; LLVM IR from ARM-software/Arm-2D :: Helper/Source (arm_2d_helper_pfb)

; 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.arm_2d_helper_dirty_region_item_t = type { %struct.anon.34, %struct.arm_2d_region_t }
%struct.anon.34 = type { ptr, ptr, %union.anon.35, %struct.arm_2d_region_t, i8, i8, i16 }
%union.anon.35 = type { [2 x %struct.arm_2d_region_t] }
%struct.arm_2d_region_t = type { %union.anon, %union.anon.0 }
%union.anon = type { %struct.arm_2d_location_t }
%struct.arm_2d_location_t = type { i16, i16 }
%union.anon.0 = type { %struct.arm_2d_size_t }
%struct.arm_2d_size_t = type { i16, i16 }

@.str = external hidden unnamed_addr constant [15 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [87 x i8], align 1
@__PRETTY_FUNCTION__.arm_2d_helper_dirty_region_item_suspend_update = external hidden unnamed_addr constant [97 x i8], align 1

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr 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
define dso_local zeroext i1 @arm_2d_helper_dirty_region_item_suspend_update(ptr noundef nonnull %0, i1 noundef zeroext %1) #2 {
  %3 = alloca ptr, align 8
  %4 = alloca i8, align 1
  %5 = alloca i8, align 1
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  %8 = zext i1 %1 to i8
  store i8 %8, ptr %4, align 1, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 1, ptr %5) #3
  store i8 0, ptr %5, align 1, !tbaa !9
  %9 = load ptr, ptr %3, align 8, !tbaa !5
  %10 = icmp ne ptr null, %9
  br i1 %10, label %11, label %12

11:                                               ; preds = %2
  br label %13

12:                                               ; preds = %2
  call void @__assert_fail(ptr noundef @.str, ptr noundef @.str.1, i32 noundef 4767, ptr noundef @__PRETTY_FUNCTION__.arm_2d_helper_dirty_region_item_suspend_update) #4
  unreachable

13:                                               ; preds = %11
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  store i32 0, ptr %6, align 4, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  store ptr null, ptr %7, align 8, !tbaa !5
  br label %14

14:                                               ; preds = %19, %13
  %15 = load ptr, ptr %7, align 8, !tbaa !5
  %16 = getelementptr inbounds i32, ptr %15, i32 1
  store ptr %16, ptr %7, align 8, !tbaa !5
  %17 = icmp eq ptr %15, null
  br i1 %17, label %19, label %18

18:                                               ; preds = %14
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  br label %39

19:                                               ; preds = %14
  %20 = load ptr, ptr %3, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.arm_2d_helper_dirty_region_item_t, ptr %20, i32 0, i32 0
  %22 = getelementptr inbounds %struct.anon.34, ptr %21, i32 0, i32 4
  %23 = load i8, ptr %22, align 8
  %24 = lshr i8 %23, 1
  %25 = and i8 %24, 1
  %26 = icmp ne i8 %25, 0
  %27 = zext i1 %26 to i8
  store i8 %27, ptr %5, align 1, !tbaa !9
  %28 = load i8, ptr %4, align 1, !tbaa !9, !range !13, !noundef !14
  %29 = trunc i8 %28 to i1
  %30 = zext i1 %29 to i8
  %31 = load ptr, ptr %3, align 8, !tbaa !5
  %32 = getelementptr inbounds %struct.arm_2d_helper_dirty_region_item_t, ptr %31, i32 0, i32 0
  %33 = getelementptr inbounds %struct.anon.34, ptr %32, i32 0, i32 4
  %34 = load i8, ptr %33, align 8
  %35 = and i8 %30, 1
  %36 = shl i8 %35, 1
  %37 = and i8 %34, -3
  %38 = or i8 %37, %36
  store i8 %38, ptr %33, align 8
  br label %14, !llvm.loop !15

39:                                               ; preds = %18
  %40 = load i8, ptr %5, align 1, !tbaa !9, !range !13, !noundef !14
  %41 = trunc i8 %40 to i1
  call void @llvm.lifetime.end.p0(i64 1, ptr %5) #3
  ret i1 %41
}

attributes #0 = { noreturn nounwind "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 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 }
attributes #4 = { noreturn 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 = !{!"_Bool", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{i8 0, i8 2}
!14 = !{}
!15 = distinct !{!15, !16}
!16 = !{!"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: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
define dso_local zeroext i1 @arm_2d_helper_dirty_region_item_suspend_update(ptr nocapture noundef nonnull %0, i1 noundef zeroext %1) local_unnamed_addr #0 {
  %3 = getelementptr inbounds i8, ptr %0, i64 40
  %.promoted = load i8, ptr %3, align 8
  %4 = and i8 %.promoted, -3
  %5 = select i1 %1, i8 2, i8 0
  %6 = or disjoint i8 %4, %5
  %7 = and i8 %.promoted, 2
  %8 = icmp ne i8 %7, 0
  store i8 %6, ptr %3, align 8
  ret i1 %8
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) 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)"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,LCSSAPass,LICMPass,LoopRotatePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass