; LLVM IR from gem5/gem5 :: src/systemc/dt/int/sc_uint_base.ll (ZNK5sc_dt16sc_uint_subref_r15concat_get_ctrlEPji)

; 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"

%"class.sc_dt::sc_uint_subref_r" = type <{ %"class.sc_dt::sc_value_base", i32, [4 x i8], ptr, i32, [4 x i8] }>
%"class.sc_dt::sc_value_base" = type { ptr }

; 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 nounwind uwtable
define dso_local noundef zeroext i1 @_ZNK5sc_dt16sc_uint_subref_r15concat_get_ctrlEPji(ptr noundef nonnull align 8 dereferenceable(28) %0, ptr noundef %1, i32 noundef %2) unnamed_addr #1 align 2 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i64, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store i32 %2, ptr %6, align 4, !tbaa !9
  %11 = load ptr, ptr %4, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #2
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #2
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #2
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #2
  %12 = load i32, ptr %6, align 4, !tbaa !9
  %13 = sdiv i32 %12, 30
  store i32 %13, ptr %7, align 4, !tbaa !9
  %14 = load i32, ptr %6, align 4, !tbaa !9
  %15 = srem i32 %14, 30
  store i32 %15, ptr %9, align 4, !tbaa !9
  %16 = load i32, ptr %6, align 4, !tbaa !9
  %17 = getelementptr inbounds %"class.sc_dt::sc_uint_subref_r", ptr %11, i32 0, i32 1
  %18 = load i32, ptr %17, align 8, !tbaa !11
  %19 = getelementptr inbounds %"class.sc_dt::sc_uint_subref_r", ptr %11, i32 0, i32 4
  %20 = load i32, ptr %19, align 8, !tbaa !14
  %21 = sub nsw i32 %18, %20
  %22 = add nsw i32 %16, %21
  %23 = sdiv i32 %22, 30
  store i32 %23, ptr %8, align 4, !tbaa !9
  %24 = load i32, ptr %9, align 4, !tbaa !9
  %25 = zext i32 %24 to i64
  %26 = shl i64 -1, %25
  %27 = xor i64 %26, -1
  store i64 %27, ptr %10, align 8, !tbaa !15
  %28 = load ptr, ptr %5, align 8, !tbaa !5
  %29 = load i32, ptr %7, align 4, !tbaa !9
  %30 = sext i32 %29 to i64
  %31 = getelementptr inbounds i32, ptr %28, i64 %30
  %32 = load i32, ptr %31, align 4, !tbaa !9
  %33 = zext i32 %32 to i64
  %34 = load i64, ptr %10, align 8, !tbaa !15
  %35 = and i64 %33, %34
  %36 = trunc i64 %35 to i32
  %37 = load ptr, ptr %5, align 8, !tbaa !5
  %38 = load i32, ptr %7, align 4, !tbaa !9
  %39 = sext i32 %38 to i64
  %40 = getelementptr inbounds i32, ptr %37, i64 %39
  store i32 %36, ptr %40, align 4, !tbaa !9
  %41 = load i32, ptr %7, align 4, !tbaa !9
  %42 = add nsw i32 %41, 1
  store i32 %42, ptr %7, align 4, !tbaa !9
  br label %43

43:                                               ; preds = %52, %3
  %44 = load i32, ptr %7, align 4, !tbaa !9
  %45 = load i32, ptr %8, align 4, !tbaa !9
  %46 = icmp sle i32 %44, %45
  br i1 %46, label %47, label %55

47:                                               ; preds = %43
  %48 = load ptr, ptr %5, align 8, !tbaa !5
  %49 = load i32, ptr %7, align 4, !tbaa !9
  %50 = sext i32 %49 to i64
  %51 = getelementptr inbounds i32, ptr %48, i64 %50
  store i32 0, ptr %51, align 4, !tbaa !9
  br label %52

52:                                               ; preds = %47
  %53 = load i32, ptr %7, align 4, !tbaa !9
  %54 = add nsw i32 %53, 1
  store i32 %54, ptr %7, align 4, !tbaa !9
  br label %43, !llvm.loop !17

55:                                               ; preds = %43
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #2
  ret i1 false
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { 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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 8}
!12 = !{!"_ZTSN5sc_dt16sc_uint_subref_rE", !13, i64 0, !10, i64 8, !6, i64 16, !10, i64 24}
!13 = !{!"_ZTSN5sc_dt13sc_value_baseE"}
!14 = !{!12, !10, i64 24}
!15 = !{!16, !16, i64 0}
!16 = !{!"long long", !7, i64 0}
!17 = distinct !{!17, !18}
!18 = !{!"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 nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
define dso_local noundef zeroext i1 @_ZNK5sc_dt16sc_uint_subref_r15concat_get_ctrlEPji(ptr nocapture noundef nonnull readonly align 8 dereferenceable(28) %0, ptr nocapture noundef %1, i32 noundef %2) unnamed_addr #0 align 2 {
  %4 = sdiv i32 %2, 30
  %5 = srem i32 %2, 30
  %6 = getelementptr inbounds i8, ptr %0, i64 8
  %7 = load i32, ptr %6, align 8, !tbaa !5
  %8 = getelementptr inbounds i8, ptr %0, i64 24
  %9 = load i32, ptr %8, align 8, !tbaa !12
  %10 = add i32 %7, %2
  %11 = sub i32 %10, %9
  %12 = sdiv i32 %11, 30
  %13 = zext nneg i32 %5 to i64
  %14 = shl nsw i64 -1, %13
  %15 = sext i32 %4 to i64
  %16 = getelementptr inbounds i32, ptr %1, i64 %15
  %17 = load i32, ptr %16, align 4, !tbaa !13
  %18 = trunc i64 %14 to i32
  %19 = xor i32 %18, -1
  %20 = and i32 %17, %19
  store i32 %20, ptr %16, align 4, !tbaa !13
  %.not.not15 = icmp slt i32 %4, %12
  br i1 %.not.not15, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %3
  %21 = shl nsw i64 %15, 2
  %22 = getelementptr i8, ptr %1, i64 %21
  %scevgep = getelementptr i8, ptr %22, i64 4
  %23 = xor i32 %4, -1
  %24 = add nsw i32 %12, %23
  %25 = zext i32 %24 to i64
  %26 = shl nuw nsw i64 %25, 2
  %27 = add nuw nsw i64 %26, 4
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 4 dereferenceable(1) %scevgep, i8 0, i64 %27, i1 false), !tbaa !13
  br label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph.preheader, %3
  ret i1 false
}

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #1

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) 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: write) }

!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, !8, i64 8}
!6 = !{!"_ZTSN5sc_dt16sc_uint_subref_rE", !7, i64 0, !8, i64 8, !11, i64 16, !8, i64 24}
!7 = !{!"_ZTSN5sc_dt13sc_value_baseE"}
!8 = !{!"int", !9, i64 0}
!9 = !{!"omnipotent char", !10, i64 0}
!10 = !{!"Simple C++ TBAA"}
!11 = !{!"any pointer", !9, i64 0}
!12 = !{!6, !8, i64 24}
!13 = !{!8, !8, i64 0}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,LoopIdiomRecognizePass,LoopRotatePass,LoopSimplifyPass,PostOrderFunctionAttrsPass,ReassociatePass,SCCPPass,SROAPass,SimplifyCFGPass,TailCallElimPass