; LLVM IR from eclipse-threadx/threadx :: ports/cortex_r4/ac6/example_build/sample_threadx (gic)

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

; 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
declare dso_local void @GIC_EnableInterface() #1

; Function Attrs: nounwind uwtable
declare dso_local void @GIC_DisableInterface() #1

; Function Attrs: nounwind uwtable
declare dso_local void @GIC_DisableIRQ(i32 noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local void @GIC_SetLevelModel(i32 noundef, i8 noundef signext, i8 noundef signext) #1

; Function Attrs: nounwind uwtable
declare dso_local void @GIC_SetPriority(i32 noundef, i32 noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local i32 @GIC_GetPriority(i32 noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local void @GIC_InterfacePriorityMask(i32 noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local void @GIC_SetBinaryPoint(i32 noundef) #1

; Function Attrs: nounwind uwtable
define dso_local void @GIC_CPUInterfaceInit() #1 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %1) #2
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #2
  call void @GIC_DisableInterface()
  call void @GIC_SetPriority(i32 noundef 0, i32 noundef 255)
  %3 = call i32 @GIC_GetPriority(i32 noundef 0)
  store i32 %3, ptr %2, align 4, !tbaa !5
  store i32 0, ptr %1, align 4, !tbaa !5
  br label %4

4:                                                ; preds = %17, %0
  %5 = load i32, ptr %1, align 4, !tbaa !5
  %6 = icmp ult i32 %5, 32
  br i1 %6, label %7, label %20

7:                                                ; preds = %4
  %8 = load i32, ptr %1, align 4, !tbaa !5
  %9 = icmp ugt i32 %8, 15
  br i1 %9, label %10, label %12

10:                                               ; preds = %7
  %11 = load i32, ptr %1, align 4, !tbaa !5
  call void @GIC_SetLevelModel(i32 noundef %11, i8 noundef signext 0, i8 noundef signext 1)
  br label %12

12:                                               ; preds = %10, %7
  %13 = load i32, ptr %1, align 4, !tbaa !5
  call void @GIC_DisableIRQ(i32 noundef %13)
  %14 = load i32, ptr %1, align 4, !tbaa !5
  %15 = load i32, ptr %2, align 4, !tbaa !5
  %16 = udiv i32 %15, 2
  call void @GIC_SetPriority(i32 noundef %14, i32 noundef %16)
  br label %17

17:                                               ; preds = %12
  %18 = load i32, ptr %1, align 4, !tbaa !5
  %19 = add i32 %18, 1
  store i32 %19, ptr %1, align 4, !tbaa !5
  br label %4, !llvm.loop !9

20:                                               ; preds = %4
  call void @GIC_EnableInterface()
  call void @GIC_SetBinaryPoint(i32 noundef 0)
  call void @GIC_InterfacePriorityMask(i32 noundef 255)
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %1) #2
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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
declare dso_local void @GIC_EnableInterface() local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local void @GIC_DisableInterface() local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local void @GIC_DisableIRQ(i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local void @GIC_SetLevelModel(i32 noundef, i8 noundef signext, i8 noundef signext) local_unnamed_addr #0

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

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

; Function Attrs: nounwind uwtable
declare dso_local void @GIC_InterfacePriorityMask(i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local void @GIC_SetBinaryPoint(i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @GIC_CPUInterfaceInit() local_unnamed_addr #0 {
  tail call void @GIC_DisableInterface()
  tail call void @GIC_SetPriority(i32 noundef 0, i32 noundef 255)
  %1 = tail call i32 @GIC_GetPriority(i32 noundef 0)
  %2 = lshr i32 %1, 1
  br label %3

3:                                                ; preds = %0, %6
  %.07 = phi i32 [ 0, %0 ], [ %7, %6 ]
  %4 = icmp ugt i32 %.07, 15
  br i1 %4, label %5, label %6

5:                                                ; preds = %3
  tail call void @GIC_SetLevelModel(i32 noundef %.07, i8 noundef signext 0, i8 noundef signext 1)
  br label %6

6:                                                ; preds = %5, %3
  tail call void @GIC_DisableIRQ(i32 noundef %.07)
  tail call void @GIC_SetPriority(i32 noundef %.07, i32 noundef %2)
  %7 = add nuw nsw i32 %.07, 1
  %exitcond.not = icmp eq i32 %7, 32
  br i1 %exitcond.not, label %8, label %3, !llvm.loop !5

8:                                                ; preds = %6
  tail call void @GIC_EnableInterface()
  tail call void @GIC_SetBinaryPoint(i32 noundef 0)
  tail call void @GIC_InterfacePriorityMask(i32 noundef 255)
  ret void
}

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)"}
!5 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,LICMPass,LoopRotatePass,SROAPass,SimplifyCFGPass,TailCallElimPass