; LLVM IR from LeoVen/C-Macro-Collections :: examples (example)

; 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.int_list = type { ptr, i64, i64, i32, ptr, ptr }

; Function Attrs: nounwind uwtable
declare dso_local zeroext i1 @intl_full(ptr noundef) #0

; Function Attrs: nounwind uwtable
declare dso_local zeroext i1 @intl_resize(ptr noundef, i64 noundef) #0

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memmove.p0.p0.i64(ptr nocapture writeonly, ptr nocapture readonly, i64, i1 immarg) #1

; Function Attrs: nounwind uwtable
define dso_local zeroext i1 @intl_push_at(ptr noundef %0, i32 noundef %1, i64 noundef %2) #0 {
  %4 = alloca i1, align 1
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i64, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !9
  store i64 %2, ptr %7, align 8, !tbaa !11
  %8 = load i64, ptr %7, align 8, !tbaa !11
  %9 = load ptr, ptr %5, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.int_list, ptr %9, i32 0, i32 2
  %11 = load i64, ptr %10, align 8, !tbaa !13
  %12 = icmp ugt i64 %8, %11
  br i1 %12, label %13, label %16

13:                                               ; preds = %3
  %14 = load ptr, ptr %5, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.int_list, ptr %14, i32 0, i32 3
  store i32 5, ptr %15, align 8, !tbaa !15
  store i1 false, ptr %4, align 1
  br label %58

16:                                               ; preds = %3
  %17 = load ptr, ptr %5, align 8, !tbaa !5
  %18 = call zeroext i1 @intl_full(ptr noundef %17)
  br i1 %18, label %19, label %28

19:                                               ; preds = %16
  %20 = load ptr, ptr %5, align 8, !tbaa !5
  %21 = load ptr, ptr %5, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.int_list, ptr %21, i32 0, i32 2
  %23 = load i64, ptr %22, align 8, !tbaa !13
  %24 = mul i64 %23, 2
  %25 = call zeroext i1 @intl_resize(ptr noundef %20, i64 noundef %24)
  br i1 %25, label %27, label %26

26:                                               ; preds = %19
  store i1 false, ptr %4, align 1
  br label %58

27:                                               ; preds = %19
  br label %28

28:                                               ; preds = %27, %16
  %29 = load ptr, ptr %5, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.int_list, ptr %29, i32 0, i32 0
  %31 = load ptr, ptr %30, align 8, !tbaa !16
  %32 = load i64, ptr %7, align 8, !tbaa !11
  %33 = getelementptr inbounds i32, ptr %31, i64 %32
  %34 = getelementptr inbounds i32, ptr %33, i64 1
  %35 = load ptr, ptr %5, align 8, !tbaa !5
  %36 = getelementptr inbounds %struct.int_list, ptr %35, i32 0, i32 0
  %37 = load ptr, ptr %36, align 8, !tbaa !16
  %38 = load i64, ptr %7, align 8, !tbaa !11
  %39 = getelementptr inbounds i32, ptr %37, i64 %38
  %40 = load ptr, ptr %5, align 8, !tbaa !5
  %41 = getelementptr inbounds %struct.int_list, ptr %40, i32 0, i32 2
  %42 = load i64, ptr %41, align 8, !tbaa !13
  %43 = load i64, ptr %7, align 8, !tbaa !11
  %44 = sub i64 %42, %43
  %45 = mul i64 %44, 4
  call void @llvm.memmove.p0.p0.i64(ptr align 4 %34, ptr align 4 %39, i64 %45, i1 false)
  %46 = load i32, ptr %6, align 4, !tbaa !9
  %47 = load ptr, ptr %5, align 8, !tbaa !5
  %48 = getelementptr inbounds %struct.int_list, ptr %47, i32 0, i32 0
  %49 = load ptr, ptr %48, align 8, !tbaa !16
  %50 = load i64, ptr %7, align 8, !tbaa !11
  %51 = getelementptr inbounds i32, ptr %49, i64 %50
  store i32 %46, ptr %51, align 4, !tbaa !9
  %52 = load ptr, ptr %5, align 8, !tbaa !5
  %53 = getelementptr inbounds %struct.int_list, ptr %52, i32 0, i32 2
  %54 = load i64, ptr %53, align 8, !tbaa !13
  %55 = add i64 %54, 1
  store i64 %55, ptr %53, align 8, !tbaa !13
  %56 = load ptr, ptr %5, align 8, !tbaa !5
  %57 = getelementptr inbounds %struct.int_list, ptr %56, i32 0, i32 3
  store i32 0, ptr %57, align 8, !tbaa !15
  store i1 true, ptr %4, align 1
  br label %58

58:                                               ; preds = %28, %26, %13
  %59 = load i1, ptr %4, align 1
  ret i1 %59
}

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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }

!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, !12, i64 0}
!12 = !{!"long", !7, i64 0}
!13 = !{!14, !12, i64 16}
!14 = !{!"int_list", !6, i64 0, !12, i64 8, !12, i64 16, !10, i64 24, !6, i64 32, !6, i64 40}
!15 = !{!14, !10, i64 24}
!16 = !{!14, !6, 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"

; Function Attrs: nounwind uwtable
declare dso_local zeroext i1 @intl_full(ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local zeroext i1 @intl_resize(ptr noundef, i64 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memmove.p0.p0.i64(ptr nocapture writeonly, ptr nocapture readonly, i64, i1 immarg) #1

; Function Attrs: nounwind uwtable
define dso_local noundef zeroext i1 @intl_push_at(ptr noundef %0, i32 noundef %1, i64 noundef %2) local_unnamed_addr #0 {
  %4 = getelementptr inbounds i8, ptr %0, i64 16
  %5 = load i64, ptr %4, align 8, !tbaa !5
  %6 = icmp uge i64 %5, %2
  br i1 %6, label %7, label %.sink.split

7:                                                ; preds = %3
  %8 = tail call zeroext i1 @intl_full(ptr noundef nonnull %0)
  br i1 %8, label %9, label %13

9:                                                ; preds = %7
  %10 = load i64, ptr %4, align 8, !tbaa !5
  %11 = shl i64 %10, 1
  %12 = tail call zeroext i1 @intl_resize(ptr noundef nonnull %0, i64 noundef %11)
  br i1 %12, label %13, label %25

13:                                               ; preds = %9, %7
  %14 = load ptr, ptr %0, align 8, !tbaa !12
  %15 = getelementptr inbounds i32, ptr %14, i64 %2
  %16 = getelementptr inbounds i8, ptr %15, i64 4
  %17 = load i64, ptr %4, align 8, !tbaa !5
  %18 = sub i64 %17, %2
  %19 = shl i64 %18, 2
  tail call void @llvm.memmove.p0.p0.i64(ptr nonnull align 4 %16, ptr align 4 %15, i64 %19, i1 false)
  %20 = load ptr, ptr %0, align 8, !tbaa !12
  %21 = getelementptr inbounds i32, ptr %20, i64 %2
  store i32 %1, ptr %21, align 4, !tbaa !13
  %22 = load i64, ptr %4, align 8, !tbaa !5
  %23 = add i64 %22, 1
  store i64 %23, ptr %4, align 8, !tbaa !5
  br label %.sink.split

.sink.split:                                      ; preds = %3, %13
  %.sink = phi i32 [ 0, %13 ], [ 5, %3 ]
  %24 = getelementptr inbounds i8, ptr %0, i64 24
  store i32 %.sink, ptr %24, align 8, !tbaa !14
  br label %25

25:                                               ; preds = %.sink.split, %9
  %.0 = phi i1 [ false, %9 ], [ %6, %.sink.split ]
  ret i1 %.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" }
attributes #1 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }

!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 16}
!6 = !{!"int_list", !7, i64 0, !10, i64 8, !10, i64 16, !11, i64 24, !7, i64 32, !7, i64 40}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"long", !8, i64 0}
!11 = !{!"int", !8, i64 0}
!12 = !{!6, !7, i64 0}
!13 = !{!11, !11, i64 0}
!14 = !{!6, !11, i64 24}


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