; LLVM IR from nickmqb/muon :: bootstrap/mu.ll_Tag (writeArgsTo__)

; 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.string__ = type { ptr, i32 }
%struct.tag_____Tag__ = type { ptr, ptr }
%struct.tag_____Array__Tag____ = type { ptr, i32 }

@mu_____string77 = external dso_local global %struct.string__, align 8

; 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: 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) #1

; Function Attrs: nounwind uwtable
declare dso_local void @StringBuilder__write__(ptr noundef, ptr, i32) #2

; Function Attrs: nounwind uwtable
declare dso_local void @Tag__writeTo__(ptr, ptr, ptr noundef) #2

; Function Attrs: nounwind uwtable
define dso_local void @Tag__writeArgsTo__(ptr noundef %0, ptr noundef %1) #2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i8, align 1
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca %struct.tag_____Tag__, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr %5) #3
  store i8 0, ptr %5, align 1, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %9 = load ptr, ptr %3, align 8, !tbaa !5
  store ptr %9, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  store i32 0, ptr %7, align 4, !tbaa !10
  br label %10

10:                                               ; preds = %30, %2
  %11 = load i32, ptr %7, align 4, !tbaa !10
  %12 = load ptr, ptr %6, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.tag_____Array__Tag____, ptr %12, i32 0, i32 1
  %14 = load i32, ptr %13, align 8, !tbaa !12
  %15 = icmp slt i32 %11, %14
  br i1 %15, label %16, label %38

16:                                               ; preds = %10
  call void @llvm.lifetime.start.p0(i64 16, ptr %8) #3
  %17 = load ptr, ptr %6, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct.tag_____Array__Tag____, ptr %17, i32 0, i32 0
  %19 = load ptr, ptr %18, align 8, !tbaa !14
  %20 = load i32, ptr %7, align 4, !tbaa !10
  %21 = sext i32 %20 to i64
  %22 = getelementptr inbounds %struct.tag_____Tag__, ptr %19, i64 %21
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %8, ptr align 8 %22, i64 16, i1 false), !tbaa.struct !15
  %23 = load i8, ptr %5, align 1, !tbaa !9
  %24 = icmp ne i8 %23, 0
  br i1 %24, label %25, label %29

25:                                               ; preds = %16
  %26 = load ptr, ptr %4, align 8, !tbaa !5
  %27 = load ptr, ptr @mu_____string77, align 8
  %28 = load i32, ptr getelementptr inbounds ({ ptr, i32 }, ptr @mu_____string77, i32 0, i32 1), align 8
  call void @StringBuilder__write__(ptr noundef %26, ptr %27, i32 %28)
  br label %30

29:                                               ; preds = %16
  store i8 1, ptr %5, align 1, !tbaa !9
  br label %30

30:                                               ; preds = %29, %25
  %31 = load ptr, ptr %4, align 8, !tbaa !5
  %32 = getelementptr inbounds { ptr, ptr }, ptr %8, i32 0, i32 0
  %33 = load ptr, ptr %32, align 8
  %34 = getelementptr inbounds { ptr, ptr }, ptr %8, i32 0, i32 1
  %35 = load ptr, ptr %34, align 8
  call void @Tag__writeTo__(ptr %33, ptr %35, ptr noundef %31)
  %36 = load i32, ptr %7, align 4, !tbaa !10
  %37 = add nsw i32 %36, 1
  store i32 %37, ptr %7, align 4, !tbaa !10
  call void @llvm.lifetime.end.p0(i64 16, ptr %8) #3
  br label %10, !llvm.loop !16

38:                                               ; preds = %10
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr %5) #3
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 = { 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 = !{!7, !7, i64 0}
!10 = !{!11, !11, i64 0}
!11 = !{!"int", !7, i64 0}
!12 = !{!13, !11, i64 8}
!13 = !{!"tag_____Array__Tag____", !6, i64 0, !11, i64 8}
!14 = !{!13, !6, i64 0}
!15 = !{i64 0, i64 8, !5, i64 8, i64 8, !5}
!16 = distinct !{!16, !17}
!17 = !{!"llvm.loop.mustprogress"}


; 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.string__ = type { ptr, i32 }
%struct.tag_____Tag__ = type { ptr, ptr }

@mu_____string77 = external dso_local local_unnamed_addr global %struct.string__, align 8

; Function Attrs: nounwind uwtable
declare dso_local void @StringBuilder__write__(ptr noundef, ptr, i32) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local void @Tag__writeTo__(ptr, ptr, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @Tag__writeArgsTo__(ptr nocapture noundef readonly %0, ptr noundef %1) local_unnamed_addr #0 {
  %3 = getelementptr inbounds i8, ptr %0, i64 8
  %4 = load i32, ptr %3, align 8, !tbaa !5
  %5 = icmp sgt i32 %4, 0
  br i1 %5, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %2
  %6 = load ptr, ptr %0, align 8, !tbaa !11
  %.sroa.4.0..sroa_idx.peel = getelementptr inbounds i8, ptr %6, i64 8
  %.sroa.4.0.copyload.peel = load ptr, ptr %.sroa.4.0..sroa_idx.peel, align 8, !tbaa !12
  %.sroa.0.0.copyload.peel = load ptr, ptr %6, align 8, !tbaa !12
  tail call void @Tag__writeTo__(ptr %.sroa.0.0.copyload.peel, ptr %.sroa.4.0.copyload.peel, ptr noundef %1)
  %7 = load i32, ptr %3, align 8, !tbaa !5
  %8 = icmp sgt i32 %7, 1
  br i1 %8, label %.lr.ph.peel.next, label %._crit_edge

.lr.ph.peel.next:                                 ; preds = %.lr.ph.preheader, %.lr.ph.peel.next
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph.peel.next ], [ 1, %.lr.ph.preheader ]
  %9 = load ptr, ptr %0, align 8, !tbaa !11
  %10 = getelementptr inbounds %struct.tag_____Tag__, ptr %9, i64 %indvars.iv
  %.sroa.0.0.copyload = load ptr, ptr %10, align 8, !tbaa !12
  %.sroa.4.0..sroa_idx = getelementptr inbounds i8, ptr %10, i64 8
  %.sroa.4.0.copyload = load ptr, ptr %.sroa.4.0..sroa_idx, align 8, !tbaa !12
  %11 = load ptr, ptr @mu_____string77, align 8
  %12 = load i32, ptr getelementptr inbounds (i8, ptr @mu_____string77, i64 8), align 8
  tail call void @StringBuilder__write__(ptr noundef %1, ptr %11, i32 %12)
  tail call void @Tag__writeTo__(ptr %.sroa.0.0.copyload, ptr %.sroa.4.0.copyload, ptr noundef %1)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %13 = load i32, ptr %3, align 8, !tbaa !5
  %14 = sext i32 %13 to i64
  %15 = icmp slt i64 %indvars.iv.next, %14
  br i1 %15, label %.lr.ph.peel.next, label %._crit_edge, !llvm.loop !13

._crit_edge:                                      ; preds = %.lr.ph.peel.next, %.lr.ph.preheader, %2
  ret void
}

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, !10, i64 8}
!6 = !{!"tag_____Array__Tag____", !7, i64 0, !10, i64 8}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!6, !7, i64 0}
!12 = !{!7, !7, i64 0}
!13 = distinct !{!13, !14, !15}
!14 = !{!"llvm.loop.mustprogress"}
!15 = !{!"llvm.loop.peeled.count", i32 1}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopFullUnrollPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SCCPPass,SROAPass,SimplifyCFGPass,TailCallElimPass