; LLVM IR from Samson-Mano/EM_Propogation_simulation :: EM_Propogation_simulation/src/ImGui (stb_implement)

; 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.stbi__zbuf = type { ptr, ptr, i32, i32, ptr, ptr, ptr, i32, %struct.stbi__zhuffman, %struct.stbi__zhuffman }
%struct.stbi__zhuffman = type { [512 x i16], [16 x i16], [17 x i32], [16 x i16], [288 x i8], [288 x i16] }

; Function Attrs: nounwind
declare void @free(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: mustprogress nounwind uwtable
declare hidden noundef ptr @_ZL12stbi__mallocm(i64 noundef) #2

; Function Attrs: mustprogress uwtable
declare hidden noundef i32 @_ZL13stbi__do_zlibP10stbi__zbufPciii(ptr noundef, ptr noundef, i32 noundef, i32 noundef, i32 noundef) #3

; Function Attrs: mustprogress uwtable
define dso_local ptr @stbi_zlib_decode_noheader_malloc(ptr noundef %0, i32 noundef %1, ptr noundef %2) #3 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca %struct.stbi__zbuf, align 8
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !9
  store ptr %2, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4096, ptr %8) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #4
  %11 = call noundef ptr @_ZL12stbi__mallocm(i64 noundef 16384)
  store ptr %11, ptr %9, align 8, !tbaa !5
  %12 = load ptr, ptr %9, align 8, !tbaa !5
  %13 = icmp eq ptr %12, null
  br i1 %13, label %14, label %15

14:                                               ; preds = %3
  store ptr null, ptr %4, align 8
  store i32 1, ptr %10, align 4
  br label %45

15:                                               ; preds = %3
  %16 = load ptr, ptr %5, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.stbi__zbuf, ptr %8, i32 0, i32 0
  store ptr %16, ptr %17, align 8, !tbaa !11
  %18 = load ptr, ptr %5, align 8, !tbaa !5
  %19 = load i32, ptr %6, align 4, !tbaa !9
  %20 = sext i32 %19 to i64
  %21 = getelementptr inbounds i8, ptr %18, i64 %20
  %22 = getelementptr inbounds %struct.stbi__zbuf, ptr %8, i32 0, i32 1
  store ptr %21, ptr %22, align 8, !tbaa !14
  %23 = load ptr, ptr %9, align 8, !tbaa !5
  %24 = call noundef i32 @_ZL13stbi__do_zlibP10stbi__zbufPciii(ptr noundef %8, ptr noundef %23, i32 noundef 16384, i32 noundef 1, i32 noundef 0)
  %25 = icmp ne i32 %24, 0
  br i1 %25, label %26, label %42

26:                                               ; preds = %15
  %27 = load ptr, ptr %7, align 8, !tbaa !5
  %28 = icmp ne ptr %27, null
  br i1 %28, label %29, label %39

29:                                               ; preds = %26
  %30 = getelementptr inbounds %struct.stbi__zbuf, ptr %8, i32 0, i32 4
  %31 = load ptr, ptr %30, align 8, !tbaa !15
  %32 = getelementptr inbounds %struct.stbi__zbuf, ptr %8, i32 0, i32 5
  %33 = load ptr, ptr %32, align 8, !tbaa !16
  %34 = ptrtoint ptr %31 to i64
  %35 = ptrtoint ptr %33 to i64
  %36 = sub i64 %34, %35
  %37 = trunc i64 %36 to i32
  %38 = load ptr, ptr %7, align 8, !tbaa !5
  store i32 %37, ptr %38, align 4, !tbaa !9
  br label %39

39:                                               ; preds = %29, %26
  %40 = getelementptr inbounds %struct.stbi__zbuf, ptr %8, i32 0, i32 5
  %41 = load ptr, ptr %40, align 8, !tbaa !16
  store ptr %41, ptr %4, align 8
  store i32 1, ptr %10, align 4
  br label %45

42:                                               ; preds = %15
  %43 = getelementptr inbounds %struct.stbi__zbuf, ptr %8, i32 0, i32 5
  %44 = load ptr, ptr %43, align 8, !tbaa !16
  call void @free(ptr noundef %44) #4
  store ptr null, ptr %4, align 8
  store i32 1, ptr %10, align 4
  br label %45

45:                                               ; preds = %42, %39, %14
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 4096, ptr %8) #4
  %46 = load ptr, ptr %4, align 8
  ret ptr %46
}

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { 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 #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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !6, i64 0}
!12 = !{!"_ZTS10stbi__zbuf", !6, i64 0, !6, i64 8, !10, i64 16, !10, i64 20, !6, i64 24, !6, i64 32, !6, i64 40, !10, i64 48, !13, i64 52, !13, i64 2072}
!13 = !{!"_ZTS14stbi__zhuffman", !7, i64 0, !7, i64 1024, !7, i64 1056, !7, i64 1124, !7, i64 1156, !7, i64 1444}
!14 = !{!12, !6, i64 8}
!15 = !{!12, !6, i64 24}
!16 = !{!12, !6, i64 32}


; 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.stbi__zbuf = type { ptr, ptr, i32, i32, ptr, ptr, ptr, i32, %struct.stbi__zhuffman, %struct.stbi__zhuffman }
%struct.stbi__zhuffman = type { [512 x i16], [16 x i16], [17 x i32], [16 x i16], [288 x i8], [288 x i16] }

; Function Attrs: mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @free(ptr allocptr nocapture noundef) local_unnamed_addr #0

; 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
declare hidden noundef ptr @_ZL12stbi__mallocm(i64 noundef) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
declare hidden noundef i32 @_ZL13stbi__do_zlibP10stbi__zbufPciii(ptr noundef, ptr noundef, i32 noundef, i32 noundef, i32 noundef) local_unnamed_addr #3

; Function Attrs: mustprogress uwtable
define dso_local ptr @stbi_zlib_decode_noheader_malloc(ptr noundef %0, i32 noundef %1, ptr noundef writeonly %2) local_unnamed_addr #3 {
  %4 = alloca %struct.stbi__zbuf, align 8
  call void @llvm.lifetime.start.p0(i64 4096, ptr nonnull %4) #4
  %5 = tail call noundef ptr @_ZL12stbi__mallocm(i64 noundef 16384)
  %6 = icmp eq ptr %5, null
  br i1 %6, label %25, label %7

7:                                                ; preds = %3
  store ptr %0, ptr %4, align 8, !tbaa !5
  %8 = sext i32 %1 to i64
  %9 = getelementptr inbounds i8, ptr %0, i64 %8
  %10 = getelementptr inbounds i8, ptr %4, i64 8
  store ptr %9, ptr %10, align 8, !tbaa !12
  %11 = call noundef i32 @_ZL13stbi__do_zlibP10stbi__zbufPciii(ptr noundef nonnull %4, ptr noundef nonnull %5, i32 noundef 16384, i32 noundef 1, i32 noundef 0)
  %.not = icmp eq i32 %11, 0
  br i1 %.not, label %22, label %12

12:                                               ; preds = %7
  %.not9 = icmp eq ptr %2, null
  br i1 %.not9, label %._crit_edge, label %13

._crit_edge:                                      ; preds = %12
  %.phi.trans.insert = getelementptr inbounds i8, ptr %4, i64 32
  %.pre = load ptr, ptr %.phi.trans.insert, align 8, !tbaa !13
  br label %25

13:                                               ; preds = %12
  %14 = getelementptr inbounds i8, ptr %4, i64 24
  %15 = load ptr, ptr %14, align 8, !tbaa !14
  %16 = getelementptr inbounds i8, ptr %4, i64 32
  %17 = load ptr, ptr %16, align 8, !tbaa !13
  %18 = ptrtoint ptr %15 to i64
  %19 = ptrtoint ptr %17 to i64
  %20 = sub i64 %18, %19
  %21 = trunc i64 %20 to i32
  store i32 %21, ptr %2, align 4, !tbaa !15
  br label %25

22:                                               ; preds = %7
  %23 = getelementptr inbounds i8, ptr %4, i64 32
  %24 = load ptr, ptr %23, align 8, !tbaa !13
  call void @free(ptr noundef %24) #4
  br label %25

25:                                               ; preds = %13, %._crit_edge, %3, %22
  %.0 = phi ptr [ null, %22 ], [ null, %3 ], [ %.pre, %._crit_edge ], [ %17, %13 ]
  call void @llvm.lifetime.end.p0(i64 4096, ptr nonnull %4) #4
  ret ptr %.0
}

attributes #0 = { mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite) "alloc-family"="malloc" "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 = { 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 #3 = { 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 #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, !7, i64 0}
!6 = !{!"_ZTS10stbi__zbuf", !7, i64 0, !7, i64 8, !10, i64 16, !10, i64 20, !7, i64 24, !7, i64 32, !7, i64 40, !10, i64 48, !11, i64 52, !11, i64 2072}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!"_ZTS14stbi__zhuffman", !8, i64 0, !8, i64 1024, !8, i64 1056, !8, i64 1124, !8, i64 1156, !8, i64 1444}
!12 = !{!6, !7, i64 8}
!13 = !{!6, !7, i64 32}
!14 = !{!6, !7, i64 24}
!15 = !{!10, !10, i64 0}


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