; LLVM IR from itchio/go-brotli :: enc (memory)

; 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.MemoryManager = type { ptr, ptr, ptr }

; Function Attrs: nounwind uwtable
define hidden void @BrotliInitMemoryManager(ptr noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3) #0 {
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !5
  store ptr %3, ptr %8, align 8, !tbaa !5
  %9 = load ptr, ptr %6, align 8, !tbaa !5
  %10 = icmp ne ptr %9, null
  br i1 %10, label %18, label %11

11:                                               ; preds = %4
  %12 = load ptr, ptr %5, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.MemoryManager, ptr %12, i32 0, i32 0
  store ptr @DefaultAllocFunc, ptr %13, align 8, !tbaa !9
  %14 = load ptr, ptr %5, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.MemoryManager, ptr %14, i32 0, i32 1
  store ptr @DefaultFreeFunc, ptr %15, align 8, !tbaa !11
  %16 = load ptr, ptr %5, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.MemoryManager, ptr %16, i32 0, i32 2
  store ptr null, ptr %17, align 8, !tbaa !12
  br label %28

18:                                               ; preds = %4
  %19 = load ptr, ptr %6, align 8, !tbaa !5
  %20 = load ptr, ptr %5, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.MemoryManager, ptr %20, i32 0, i32 0
  store ptr %19, ptr %21, align 8, !tbaa !9
  %22 = load ptr, ptr %7, align 8, !tbaa !5
  %23 = load ptr, ptr %5, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.MemoryManager, ptr %23, i32 0, i32 1
  store ptr %22, ptr %24, align 8, !tbaa !11
  %25 = load ptr, ptr %8, align 8, !tbaa !5
  %26 = load ptr, ptr %5, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.MemoryManager, ptr %26, i32 0, i32 2
  store ptr %25, ptr %27, align 8, !tbaa !12
  br label %28

28:                                               ; preds = %18, %11
  ret void
}

; Function Attrs: nounwind uwtable
declare hidden ptr @DefaultAllocFunc(ptr noundef, i64 noundef) #0

; Function Attrs: nounwind uwtable
declare hidden void @DefaultFreeFunc(ptr noundef, ptr noundef) #0

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" }

!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 0}
!10 = !{!"MemoryManager", !6, i64 0, !6, i64 8, !6, i64 16}
!11 = !{!10, !6, i64 8}
!12 = !{!10, !6, i64 16}


; 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 nofree norecurse nosync nounwind willreturn memory(argmem: write) uwtable
define hidden void @BrotliInitMemoryManager(ptr nocapture noundef writeonly %0, ptr noundef %1, ptr noundef %2, ptr noundef %3) local_unnamed_addr #0 {
  %.not = icmp eq ptr %1, null
  %.sink11 = select i1 %.not, ptr @DefaultAllocFunc, ptr %1
  %.sink10 = select i1 %.not, ptr @DefaultFreeFunc, ptr %2
  %.sink = select i1 %.not, ptr null, ptr %3
  store ptr %.sink11, ptr %0, align 8
  %5 = getelementptr inbounds i8, ptr %0, i64 8
  store ptr %.sink10, ptr %5, align 8
  %6 = getelementptr inbounds i8, ptr %0, i64 16
  store ptr %.sink, ptr %6, align 8
  ret void
}

; Function Attrs: nounwind uwtable
declare hidden ptr @DefaultAllocFunc(ptr noundef, i64 noundef) #1

; Function Attrs: nounwind uwtable
declare hidden void @DefaultFreeFunc(ptr noundef, ptr noundef) #1

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write) 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 = { 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" }

!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,InstCombinePass,JumpThreadingPass,MergedLoadStoreMotionPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass