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

; 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.metadata_row = type { i8, ptr }
%struct.metadata_item = type { ptr, %union.metadata_data }
%union.metadata_data = type { i64 }

@.str.78 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.79 = external hidden unnamed_addr constant [2 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
declare dso_local void @print_metadata_data(ptr noundef, i64) #1

declare i32 @printf(ptr noundef, ...) #2

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

5:                                                ; preds = %28, %1
  %6 = load i32, ptr %3, align 4, !tbaa !9
  %7 = load ptr, ptr %2, align 8, !tbaa !5
  %8 = getelementptr inbounds %struct.metadata_row, ptr %7, i32 0, i32 0
  %9 = load i8, ptr %8, align 8, !tbaa !11
  %10 = zext i8 %9 to i32
  %11 = icmp slt i32 %6, %10
  br i1 %11, label %12, label %31

12:                                               ; preds = %5
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  %13 = load ptr, ptr %2, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.metadata_row, ptr %13, i32 0, i32 1
  %15 = load ptr, ptr %14, align 8, !tbaa !13
  %16 = load i32, ptr %3, align 4, !tbaa !9
  %17 = sext i32 %16 to i64
  %18 = getelementptr inbounds ptr, ptr %15, i64 %17
  %19 = load ptr, ptr %18, align 8, !tbaa !5
  store ptr %19, ptr %4, align 8, !tbaa !5
  %20 = load ptr, ptr %4, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.metadata_item, ptr %20, i32 0, i32 0
  %22 = load ptr, ptr %21, align 8, !tbaa !14
  %23 = load ptr, ptr %4, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.metadata_item, ptr %23, i32 0, i32 1
  %25 = getelementptr inbounds %union.metadata_data, ptr %24, i32 0, i32 0
  %26 = load i64, ptr %25, align 8
  call void @print_metadata_data(ptr noundef %22, i64 %26)
  %27 = call i32 (ptr, ...) @printf(ptr noundef @.str.78)
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  br label %28

28:                                               ; preds = %12
  %29 = load i32, ptr %3, align 4, !tbaa !9
  %30 = add nsw i32 %29, 1
  store i32 %30, ptr %3, align 4, !tbaa !9
  br label %5, !llvm.loop !16

31:                                               ; preds = %5
  %32 = call i32 (ptr, ...) @printf(ptr noundef @.str.79)
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  ret void
}

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 = { "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 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !7, i64 0}
!12 = !{!"metadata_row", !7, i64 0, !6, i64 8}
!13 = !{!12, !6, i64 8}
!14 = !{!15, !6, i64 0}
!15 = !{!"metadata_item", !6, i64 0, !7, i64 8}
!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"

@.str.78 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.79 = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local void @print_metadata_data(ptr noundef, i64) local_unnamed_addr #0

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local void @print_metadata_row(ptr nocapture noundef readonly %0) local_unnamed_addr #0 {
  %2 = load i8, ptr %0, align 8, !tbaa !5
  %.not = icmp eq i8 %2, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %1
  %3 = getelementptr inbounds i8, ptr %0, i64 8
  br label %4

4:                                                ; preds = %.lr.ph, %4
  %indvars.iv = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next, %4 ]
  %5 = load ptr, ptr %3, align 8, !tbaa !10
  %6 = getelementptr inbounds ptr, ptr %5, i64 %indvars.iv
  %7 = load ptr, ptr %6, align 8, !tbaa !11
  %8 = load ptr, ptr %7, align 8, !tbaa !12
  %9 = getelementptr inbounds i8, ptr %7, i64 8
  %10 = load i64, ptr %9, align 8
  tail call void @print_metadata_data(ptr noundef %8, i64 %10)
  %11 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.78)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %12 = load i8, ptr %0, align 8, !tbaa !5
  %13 = zext i8 %12 to i64
  %14 = icmp ult i64 %indvars.iv.next, %13
  br i1 %14, label %4, label %._crit_edge, !llvm.loop !14

._crit_edge:                                      ; preds = %4, %1
  %15 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.79)
  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" }
attributes #1 = { nofree 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" }

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


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