; LLVM IR from intel/cryptography-primitives :: sources/ippcp/gfpec (pcpgfpxstuff)

; 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: nounwind uwtable
define dso_local i32 @cpGFpGetOptimalWinSize(i32 noundef %0) #0 {
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store i32 %0, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #2
  store i32 1, ptr %3, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #2
  %8 = load i32, ptr %2, align 4, !tbaa !5
  %9 = load i32, ptr %3, align 4, !tbaa !5
  %10 = call i32 @getNumOperations(i32 noundef %8, i32 noundef %9)
  store i32 %10, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #2
  %11 = load i32, ptr %3, align 4, !tbaa !5
  %12 = add nsw i32 %11, 1
  store i32 %12, ptr %5, align 4, !tbaa !5
  br label %13

13:                                               ; preds = %30, %1
  %14 = load i32, ptr %5, align 4, !tbaa !5
  %15 = icmp sle i32 %14, 6
  br i1 %15, label %16, label %33

16:                                               ; preds = %13
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #2
  %17 = load i32, ptr %2, align 4, !tbaa !5
  %18 = load i32, ptr %5, align 4, !tbaa !5
  %19 = call i32 @getNumOperations(i32 noundef %17, i32 noundef %18)
  store i32 %19, ptr %6, align 4, !tbaa !5
  %20 = load i32, ptr %6, align 4, !tbaa !5
  %21 = load i32, ptr %4, align 4, !tbaa !5
  %22 = icmp sge i32 %20, %21
  br i1 %22, label %23, label %24

23:                                               ; preds = %16
  store i32 2, ptr %7, align 4
  br label %27

24:                                               ; preds = %16
  %25 = load i32, ptr %5, align 4, !tbaa !5
  store i32 %25, ptr %3, align 4, !tbaa !5
  %26 = load i32, ptr %6, align 4, !tbaa !5
  store i32 %26, ptr %4, align 4, !tbaa !5
  store i32 0, ptr %7, align 4
  br label %27

27:                                               ; preds = %24, %23
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #2
  %28 = load i32, ptr %7, align 4
  switch i32 %28, label %35 [
    i32 0, label %29
    i32 2, label %33
  ]

29:                                               ; preds = %27
  br label %30

30:                                               ; preds = %29
  %31 = load i32, ptr %5, align 4, !tbaa !5
  %32 = add nsw i32 %31, 1
  store i32 %32, ptr %5, align 4, !tbaa !5
  br label %13, !llvm.loop !9

33:                                               ; preds = %27, %13
  %34 = load i32, ptr %3, align 4, !tbaa !5
  store i32 1, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #2
  ret i32 %34

35:                                               ; preds = %27
  unreachable
}

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

; Function Attrs: nounwind uwtable
declare hidden i32 @getNumOperations(i32 noundef, i32 noundef) #0

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

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

; Function Attrs: nounwind uwtable
define dso_local i32 @cpGFpGetOptimalWinSize(i32 noundef %0) local_unnamed_addr #0 {
  %2 = tail call i32 @getNumOperations(i32 noundef %0, i32 noundef 1)
  %3 = tail call i32 @getNumOperations(i32 noundef %0, i32 noundef 2)
  %.not = icmp slt i32 %3, %2
  br i1 %.not, label %4, label %12

4:                                                ; preds = %1
  %5 = tail call i32 @getNumOperations(i32 noundef %0, i32 noundef 3)
  %.not.1 = icmp slt i32 %5, %3
  br i1 %.not.1, label %6, label %12

6:                                                ; preds = %4
  %7 = tail call i32 @getNumOperations(i32 noundef %0, i32 noundef 4)
  %.not.2 = icmp slt i32 %7, %5
  br i1 %.not.2, label %8, label %12

8:                                                ; preds = %6
  %9 = tail call i32 @getNumOperations(i32 noundef %0, i32 noundef 5)
  %.not.3 = icmp slt i32 %9, %7
  br i1 %.not.3, label %10, label %12

10:                                               ; preds = %8
  %11 = tail call i32 @getNumOperations(i32 noundef %0, i32 noundef 6)
  %.not.4 = icmp slt i32 %11, %9
  %spec.select = select i1 %.not.4, i32 6, i32 5
  br label %12

12:                                               ; preds = %10, %8, %6, %4, %1
  %.013.lcssa = phi i32 [ 1, %1 ], [ 2, %4 ], [ 3, %6 ], [ 4, %8 ], [ %spec.select, %10 ]
  ret i32 %.013.lcssa
}

; Function Attrs: nounwind uwtable
declare hidden i32 @getNumOperations(i32 noundef, i32 noundef) local_unnamed_addr #0

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)"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,LCSSAPass,LoopRotatePass,SROAPass,SimplifyCFGPass,TailCallElimPass