; LLVM IR from Robert-van-Engelen/lisp-cheney :: src (lisp-cheney)

; 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"

@nil = external dso_local global double, align 8

; 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: nounwind uwtable
declare dso_local double @car(double noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local double @cdr(double noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local double @pair(double noundef, double noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local i32 @more(double noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local void @var(i32 noundef, ...) #1

; Function Attrs: nounwind uwtable
declare dso_local double @ret(i32 noundef, double noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local double @eval(double noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local double @f_begin(ptr noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local double @f_let(ptr noundef %0, ptr noundef %1) #1 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca double, align 8
  %6 = alloca double, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #2
  %7 = load ptr, ptr %4, align 8, !tbaa !5
  %8 = load double, ptr %7, align 8, !tbaa !9
  store double %8, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #2
  %9 = load double, ptr @nil, align 8, !tbaa !9
  store double %9, ptr %6, align 8, !tbaa !9
  call void (i32, ...) @var(i32 noundef 2, ptr noundef %5, ptr noundef %6)
  br label %10

10:                                               ; preds = %31, %2
  %11 = load ptr, ptr %3, align 8, !tbaa !5
  %12 = load double, ptr %11, align 8, !tbaa !9
  %13 = call i32 @more(double noundef %12)
  %14 = icmp ne i32 %13, 0
  br i1 %14, label %15, label %36

15:                                               ; preds = %10
  %16 = load ptr, ptr %3, align 8, !tbaa !5
  %17 = load double, ptr %16, align 8, !tbaa !9
  %18 = call double @car(double noundef %17)
  %19 = call double @cdr(double noundef %18)
  store double %19, ptr %6, align 8, !tbaa !9
  %20 = load ptr, ptr %4, align 8, !tbaa !5
  %21 = call double @f_begin(ptr noundef %6, ptr noundef %20)
  %22 = call double @eval(double noundef %21, ptr noundef %5)
  store double %22, ptr %6, align 8, !tbaa !9
  %23 = load ptr, ptr %3, align 8, !tbaa !5
  %24 = load double, ptr %23, align 8, !tbaa !9
  %25 = call double @car(double noundef %24)
  %26 = call double @car(double noundef %25)
  %27 = load double, ptr %6, align 8, !tbaa !9
  %28 = load ptr, ptr %4, align 8, !tbaa !5
  %29 = call double @pair(double noundef %26, double noundef %27, ptr noundef %28)
  %30 = load ptr, ptr %4, align 8, !tbaa !5
  store double %29, ptr %30, align 8, !tbaa !9
  br label %31

31:                                               ; preds = %15
  %32 = load ptr, ptr %3, align 8, !tbaa !5
  %33 = load double, ptr %32, align 8, !tbaa !9
  %34 = call double @cdr(double noundef %33)
  %35 = load ptr, ptr %3, align 8, !tbaa !5
  store double %34, ptr %35, align 8, !tbaa !9
  br label %10, !llvm.loop !11

36:                                               ; preds = %10
  %37 = load ptr, ptr %3, align 8, !tbaa !5
  %38 = load double, ptr %37, align 8, !tbaa !9
  %39 = call double @car(double noundef %38)
  %40 = call double @ret(i32 noundef 2, double noundef %39)
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #2
  ret double %40
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"double", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


; 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"

@nil = external dso_local local_unnamed_addr global double, align 8

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

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

; Function Attrs: nounwind uwtable
declare dso_local double @car(double noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
declare dso_local double @cdr(double noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
declare dso_local double @pair(double noundef, double noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
declare dso_local i32 @more(double noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
declare dso_local void @var(i32 noundef, ...) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
declare dso_local double @ret(i32 noundef, double noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
declare dso_local double @eval(double noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
declare dso_local double @f_begin(ptr noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local double @f_let(ptr nocapture noundef %0, ptr noundef %1) local_unnamed_addr #1 {
  %3 = alloca double, align 8
  %4 = alloca double, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #2
  %5 = load double, ptr %1, align 8, !tbaa !5
  store double %5, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #2
  %6 = load double, ptr @nil, align 8, !tbaa !5
  store double %6, ptr %4, align 8, !tbaa !5
  call void (i32, ...) @var(i32 noundef 2, ptr noundef nonnull %3, ptr noundef nonnull %4)
  %7 = load double, ptr %0, align 8, !tbaa !5
  %8 = call i32 @more(double noundef %7)
  %.not10 = icmp eq i32 %8, 0
  br i1 %.not10, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %2, %.lr.ph
  %9 = load double, ptr %0, align 8, !tbaa !5
  %10 = call double @car(double noundef %9)
  %11 = call double @cdr(double noundef %10)
  store double %11, ptr %4, align 8, !tbaa !5
  %12 = call double @f_begin(ptr noundef nonnull %4, ptr noundef nonnull %1)
  %13 = call double @eval(double noundef %12, ptr noundef nonnull %3)
  store double %13, ptr %4, align 8, !tbaa !5
  %14 = load double, ptr %0, align 8, !tbaa !5
  %15 = call double @car(double noundef %14)
  %16 = call double @car(double noundef %15)
  %17 = load double, ptr %4, align 8, !tbaa !5
  %18 = call double @pair(double noundef %16, double noundef %17, ptr noundef nonnull %1)
  store double %18, ptr %1, align 8, !tbaa !5
  %19 = load double, ptr %0, align 8, !tbaa !5
  %20 = call double @cdr(double noundef %19)
  store double %20, ptr %0, align 8, !tbaa !5
  %21 = call i32 @more(double noundef %20)
  %.not = icmp eq i32 %21, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !9

._crit_edge:                                      ; preds = %.lr.ph, %2
  %22 = load double, ptr %0, align 8, !tbaa !5
  %23 = call double @car(double noundef %22)
  %24 = call double @ret(i32 noundef 2, double noundef %23)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #2
  ret double %24
}

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass