; LLVM IR from jingweizhanghuai/Morn :: src/util (morn_memory_block)

; 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.MMemoryBlock = type { i32, i32, ptr, ptr, ptr, i32 }

@.str = external hidden unnamed_addr constant [84 x i8], align 1
@__FUNCTION__.mMemoryBlock = external hidden unnamed_addr constant [13 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [21 x i8], align 1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

declare void @m_Exception(i32 noundef, i32 noundef, ptr noundef, i32 noundef, ptr noundef, ptr noundef, ...) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind uwtable
define dso_local ptr @mMemoryBlock(ptr noundef %0) #2 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  %5 = load ptr, ptr %2, align 8, !tbaa !5
  %6 = getelementptr inbounds %struct.MMemoryBlock, ptr %5, i64 -1
  store ptr %6, ptr %3, align 8, !tbaa !5
  br label %7

7:                                                ; preds = %1
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #3
  %8 = load ptr, ptr %3, align 8, !tbaa !5
  %9 = getelementptr inbounds %struct.MMemoryBlock, ptr %8, i32 0, i32 2
  %10 = load ptr, ptr %9, align 8, !tbaa !9
  %11 = load ptr, ptr %2, align 8, !tbaa !5
  %12 = icmp ne ptr %10, %11
  %13 = zext i1 %12 to i32
  store i32 %13, ptr %4, align 4, !tbaa !12
  %14 = load i32, ptr %4, align 4, !tbaa !12
  %15 = icmp ne i32 %14, 0
  br i1 %15, label %16, label %18

16:                                               ; preds = %7
  %17 = load i32, ptr %4, align 4, !tbaa !12
  call void (i32, i32, ptr, i32, ptr, ptr, ...) @m_Exception(i32 noundef %17, i32 noundef -1, ptr noundef @.str, i32 noundef 223, ptr noundef @__FUNCTION__.mMemoryBlock, ptr noundef @.str.2)
  br label %18

18:                                               ; preds = %16, %7
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #3
  br label %19

19:                                               ; preds = %18
  br label %20

20:                                               ; preds = %19
  %21 = load ptr, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  ret ptr %21
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !6, i64 8}
!10 = !{!"MMemoryBlock", !11, i64 0, !11, i64 4, !6, i64 8, !6, i64 16, !6, i64 24, !11, i64 32}
!11 = !{!"int", !7, i64 0}
!12 = !{!11, !11, 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"

@.str = external hidden unnamed_addr constant [84 x i8], align 1
@__FUNCTION__.mMemoryBlock = external hidden unnamed_addr constant [13 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [21 x i8], align 1

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

; Function Attrs: nounwind uwtable
define dso_local nonnull ptr @mMemoryBlock(ptr noundef readonly %0) local_unnamed_addr #1 {
  %2 = getelementptr inbounds i8, ptr %0, i64 -32
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %.not = icmp eq ptr %3, %0
  br i1 %.not, label %5, label %4

4:                                                ; preds = %1
  tail call void (i32, i32, ptr, i32, ptr, ptr, ...) @m_Exception(i32 noundef 1, i32 noundef -1, ptr noundef nonnull @.str, i32 noundef 223, ptr noundef nonnull @__FUNCTION__.mMemoryBlock, ptr noundef nonnull @.str.2) #2
  br label %5

5:                                                ; preds = %4, %1
  %6 = getelementptr inbounds i8, ptr %0, i64 -40
  ret ptr %6
}

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 = { 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 }

!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 8}
!6 = !{!"MMemoryBlock", !7, i64 0, !7, i64 4, !10, i64 8, !10, i64 16, !10, i64 24, !7, i64 32}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}


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