; LLVM IR from MBMS/C-CODE_FOR_MEMBRANE_BASED_MODEL :: CODE_MODEL/Membrane.ll (ZN8Membrane10airpermeatEdddd)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef double @_ZN8Membrane10airpermeatEdddd(double noundef %0, double noundef %1, double noundef %2, double noundef %3) #1 {
  %5 = alloca double, align 8
  %6 = alloca double, align 8
  %7 = alloca double, align 8
  %8 = alloca double, align 8
  %9 = alloca double, align 8
  %10 = alloca double, align 8
  %11 = alloca double, align 8
  %12 = alloca double, align 8
  %13 = alloca double, align 8
  store double %0, ptr %5, align 8, !tbaa !5
  store double %1, ptr %6, align 8, !tbaa !5
  store double %2, ptr %7, align 8, !tbaa !5
  store double %3, ptr %8, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #2
  store double 0.000000e+00, ptr %9, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #2
  %14 = load double, ptr %9, align 8, !tbaa !5
  store double %14, ptr %10, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #2
  %15 = load double, ptr %5, align 8, !tbaa !5
  %16 = fmul double %15, 1.800000e+01
  %17 = load double, ptr %7, align 8, !tbaa !5
  %18 = load double, ptr %7, align 8, !tbaa !5
  %19 = fadd double 1.000000e+00, %18
  %20 = fdiv double %17, %19
  %21 = fmul double %16, %20
  %22 = load double, ptr %7, align 8, !tbaa !5
  %23 = fadd double 1.000000e+00, %22
  %24 = fdiv double 1.800000e+01, %23
  %25 = load double, ptr %7, align 8, !tbaa !5
  %26 = fmul double 2.900000e+01, %25
  %27 = load double, ptr %7, align 8, !tbaa !5
  %28 = fadd double 1.000000e+00, %27
  %29 = fdiv double %26, %28
  %30 = fadd double %24, %29
  %31 = fdiv double %21, %30
  store double %31, ptr %11, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #2
  %32 = load double, ptr %6, align 8, !tbaa !5
  %33 = fmul double %32, 1.800000e+01
  %34 = load double, ptr %8, align 8, !tbaa !5
  %35 = load double, ptr %8, align 8, !tbaa !5
  %36 = fadd double 1.000000e+00, %35
  %37 = fdiv double %34, %36
  %38 = fmul double %33, %37
  %39 = load double, ptr %8, align 8, !tbaa !5
  %40 = fadd double 1.000000e+00, %39
  %41 = fdiv double 1.800000e+01, %40
  %42 = load double, ptr %8, align 8, !tbaa !5
  %43 = fmul double 2.900000e+01, %42
  %44 = load double, ptr %8, align 8, !tbaa !5
  %45 = fadd double 1.000000e+00, %44
  %46 = fdiv double %43, %45
  %47 = fadd double %41, %46
  %48 = fdiv double %38, %47
  store double %48, ptr %12, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #2
  %49 = load double, ptr %10, align 8, !tbaa !5
  %50 = load double, ptr %11, align 8, !tbaa !5
  %51 = load double, ptr %12, align 8, !tbaa !5
  %52 = fsub double %50, %51
  %53 = fmul double %49, %52
  store double %53, ptr %13, align 8, !tbaa !5
  %54 = load double, ptr %13, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #2
  ret double %54
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"double", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none) uwtable
define dso_local noundef double @_ZN8Membrane10airpermeatEdddd(double noundef %0, double noundef %1, double noundef %2, double noundef %3) local_unnamed_addr #0 {
  %5 = insertelement <2 x double> poison, double %0, i64 0
  %6 = insertelement <2 x double> %5, double %1, i64 1
  %7 = fmul <2 x double> %6, <double 1.800000e+01, double 1.800000e+01>
  %8 = insertelement <2 x double> poison, double %2, i64 0
  %9 = insertelement <2 x double> %8, double %3, i64 1
  %10 = fadd <2 x double> %9, <double 1.000000e+00, double 1.000000e+00>
  %11 = fmul <2 x double> %9, <double 2.900000e+01, double 2.900000e+01>
  %12 = fdiv <2 x double> %9, %10
  %13 = fmul <2 x double> %7, %12
  %14 = fdiv <2 x double> <double 1.800000e+01, double 1.800000e+01>, %10
  %15 = fdiv <2 x double> %11, %10
  %16 = fadd <2 x double> %14, %15
  %17 = fdiv <2 x double> %13, %16
  %shift = shufflevector <2 x double> %17, <2 x double> poison, <2 x i32> <i32 1, i32 poison>
  %18 = fsub <2 x double> %17, %shift
  %19 = extractelement <2 x double> %18, i64 0
  %20 = fmul double %19, 0.000000e+00
  ret double %20
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(none) uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SLPVectorizerPass,SROAPass,VectorCombinePass