; 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 i64, align 8
@tr = external dso_local global i64, 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 i32 @more(double noundef) #1

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

; Function Attrs: nounwind uwtable
define dso_local double @f_trace(ptr noundef %0, ptr noundef %1) #1 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i64, 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
  %6 = load i64, ptr @tr, align 8, !tbaa !9
  store i64 %6, ptr %5, align 8, !tbaa !9
  %7 = load ptr, ptr %3, align 8, !tbaa !5
  %8 = load i64, ptr %7, align 8, !tbaa !9
  %9 = lshr i64 %8, 48
  %10 = load i64, ptr @NIL, align 8, !tbaa !9
  %11 = icmp eq i64 %9, %10
  br i1 %11, label %12, label %13

12:                                               ; preds = %2
  br label %17

13:                                               ; preds = %2
  %14 = load ptr, ptr %3, align 8, !tbaa !5
  %15 = load double, ptr %14, align 8, !tbaa !11
  %16 = call double @car(double noundef %15)
  br label %17

17:                                               ; preds = %13, %12
  %18 = phi double [ 1.000000e+00, %12 ], [ %16, %13 ]
  %19 = fptoui double %18 to i64
  store i64 %19, ptr @tr, align 8, !tbaa !9
  %20 = load ptr, ptr %3, align 8, !tbaa !5
  %21 = load double, ptr %20, align 8, !tbaa !11
  %22 = call i32 @more(double noundef %21)
  %23 = icmp ne i32 %22, 0
  br i1 %23, label %24, label %35

24:                                               ; preds = %17
  %25 = load ptr, ptr %3, align 8, !tbaa !5
  %26 = load double, ptr %25, align 8, !tbaa !11
  %27 = call double @cdr(double noundef %26)
  %28 = call double @car(double noundef %27)
  %29 = load ptr, ptr %4, align 8, !tbaa !5
  %30 = call double @eval(double noundef %28, ptr noundef %29)
  %31 = load ptr, ptr %3, align 8, !tbaa !5
  store double %30, ptr %31, align 8, !tbaa !11
  %32 = load i64, ptr %5, align 8, !tbaa !9
  store i64 %32, ptr @tr, align 8, !tbaa !9
  %33 = load ptr, ptr %3, align 8, !tbaa !5
  %34 = load double, ptr %33, align 8, !tbaa !11
  br label %38

35:                                               ; preds = %17
  %36 = load i64, ptr @tr, align 8, !tbaa !9
  %37 = uitofp i64 %36 to double
  br label %38

38:                                               ; preds = %35, %24
  %39 = phi double [ %34, %24 ], [ %37, %35 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #2
  ret double %39
}

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 = !{!"long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"double", !7, i64 0}


; 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 i64, align 8
@tr = external dso_local local_unnamed_addr global i64, align 8

; Function Attrs: nounwind uwtable
declare dso_local double @car(double noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local double @cdr(double noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local i32 @more(double noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local double @eval(double noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local double @f_trace(ptr nocapture noundef %0, ptr noundef %1) local_unnamed_addr #0 {
  %3 = load i64, ptr @tr, align 8, !tbaa !5
  %4 = load i64, ptr %0, align 8
  %5 = lshr i64 %4, 48
  %6 = load i64, ptr @NIL, align 8, !tbaa !5
  %7 = icmp eq i64 %5, %6
  %8 = bitcast i64 %4 to double
  br i1 %7, label %12, label %9

9:                                                ; preds = %2
  %10 = tail call double @car(double noundef %8)
  %11 = fptoui double %10 to i64
  %.pre = load double, ptr %0, align 8, !tbaa !9
  br label %12

12:                                               ; preds = %2, %9
  %13 = phi double [ %.pre, %9 ], [ %8, %2 ]
  %14 = phi i64 [ %11, %9 ], [ 1, %2 ]
  store i64 %14, ptr @tr, align 8, !tbaa !5
  %15 = tail call i32 @more(double noundef %13)
  %.not = icmp eq i32 %15, 0
  br i1 %.not, label %21, label %16

16:                                               ; preds = %12
  %17 = load double, ptr %0, align 8, !tbaa !9
  %18 = tail call double @cdr(double noundef %17)
  %19 = tail call double @car(double noundef %18)
  %20 = tail call double @eval(double noundef %19, ptr noundef %1)
  store double %20, ptr %0, align 8, !tbaa !9
  store i64 %3, ptr @tr, align 8, !tbaa !5
  br label %24

21:                                               ; preds = %12
  %22 = load i64, ptr @tr, align 8, !tbaa !5
  %23 = uitofp i64 %22 to double
  br label %24

24:                                               ; preds = %21, %16
  %25 = phi double [ %20, %16 ], [ %23, %21 ]
  ret double %25
}

attributes #0 = { 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" }

!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 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"double", !7, i64 0}


; Effective O3 passes: GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass