; LLVM IR from gem5/gem5 :: ext/systemc/src/sysc/tracing (sc_wif_trace)

; 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::wif_unsigned_char_trace" = type <{ %"class.sc_core::wif_trace.base", [4 x i8], ptr, i8, i8, [6 x i8] }>
%"class.sc_core::wif_trace.base" = type <{ ptr, %"class.std::__cxx11::basic_string", %"class.std::__cxx11::basic_string", ptr, i32 }>
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.sc_core::wif_trace" = type <{ ptr, %"class.std::__cxx11::basic_string", %"class.std::__cxx11::basic_string", ptr, i32, [4 x i8] }>

@.str.10 = external hidden unnamed_addr constant [18 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: mustprogress nounwind uwtable
declare noundef ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5c_strEv(ptr noundef nonnull align 8 dereferenceable(32)) #1 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind
declare i32 @fprintf(ptr noundef, ptr noundef, ...) #2

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN7sc_core23wif_unsigned_char_trace5writeEP8_IO_FILE(ptr noundef nonnull align 8 dereferenceable(98) %0, ptr noundef %1) unnamed_addr #1 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca [1000 x i8], align 16
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %8 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 1000, ptr %5) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  %9 = getelementptr inbounds %"class.sc_core::wif_unsigned_char_trace", ptr %8, i32 0, i32 2
  %10 = load ptr, ptr %9, align 8, !tbaa !9
  %11 = load i8, ptr %10, align 1, !tbaa !16
  %12 = zext i8 %11 to i32
  %13 = getelementptr inbounds %"class.sc_core::wif_unsigned_char_trace", ptr %8, i32 0, i32 4
  %14 = load i8, ptr %13, align 1, !tbaa !17
  %15 = zext i8 %14 to i32
  %16 = and i32 %12, %15
  %17 = getelementptr inbounds %"class.sc_core::wif_unsigned_char_trace", ptr %8, i32 0, i32 2
  %18 = load ptr, ptr %17, align 8, !tbaa !9
  %19 = load i8, ptr %18, align 1, !tbaa !16
  %20 = zext i8 %19 to i32
  %21 = icmp ne i32 %16, %20
  br i1 %21, label %22, label %36

22:                                               ; preds = %2
  store i32 0, ptr %6, align 4, !tbaa !18
  br label %23

23:                                               ; preds = %32, %22
  %24 = load i32, ptr %6, align 4, !tbaa !18
  %25 = getelementptr inbounds %"class.sc_core::wif_trace", ptr %8, i32 0, i32 4
  %26 = load i32, ptr %25, align 8, !tbaa !19
  %27 = icmp slt i32 %24, %26
  br i1 %27, label %28, label %35

28:                                               ; preds = %23
  %29 = load i32, ptr %6, align 4, !tbaa !18
  %30 = sext i32 %29 to i64
  %31 = getelementptr inbounds [1000 x i8], ptr %5, i64 0, i64 %30
  store i8 48, ptr %31, align 1, !tbaa !16
  br label %32

32:                                               ; preds = %28
  %33 = load i32, ptr %6, align 4, !tbaa !18
  %34 = add nsw i32 %33, 1
  store i32 %34, ptr %6, align 4, !tbaa !18
  br label %23, !llvm.loop !20

35:                                               ; preds = %23
  br label %65

36:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  %37 = getelementptr inbounds %"class.sc_core::wif_trace", ptr %8, i32 0, i32 4
  %38 = load i32, ptr %37, align 8, !tbaa !19
  %39 = sub nsw i32 %38, 1
  %40 = shl i32 1, %39
  store i32 %40, ptr %7, align 4, !tbaa !18
  store i32 0, ptr %6, align 4, !tbaa !18
  br label %41

41:                                               ; preds = %61, %36
  %42 = load i32, ptr %6, align 4, !tbaa !18
  %43 = getelementptr inbounds %"class.sc_core::wif_trace", ptr %8, i32 0, i32 4
  %44 = load i32, ptr %43, align 8, !tbaa !19
  %45 = icmp slt i32 %42, %44
  br i1 %45, label %46, label %64

46:                                               ; preds = %41
  %47 = getelementptr inbounds %"class.sc_core::wif_unsigned_char_trace", ptr %8, i32 0, i32 2
  %48 = load ptr, ptr %47, align 8, !tbaa !9
  %49 = load i8, ptr %48, align 1, !tbaa !16
  %50 = zext i8 %49 to i32
  %51 = load i32, ptr %7, align 4, !tbaa !18
  %52 = and i32 %50, %51
  %53 = icmp ne i32 %52, 0
  %54 = zext i1 %53 to i64
  %55 = select i1 %53, i8 49, i8 48
  %56 = load i32, ptr %6, align 4, !tbaa !18
  %57 = sext i32 %56 to i64
  %58 = getelementptr inbounds [1000 x i8], ptr %5, i64 0, i64 %57
  store i8 %55, ptr %58, align 1, !tbaa !16
  %59 = load i32, ptr %7, align 4, !tbaa !18
  %60 = lshr i32 %59, 1
  store i32 %60, ptr %7, align 4, !tbaa !18
  br label %61

61:                                               ; preds = %46
  %62 = load i32, ptr %6, align 4, !tbaa !18
  %63 = add nsw i32 %62, 1
  store i32 %63, ptr %6, align 4, !tbaa !18
  br label %41, !llvm.loop !22

64:                                               ; preds = %41
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  br label %65

65:                                               ; preds = %64, %35
  %66 = load i32, ptr %6, align 4, !tbaa !18
  %67 = sext i32 %66 to i64
  %68 = getelementptr inbounds [1000 x i8], ptr %5, i64 0, i64 %67
  store i8 0, ptr %68, align 1, !tbaa !16
  %69 = load ptr, ptr %4, align 8, !tbaa !5
  %70 = getelementptr inbounds %"class.sc_core::wif_trace", ptr %8, i32 0, i32 2
  %71 = call noundef ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5c_strEv(ptr noundef nonnull align 8 dereferenceable(32) %70) #3
  %72 = getelementptr inbounds [1000 x i8], ptr %5, i64 0, i64 0
  %73 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %69, ptr noundef @.str.10, ptr noundef %71, ptr noundef %72) #3
  %74 = getelementptr inbounds %"class.sc_core::wif_unsigned_char_trace", ptr %8, i32 0, i32 2
  %75 = load ptr, ptr %74, align 8, !tbaa !9
  %76 = load i8, ptr %75, align 1, !tbaa !16
  %77 = getelementptr inbounds %"class.sc_core::wif_unsigned_char_trace", ptr %8, i32 0, i32 3
  store i8 %76, ptr %77, align 8, !tbaa !23
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 1000, ptr %5) #3
  ret void
}

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 "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++ TBAA"}
!9 = !{!10, !6, i64 88}
!10 = !{!"_ZTSN7sc_core23wif_unsigned_char_traceE", !11, i64 0, !6, i64 88, !7, i64 96, !7, i64 97}
!11 = !{!"_ZTSN7sc_core9wif_traceE", !12, i64 8, !12, i64 40, !6, i64 72, !15, i64 80}
!12 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE", !13, i64 0, !14, i64 8, !7, i64 16}
!13 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_Alloc_hiderE", !6, i64 0}
!14 = !{!"long", !7, i64 0}
!15 = !{!"int", !7, i64 0}
!16 = !{!7, !7, i64 0}
!17 = !{!10, !7, i64 97}
!18 = !{!15, !15, i64 0}
!19 = !{!11, !15, i64 80}
!20 = distinct !{!20, !21}
!21 = !{!"llvm.loop.mustprogress"}
!22 = distinct !{!22, !21}
!23 = !{!10, !7, i64 96}


; 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.10 = external hidden unnamed_addr constant [18 x i8], align 1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5c_strEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nofree nounwind
declare noundef i32 @fprintf(ptr nocapture noundef, ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN7sc_core23wif_unsigned_char_trace5writeEP8_IO_FILE(ptr noundef nonnull align 8 dereferenceable(98) %0, ptr nocapture noundef %1) unnamed_addr #1 align 2 {
  %3 = alloca [1000 x i8], align 16
  call void @llvm.lifetime.start.p0(i64 1000, ptr nonnull %3) #4
  %4 = getelementptr inbounds i8, ptr %0, i64 88
  %5 = load ptr, ptr %4, align 8, !tbaa !5
  %6 = load i8, ptr %5, align 1, !tbaa !15
  %7 = getelementptr inbounds i8, ptr %0, i64 97
  %8 = load i8, ptr %7, align 1, !tbaa !16
  %9 = and i8 %8, %6
  %.not = icmp eq i8 %9, %6
  %10 = getelementptr inbounds i8, ptr %0, i64 80
  %11 = load i32, ptr %10, align 8, !tbaa !17
  %12 = icmp sgt i32 %11, 0
  br i1 %.not, label %14, label %.preheader

.preheader:                                       ; preds = %2
  br i1 %12, label %.lr.ph.preheader, label %.loopexit

.lr.ph.preheader:                                 ; preds = %.preheader
  %13 = zext nneg i32 %11 to i64
  call void @llvm.memset.p0.i64(ptr nonnull align 16 %3, i8 48, i64 %13, i1 false), !tbaa !15
  br label %.loopexit

14:                                               ; preds = %2
  br i1 %12, label %.lr.ph16.preheader, label %.loopexit

.lr.ph16.preheader:                               ; preds = %14
  %15 = add nsw i32 %11, -1
  %16 = shl nuw i32 1, %15
  %wide.trip.count22 = zext nneg i32 %11 to i64
  %17 = zext i8 %6 to i32
  %xtraiter = and i64 %wide.trip.count22, 1
  %18 = icmp eq i32 %11, 1
  br i1 %18, label %.loopexit.loopexit.unr-lcssa, label %.lr.ph16.preheader.new

.lr.ph16.preheader.new:                           ; preds = %.lr.ph16.preheader
  %unroll_iter = and i64 %wide.trip.count22, 2147483646
  br label %.lr.ph16

.lr.ph16:                                         ; preds = %.lr.ph16, %.lr.ph16.preheader.new
  %indvars.iv = phi i64 [ 0, %.lr.ph16.preheader.new ], [ %indvars.iv.next.1, %.lr.ph16 ]
  %.015 = phi i32 [ %16, %.lr.ph16.preheader.new ], [ %26, %.lr.ph16 ]
  %niter = phi i64 [ 0, %.lr.ph16.preheader.new ], [ %niter.next.1, %.lr.ph16 ]
  %19 = and i32 %.015, %17
  %.not11 = icmp eq i32 %19, 0
  %20 = select i1 %.not11, i8 48, i8 49
  %21 = getelementptr inbounds [1000 x i8], ptr %3, i64 0, i64 %indvars.iv
  store i8 %20, ptr %21, align 2, !tbaa !15
  %22 = lshr i32 %.015, 1
  %indvars.iv.next = or disjoint i64 %indvars.iv, 1
  %23 = and i32 %22, %17
  %.not11.1 = icmp eq i32 %23, 0
  %24 = select i1 %.not11.1, i8 48, i8 49
  %25 = getelementptr inbounds [1000 x i8], ptr %3, i64 0, i64 %indvars.iv.next
  store i8 %24, ptr %25, align 1, !tbaa !15
  %26 = lshr i32 %.015, 2
  %indvars.iv.next.1 = add nuw nsw i64 %indvars.iv, 2
  %niter.next.1 = add i64 %niter, 2
  %niter.ncmp.1 = icmp eq i64 %niter.next.1, %unroll_iter
  br i1 %niter.ncmp.1, label %.loopexit.loopexit.unr-lcssa, label %.lr.ph16, !llvm.loop !18

.loopexit.loopexit.unr-lcssa:                     ; preds = %.lr.ph16, %.lr.ph16.preheader
  %indvars.iv.unr = phi i64 [ 0, %.lr.ph16.preheader ], [ %indvars.iv.next.1, %.lr.ph16 ]
  %.015.unr = phi i32 [ %16, %.lr.ph16.preheader ], [ %26, %.lr.ph16 ]
  %lcmp.mod.not = icmp eq i64 %xtraiter, 0
  br i1 %lcmp.mod.not, label %.loopexit, label %.lr.ph16.epil

.lr.ph16.epil:                                    ; preds = %.loopexit.loopexit.unr-lcssa
  %27 = and i32 %.015.unr, %17
  %.not11.epil = icmp eq i32 %27, 0
  %28 = select i1 %.not11.epil, i8 48, i8 49
  %29 = getelementptr inbounds [1000 x i8], ptr %3, i64 0, i64 %indvars.iv.unr
  store i8 %28, ptr %29, align 1, !tbaa !15
  br label %.loopexit

.loopexit:                                        ; preds = %.lr.ph16.epil, %.loopexit.loopexit.unr-lcssa, %.lr.ph.preheader, %.preheader, %14
  %.2 = phi i32 [ 0, %14 ], [ 0, %.preheader ], [ %11, %.lr.ph.preheader ], [ %11, %.loopexit.loopexit.unr-lcssa ], [ %11, %.lr.ph16.epil ]
  %30 = zext nneg i32 %.2 to i64
  %31 = getelementptr inbounds [1000 x i8], ptr %3, i64 0, i64 %30
  store i8 0, ptr %31, align 1, !tbaa !15
  %32 = getelementptr inbounds i8, ptr %0, i64 40
  %33 = tail call noundef ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5c_strEv(ptr noundef nonnull align 8 dereferenceable(32) %32) #4
  %34 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %1, ptr noundef nonnull @.str.10, ptr noundef %33, ptr noundef nonnull %3) #4
  %35 = load ptr, ptr %4, align 8, !tbaa !5
  %36 = load i8, ptr %35, align 1, !tbaa !15
  %37 = getelementptr inbounds i8, ptr %0, i64 96
  store i8 %36, ptr %37, align 8, !tbaa !20
  call void @llvm.lifetime.end.p0(i64 1000, ptr nonnull %3) #4
  ret void
}

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #3

attributes #0 = { mustprogress 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 = { 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" }
attributes #3 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #4 = { 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, !10, i64 88}
!6 = !{!"_ZTSN7sc_core23wif_unsigned_char_traceE", !7, i64 0, !10, i64 88, !11, i64 96, !11, i64 97}
!7 = !{!"_ZTSN7sc_core9wif_traceE", !8, i64 8, !8, i64 40, !10, i64 72, !14, i64 80}
!8 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE", !9, i64 0, !13, i64 8, !11, i64 16}
!9 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_Alloc_hiderE", !10, i64 0}
!10 = !{!"any pointer", !11, i64 0}
!11 = !{!"omnipotent char", !12, i64 0}
!12 = !{!"Simple C++ TBAA"}
!13 = !{!"long", !11, i64 0}
!14 = !{!"int", !11, i64 0}
!15 = !{!11, !11, i64 0}
!16 = !{!6, !11, i64 97}
!17 = !{!7, !14, i64 80}
!18 = distinct !{!18, !19}
!19 = !{!"llvm.loop.mustprogress"}
!20 = !{!6, !11, i64 96}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopIdiomRecognizePass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass