; LLVM IR from Dimandragon/non-parametric-dsp :: alglib-cpp/src/ap.ll (ZN6alglib10randomrealEv)

; 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: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZN11alglib_impl7ae_randEv() #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZN11alglib_impl11ae_rand_maxEv() #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef double @_ZN6alglib10randomrealEv() #0 {
  %1 = alloca double, align 8
  %2 = alloca double, align 8
  %3 = alloca double, align 8
  %4 = alloca double, align 8
  %5 = alloca double, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %1) #2
  %6 = call noundef i64 @_ZN11alglib_impl7ae_randEv()
  %7 = sitofp i64 %6 to double
  store double %7, ptr %1, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #2
  %8 = call noundef i64 @_ZN11alglib_impl7ae_randEv()
  %9 = sitofp i64 %8 to double
  store double %9, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #2
  %10 = call noundef i64 @_ZN11alglib_impl11ae_rand_maxEv()
  %11 = sitofp i64 %10 to double
  %12 = fadd double %11, 1.000000e+00
  store double %12, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #2
  %13 = load double, ptr %2, align 8, !tbaa !5
  %14 = load double, ptr %3, align 8, !tbaa !5
  %15 = fdiv double %13, %14
  store volatile double %15, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #2
  %16 = load double, ptr %1, align 8, !tbaa !5
  %17 = load volatile double, ptr %4, align 8, !tbaa !5
  %18 = fadd double %16, %17
  store volatile double %18, ptr %5, align 8, !tbaa !5
  %19 = load volatile double, ptr %5, align 8, !tbaa !5
  %20 = load double, ptr %3, align 8, !tbaa !5
  %21 = fdiv double %19, %20
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %1) #2
  ret double %21
}

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 nounwind uwtable
declare dso_local noundef i64 @_ZN11alglib_impl7ae_randEv() local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZN11alglib_impl11ae_rand_maxEv() local_unnamed_addr #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef double @_ZN6alglib10randomrealEv() local_unnamed_addr #0 {
  %1 = alloca double, align 8
  %2 = alloca double, align 8
  %3 = tail call noundef i64 @_ZN11alglib_impl7ae_randEv()
  %4 = sitofp i64 %3 to double
  %5 = tail call noundef i64 @_ZN11alglib_impl7ae_randEv()
  %6 = sitofp i64 %5 to double
  %7 = tail call noundef i64 @_ZN11alglib_impl11ae_rand_maxEv()
  %8 = sitofp i64 %7 to double
  %9 = fadd double %8, 1.000000e+00
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1)
  %10 = fdiv double %6, %9
  store volatile double %10, ptr %1, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2)
  %.0..0..0..0.1 = load volatile double, ptr %1, align 8, !tbaa !5
  %11 = fadd double %.0..0..0..0.1, %4
  store volatile double %11, ptr %2, align 8, !tbaa !5
  %.0..0..0..0. = load volatile double, ptr %2, align 8, !tbaa !5
  %12 = fdiv double %.0..0..0..0., %9
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1)
  ret double %12
}

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }

!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"}


; Effective O3 passes: CorrelatedValuePropagationPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,ReassociatePass,SROAPass,TailCallElimPass