; LLVM IR from PyCee/NUS_library :: src/gpu (NUS_multi_gpu)

; 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.NUS_multi_gpu = type { ptr, i32 }
%struct.NUS_gpu = type { ptr, ptr, ptr, %struct.NUS_vk_device_functions, ptr, ptr, %struct.VkPhysicalDeviceMemoryProperties, i32, i32 }
%struct.NUS_vk_device_functions = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }
%struct.VkPhysicalDeviceMemoryProperties = type { i32, [32 x %struct.VkMemoryType], i32, [16 x %struct.VkMemoryHeap] }
%struct.VkMemoryType = type { i32, i32 }
%struct.VkMemoryHeap = type { i64, i32 }

@.str.5 = external hidden unnamed_addr constant [44 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 @printf(ptr noundef, ...) #1

; 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
define dso_local i32 @nus_multi_gpu_submit_commands(ptr %0, i32 %1) #2 {
  %3 = alloca i32, align 4
  %4 = alloca %struct.NUS_multi_gpu, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = getelementptr inbounds { ptr, i32 }, ptr %4, i32 0, i32 0
  store ptr %0, ptr %7, align 8
  %8 = getelementptr inbounds { ptr, i32 }, ptr %4, i32 0, i32 1
  store i32 %1, ptr %8, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  store i32 0, ptr %5, align 4, !tbaa !5
  br label %9

9:                                                ; preds = %25, %2
  %10 = load i32, ptr %5, align 4, !tbaa !5
  %11 = getelementptr inbounds %struct.NUS_multi_gpu, ptr %4, i32 0, i32 1
  %12 = load i32, ptr %11, align 8, !tbaa !9
  %13 = icmp ult i32 %10, %12
  br i1 %13, label %14, label %28

14:                                               ; preds = %9
  %15 = getelementptr inbounds %struct.NUS_multi_gpu, ptr %4, i32 0, i32 0
  %16 = load ptr, ptr %15, align 8, !tbaa !12
  %17 = load i32, ptr %5, align 4, !tbaa !5
  %18 = zext i32 %17 to i64
  %19 = getelementptr inbounds %struct.NUS_gpu, ptr %16, i64 %18
  %20 = call i32 @nus_gpu_submit_commands(ptr noundef byval(%struct.NUS_gpu) align 8 %19)
  %21 = icmp ne i32 %20, 1
  br i1 %21, label %22, label %24

22:                                               ; preds = %14
  %23 = call i32 (ptr, ...) @printf(ptr noundef @.str.5)
  store i32 0, ptr %3, align 4
  store i32 1, ptr %6, align 4
  br label %29

24:                                               ; preds = %14
  br label %25

25:                                               ; preds = %24
  %26 = load i32, ptr %5, align 4, !tbaa !5
  %27 = add i32 %26, 1
  store i32 %27, ptr %5, align 4, !tbaa !5
  br label %9, !llvm.loop !13

28:                                               ; preds = %9
  store i32 1, ptr %3, align 4
  store i32 1, ptr %6, align 4
  br label %29

29:                                               ; preds = %28, %22
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  %30 = load i32, ptr %3, align 4
  ret i32 %30
}

declare i32 @nus_gpu_submit_commands(ptr noundef byval(%struct.NUS_gpu) align 8) #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, !6, i64 8}
!10 = !{!"NUS_multi_gpu", !11, i64 0, !6, i64 8}
!11 = !{!"any pointer", !7, i64 0}
!12 = !{!10, !11, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"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"

%struct.NUS_gpu = type { ptr, ptr, ptr, %struct.NUS_vk_device_functions, ptr, ptr, %struct.VkPhysicalDeviceMemoryProperties, i32, i32 }
%struct.NUS_vk_device_functions = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }
%struct.VkPhysicalDeviceMemoryProperties = type { i32, [32 x %struct.VkMemoryType], i32, [16 x %struct.VkMemoryHeap] }
%struct.VkMemoryType = type { i32, i32 }
%struct.VkMemoryHeap = type { i64, i32 }

@.str.5 = external hidden unnamed_addr constant [44 x i8], align 1

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local range(i32 0, 2) i32 @nus_multi_gpu_submit_commands(ptr %0, i32 %1) local_unnamed_addr #1 {
  %.not6 = icmp eq i32 %1, 0
  br i1 %.not6, label %.loopexit, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %2
  %wide.trip.count = zext i32 %1 to i64
  br label %.lr.ph

3:                                                ; preds = %.lr.ph
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond.not, label %.loopexit, label %.lr.ph, !llvm.loop !5

.lr.ph:                                           ; preds = %.lr.ph.preheader, %3
  %indvars.iv = phi i64 [ 0, %.lr.ph.preheader ], [ %indvars.iv.next, %3 ]
  %4 = getelementptr inbounds %struct.NUS_gpu, ptr %0, i64 %indvars.iv
  %5 = tail call i32 @nus_gpu_submit_commands(ptr noundef byval(%struct.NUS_gpu) align 8 %4) #3
  %.not = icmp eq i32 %5, 1
  br i1 %.not, label %3, label %6

6:                                                ; preds = %.lr.ph
  %7 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.5)
  br label %.loopexit

.loopexit:                                        ; preds = %3, %2, %6
  %.04 = phi i32 [ 0, %6 ], [ 1, %2 ], [ 1, %3 ]
  ret i32 %.04
}

declare i32 @nus_gpu_submit_commands(ptr noundef byval(%struct.NUS_gpu) align 8) local_unnamed_addr #2

attributes #0 = { nofree nounwind "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 = { 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 = { "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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass