; LLVM IR from ARM-software/Arm-2D :: Helper/Source/arm_2d_helper_pfb.ll_ (arm_2d_helper_pfb_new)

; 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_pfb_t = type { %struct.anon, %struct.anon.30 }
%struct.anon = type { %struct.arm_2d_helper_pfb_cfg_t, %struct.anon.4 }
%struct.arm_2d_helper_pfb_cfg_t = type { %struct.arm_2d_region_t, %struct.anon.1, %struct.anon.2, %struct.arm_2d_helper_pfb_dependency_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 }
%struct.anon.1 = type <{ ptr, %struct.arm_2d_size_t, i64, [4 x i8] }>
%struct.anon.2 = type { ptr, i8 }
%struct.arm_2d_helper_pfb_dependency_t = type { %struct.arm_2d_helper_render_evt_t, %struct.arm_2d_helper_draw_evt_t, %struct.arm_2d_evt_t, %struct.arm_2d_evt_t, %struct.anon.3, %struct.arm_2d_helper_before_flushing_evt_t }
%struct.arm_2d_helper_render_evt_t = type { ptr, ptr }
%struct.arm_2d_helper_draw_evt_t = type { ptr, ptr }
%struct.arm_2d_evt_t = type { ptr, ptr }
%struct.anon.3 = type { %struct.arm_2d_helper_draw_evt_t, ptr }
%struct.arm_2d_helper_before_flushing_evt_t = type { ptr, ptr }
%struct.anon.4 = type { %struct.arm_2d_location_t, %struct.arm_2d_region_t, ptr, %struct.anon.5, %struct.arm_2d_tile_t, %struct.arm_2d_size_t, i32, i8, i8, i16, %struct.anon.21, %union.arm_2d_colour_t, i64, ptr, ptr, ptr, %struct.anon.29, ptr }
%struct.anon.5 = type { ptr, ptr, ptr, ptr, %struct.arm_2d_region_list_item_t }
%struct.arm_2d_region_list_item_t = type { ptr, %struct.anon.6, %struct.arm_2d_region_t, %struct.anon.7 }
%struct.anon.6 = type { ptr }
%struct.anon.7 = type { i8, i8, i16 }
%struct.arm_2d_tile_t = type { %union.anon.8, %union.anon.19, %union.anon.20 }
%union.anon.8 = type { %struct.anon.9 }
%struct.anon.9 = type { i8, %union.arm_2d_color_info_t, %union.anon.12 }
%union.arm_2d_color_info_t = type { %struct.anon.10 }
%struct.anon.10 = type { i8 }
%union.anon.12 = type { i16 }
%union.anon.19 = type { %struct.arm_2d_region_t }
%union.anon.20 = type { ptr }
%struct.anon.21 = type { i32 }
%union.arm_2d_colour_t = type { i32 }
%struct.anon.29 = type { ptr, ptr }
%struct.anon.30 = type { i64, i32, i32 }
%struct.__arm_slist_node_t = type { ptr }
%struct.arm_2d_pfb_t = type { ptr, ptr, %struct.arm_2d_tile_t, i32 }

@.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_pfb_new = external hidden unnamed_addr constant [61 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local ptr @__arm_2d_helper_pfb_new(ptr noundef nonnull %0) #0 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %6 = load ptr, ptr %2, align 8, !tbaa !5
  %7 = icmp ne ptr null, %6
  br i1 %7, label %8, label %9

8:                                                ; preds = %1
  br label %10

9:                                                ; preds = %1
  call void @__assert_fail(ptr noundef @.str, ptr noundef @.str.1, i32 noundef 105, ptr noundef @__PRETTY_FUNCTION__.__arm_2d_helper_pfb_new) #3
  unreachable

10:                                               ; preds = %8
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #4
  store ptr null, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #4
  store i32 0, ptr %4, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #4
  store ptr null, ptr %5, align 8, !tbaa !5
  br label %11

11:                                               ; preds = %55, %10
  %12 = load ptr, ptr %5, align 8, !tbaa !5
  %13 = getelementptr inbounds i32, ptr %12, i32 1
  store ptr %13, ptr %5, align 8, !tbaa !5
  %14 = icmp eq ptr %12, null
  br i1 %14, label %16, label %15

15:                                               ; preds = %11
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  br label %56

16:                                               ; preds = %11
  %17 = load ptr, ptr %2, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct.arm_2d_helper_pfb_t, ptr %17, i32 0, i32 0
  %19 = getelementptr inbounds %struct.anon, ptr %18, i32 0, i32 1
  %20 = getelementptr inbounds %struct.anon.4, ptr %19, i32 0, i32 8
  %21 = load i8, ptr %20, align 1, !tbaa !11
  %22 = icmp ne i8 %21, 0
  br i1 %22, label %23, label %55

23:                                               ; preds = %16
  %24 = load ptr, ptr %2, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct.arm_2d_helper_pfb_t, ptr %24, i32 0, i32 0
  %26 = getelementptr inbounds %struct.anon, ptr %25, i32 0, i32 1
  %27 = getelementptr inbounds %struct.anon.4, ptr %26, i32 0, i32 8
  %28 = load i8, ptr %27, align 1, !tbaa !11
  %29 = add i8 %28, -1
  store i8 %29, ptr %27, align 1, !tbaa !11
  br label %30

30:                                               ; preds = %23
  %31 = load ptr, ptr %2, align 8, !tbaa !5
  %32 = getelementptr inbounds %struct.arm_2d_helper_pfb_t, ptr %31, i32 0, i32 0
  %33 = getelementptr inbounds %struct.anon, ptr %32, i32 0, i32 1
  %34 = getelementptr inbounds %struct.anon.4, ptr %33, i32 0, i32 14
  %35 = load ptr, ptr %34, align 8, !tbaa !37
  store ptr %35, ptr %3, align 8, !tbaa !5
  %36 = load ptr, ptr %2, align 8, !tbaa !5
  %37 = getelementptr inbounds %struct.arm_2d_helper_pfb_t, ptr %36, i32 0, i32 0
  %38 = getelementptr inbounds %struct.anon, ptr %37, i32 0, i32 1
  %39 = getelementptr inbounds %struct.anon.4, ptr %38, i32 0, i32 14
  %40 = load ptr, ptr %39, align 8, !tbaa !37
  %41 = icmp ne ptr null, %40
  br i1 %41, label %42, label %52

42:                                               ; preds = %30
  %43 = load ptr, ptr %3, align 8, !tbaa !5
  %44 = getelementptr inbounds %struct.__arm_slist_node_t, ptr %43, i32 0, i32 0
  %45 = load ptr, ptr %44, align 8, !tbaa !38
  %46 = load ptr, ptr %2, align 8, !tbaa !5
  %47 = getelementptr inbounds %struct.arm_2d_helper_pfb_t, ptr %46, i32 0, i32 0
  %48 = getelementptr inbounds %struct.anon, ptr %47, i32 0, i32 1
  %49 = getelementptr inbounds %struct.anon.4, ptr %48, i32 0, i32 14
  store ptr %45, ptr %49, align 8, !tbaa !5
  %50 = load ptr, ptr %3, align 8, !tbaa !5
  %51 = getelementptr inbounds %struct.__arm_slist_node_t, ptr %50, i32 0, i32 0
  store ptr null, ptr %51, align 8, !tbaa !38
  br label %52

52:                                               ; preds = %42, %30
  br label %53

53:                                               ; preds = %52
  br label %54

54:                                               ; preds = %53
  br label %55

55:                                               ; preds = %54, %16
  br label %11, !llvm.loop !40

56:                                               ; preds = %15
  %57 = load ptr, ptr %3, align 8, !tbaa !5
  %58 = icmp ne ptr null, %57
  br i1 %58, label %59, label %63

59:                                               ; preds = %56
  %60 = load ptr, ptr %2, align 8, !tbaa !5
  %61 = load ptr, ptr %3, align 8, !tbaa !5
  %62 = getelementptr inbounds %struct.arm_2d_pfb_t, ptr %61, i32 0, i32 1
  store ptr %60, ptr %62, align 8, !tbaa !42
  br label %64

63:                                               ; preds = %56
  br label %64

64:                                               ; preds = %63, %59
  %65 = load ptr, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #4
  ret ptr %65
}

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr 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: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

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 = { 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 #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { noreturn nounwind }
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, !7, i64 273}
!12 = !{!"arm_2d_helper_pfb_t", !13, i64 0, !36, i64 344}
!13 = !{!"", !14, i64 0, !26, i64 152}
!14 = !{!"arm_2d_helper_pfb_cfg_t", !15, i64 0, !16, i64 8, !19, i64 32, !20, i64 48}
!15 = !{!"arm_2d_region_t", !7, i64 0, !7, i64 4}
!16 = !{!"", !6, i64 0, !17, i64 8, !10, i64 12, !10, i64 15, !10, i64 16, !10, i64 17, !10, i64 17, !10, i64 17, !10, i64 17, !10, i64 18, !10, i64 19, !10, i64 19}
!17 = !{!"arm_2d_size_t", !18, i64 0, !18, i64 2}
!18 = !{!"short", !7, i64 0}
!19 = !{!"", !6, i64 0, !7, i64 8}
!20 = !{!"arm_2d_helper_pfb_dependency_t", !21, i64 0, !22, i64 16, !23, i64 32, !23, i64 48, !24, i64 64, !25, i64 88}
!21 = !{!"arm_2d_helper_render_evt_t", !6, i64 0, !6, i64 8}
!22 = !{!"arm_2d_helper_draw_evt_t", !6, i64 0, !6, i64 8}
!23 = !{!"arm_2d_evt_t", !6, i64 0, !6, i64 8}
!24 = !{!"", !22, i64 0, !6, i64 16}
!25 = !{!"arm_2d_helper_before_flushing_evt_t", !6, i64 0, !6, i64 8}
!26 = !{!"", !27, i64 0, !15, i64 4, !6, i64 16, !28, i64 24, !32, i64 88, !17, i64 112, !10, i64 116, !7, i64 120, !7, i64 121, !18, i64 122, !33, i64 124, !7, i64 128, !34, i64 136, !6, i64 144, !6, i64 152, !6, i64 160, !35, i64 168, !6, i64 184}
!27 = !{!"arm_2d_location_t", !18, i64 0, !18, i64 2}
!28 = !{!"", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !29, i64 32}
!29 = !{!"arm_2d_region_list_item_t", !6, i64 0, !30, i64 8, !15, i64 16, !31, i64 24}
!30 = !{!"", !6, i64 0}
!31 = !{!"", !7, i64 0, !7, i64 1, !7, i64 1, !18, i64 2, !18, i64 2, !18, i64 2, !18, i64 2}
!32 = !{!"arm_2d_tile_t", !7, i64 0, !7, i64 4, !7, i64 16}
!33 = !{!"", !10, i64 0, !10, i64 0, !10, i64 0, !10, i64 0, !10, i64 0, !10, i64 0, !10, i64 0, !10, i64 0, !10, i64 1, !10, i64 1, !10, i64 1, !10, i64 1, !10, i64 1, !10, i64 1, !10, i64 1, !10, i64 1, !10, i64 2}
!34 = !{!"long", !7, i64 0}
!35 = !{!"", !6, i64 0, !6, i64 8}
!36 = !{!"", !34, i64 0, !10, i64 8, !10, i64 12}
!37 = !{!12, !6, i64 304}
!38 = !{!39, !6, i64 0}
!39 = !{!"__arm_slist_node_t", !6, i64 0}
!40 = distinct !{!40, !41}
!41 = !{!"llvm.loop.mustprogress"}
!42 = !{!43, !6, i64 8}
!43 = !{!"arm_2d_pfb_t", !6, i64 0, !6, i64 8, !32, i64 16, !10, i64 40, !10, i64 43, !10, i64 43}


; 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(readwrite, inaccessiblemem: none) uwtable
define dso_local ptr @__arm_2d_helper_pfb_new(ptr noundef nonnull %0) local_unnamed_addr #0 {
  %2 = getelementptr inbounds i8, ptr %0, i64 273
  %.promoted = load i8, ptr %2, align 1, !tbaa !5
  %3 = getelementptr inbounds i8, ptr %0, i64 304
  %.not17 = icmp eq i8 %.promoted, 0
  br i1 %.not17, label %.thread, label %4

4:                                                ; preds = %1
  %5 = add i8 %.promoted, -1
  store i8 %5, ptr %2, align 1, !tbaa !5
  %6 = load ptr, ptr %3, align 8, !tbaa !35
  %.not18 = icmp eq ptr %6, null
  br i1 %.not18, label %.thread, label %7

7:                                                ; preds = %4
  %8 = load ptr, ptr %6, align 8, !tbaa !36
  store ptr %8, ptr %3, align 8, !tbaa !38
  store ptr null, ptr %6, align 8, !tbaa !36
  %9 = getelementptr inbounds i8, ptr %6, i64 8
  store ptr %0, ptr %9, align 8, !tbaa !39
  br label %.thread

.thread:                                          ; preds = %1, %4, %7
  %.122 = phi ptr [ %6, %7 ], [ null, %4 ], [ null, %1 ]
  ret ptr %.122
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(readwrite, inaccessiblemem: none) 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, !10, i64 273}
!6 = !{!"arm_2d_helper_pfb_t", !7, i64 0, !34, i64 344}
!7 = !{!"", !8, i64 0, !24, i64 152}
!8 = !{!"arm_2d_helper_pfb_cfg_t", !9, i64 0, !12, i64 8, !17, i64 32, !18, i64 48}
!9 = !{!"arm_2d_region_t", !10, i64 0, !10, i64 4}
!10 = !{!"omnipotent char", !11, i64 0}
!11 = !{!"Simple C/C++ TBAA"}
!12 = !{!"", !13, i64 0, !14, i64 8, !16, i64 12, !16, i64 15, !16, i64 16, !16, i64 17, !16, i64 17, !16, i64 17, !16, i64 17, !16, i64 18, !16, i64 19, !16, i64 19}
!13 = !{!"any pointer", !10, i64 0}
!14 = !{!"arm_2d_size_t", !15, i64 0, !15, i64 2}
!15 = !{!"short", !10, i64 0}
!16 = !{!"int", !10, i64 0}
!17 = !{!"", !13, i64 0, !10, i64 8}
!18 = !{!"arm_2d_helper_pfb_dependency_t", !19, i64 0, !20, i64 16, !21, i64 32, !21, i64 48, !22, i64 64, !23, i64 88}
!19 = !{!"arm_2d_helper_render_evt_t", !13, i64 0, !13, i64 8}
!20 = !{!"arm_2d_helper_draw_evt_t", !13, i64 0, !13, i64 8}
!21 = !{!"arm_2d_evt_t", !13, i64 0, !13, i64 8}
!22 = !{!"", !20, i64 0, !13, i64 16}
!23 = !{!"arm_2d_helper_before_flushing_evt_t", !13, i64 0, !13, i64 8}
!24 = !{!"", !25, i64 0, !9, i64 4, !13, i64 16, !26, i64 24, !30, i64 88, !14, i64 112, !16, i64 116, !10, i64 120, !10, i64 121, !15, i64 122, !31, i64 124, !10, i64 128, !32, i64 136, !13, i64 144, !13, i64 152, !13, i64 160, !33, i64 168, !13, i64 184}
!25 = !{!"arm_2d_location_t", !15, i64 0, !15, i64 2}
!26 = !{!"", !13, i64 0, !13, i64 8, !13, i64 16, !13, i64 24, !27, i64 32}
!27 = !{!"arm_2d_region_list_item_t", !13, i64 0, !28, i64 8, !9, i64 16, !29, i64 24}
!28 = !{!"", !13, i64 0}
!29 = !{!"", !10, i64 0, !10, i64 1, !10, i64 1, !15, i64 2, !15, i64 2, !15, i64 2, !15, i64 2}
!30 = !{!"arm_2d_tile_t", !10, i64 0, !10, i64 4, !10, i64 16}
!31 = !{!"", !16, i64 0, !16, i64 0, !16, i64 0, !16, i64 0, !16, i64 0, !16, i64 0, !16, i64 0, !16, i64 0, !16, i64 1, !16, i64 1, !16, i64 1, !16, i64 1, !16, i64 1, !16, i64 1, !16, i64 1, !16, i64 1, !16, i64 2}
!32 = !{!"long", !10, i64 0}
!33 = !{!"", !13, i64 0, !13, i64 8}
!34 = !{!"", !32, i64 0, !16, i64 8, !16, i64 12}
!35 = !{!6, !13, i64 304}
!36 = !{!37, !13, i64 0}
!37 = !{!"__arm_slist_node_t", !13, i64 0}
!38 = !{!13, !13, i64 0}
!39 = !{!40, !13, i64 8}
!40 = !{!"arm_2d_pfb_t", !13, i64 0, !13, i64 8, !30, i64 16, !16, i64 40, !16, i64 43, !16, i64 43}


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