; LLVM IR from lfarcaro/ARINC653_ARMV7A_Z7000 :: ARINC653_ARMV7A_Z7000.sw/ARINC653_ARMV7A_Z7000_bsp/ps7_cortexa9_0/libsrc/devcfg_v3 (ClearControlRegister)

; 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.XDcfg = type { %struct.XDcfg_Config, i32, i32, ptr, ptr }
%struct.XDcfg_Config = type { i16, i32 }

@Xil_AssertStatus = external global i32, align 4
@.str = external hidden unnamed_addr constant [163 x i8], align 1

declare void @Xil_Assert(ptr noundef, i32 noundef) #0

; Function Attrs: inlinehint nounwind uwtable
declare hidden void @Xil_Out32(i64 noundef, i32 noundef) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: inlinehint nounwind uwtable
declare hidden i32 @Xil_In32(i64 noundef) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: nounwind uwtable
define dso_local void @XDcfg_ClearControlRegister(ptr noundef %0, i32 noundef %1) #3 {
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = 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) #4
  %7 = load ptr, ptr %3, align 8, !tbaa !5
  %8 = icmp ne ptr %7, null
  br i1 %8, label %9, label %10

9:                                                ; preds = %2
  store i32 0, ptr @Xil_AssertStatus, align 4, !tbaa !9
  br label %11

10:                                               ; preds = %2
  call void @Xil_Assert(ptr noundef @.str, i32 noundef 286)
  store i32 1, ptr @Xil_AssertStatus, align 4, !tbaa !9
  store i32 1, ptr %6, align 4
  br label %36

11:                                               ; preds = %9
  %12 = load ptr, ptr %3, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.XDcfg, ptr %12, i32 0, i32 1
  %14 = load i32, ptr %13, align 8, !tbaa !11
  %15 = icmp eq i32 %14, 286331153
  br i1 %15, label %16, label %17

16:                                               ; preds = %11
  store i32 0, ptr @Xil_AssertStatus, align 4, !tbaa !9
  br label %18

17:                                               ; preds = %11
  call void @Xil_Assert(ptr noundef @.str, i32 noundef 287)
  store i32 1, ptr @Xil_AssertStatus, align 4, !tbaa !9
  store i32 1, ptr %6, align 4
  br label %36

18:                                               ; preds = %16
  %19 = load ptr, ptr %3, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.XDcfg, ptr %19, i32 0, i32 0
  %21 = getelementptr inbounds %struct.XDcfg_Config, ptr %20, i32 0, i32 1
  %22 = load i32, ptr %21, align 4, !tbaa !15
  %23 = add i32 %22, 0
  %24 = zext i32 %23 to i64
  %25 = call i32 @Xil_In32(i64 noundef %24)
  store i32 %25, ptr %5, align 4, !tbaa !9
  %26 = load ptr, ptr %3, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.XDcfg, ptr %26, i32 0, i32 0
  %28 = getelementptr inbounds %struct.XDcfg_Config, ptr %27, i32 0, i32 1
  %29 = load i32, ptr %28, align 4, !tbaa !15
  %30 = add i32 %29, 0
  %31 = zext i32 %30 to i64
  %32 = load i32, ptr %5, align 4, !tbaa !9
  %33 = load i32, ptr %4, align 4, !tbaa !9
  %34 = xor i32 %33, -1
  %35 = and i32 %32, %34
  call void @Xil_Out32(i64 noundef %31, i32 noundef %35)
  store i32 0, ptr %6, align 4
  br label %36

36:                                               ; preds = %18, %17, %10
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  %37 = load i32, ptr %6, align 4
  switch i32 %37, label %39 [
    i32 0, label %38
    i32 1, label %38
  ]

38:                                               ; preds = %36, %36
  ret void

39:                                               ; preds = %36
  unreachable
}

attributes #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" }
attributes #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { 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 #4 = { 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 8}
!12 = !{!"", !13, i64 0, !10, i64 8, !10, i64 12, !6, i64 16, !6, i64 24}
!13 = !{!"", !14, i64 0, !10, i64 4}
!14 = !{!"short", !7, i64 0}
!15 = !{!12, !10, i64 4}


; 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"

@Xil_AssertStatus = external local_unnamed_addr global i32, align 4
@.str = external hidden unnamed_addr constant [163 x i8], align 1

declare void @Xil_Assert(ptr noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: inlinehint nounwind uwtable
declare hidden void @Xil_Out32(i64 noundef, i32 noundef) local_unnamed_addr #1

; Function Attrs: inlinehint nounwind uwtable
declare hidden i32 @Xil_In32(i64 noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local void @XDcfg_ClearControlRegister(ptr noundef readonly %0, i32 noundef %1) local_unnamed_addr #2 {
  %.not = icmp eq ptr %0, null
  br i1 %.not, label %7, label %3

3:                                                ; preds = %2
  store i32 0, ptr @Xil_AssertStatus, align 4, !tbaa !5
  %4 = getelementptr inbounds i8, ptr %0, i64 8
  %5 = load i32, ptr %4, align 8, !tbaa !9
  %6 = icmp eq i32 %5, 286331153
  br i1 %6, label %8, label %17

7:                                                ; preds = %2
  tail call void @Xil_Assert(ptr noundef nonnull @.str, i32 noundef 286) #3
  store i32 1, ptr @Xil_AssertStatus, align 4, !tbaa !5
  br label %18

8:                                                ; preds = %3
  %9 = getelementptr inbounds i8, ptr %0, i64 4
  %10 = load i32, ptr %9, align 4, !tbaa !14
  %11 = zext i32 %10 to i64
  %12 = tail call i32 @Xil_In32(i64 noundef %11)
  %13 = load i32, ptr %9, align 4, !tbaa !14
  %14 = zext i32 %13 to i64
  %15 = xor i32 %1, -1
  %16 = and i32 %12, %15
  tail call void @Xil_Out32(i64 noundef %14, i32 noundef %16)
  br label %18

17:                                               ; preds = %3
  tail call void @Xil_Assert(ptr noundef nonnull @.str, i32 noundef 287) #3
  store i32 1, ptr @Xil_AssertStatus, align 4, !tbaa !5
  br label %18

18:                                               ; preds = %8, %17, %7
  ret void
}

attributes #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" }
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 = !{!"", !11, i64 0, !6, i64 8, !6, i64 12, !13, i64 16, !13, i64 24}
!11 = !{!"", !12, i64 0, !6, i64 4}
!12 = !{!"short", !7, i64 0}
!13 = !{!"any pointer", !7, i64 0}
!14 = !{!10, !6, i64 4}


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