; LLVM IR from q191201771/libchef :: include/chef_base/.invisible/.deprecated (chunk_head_op)

; 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.chef::chunk_head" = type { i64, i32, i32, i32 }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN4chef13chunk_head_op18swap_if_big_endianEPci(ptr noundef, i32 noundef) #0 align 2

; 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: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #2

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i32 @_ZN4chef13chunk_head_op6decodeEPKcPNS_10chunk_headE(ptr noundef %0, ptr noundef %1) #0 align 2 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  %8 = load ptr, ptr %4, align 8, !tbaa !5
  %9 = getelementptr inbounds i8, ptr %8, i64 12
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %6, ptr align 1 %9, i64 4, i1 false)
  call void @_ZN4chef13chunk_head_op18swap_if_big_endianEPci(ptr noundef %6, i32 noundef 4)
  %10 = load i32, ptr %6, align 4, !tbaa !9
  %11 = icmp ne i32 %10, 191201771
  br i1 %11, label %12, label %13

12:                                               ; preds = %2
  store i32 -1, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %37

13:                                               ; preds = %2
  %14 = load ptr, ptr %5, align 8, !tbaa !5
  %15 = getelementptr inbounds %"struct.chef::chunk_head", ptr %14, i32 0, i32 0
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %15, ptr align 1 %16, i64 8, i1 false)
  %17 = load ptr, ptr %5, align 8, !tbaa !5
  %18 = getelementptr inbounds %"struct.chef::chunk_head", ptr %17, i32 0, i32 0
  call void @_ZN4chef13chunk_head_op18swap_if_big_endianEPci(ptr noundef %18, i32 noundef 8)
  %19 = load ptr, ptr %5, align 8, !tbaa !5
  %20 = getelementptr inbounds %"struct.chef::chunk_head", ptr %19, i32 0, i32 1
  %21 = load ptr, ptr %4, align 8, !tbaa !5
  %22 = getelementptr inbounds i8, ptr %21, i64 8
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %20, ptr align 1 %22, i64 4, i1 false)
  %23 = load ptr, ptr %5, align 8, !tbaa !5
  %24 = getelementptr inbounds %"struct.chef::chunk_head", ptr %23, i32 0, i32 1
  call void @_ZN4chef13chunk_head_op18swap_if_big_endianEPci(ptr noundef %24, i32 noundef 4)
  %25 = load ptr, ptr %5, align 8, !tbaa !5
  %26 = getelementptr inbounds %"struct.chef::chunk_head", ptr %25, i32 0, i32 2
  %27 = load ptr, ptr %4, align 8, !tbaa !5
  %28 = getelementptr inbounds i8, ptr %27, i64 16
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %26, ptr align 1 %28, i64 4, i1 false)
  %29 = load ptr, ptr %5, align 8, !tbaa !5
  %30 = getelementptr inbounds %"struct.chef::chunk_head", ptr %29, i32 0, i32 2
  call void @_ZN4chef13chunk_head_op18swap_if_big_endianEPci(ptr noundef %30, i32 noundef 4)
  %31 = load ptr, ptr %5, align 8, !tbaa !5
  %32 = getelementptr inbounds %"struct.chef::chunk_head", ptr %31, i32 0, i32 3
  %33 = load ptr, ptr %4, align 8, !tbaa !5
  %34 = getelementptr inbounds i8, ptr %33, i64 20
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %32, ptr align 1 %34, i64 4, i1 false)
  %35 = load ptr, ptr %5, align 8, !tbaa !5
  %36 = getelementptr inbounds %"struct.chef::chunk_head", ptr %35, i32 0, i32 3
  call void @_ZN4chef13chunk_head_op18swap_if_big_endianEPci(ptr noundef %36, i32 noundef 4)
  store i32 0, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %37

37:                                               ; preds = %13, %12
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  %38 = load i32, ptr %3, align 4
  ret i32 %38
}

attributes #0 = { mustprogress 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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}


; 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 nounwind uwtable
declare dso_local void @_ZN4chef13chunk_head_op18swap_if_big_endianEPci(ptr noundef, i32 noundef) local_unnamed_addr #0 align 2

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

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

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef range(i32 -1, 1) i32 @_ZN4chef13chunk_head_op6decodeEPKcPNS_10chunk_headE(ptr nocapture noundef readonly %0, ptr noundef %1) local_unnamed_addr #0 align 2 {
  %3 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #2
  %4 = getelementptr inbounds i8, ptr %0, i64 12
  %5 = load i32, ptr %4, align 1
  store i32 %5, ptr %3, align 4
  call void @_ZN4chef13chunk_head_op18swap_if_big_endianEPci(ptr noundef nonnull %3, i32 noundef 4)
  %6 = load i32, ptr %3, align 4, !tbaa !5
  %.not = icmp eq i32 %6, 191201771
  br i1 %.not, label %7, label %18

7:                                                ; preds = %2
  %8 = load i64, ptr %0, align 1
  store i64 %8, ptr %1, align 8
  call void @_ZN4chef13chunk_head_op18swap_if_big_endianEPci(ptr noundef nonnull %1, i32 noundef 8)
  %9 = getelementptr inbounds i8, ptr %1, i64 8
  %10 = getelementptr inbounds i8, ptr %0, i64 8
  %11 = load i32, ptr %10, align 1
  store i32 %11, ptr %9, align 8
  call void @_ZN4chef13chunk_head_op18swap_if_big_endianEPci(ptr noundef nonnull %9, i32 noundef 4)
  %12 = getelementptr inbounds i8, ptr %1, i64 12
  %13 = getelementptr inbounds i8, ptr %0, i64 16
  %14 = load i32, ptr %13, align 1
  store i32 %14, ptr %12, align 4
  call void @_ZN4chef13chunk_head_op18swap_if_big_endianEPci(ptr noundef nonnull %12, i32 noundef 4)
  %15 = getelementptr inbounds i8, ptr %1, i64 16
  %16 = getelementptr inbounds i8, ptr %0, i64 20
  %17 = load i32, ptr %16, align 1
  store i32 %17, ptr %15, align 8
  call void @_ZN4chef13chunk_head_op18swap_if_big_endianEPci(ptr noundef nonnull %15, i32 noundef 4)
  br label %18

18:                                               ; preds = %2, %7
  %.0 = phi i32 [ 0, %7 ], [ -1, %2 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #2
  ret i32 %.0
}

attributes #0 = { mustprogress 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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


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