; 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.26 = external hidden unnamed_addr constant [14 x i8], align 1
@.str.27 = external hidden unnamed_addr constant [17 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

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

declare double @qrng_double(ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local void @test_memory_safety(ptr dead_on_unwind noalias writable sret(%struct.test_result_t) align 8 %0) #2 {
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca [1024 x i8], align 16
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #3
  store i32 1000, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  store i32 0, ptr %3, align 4, !tbaa !5
  br label %6

6:                                                ; preds = %20, %1
  %7 = load i32, ptr %3, align 4, !tbaa !5
  %8 = icmp slt i32 %7, 1000
  br i1 %8, label %10, label %9

9:                                                ; preds = %6
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  br label %23

10:                                               ; preds = %6
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  %11 = call i32 @qrng_init(ptr noundef %4, ptr noundef @.str, i64 noundef 23)
  call void @llvm.lifetime.start.p0(i64 1024, ptr %5) #3
  %12 = load ptr, ptr %4, align 8, !tbaa !9
  %13 = getelementptr inbounds [1024 x i8], ptr %5, i64 0, i64 0
  %14 = call i32 @qrng_bytes(ptr noundef %12, ptr noundef %13, i64 noundef 1024)
  %15 = load ptr, ptr %4, align 8, !tbaa !9
  %16 = call i64 @qrng_uint64(ptr noundef %15)
  %17 = load ptr, ptr %4, align 8, !tbaa !9
  %18 = call double @qrng_double(ptr noundef %17)
  %19 = load ptr, ptr %4, align 8, !tbaa !9
  call void @qrng_free(ptr noundef %19)
  call void @llvm.lifetime.end.p0(i64 1024, ptr %5) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  br label %20

20:                                               ; preds = %10
  %21 = load i32, ptr %3, align 4, !tbaa !5
  %22 = add nsw i32 %21, 1
  store i32 %22, ptr %3, align 4, !tbaa !5
  br label %6, !llvm.loop !11

23:                                               ; preds = %9
  %24 = getelementptr inbounds %struct.test_result_t, ptr %0, i32 0, i32 0
  store ptr @.str.26, ptr %24, align 8, !tbaa !13
  %25 = getelementptr inbounds %struct.test_result_t, ptr %0, i32 0, i32 1
  store i32 1, ptr %25, align 8, !tbaa !15
  %26 = getelementptr inbounds %struct.test_result_t, ptr %0, i32 0, i32 2
  store ptr @.str.27, ptr %26, align 8, !tbaa !16
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #3
  ret void
}

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, !10, i64 0}
!14 = !{!"", !10, i64 0, !6, i64 8, !10, i64 16}
!15 = !{!14, !6, i64 8}
!16 = !{!14, !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.26 = external hidden unnamed_addr constant [14 x i8], align 1
@.str.27 = external hidden unnamed_addr constant [17 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

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

declare double @qrng_double(ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local void @test_memory_safety(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
  %3 = alloca [1024 x i8], align 16
  br label %7

4:                                                ; preds = %7
  store ptr @.str.26, ptr %0, align 8, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %0, i64 8
  store i32 1, ptr %5, align 8, !tbaa !11
  %6 = getelementptr inbounds i8, ptr %0, i64 16
  store ptr @.str.27, ptr %6, align 8, !tbaa !12
  ret void

7:                                                ; preds = %1, %7
  %.02 = phi i32 [ 0, %1 ], [ %16, %7 ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #3
  %8 = call i32 @qrng_init(ptr noundef nonnull %2, ptr noundef nonnull @.str, i64 noundef 23) #3
  call void @llvm.lifetime.start.p0(i64 1024, ptr nonnull %3) #3
  %9 = load ptr, ptr %2, align 8, !tbaa !13
  %10 = call i32 @qrng_bytes(ptr noundef %9, ptr noundef nonnull %3, i64 noundef 1024) #3
  %11 = load ptr, ptr %2, align 8, !tbaa !13
  %12 = call i64 @qrng_uint64(ptr noundef %11) #3
  %13 = load ptr, ptr %2, align 8, !tbaa !13
  %14 = call double @qrng_double(ptr noundef %13) #3
  %15 = load ptr, ptr %2, align 8, !tbaa !13
  call void @qrng_free(ptr noundef %15) #3
  call void @llvm.lifetime.end.p0(i64 1024, ptr nonnull %3) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #3
  %16 = add nuw nsw i32 %.02, 1
  %exitcond.not = icmp eq i32 %16, 1000
  br i1 %exitcond.not, label %4, label %7, !llvm.loop !14
}

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, !7, i64 0}
!6 = !{!"", !7, i64 0, !10, i64 8, !7, i64 16}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!6, !10, i64 8}
!12 = !{!6, !7, i64 16}
!13 = !{!7, !7, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}


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