; LLVM IR from ryanlayer/giggle :: src (wah)

; 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"

@WAH_SIZE = external dso_local global i32, align 4

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #2

; 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 ptr @wah_copy(ptr noundef %0) #3 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  %6 = load ptr, ptr %3, align 8, !tbaa !5
  %7 = icmp eq ptr %6, null
  br i1 %7, label %8, label %9

8:                                                ; preds = %1
  store ptr null, ptr %2, align 8
  br label %34

9:                                                ; preds = %1
  %10 = load ptr, ptr %3, align 8, !tbaa !5
  %11 = getelementptr inbounds i32, ptr %10, i64 0
  %12 = load i32, ptr %11, align 4, !tbaa !9
  %13 = icmp eq i32 %12, 0
  br i1 %13, label %14, label %15

14:                                               ; preds = %9
  store ptr null, ptr %2, align 8
  br label %34

15:                                               ; preds = %9
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #4
  %16 = load ptr, ptr %3, align 8, !tbaa !5
  %17 = getelementptr inbounds i32, ptr %16, i64 0
  %18 = load i32, ptr %17, align 4, !tbaa !9
  %19 = load i32, ptr @WAH_SIZE, align 4, !tbaa !9
  %20 = udiv i32 %19, 8
  %21 = mul i32 %18, %20
  %22 = zext i32 %21 to i64
  %23 = mul i64 %22, 1
  %24 = add i64 4, %23
  %25 = trunc i64 %24 to i32
  store i32 %25, ptr %4, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #4
  %26 = load i32, ptr %4, align 4, !tbaa !9
  %27 = zext i32 %26 to i64
  %28 = call noalias ptr @malloc(i64 noundef %27) #5
  store ptr %28, ptr %5, align 8, !tbaa !5
  %29 = load ptr, ptr %5, align 8, !tbaa !5
  %30 = load ptr, ptr %3, align 8, !tbaa !5
  %31 = load i32, ptr %4, align 4, !tbaa !9
  %32 = zext i32 %31 to i64
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 %29, ptr align 1 %30, i64 %32, i1 false)
  %33 = load ptr, ptr %5, align 8, !tbaa !5
  store ptr %33, ptr %2, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  br label %34

34:                                               ; preds = %15, %14, %8
  %35 = load ptr, ptr %2, align 8
  ret ptr %35
}

attributes #0 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nounwind allocsize(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 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 }
attributes #5 = { nounwind allocsize(0) }

!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, !10, i64 0}
!10 = !{!"int", !7, 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"

@WAH_SIZE = external dso_local local_unnamed_addr global i32, align 4

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #0

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @malloc(i64 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nofree nounwind willreturn uwtable
define dso_local noalias noundef ptr @wah_copy(ptr noundef readonly %0) local_unnamed_addr #2 {
  %2 = icmp eq ptr %0, null
  br i1 %2, label %13, label %3

3:                                                ; preds = %1
  %4 = load i32, ptr %0, align 4, !tbaa !5
  %5 = icmp eq i32 %4, 0
  br i1 %5, label %13, label %6

6:                                                ; preds = %3
  %7 = load i32, ptr @WAH_SIZE, align 4, !tbaa !5
  %8 = lshr i32 %7, 3
  %9 = mul i32 %8, %4
  %10 = add i32 %9, 4
  %11 = zext i32 %10 to i64
  %12 = tail call noalias ptr @malloc(i64 noundef %11) #3
  tail call void @llvm.memcpy.p0.p0.i64(ptr align 1 %12, ptr nonnull align 1 %0, i64 %11, i1 false)
  br label %13

13:                                               ; preds = %3, %1, %6
  %.0 = phi ptr [ %12, %6 ], [ null, %1 ], [ null, %3 ]
  ret ptr %.0
}

attributes #0 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(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 #2 = { mustprogress nofree nounwind willreturn 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 allocsize(0) }

!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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


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