; LLVM IR from gem5/gem5 :: ext/systemc/src/sysc/utils/sc_list.ll (ZN7sc_core13sc_plist_base6mapcarEPFvPvS1_ES1_)

; 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_core::sc_plist_base" = type { ptr, ptr }
%"class.sc_core::sc_plist_elem" = type { ptr, ptr, 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 uwtable
define dso_local void @_ZN7sc_core13sc_plist_base6mapcarEPFvPvS1_ES1_(ptr noundef nonnull align 8 dereferenceable(16) %0, ptr noundef %1, ptr noundef %2) #1 align 2 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !5
  %8 = load ptr, ptr %4, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #2
  %9 = getelementptr inbounds %"class.sc_core::sc_plist_base", ptr %8, i32 0, i32 0
  %10 = load ptr, ptr %9, align 8, !tbaa !9
  store ptr %10, ptr %7, align 8, !tbaa !5
  br label %11

11:                                               ; preds = %21, %3
  %12 = load ptr, ptr %7, align 8, !tbaa !5
  %13 = icmp ne ptr %12, null
  br i1 %13, label %15, label %14

14:                                               ; preds = %11
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #2
  br label %25

15:                                               ; preds = %11
  %16 = load ptr, ptr %5, align 8, !tbaa !5
  %17 = load ptr, ptr %7, align 8, !tbaa !5
  %18 = getelementptr inbounds %"class.sc_core::sc_plist_elem", ptr %17, i32 0, i32 0
  %19 = load ptr, ptr %18, align 8, !tbaa !11
  %20 = load ptr, ptr %6, align 8, !tbaa !5
  call void %16(ptr noundef %19, ptr noundef %20)
  br label %21

21:                                               ; preds = %15
  %22 = load ptr, ptr %7, align 8, !tbaa !5
  %23 = getelementptr inbounds %"class.sc_core::sc_plist_elem", ptr %22, i32 0, i32 2
  %24 = load ptr, ptr %23, align 8, !tbaa !13
  store ptr %24, ptr %7, align 8, !tbaa !5
  br label %11, !llvm.loop !14

25:                                               ; preds = %14
  ret void
}

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 = { 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, !6, i64 0}
!10 = !{!"_ZTSN7sc_core13sc_plist_baseE", !6, i64 0, !6, i64 8}
!11 = !{!12, !6, i64 0}
!12 = !{!"_ZTSN7sc_core13sc_plist_elemE", !6, i64 0, !6, i64 8, !6, i64 16}
!13 = !{!12, !6, i64 16}
!14 = distinct !{!14, !15}
!15 = !{!"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 uwtable
define dso_local void @_ZN7sc_core13sc_plist_base6mapcarEPFvPvS1_ES1_(ptr nocapture noundef nonnull readonly align 8 dereferenceable(16) %0, ptr nocapture noundef readonly %1, ptr noundef %2) local_unnamed_addr #0 align 2 {
  %.06 = load ptr, ptr %0, align 8, !tbaa !5
  %.not7 = icmp eq ptr %.06, null
  br i1 %.not7, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph, %3
  ret void

.lr.ph:                                           ; preds = %3, %.lr.ph
  %.08 = phi ptr [ %.0, %.lr.ph ], [ %.06, %3 ]
  %4 = load ptr, ptr %.08, align 8, !tbaa !9
  tail call void %1(ptr noundef %4, ptr noundef %2)
  %5 = getelementptr inbounds i8, ptr %.08, i64 16
  %.0 = load ptr, ptr %5, align 8, !tbaa !5
  %.not = icmp eq ptr %.0, null
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !11
}

attributes #0 = { 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" }

!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, !6, i64 0}
!10 = !{!"_ZTSN7sc_core13sc_plist_elemE", !6, i64 0, !6, i64 8, !6, i64 16}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


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