; LLVM IR from aws/s2n-tls :: utils (s2n_timer)

; 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"

%struct.s2n_result = type { i32 }
%struct.s2n_timer = type { i64 }

; Function Attrs: nounwind uwtable
declare dso_local i32 @s2n_timer_start(ptr noundef, ptr noundef) #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: nounwind uwtable
define dso_local i32 @s2n_timer_reset(ptr noundef %0, ptr noundef %1, ptr noundef %2) #0 {
  %4 = alloca %struct.s2n_result, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i64, align 8
  %9 = alloca %struct.s2n_result, align 4
  %10 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %11 = load ptr, ptr %6, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.s2n_timer, ptr %11, i32 0, i32 0
  %13 = load i64, ptr %12, align 8, !tbaa !9
  store i64 %13, ptr %8, align 8, !tbaa !12
  br label %14

14:                                               ; preds = %3
  %15 = load ptr, ptr %5, align 8, !tbaa !5
  %16 = load ptr, ptr %6, align 8, !tbaa !5
  %17 = call i32 @s2n_timer_start(ptr noundef %15, ptr noundef %16)
  %18 = getelementptr inbounds %struct.s2n_result, ptr %9, i32 0, i32 0
  store i32 %17, ptr %18, align 4
  %19 = getelementptr inbounds %struct.s2n_result, ptr %9, i32 0, i32 0
  %20 = load i32, ptr %19, align 4
  %21 = call zeroext i1 @s2n_result_is_ok(i32 %20)
  br i1 %21, label %24, label %22

22:                                               ; preds = %14
  %23 = getelementptr inbounds %struct.s2n_result, ptr %4, i32 0, i32 0
  store i32 -1, ptr %23, align 4, !tbaa !13
  store i32 1, ptr %10, align 4
  br label %34

24:                                               ; preds = %14
  br label %25

25:                                               ; preds = %24
  br label %26

26:                                               ; preds = %25
  %27 = load ptr, ptr %6, align 8, !tbaa !5
  %28 = getelementptr inbounds %struct.s2n_timer, ptr %27, i32 0, i32 0
  %29 = load i64, ptr %28, align 8, !tbaa !9
  %30 = load i64, ptr %8, align 8, !tbaa !12
  %31 = sub i64 %29, %30
  %32 = load ptr, ptr %7, align 8, !tbaa !5
  store i64 %31, ptr %32, align 8, !tbaa !12
  %33 = getelementptr inbounds %struct.s2n_result, ptr %4, i32 0, i32 0
  store i32 0, ptr %33, align 4, !tbaa !13
  store i32 1, ptr %10, align 4
  br label %34

34:                                               ; preds = %26, %22
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  %35 = getelementptr inbounds %struct.s2n_result, ptr %4, i32 0, i32 0
  %36 = load i32, ptr %35, align 4
  ret i32 %36
}

; Function Attrs: inlinehint nounwind uwtable
declare hidden zeroext i1 @s2n_result_is_ok(i32) #2

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 = { inlinehint 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 #3 = { 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, !11, i64 0}
!10 = !{!"s2n_timer", !11, i64 0}
!11 = !{!"long", !7, i64 0}
!12 = !{!11, !11, i64 0}
!13 = !{!14, !15, i64 0}
!14 = !{!"", !15, i64 0}
!15 = !{!"int", !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"

; Function Attrs: nounwind uwtable
declare dso_local i32 @s2n_timer_start(ptr noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local range(i32 -1, 1) i32 @s2n_timer_reset(ptr noundef %0, ptr noundef %1, ptr nocapture noundef writeonly %2) local_unnamed_addr #0 {
  %4 = load i64, ptr %1, align 8, !tbaa !5
  %5 = tail call i32 @s2n_timer_start(ptr noundef %0, ptr noundef nonnull %1)
  %6 = tail call zeroext i1 @s2n_result_is_ok(i32 %5)
  br i1 %6, label %7, label %10

7:                                                ; preds = %3
  %8 = load i64, ptr %1, align 8, !tbaa !5
  %9 = sub i64 %8, %4
  store i64 %9, ptr %2, align 8, !tbaa !10
  br label %10

10:                                               ; preds = %3, %7
  %.sroa.05.0 = phi i32 [ 0, %7 ], [ -1, %3 ]
  ret i32 %.sroa.05.0
}

; Function Attrs: inlinehint nounwind uwtable
declare hidden zeroext i1 @s2n_result_is_ok(i32) local_unnamed_addr #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 = { inlinehint 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, !7, i64 0}
!6 = !{!"s2n_timer", !7, i64 0}
!7 = !{!"long", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!7, !7, i64 0}


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