; LLVM IR from gem5/gem5 :: ext/systemc/src/sysc/datatypes/int/sc_nbutils.ll (ZN5sc_dt11vec_sub_on2EiPjiPKj)

; 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"

; 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: mustprogress uwtable
define dso_local void @_ZN5sc_dt11vec_sub_on2EiPjiPKj(i32 noundef %0, ptr noundef %1, i32 noundef %2, ptr noundef %3) #1 {
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  store i32 %0, ptr %5, align 4, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !9
  store i32 %2, ptr %7, align 4, !tbaa !5
  store ptr %3, ptr %8, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  %12 = load ptr, ptr %6, align 8, !tbaa !9
  store ptr %12, ptr %9, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #3
  %13 = load ptr, ptr %9, align 8, !tbaa !9
  %14 = call noundef i32 @_ZN5sc_dt6sc_minIiEEKT_RS2_S3_(ptr noundef nonnull align 4 dereferenceable(4) %5, ptr noundef nonnull align 4 dereferenceable(4) %7)
  %15 = sext i32 %14 to i64
  %16 = getelementptr inbounds i32, ptr %13, i64 %15
  store ptr %16, ptr %10, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #3
  store i32 0, ptr %11, align 4, !tbaa !5
  br label %17

17:                                               ; preds = %21, %4
  %18 = load ptr, ptr %9, align 8, !tbaa !9
  %19 = load ptr, ptr %10, align 8, !tbaa !9
  %20 = icmp ult ptr %18, %19
  br i1 %20, label %21, label %44

21:                                               ; preds = %17
  %22 = load ptr, ptr %8, align 8, !tbaa !9
  %23 = getelementptr inbounds i32, ptr %22, i32 1
  store ptr %23, ptr %8, align 8, !tbaa !9
  %24 = load i32, ptr %22, align 4, !tbaa !5
  %25 = zext i32 %24 to i64
  %26 = add i64 %25, 1073741824
  %27 = load ptr, ptr %9, align 8, !tbaa !9
  %28 = load i32, ptr %27, align 4, !tbaa !5
  %29 = zext i32 %28 to i64
  %30 = sub i64 %26, %29
  %31 = load i32, ptr %11, align 4, !tbaa !5
  %32 = zext i32 %31 to i64
  %33 = sub i64 %30, %32
  %34 = trunc i64 %33 to i32
  store i32 %34, ptr %11, align 4, !tbaa !5
  %35 = load i32, ptr %11, align 4, !tbaa !5
  %36 = zext i32 %35 to i64
  %37 = and i64 %36, 1073741823
  %38 = trunc i64 %37 to i32
  %39 = load ptr, ptr %9, align 8, !tbaa !9
  %40 = getelementptr inbounds i32, ptr %39, i32 1
  store ptr %40, ptr %9, align 8, !tbaa !9
  store i32 %38, ptr %39, align 4, !tbaa !5
  %41 = load i32, ptr %11, align 4, !tbaa !5
  %42 = lshr i32 %41, 30
  %43 = sub i32 1, %42
  store i32 %43, ptr %11, align 4, !tbaa !5
  br label %17, !llvm.loop !11

44:                                               ; preds = %17
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  ret void
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZN5sc_dt6sc_minIiEEKT_RS2_S3_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress 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 = { inlinehint mustprogress 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"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"

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN5sc_dt11vec_sub_on2EiPjiPKj(i32 noundef %0, ptr noundef %1, i32 noundef %2, ptr nocapture noundef readonly %3) local_unnamed_addr #0 {
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  store i32 %0, ptr %5, align 4, !tbaa !5
  store i32 %2, ptr %6, align 4, !tbaa !5
  %7 = call noundef i32 @_ZN5sc_dt6sc_minIiEEKT_RS2_S3_(ptr noundef nonnull align 4 dereferenceable(4) %5, ptr noundef nonnull align 4 dereferenceable(4) %6)
  %8 = sext i32 %7 to i64
  %9 = getelementptr inbounds i32, ptr %1, i64 %8
  %10 = icmp sgt i32 %7, 0
  br i1 %10, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %4, %.lr.ph
  %.014.neg = phi i32 [ %.neg15, %.lr.ph ], [ 0, %4 ]
  %.0913 = phi ptr [ %11, %.lr.ph ], [ %3, %4 ]
  %.01012 = phi ptr [ %17, %.lr.ph ], [ %1, %4 ]
  %11 = getelementptr inbounds i8, ptr %.0913, i64 4
  %12 = load i32, ptr %.0913, align 4, !tbaa !5
  %13 = load i32, ptr %.01012, align 4, !tbaa !5
  %.neg11 = add nsw i32 %.014.neg, 1073741824
  %14 = add i32 %.neg11, %12
  %15 = sub i32 %14, %13
  %16 = and i32 %15, 1073741823
  %17 = getelementptr inbounds i8, ptr %.01012, i64 4
  store i32 %16, ptr %.01012, align 4, !tbaa !5
  %18 = lshr i32 %15, 30
  %.neg15 = add nsw i32 %18, -1
  %19 = icmp ult ptr %17, %9
  br i1 %19, label %.lr.ph, label %._crit_edge, !llvm.loop !9

._crit_edge:                                      ; preds = %.lr.ph, %4
  ret void
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZN5sc_dt6sc_minIiEEKT_RS2_S3_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #1

attributes #0 = { mustprogress 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 = { inlinehint mustprogress 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, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass