; LLVM IR from ramsdell/lineqpp :: lua (lundump)

; 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"

@.str = external hidden unnamed_addr constant [5 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

; 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 hidden void @luaU_header(ptr noundef %0) #1 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  store i32 1, ptr %3, align 4, !tbaa !9
  %4 = load ptr, ptr %2, align 8, !tbaa !5
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 %4, ptr align 1 @.str, i64 4, i1 false)
  %5 = load ptr, ptr %2, align 8, !tbaa !5
  %6 = getelementptr inbounds i8, ptr %5, i64 4
  store ptr %6, ptr %2, align 8, !tbaa !5
  %7 = load ptr, ptr %2, align 8, !tbaa !5
  %8 = getelementptr inbounds i8, ptr %7, i32 1
  store ptr %8, ptr %2, align 8, !tbaa !5
  store i8 81, ptr %7, align 1, !tbaa !11
  %9 = load ptr, ptr %2, align 8, !tbaa !5
  %10 = getelementptr inbounds i8, ptr %9, i32 1
  store ptr %10, ptr %2, align 8, !tbaa !5
  store i8 0, ptr %9, align 1, !tbaa !11
  %11 = load i8, ptr %3, align 4, !tbaa !11
  %12 = load ptr, ptr %2, align 8, !tbaa !5
  %13 = getelementptr inbounds i8, ptr %12, i32 1
  store ptr %13, ptr %2, align 8, !tbaa !5
  store i8 %11, ptr %12, align 1, !tbaa !11
  %14 = load ptr, ptr %2, align 8, !tbaa !5
  %15 = getelementptr inbounds i8, ptr %14, i32 1
  store ptr %15, ptr %2, align 8, !tbaa !5
  store i8 4, ptr %14, align 1, !tbaa !11
  %16 = load ptr, ptr %2, align 8, !tbaa !5
  %17 = getelementptr inbounds i8, ptr %16, i32 1
  store ptr %17, ptr %2, align 8, !tbaa !5
  store i8 8, ptr %16, align 1, !tbaa !11
  %18 = load ptr, ptr %2, align 8, !tbaa !5
  %19 = getelementptr inbounds i8, ptr %18, i32 1
  store ptr %19, ptr %2, align 8, !tbaa !5
  store i8 4, ptr %18, align 1, !tbaa !11
  %20 = load ptr, ptr %2, align 8, !tbaa !5
  %21 = getelementptr inbounds i8, ptr %20, i32 1
  store ptr %21, ptr %2, align 8, !tbaa !5
  store i8 8, ptr %20, align 1, !tbaa !11
  %22 = load ptr, ptr %2, align 8, !tbaa !5
  %23 = getelementptr inbounds i8, ptr %22, i32 1
  store ptr %23, ptr %2, align 8, !tbaa !5
  store i8 0, ptr %22, align 1, !tbaa !11
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  ret void
}

; 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) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!7, !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"

@.str = external hidden unnamed_addr constant [5 x i8], align 1

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write) uwtable
define hidden void @luaU_header(ptr nocapture noundef writeonly %0) local_unnamed_addr #0 {
  %2 = load i32, ptr @.str, align 1
  store i32 %2, ptr %0, align 1
  %3 = getelementptr inbounds i8, ptr %0, i64 4
  store <8 x i8> <i8 81, i8 0, i8 1, i8 4, i8 8, i8 4, i8 8, i8 0>, ptr %3, align 1, !tbaa !5
  ret void
}

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" }

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


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