECK-LABEL: @partial_mrg( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[CONV:%.*]] = sitofp i32 [[N:%.*]] to double |
| ; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds double, double* [[A:%.*]], i64 1 |
| ; CHECK-NEXT: [[TMP0:%.*]] = bitcast double* [[A]] to <2 x double>* |
| ; CHECK-NEXT: [[TMP1:%.*]] = load <2 x double>, <2 x double>* [[TMP0]], align 8 |
| ; CHECK-NEXT: [[TMP2:%.*]] = insertelement <2 x double> undef, double [[CONV]], i32 0 |
| ; CHECK-NEXT: [[TMP3:%.*]] = insertelement <2 x double> [[TMP2]], double [[CONV]], i32 1 |
| ; CHECK-NEXT: [[TMP4:%.*]] = fmul <2 x double> [[TMP3]], [[TMP1]] |
| ; CHECK-NEXT: [[TMP5:%.*]] = bitcast double* [[A]] to <2 x double>* |
| ; CHECK-NEXT: store <2 x double> [[TMP4]], <2 x double>* [[TMP5]], align 8 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[N]], 4 |
| ; CHECK-NEXT: br i1 [[CMP]], label [[RETURN:%.*]], label [[IF_END:%.*]] |
| ; CHECK: if.end: |
| ; CHECK-NEXT: [[ARRAYIDX7:%.*]] = getelementptr inbounds double, double* [[A]], i64 2 |
| ; CHECK-NEXT: [[ARRAYIDX11:%.*]] = getelementptr inbounds double, double* [[A]], i64 3 |
| ; CHECK-NEXT: [[TMP6:%.*]] = bitcast double* [[ARRAYIDX7]] to <2 x double>* |
| ; CHECK-NEXT: [[TMP7:%.*]] = load <2 x double>, <2 x double>* [[TMP6]], align 8 |
| ; CHECK-NEXT: [[ADD:%.*]] = add nsw i32 [[N]], 4 |
| ; CHECK-NEXT: [[CONV12:%.*]] = sitofp i32 [[ADD]] to double |
| ; CHECK-NEXT: [[TMP8:%.*]] = insertelement <2 x double> [[TMP2]], double [[CONV12]], i32 1 |
| ; CHECK-NEXT: [[TMP9:%.*]] = fmul <2 x double> [[TMP8]], [[TMP7]] |
| ; CHECK-NEXT: [[TMP10:%.*]] = bitcast double* [[ARRAYIDX7]] to <2 x double>* |
| ; CHECK-NEXT: store <2 x double> [[TMP9]], <2 x double>* [[TMP10]], align 8 |
| ; CHECK-NEXT: br label [[RETURN]] |
| ; CHECK: return: |
| ; CHECK-NEXT: ret i32 0 |
| ; |
| entry: |
| %0 = load double, double* %A, align 8 |
| %conv = sitofp i32 %n to double |
| %mul = fmul double %conv, %0 |
| store double %mul, double* %A, align 8 |
| %arrayidx2 = getelementptr inbounds double, double* %A, i64 1 |
| %1 = load double, double* %arrayidx2, align 8 |
| %mul4 = fmul double %conv, %1 |
| store double %mul4, double* %arrayidx2, align 8 |
| %cmp = icmp slt i32 %n, 4 |
| br i1 %cmp, label %return, label %if.end |
| |
| if.end: ; preds = %entry |
| %arrayidx7 = getelementptr inbounds double, double* %A, i64 2 |
| %2 = load double, double* %arrayidx7, align 8 |
| %mul9 = fmul double %conv, %2 |
| store double %mul9, double* %arrayidx7, align 8 |
| %arrayidx11 = getelementptr inbounds double, double* %A, i64 3 |
| %3 = load double, double* %arrayidx11, align 8 |
| %add = add nsw i32 %n, 4 |
| %conv12 = sitofp i32 %add to double |
| %mul13 = fmul double %conv12, %3 |
| store double %mul13, double* %arrayidx11, align 8 |
| br label %return |
| |
| return: ; preds = %entry, %if.end |
| ret i32 0 |
| } |
| |
| %class.B.53.55 = type { %class.A.52.54, double } |
| %class.A.52.54 = type { double, double, double } |
| |
| @a = external global double, align 8 |
| |
| define void @PR19646(%class.B.53.55* %this) { |
| ; CHECK-LABEL: @PR19646( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br i1 undef, label [[IF_END13:%.*]], label [[IF_END13]] |
| ; CHECK: sw.epilog7: |
| ; CHECK-NEXT: [[DOTIN:%.*]] = getelementptr inbounds [[CLASS_B_53_55:%.*]], %class.B.53.55* [[THIS:%.*]], i64 0, i32 0, i32 1 |
| ; CHECK-NEXT: [[TMP0:%.*]] = load double, double* [[DOTIN]], align 8 |
| ; CHECK-NEXT: [[ADD:%.*]] = fadd double undef, 0.000000e+00 |
| ; CHECK-NEXT: [[ADD6:%.*]] = fadd double [[ADD]], [[TMP0]] |
| ; CHECK-NEXT: [[TMP1:%.*]] = load double, double* @a, align 8 |
| ; CHECK-NEXT: [[ADD8:%.*]] = fadd double [[TMP1]], 0.000000e+00 |
| ; CHECK-NEXT: [[_DY:%.*]] = getelementptr inbounds [[CLASS_B_53_55]], %class.B.53.55* [[THIS]], i64 0, i32 0, i32 2 |
| ; CHECK-NEXT: [[TMP2:%.*]] = load double, double* [[_DY]], align 8 |
| ; CHECK-NEXT: [[ADD10:%.*]] = fadd double [[ADD8]], [[TMP2]] |
| ; CHECK-NEXT: br i1 undef, label [[IF_THEN12:%.*]], label [[IF_END13]] |
| ; CHECK: if.then12: |
| ; CHECK-NEXT: [[TMP3:%.*]] = load double, double* undef, align 8 |
| ; CHECK-NEXT: br label [[IF_END13]] |
| ; CHECK: if.end13: |
| ; CHECK-NEXT: [[X_1:%.*]] = phi double [ 0.000000e+00, [[IF_THEN12]] ], [ [[ADD6]], [[SW_EPILOG7:%.*]] ], [ undef, [[ENTRY:%.*]] ], [ undef, [[ENTRY]] ] |
| ; CHECK-NEXT: [[B_0:%.*]] = phi double [ [[TMP3]], [[IF_THEN12]] ], [ [[ADD10]], [[SW_EPILOG7]] ], [ undef, [[ENTRY]] ], [ undef, [[ENTRY]] ] |
| ; CHECK-NEXT: unreachable |
| ; |
| entry: |
| br i1 undef, label %if.end13, label %if.end13 |
| |
| sw.epilog7: ; No predecessors! |
| %.in = getelementptr inbounds %class.B.53.55, %class.B.53.55* %this, i64 0, i32 0, i32 1 |
| %0 = load double, double* %.in, align 8 |
| %add = fadd double undef, 0.000000e+00 |
| %add6 = fadd double %add, %0 |
| %1 = load double, double* @a, align 8 |
| %add8 = fadd double %1, 0.000000e+00 |
| %_dy = getelementptr inbounds %class.B.53.55, %class.B.53.55* %this, i64 0, i32 0, i32 2 |
| %2 = load double, double* %_dy, align 8 |
| %add10 = fadd double %add8, %2 |
| br i1 undef, label %if.then12, label %if.end13 |
| |
| if.then12: ; preds = %sw.epilog7 |
| %3 = load double, double* undef, align 8 |
| br label %if.end13 |
| |
| if.end13: ; preds = %if.then12, %sw.epilog7, %entry |
| %x.1 = phi double [ 0.000000e+00, %if.then12 ], [ %add6, %sw.epilog7 ], [ undef, %entry ], [ undef, %entry ] |
| %b.0 = phi double [ %3, %if.then12 ], [ %add10, %sw.epilog7 ], [ undef, %entry], [ undef, %entry ] |
| unreachable |
| } |