; 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: nounwind uwtable
declare dso_local void @GIC_EnableDistributor() #0

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

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

; Function Attrs: nounwind uwtable
declare dso_local i32 @GIC_DistributorInfo() #0

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

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

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

; Function Attrs: nounwind uwtable
define dso_local void @GIC_DistInit() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = 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
  store i32 0, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #2
  call void @GIC_DisableDistributor()
  %4 = call i32 @GIC_DistributorInfo()
  %5 = and i32 %4, 31
  %6 = add i32 %5, 1
  %7 = mul i32 32, %6
  store i32 %7, ptr %2, align 4, !tbaa !5
  call void @GIC_SetPriority(i32 noundef 0, i32 noundef 255)
  %8 = call i32 @GIC_GetPriority(i32 noundef 0)
  store i32 %8, ptr %3, align 4, !tbaa !5
  store i32 32, ptr %1, align 4, !tbaa !5
  br label %9

9:                                                ; preds = %20, %0
  %10 = load i32, ptr %1, align 4, !tbaa !5
  %11 = load i32, ptr %2, align 4, !tbaa !5
  %12 = icmp ult i32 %10, %11
  br i1 %12, label %13, label %23

13:                                               ; preds = %9
  %14 = load i32, ptr %1, align 4, !tbaa !5
  call void @GIC_DisableIRQ(i32 noundef %14)
  %15 = load i32, ptr %1, align 4, !tbaa !5
  call void @GIC_SetLevelModel(i32 noundef %15, i8 noundef signext 0, i8 noundef signext 1)
  %16 = load i32, ptr %1, align 4, !tbaa !5
  %17 = load i32, ptr %3, align 4, !tbaa !5
  %18 = udiv i32 %17, 2
  call void @GIC_SetPriority(i32 noundef %16, i32 noundef %18)
  %19 = load i32, ptr %1, align 4, !tbaa !5
  call void @GIC_SetTarget(i32 noundef %19, i32 noundef 1)
  br label %20

20:                                               ; preds = %13
  %21 = load i32, ptr %1, align 4, !tbaa !5
  %22 = add i32 %21, 1
  store i32 %22, ptr %1, align 4, !tbaa !5
  br label %9, !llvm.loop !9

23:                                               ; preds = %9
  call void @GIC_EnableDistributor()
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #2
  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 = { 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 = { 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_EnableDistributor() local_unnamed_addr #0

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

; Function Attrs: nounwind uwtable
declare dso_local void @GIC_SetTarget(i32 noundef, i32 noundef) 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 i32 @GIC_DistributorInfo() 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
define dso_local void @GIC_DistInit() local_unnamed_addr #0 {
  tail call void @GIC_DisableDistributor()
  %1 = tail call i32 @GIC_DistributorInfo()
  %2 = shl i32 %1, 5
  %3 = and i32 %2, 992
  tail call void @GIC_SetPriority(i32 noundef 0, i32 noundef 255)
  %4 = tail call i32 @GIC_GetPriority(i32 noundef 0)
  %.not = icmp eq i32 %3, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %0
  %5 = lshr i32 %4, 1
  %6 = or disjoint i32 %3, 31
  br label %7

7:                                                ; preds = %.lr.ph, %7
  %.08 = phi i32 [ 32, %.lr.ph ], [ %8, %7 ]
  tail call void @GIC_DisableIRQ(i32 noundef %.08)
  tail call void @GIC_SetLevelModel(i32 noundef %.08, i8 noundef signext 0, i8 noundef signext 1)
  tail call void @GIC_SetPriority(i32 noundef %.08, i32 noundef %5)
  tail call void @GIC_SetTarget(i32 noundef %.08, i32 noundef 1)
  %8 = add nuw nsw i32 %.08, 1
  %exitcond.not = icmp eq i32 %.08, %6
  br i1 %exitcond.not, label %._crit_edge, label %7, !llvm.loop !5

._crit_edge:                                      ; preds = %7, %0
  tail call void @GIC_EnableDistributor()
  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,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass