; LLVM IR from tsotchke/quantum_rng :: tests (comprehensive_test)

; 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.test_result_t = type { ptr, i32, ptr }

@.str = external hidden unnamed_addr constant [24 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.24 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.25 = external hidden unnamed_addr constant [30 x i8], align 1

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

declare i32 @qrng_init(ptr noundef, ptr noundef, i64 noundef) #1

declare void @qrng_free(ptr noundef) #1

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

declare i64 @qrng_uint64(ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local void @test_entropy(ptr dead_on_unwind noalias writable sret(%struct.test_result_t) align 8 %0) #2 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca double, align 8
  %5 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #3
  %6 = call i32 @qrng_init(ptr noundef %2, ptr noundef @.str, i64 noundef 23)
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  store i32 0, ptr %3, align 4, !tbaa !5
  br label %7

7:                                                ; preds = %14, %1
  %8 = load i32, ptr %3, align 4, !tbaa !5
  %9 = icmp slt i32 %8, 1000
  br i1 %9, label %11, label %10

10:                                               ; preds = %7
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  br label %17

11:                                               ; preds = %7
  %12 = load ptr, ptr %2, align 8, !tbaa !9
  %13 = call i64 @qrng_uint64(ptr noundef %12)
  br label %14

14:                                               ; preds = %11
  %15 = load i32, ptr %3, align 4, !tbaa !5
  %16 = add nsw i32 %15, 1
  store i32 %16, ptr %3, align 4, !tbaa !5
  br label %7, !llvm.loop !11

17:                                               ; preds = %10
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  %18 = load ptr, ptr %2, align 8, !tbaa !9
  %19 = call double @qrng_get_entropy_estimate(ptr noundef %18)
  store double %19, ptr %4, align 8, !tbaa !13
  %20 = load ptr, ptr %2, align 8, !tbaa !9
  call void @qrng_free(ptr noundef %20)
  %21 = load double, ptr %4, align 8, !tbaa !13
  %22 = fcmp olt double %21, 0.000000e+00
  br i1 %22, label %26, label %23

23:                                               ; preds = %17
  %24 = load double, ptr %4, align 8, !tbaa !13
  %25 = fcmp ogt double %24, 6.400000e+01
  br i1 %25, label %26, label %30

26:                                               ; preds = %23, %17
  %27 = getelementptr inbounds %struct.test_result_t, ptr %0, i32 0, i32 0
  store ptr @.str.24, ptr %27, align 8, !tbaa !15
  %28 = getelementptr inbounds %struct.test_result_t, ptr %0, i32 0, i32 1
  store i32 0, ptr %28, align 8, !tbaa !17
  %29 = getelementptr inbounds %struct.test_result_t, ptr %0, i32 0, i32 2
  store ptr @.str.25, ptr %29, align 8, !tbaa !18
  store i32 1, ptr %5, align 4
  br label %34

30:                                               ; preds = %23
  %31 = getelementptr inbounds %struct.test_result_t, ptr %0, i32 0, i32 0
  store ptr @.str.24, ptr %31, align 8, !tbaa !15
  %32 = getelementptr inbounds %struct.test_result_t, ptr %0, i32 0, i32 1
  store i32 1, ptr %32, align 8, !tbaa !17
  %33 = getelementptr inbounds %struct.test_result_t, ptr %0, i32 0, i32 2
  store ptr @.str.3, ptr %33, align 8, !tbaa !18
  store i32 1, ptr %5, align 4
  br label %34

34:                                               ; preds = %30, %26
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #3
  ret void
}

declare double @qrng_get_entropy_estimate(ptr noundef) #1

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { "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 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!14, !14, i64 0}
!14 = !{!"double", !7, i64 0}
!15 = !{!16, !10, i64 0}
!16 = !{!"", !10, i64 0, !6, i64 8, !10, i64 16}
!17 = !{!16, !6, i64 8}
!18 = !{!16, !10, i64 16}


; 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"

%struct.test_result_t = type { ptr, i32, ptr }

@.str = external hidden unnamed_addr constant [24 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.24 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.25 = external hidden unnamed_addr constant [30 x i8], align 1

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

declare i32 @qrng_init(ptr noundef, ptr noundef, i64 noundef) local_unnamed_addr #1

declare void @qrng_free(ptr noundef) local_unnamed_addr #1

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

declare i64 @qrng_uint64(ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local void @test_entropy(ptr dead_on_unwind noalias nocapture writable writeonly sret(%struct.test_result_t) align 8 %0) local_unnamed_addr #2 {
  %2 = alloca ptr, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #3
  %3 = call i32 @qrng_init(ptr noundef nonnull %2, ptr noundef nonnull @.str, i64 noundef 23) #3
  br label %12

4:                                                ; preds = %12
  %5 = load ptr, ptr %2, align 8, !tbaa !5
  %6 = call double @qrng_get_entropy_estimate(ptr noundef %5) #3
  %7 = load ptr, ptr %2, align 8, !tbaa !5
  call void @qrng_free(ptr noundef %7) #3
  %8 = fcmp uge double %6, 0.000000e+00
  %9 = fcmp ule double %6, 6.400000e+01
  %or.cond.not = and i1 %8, %9
  %spec.select = zext i1 %or.cond.not to i32
  %spec.select5 = select i1 %or.cond.not, ptr @.str.3, ptr @.str.25
  store ptr @.str.24, ptr %0, align 8
  %10 = getelementptr inbounds i8, ptr %0, i64 8
  store i32 %spec.select, ptr %10, align 8
  %11 = getelementptr inbounds i8, ptr %0, i64 16
  store ptr %spec.select5, ptr %11, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #3
  ret void

12:                                               ; preds = %1, %12
  %.04 = phi i32 [ 0, %1 ], [ %15, %12 ]
  %13 = load ptr, ptr %2, align 8, !tbaa !5
  %14 = call i64 @qrng_uint64(ptr noundef %13) #3
  %15 = add nuw nsw i32 %.04, 1
  %exitcond.not = icmp eq i32 %15, 1000
  br i1 %exitcond.not, label %4, label %12, !llvm.loop !9
}

declare double @qrng_get_entropy_estimate(ptr noundef) local_unnamed_addr #1

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


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,MergedLoadStoreMotionPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass