; LLVM IR from eclipse-threadx/threadx :: ports/cortex_a34/ac6/example_build/sample_threadx (GICv3_gicr)

; 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.GICv3_redistributor_RD = type { i32, i32, [2 x i32], i32, i32, [2 x i32], [8 x i32], i64, i64, [8 x i32], i64, i64, [8 x i32], i64, [2 x i32], i64, [2 x i32], i64, [2 x i32], [12 x i32], i64, [2 x i32], i64, [2 x i32] }

; Function Attrs: nounwind uwtable
define dso_local i32 @GetGICR(i32 noundef %0) #0 {
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  store i32 %0, ptr %3, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  store i32 0, ptr %5, align 4, !tbaa !5
  br label %7

7:                                                ; preds = %21, %1
  %8 = load i32, ptr %5, align 4, !tbaa !5
  %9 = call ptr @getgicrRD(i32 noundef %8)
  store ptr %9, ptr %4, align 8, !tbaa !9
  %10 = load ptr, ptr %4, align 8, !tbaa !9
  %11 = getelementptr inbounds %struct.GICv3_redistributor_RD, ptr %10, i32 0, i32 2
  %12 = getelementptr inbounds [2 x i32], ptr %11, i64 0, i64 1
  %13 = load volatile i32, ptr %12, align 4, !tbaa !5
  %14 = load i32, ptr %3, align 4, !tbaa !5
  %15 = icmp eq i32 %13, %14
  br i1 %15, label %16, label %18

16:                                               ; preds = %7
  %17 = load i32, ptr %5, align 4, !tbaa !5
  store i32 %17, ptr %2, align 4
  store i32 1, ptr %6, align 4
  br label %29

18:                                               ; preds = %7
  %19 = load i32, ptr %5, align 4, !tbaa !5
  %20 = add i32 %19, 1
  store i32 %20, ptr %5, align 4, !tbaa !5
  br label %21

21:                                               ; preds = %18
  %22 = load ptr, ptr %4, align 8, !tbaa !9
  %23 = getelementptr inbounds %struct.GICv3_redistributor_RD, ptr %22, i32 0, i32 2
  %24 = getelementptr inbounds [2 x i32], ptr %23, i64 0, i64 0
  %25 = load volatile i32, ptr %24, align 8, !tbaa !5
  %26 = and i32 %25, 16
  %27 = icmp eq i32 %26, 0
  br i1 %27, label %7, label %28, !llvm.loop !11

28:                                               ; preds = %21
  store i32 -1, ptr %2, align 4
  store i32 1, ptr %6, align 4
  br label %29

29:                                               ; preds = %28, %16
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  %30 = load i32, ptr %2, align 4
  ret i32 %30
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: inlinehint nounwind uwtable
declare hidden ptr @getgicrRD(i32 noundef) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

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 = { inlinehint 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"}


; 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
define dso_local noundef i32 @GetGICR(i32 noundef %0) local_unnamed_addr #0 {
  br label %2

2:                                                ; preds = %7, %1
  %.0 = phi i32 [ 0, %1 ], [ %9, %7 ]
  %3 = tail call ptr @getgicrRD(i32 noundef %.0)
  %4 = getelementptr inbounds i8, ptr %3, i64 12
  %5 = load volatile i32, ptr %4, align 4, !tbaa !5
  %6 = icmp eq i32 %5, %0
  br i1 %6, label %13, label %7

7:                                                ; preds = %2
  %8 = getelementptr inbounds i8, ptr %3, i64 8
  %9 = add i32 %.0, 1
  %10 = load volatile i32, ptr %8, align 8, !tbaa !5
  %11 = and i32 %10, 16
  %12 = icmp eq i32 %11, 0
  br i1 %12, label %2, label %13, !llvm.loop !9

13:                                               ; preds = %7, %2
  %.06 = phi i32 [ %.0, %2 ], [ -1, %7 ]
  ret i32 %.06
}

; Function Attrs: inlinehint nounwind uwtable
declare hidden ptr @getgicrRD(i32 noundef) local_unnamed_addr #1

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 = { inlinehint 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 = !{!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"}


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