; LLVM IR from lfarcaro/ARINC653_ARMV7A_AM335X :: Hardware (ctlregcontext_bb)

; 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.ctrlRegContext = type { i32, i32, [211 x %struct.ioPadMap] }
%struct.ioPadMap = type { i32, i32 }

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

6:                                                ; preds = %26, %2
  %7 = load i32, ptr %5, align 4, !tbaa !9
  %8 = icmp ult i32 %7, 211
  br i1 %8, label %9, label %29

9:                                                ; preds = %6
  %10 = load ptr, ptr %3, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.ctrlRegContext, ptr %10, i32 0, i32 2
  %12 = load i32, ptr %5, align 4, !tbaa !9
  %13 = zext i32 %12 to i64
  %14 = getelementptr inbounds [211 x %struct.ioPadMap], ptr %11, i64 0, i64 %13
  %15 = getelementptr inbounds %struct.ioPadMap, ptr %14, i32 0, i32 1
  %16 = load i32, ptr %15, align 4, !tbaa !11
  %17 = icmp eq i32 0, %16
  br i1 %17, label %18, label %25

18:                                               ; preds = %9
  %19 = load i32, ptr %4, align 4, !tbaa !9
  %20 = load i32, ptr %5, align 4, !tbaa !9
  %21 = mul i32 %20, 4
  %22 = add i32 1155598336, %21
  %23 = zext i32 %22 to i64
  %24 = inttoptr i64 %23 to ptr
  store volatile i32 %19, ptr %24, align 4, !tbaa !9
  br label %25

25:                                               ; preds = %18, %9
  br label %26

26:                                               ; preds = %25
  %27 = load i32, ptr %5, align 4, !tbaa !9
  %28 = add i32 %27, 1
  store i32 %28, ptr %5, align 4, !tbaa !9
  br label %6, !llvm.loop !13

29:                                               ; preds = %6
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 4}
!12 = !{!"ioPadMap", !10, i64 0, !10, i64 4}
!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.ioPadMap = type { i32, i32 }

; Function Attrs: nofree norecurse nounwind uwtable
define dso_local void @IOPadSelConfigure(ptr nocapture noundef readonly %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = getelementptr inbounds i8, ptr %0, i64 8
  br label %4

4:                                                ; preds = %21, %2
  %indvars.iv = phi i64 [ 0, %2 ], [ %indvars.iv.next.1, %21 ]
  %5 = getelementptr inbounds [211 x %struct.ioPadMap], ptr %3, i64 0, i64 %indvars.iv, i32 1
  %6 = load i32, ptr %5, align 4, !tbaa !5
  %7 = icmp eq i32 %6, 0
  br i1 %7, label %8, label %12

8:                                                ; preds = %4
  %9 = shl nuw nsw i64 %indvars.iv, 2
  %10 = add nuw nsw i64 %9, 1155598336
  %11 = inttoptr i64 %10 to ptr
  store volatile i32 %1, ptr %11, align 8, !tbaa !10
  br label %12

12:                                               ; preds = %4, %8
  %indvars.iv.next = or disjoint i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv, 210
  br i1 %exitcond.not, label %22, label %13, !llvm.loop !11

13:                                               ; preds = %12
  %14 = getelementptr inbounds [211 x %struct.ioPadMap], ptr %3, i64 0, i64 %indvars.iv.next, i32 1
  %15 = load i32, ptr %14, align 4, !tbaa !5
  %16 = icmp eq i32 %15, 0
  br i1 %16, label %17, label %21

17:                                               ; preds = %13
  %18 = shl nuw nsw i64 %indvars.iv.next, 2
  %19 = add nuw nsw i64 %18, 1155598336
  %20 = inttoptr i64 %19 to ptr
  store volatile i32 %1, ptr %20, align 4, !tbaa !10
  br label %21

21:                                               ; preds = %17, %13
  %indvars.iv.next.1 = add nuw nsw i64 %indvars.iv, 2
  br label %4

22:                                               ; preds = %12
  ret void
}

attributes #0 = { nofree norecurse 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, !7, i64 4}
!6 = !{!"ioPadMap", !7, i64 0, !7, i64 4}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!7, !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,LICMPass,LoopRotatePass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass