; LLVM IR from jingweizhanghuai/Morn :: test (test_message3)

; 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.MessageData = type { [32 x i8], [64 x i8] }

@.str = external hidden unnamed_addr constant [7 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local void @func(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 void @morn_server() #0 {
  %1 = alloca ptr, align 8
  %2 = alloca i32, align 4
  br label %3

3:                                                ; preds = %20, %0
  call void @llvm.lifetime.start.p0(i64 8, ptr %1) #4
  %4 = call ptr @m_ProcMessageRead(ptr noundef @.str, ptr noundef null, ptr noundef null)
  store ptr %4, ptr %1, align 8, !tbaa !5
  %5 = load ptr, ptr %1, align 8, !tbaa !5
  %6 = call i32 @strcmp(ptr noundef %5, ptr noundef @.str.1) #5
  %7 = icmp eq i32 %6, 0
  br i1 %7, label %8, label %9

8:                                                ; preds = %3
  store i32 3, ptr %2, align 4
  br label %18

9:                                                ; preds = %3
  %10 = load ptr, ptr %1, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.MessageData, ptr %10, i32 0, i32 1
  %12 = getelementptr inbounds [64 x i8], ptr %11, i64 0, i64 0
  call void @func(ptr noundef %12)
  %13 = load ptr, ptr %1, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.MessageData, ptr %13, i32 0, i32 0
  %15 = getelementptr inbounds [32 x i8], ptr %14, i64 0, i64 0
  %16 = load ptr, ptr %1, align 8, !tbaa !5
  %17 = call ptr @m_ProcMessageWrite(ptr noundef %15, ptr noundef %16, i32 noundef 96)
  store i32 0, ptr %2, align 4
  br label %18

18:                                               ; preds = %9, %8
  call void @llvm.lifetime.end.p0(i64 8, ptr %1) #4
  %19 = load i32, ptr %2, align 4
  switch i32 %19, label %22 [
    i32 0, label %20
    i32 3, label %21
  ]

20:                                               ; preds = %18
  br label %3

21:                                               ; preds = %18
  ret void

22:                                               ; preds = %18
  unreachable
}

declare ptr @m_ProcMessageRead(ptr noundef, ptr noundef, ptr noundef) #2

; Function Attrs: nounwind willreturn memory(read)
declare i32 @strcmp(ptr noundef, ptr noundef) #3

declare ptr @m_ProcMessageWrite(ptr noundef, ptr noundef, i32 noundef) #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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { "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 willreturn memory(read) "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 }
attributes #5 = { nounwind willreturn memory(read) }

!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"}


; 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"

@.str = external hidden unnamed_addr constant [7 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local void @func(ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @morn_server() local_unnamed_addr #0 {
  %1 = tail call ptr @m_ProcMessageRead(ptr noundef nonnull @.str, ptr noundef null, ptr noundef null) #3
  %2 = tail call i32 @strcmp(ptr noundef nonnull dereferenceable(1) %1, ptr noundef nonnull dereferenceable(1) @.str.1) #4
  %3 = icmp eq i32 %2, 0
  br i1 %3, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %0, %.lr.ph
  %4 = phi ptr [ %7, %.lr.ph ], [ %1, %0 ]
  %5 = getelementptr inbounds i8, ptr %4, i64 32
  tail call void @func(ptr noundef nonnull %5)
  %6 = tail call ptr @m_ProcMessageWrite(ptr noundef %4, ptr noundef %4, i32 noundef 96) #3
  %7 = tail call ptr @m_ProcMessageRead(ptr noundef nonnull @.str, ptr noundef null, ptr noundef null) #3
  %8 = tail call i32 @strcmp(ptr noundef nonnull dereferenceable(1) %7, ptr noundef nonnull dereferenceable(1) @.str.1) #4
  %9 = icmp eq i32 %8, 0
  br i1 %9, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph, %0
  ret void
}

declare ptr @m_ProcMessageRead(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nofree nounwind willreturn memory(argmem: read)
declare i32 @strcmp(ptr nocapture noundef, ptr nocapture noundef) local_unnamed_addr #2

declare ptr @m_ProcMessageWrite(ptr noundef, ptr noundef, i32 noundef) local_unnamed_addr #1

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 = { "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 = { mustprogress nofree nounwind willreturn memory(argmem: read) "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 = { nounwind willreturn memory(read) }

!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,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass