; LLVM IR from Samson-Mano/EM_Propogation_simulation :: EM_Propogation_simulation/src/ImGui/imgui_draw.ll (ZN10ImDrawList17_TryMergeDrawCmdsEv)

; 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.ImDrawList = type <{ %struct.ImVector.0, %struct.ImVector.1, %struct.ImVector.2, i32, i32, ptr, ptr, ptr, ptr, %struct.ImVector.3, %struct.ImVector.4, %struct.ImVector, %struct.ImDrawCmdHeader, %struct.ImDrawListSplitter, float, [4 x i8] }>
%struct.ImVector.0 = type { i32, i32, ptr }
%struct.ImVector.1 = type { i32, i32, ptr }
%struct.ImVector.2 = type { i32, i32, ptr }
%struct.ImVector.3 = type { i32, i32, ptr }
%struct.ImVector.4 = type { i32, i32, ptr }
%struct.ImVector = type { i32, i32, ptr }
%struct.ImDrawCmdHeader = type <{ %struct.ImVec4, ptr, i32, [4 x i8] }>
%struct.ImVec4 = type { float, float, float, float }
%struct.ImDrawListSplitter = type { i32, i32, %struct.ImVector.5 }
%struct.ImVector.5 = type { i32, i32, ptr }
%struct.ImDrawCmd = type { %struct.ImVec4, ptr, i32, i32, i32, ptr, ptr }

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

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

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN8ImVectorI9ImDrawCmdE8pop_backEv(ptr noundef nonnull align 8 dereferenceable(16)) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN10ImDrawList17_TryMergeDrawCmdsEv(ptr noundef nonnull align 8 dereferenceable(196) %0) #2 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %5 = load ptr, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #4
  %6 = getelementptr inbounds %struct.ImDrawList, ptr %5, i32 0, i32 0
  %7 = getelementptr inbounds %struct.ImVector.0, ptr %6, i32 0, i32 2
  %8 = load ptr, ptr %7, align 8, !tbaa !9
  %9 = getelementptr inbounds %struct.ImDrawList, ptr %5, i32 0, i32 0
  %10 = getelementptr inbounds %struct.ImVector.0, ptr %9, i32 0, i32 0
  %11 = load i32, ptr %10, align 8, !tbaa !23
  %12 = sub nsw i32 %11, 1
  %13 = sext i32 %12 to i64
  %14 = getelementptr inbounds %struct.ImDrawCmd, ptr %8, i64 %13
  store ptr %14, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #4
  %15 = load ptr, ptr %3, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.ImDrawCmd, ptr %15, i64 -1
  store ptr %16, ptr %4, align 8, !tbaa !5
  %17 = load ptr, ptr %3, align 8, !tbaa !5
  %18 = load ptr, ptr %4, align 8, !tbaa !5
  %19 = call i32 @memcmp(ptr noundef %17, ptr noundef %18, i64 noundef 28) #5
  %20 = icmp eq i32 %19, 0
  br i1 %20, label %21, label %52

21:                                               ; preds = %1
  %22 = load ptr, ptr %4, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct.ImDrawCmd, ptr %22, i32 0, i32 3
  %24 = load i32, ptr %23, align 4, !tbaa !24
  %25 = load ptr, ptr %4, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.ImDrawCmd, ptr %25, i32 0, i32 4
  %27 = load i32, ptr %26, align 8, !tbaa !26
  %28 = add i32 %24, %27
  %29 = load ptr, ptr %3, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.ImDrawCmd, ptr %29, i32 0, i32 3
  %31 = load i32, ptr %30, align 4, !tbaa !24
  %32 = icmp eq i32 %28, %31
  br i1 %32, label %33, label %52

33:                                               ; preds = %21
  %34 = load ptr, ptr %3, align 8, !tbaa !5
  %35 = getelementptr inbounds %struct.ImDrawCmd, ptr %34, i32 0, i32 5
  %36 = load ptr, ptr %35, align 8, !tbaa !27
  %37 = icmp eq ptr %36, null
  br i1 %37, label %38, label %52

38:                                               ; preds = %33
  %39 = load ptr, ptr %4, align 8, !tbaa !5
  %40 = getelementptr inbounds %struct.ImDrawCmd, ptr %39, i32 0, i32 5
  %41 = load ptr, ptr %40, align 8, !tbaa !27
  %42 = icmp eq ptr %41, null
  br i1 %42, label %43, label %52

43:                                               ; preds = %38
  %44 = load ptr, ptr %3, align 8, !tbaa !5
  %45 = getelementptr inbounds %struct.ImDrawCmd, ptr %44, i32 0, i32 4
  %46 = load i32, ptr %45, align 8, !tbaa !26
  %47 = load ptr, ptr %4, align 8, !tbaa !5
  %48 = getelementptr inbounds %struct.ImDrawCmd, ptr %47, i32 0, i32 4
  %49 = load i32, ptr %48, align 8, !tbaa !26
  %50 = add i32 %49, %46
  store i32 %50, ptr %48, align 8, !tbaa !26
  %51 = getelementptr inbounds %struct.ImDrawList, ptr %5, i32 0, i32 0
  call void @_ZN8ImVectorI9ImDrawCmdE8pop_backEv(ptr noundef nonnull align 8 dereferenceable(16) %51)
  br label %52

52:                                               ; preds = %43, %38, %33, %21, %1
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #4
  ret void
}

; Function Attrs: nounwind willreturn memory(read)
declare i32 @memcmp(ptr noundef, ptr noundef, i64 noundef) #3

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { inlinehint 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 #2 = { mustprogress 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 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++ TBAA"}
!9 = !{!10, !6, i64 8}
!10 = !{!"_ZTS10ImDrawList", !11, i64 0, !13, i64 16, !14, i64 32, !12, i64 48, !12, i64 52, !6, i64 56, !6, i64 64, !6, i64 72, !6, i64 80, !15, i64 88, !16, i64 104, !17, i64 120, !18, i64 136, !21, i64 168, !20, i64 192}
!11 = !{!"_ZTS8ImVectorI9ImDrawCmdE", !12, i64 0, !12, i64 4, !6, i64 8}
!12 = !{!"int", !7, i64 0}
!13 = !{!"_ZTS8ImVectorItE", !12, i64 0, !12, i64 4, !6, i64 8}
!14 = !{!"_ZTS8ImVectorI10ImDrawVertE", !12, i64 0, !12, i64 4, !6, i64 8}
!15 = !{!"_ZTS8ImVectorI6ImVec4E", !12, i64 0, !12, i64 4, !6, i64 8}
!16 = !{!"_ZTS8ImVectorIPvE", !12, i64 0, !12, i64 4, !6, i64 8}
!17 = !{!"_ZTS8ImVectorI6ImVec2E", !12, i64 0, !12, i64 4, !6, i64 8}
!18 = !{!"_ZTS15ImDrawCmdHeader", !19, i64 0, !6, i64 16, !12, i64 24}
!19 = !{!"_ZTS6ImVec4", !20, i64 0, !20, i64 4, !20, i64 8, !20, i64 12}
!20 = !{!"float", !7, i64 0}
!21 = !{!"_ZTS18ImDrawListSplitter", !12, i64 0, !12, i64 4, !22, i64 8}
!22 = !{!"_ZTS8ImVectorI13ImDrawChannelE", !12, i64 0, !12, i64 4, !6, i64 8}
!23 = !{!10, !12, i64 0}
!24 = !{!25, !12, i64 28}
!25 = !{!"_ZTS9ImDrawCmd", !19, i64 0, !6, i64 16, !12, i64 24, !12, i64 28, !12, i64 32, !6, i64 40, !6, i64 48}
!26 = !{!25, !12, i64 32}
!27 = !{!25, !6, i64 40}


; 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"

%struct.ImDrawCmd = type { %struct.ImVec4, ptr, i32, i32, i32, ptr, ptr }
%struct.ImVec4 = type { float, float, float, float }

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN8ImVectorI9ImDrawCmdE8pop_backEv(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN10ImDrawList17_TryMergeDrawCmdsEv(ptr noundef nonnull align 8 dereferenceable(196) %0) local_unnamed_addr #1 align 2 {
  %2 = getelementptr inbounds i8, ptr %0, i64 8
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %4 = load i32, ptr %0, align 8, !tbaa !22
  %5 = sext i32 %4 to i64
  %6 = getelementptr %struct.ImDrawCmd, ptr %3, i64 %5
  %7 = getelementptr i8, ptr %6, i64 -56
  %8 = getelementptr i8, ptr %6, i64 -112
  %bcmp = tail call i32 @bcmp(ptr noundef nonnull dereferenceable(28) %7, ptr noundef nonnull dereferenceable(28) %8, i64 28)
  %9 = icmp eq i32 %bcmp, 0
  br i1 %9, label %10, label %31

10:                                               ; preds = %1
  %11 = getelementptr i8, ptr %6, i64 -84
  %12 = load i32, ptr %11, align 4, !tbaa !23
  %13 = getelementptr i8, ptr %6, i64 -80
  %14 = load i32, ptr %13, align 8, !tbaa !25
  %15 = add i32 %14, %12
  %16 = getelementptr i8, ptr %6, i64 -28
  %17 = load i32, ptr %16, align 4, !tbaa !23
  %18 = icmp eq i32 %15, %17
  br i1 %18, label %19, label %31

19:                                               ; preds = %10
  %20 = getelementptr i8, ptr %6, i64 -16
  %21 = load ptr, ptr %20, align 8, !tbaa !26
  %22 = icmp eq ptr %21, null
  br i1 %22, label %23, label %31

23:                                               ; preds = %19
  %24 = getelementptr i8, ptr %6, i64 -72
  %25 = load ptr, ptr %24, align 8, !tbaa !26
  %26 = icmp eq ptr %25, null
  br i1 %26, label %27, label %31

27:                                               ; preds = %23
  %28 = getelementptr i8, ptr %6, i64 -24
  %29 = load i32, ptr %28, align 8, !tbaa !25
  %30 = add i32 %29, %14
  store i32 %30, ptr %13, align 8, !tbaa !25
  tail call void @_ZN8ImVectorI9ImDrawCmdE8pop_backEv(ptr noundef nonnull align 8 dereferenceable(16) %0)
  br label %31

31:                                               ; preds = %27, %23, %19, %10, %1
  ret void
}

; Function Attrs: nofree nounwind willreturn memory(argmem: read)
declare i32 @bcmp(ptr nocapture, ptr nocapture, i64) local_unnamed_addr #2

attributes #0 = { inlinehint 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 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 = { nofree nounwind willreturn memory(argmem: 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, !11, i64 8}
!6 = !{!"_ZTS10ImDrawList", !7, i64 0, !12, i64 16, !13, i64 32, !8, i64 48, !8, i64 52, !11, i64 56, !11, i64 64, !11, i64 72, !11, i64 80, !14, i64 88, !15, i64 104, !16, i64 120, !17, i64 136, !20, i64 168, !19, i64 192}
!7 = !{!"_ZTS8ImVectorI9ImDrawCmdE", !8, i64 0, !8, i64 4, !11, i64 8}
!8 = !{!"int", !9, i64 0}
!9 = !{!"omnipotent char", !10, i64 0}
!10 = !{!"Simple C++ TBAA"}
!11 = !{!"any pointer", !9, i64 0}
!12 = !{!"_ZTS8ImVectorItE", !8, i64 0, !8, i64 4, !11, i64 8}
!13 = !{!"_ZTS8ImVectorI10ImDrawVertE", !8, i64 0, !8, i64 4, !11, i64 8}
!14 = !{!"_ZTS8ImVectorI6ImVec4E", !8, i64 0, !8, i64 4, !11, i64 8}
!15 = !{!"_ZTS8ImVectorIPvE", !8, i64 0, !8, i64 4, !11, i64 8}
!16 = !{!"_ZTS8ImVectorI6ImVec2E", !8, i64 0, !8, i64 4, !11, i64 8}
!17 = !{!"_ZTS15ImDrawCmdHeader", !18, i64 0, !11, i64 16, !8, i64 24}
!18 = !{!"_ZTS6ImVec4", !19, i64 0, !19, i64 4, !19, i64 8, !19, i64 12}
!19 = !{!"float", !9, i64 0}
!20 = !{!"_ZTS18ImDrawListSplitter", !8, i64 0, !8, i64 4, !21, i64 8}
!21 = !{!"_ZTS8ImVectorI13ImDrawChannelE", !8, i64 0, !8, i64 4, !11, i64 8}
!22 = !{!6, !8, i64 0}
!23 = !{!24, !8, i64 28}
!24 = !{!"_ZTS9ImDrawCmd", !18, i64 0, !11, i64 16, !8, i64 24, !8, i64 28, !8, i64 32, !11, i64 40, !11, i64 48}
!25 = !{!24, !8, i64 32}
!26 = !{!24, !11, i64 40}


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