; LLVM IR from mackorone/mms :: old/v2/src/mouse/mackAlgoTwo/History.ll (ZN11mackAlgoTwo7History4moveEv)

; 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"

@_ZN11mackAlgoTwo7History6m_sizeE = external dso_local global i8, align 1
@_ZN11mackAlgoTwo7History6m_tailE = external dso_local global i8, align 1
@_ZN11mackAlgoTwo7History11m_infoAddedE = external dso_local global i8, align 1
@_ZN11mackAlgoTwo7History6m_dataE = external dso_local global [16 x i32], align 16

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN11mackAlgoTwo7History4moveEv() #0 align 2 {
  %1 = load i8, ptr @_ZN11mackAlgoTwo7History11m_infoAddedE, align 1, !tbaa !5, !range !9, !noundef !10
  %2 = trunc i8 %1 to i1
  br i1 %2, label %7, label %3

3:                                                ; preds = %0
  %4 = load i8, ptr @_ZN11mackAlgoTwo7History6m_tailE, align 1, !tbaa !11
  %5 = zext i8 %4 to i64
  %6 = getelementptr inbounds [16 x i32], ptr @_ZN11mackAlgoTwo7History6m_dataE, i64 0, i64 %5
  store i32 0, ptr %6, align 4, !tbaa !12
  br label %7

7:                                                ; preds = %3, %0
  store i8 0, ptr @_ZN11mackAlgoTwo7History11m_infoAddedE, align 1, !tbaa !5
  %8 = load i8, ptr @_ZN11mackAlgoTwo7History6m_tailE, align 1, !tbaa !11
  %9 = zext i8 %8 to i32
  %10 = add nsw i32 %9, 1
  %11 = srem i32 %10, 16
  %12 = trunc i32 %11 to i8
  store i8 %12, ptr @_ZN11mackAlgoTwo7History6m_tailE, align 1, !tbaa !11
  %13 = load i8, ptr @_ZN11mackAlgoTwo7History6m_sizeE, align 1, !tbaa !11
  %14 = zext i8 %13 to i32
  %15 = icmp slt i32 %14, 16
  br i1 %15, label %16, label %21

16:                                               ; preds = %7
  %17 = load i8, ptr @_ZN11mackAlgoTwo7History6m_sizeE, align 1, !tbaa !11
  %18 = zext i8 %17 to i32
  %19 = add nsw i32 %18, 1
  %20 = trunc i32 %19 to i8
  store i8 %20, ptr @_ZN11mackAlgoTwo7History6m_sizeE, align 1, !tbaa !11
  br label %21

21:                                               ; preds = %16, %7
  ret void
}

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" }

!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 = !{!"bool", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{i8 0, i8 2}
!10 = !{}
!11 = !{!7, !7, i64 0}
!12 = !{!13, !13, i64 0}
!13 = !{!"int", !7, 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"

@_ZN11mackAlgoTwo7History6m_sizeE = external dso_local local_unnamed_addr global i8, align 1
@_ZN11mackAlgoTwo7History6m_tailE = external dso_local local_unnamed_addr global i8, align 1
@_ZN11mackAlgoTwo7History11m_infoAddedE = external dso_local local_unnamed_addr global i8, align 1
@_ZN11mackAlgoTwo7History6m_dataE = external dso_local local_unnamed_addr global [16 x i32], align 16

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(readwrite, argmem: none, inaccessiblemem: none) uwtable
define dso_local void @_ZN11mackAlgoTwo7History4moveEv() local_unnamed_addr #0 align 2 {
  %1 = load i8, ptr @_ZN11mackAlgoTwo7History11m_infoAddedE, align 1, !tbaa !5, !range !9, !noundef !10
  %2 = trunc nuw i8 %1 to i1
  %.pre = load i8, ptr @_ZN11mackAlgoTwo7History6m_tailE, align 1, !tbaa !11
  br i1 %2, label %6, label %3

3:                                                ; preds = %0
  %4 = zext i8 %.pre to i64
  %5 = getelementptr inbounds [16 x i32], ptr @_ZN11mackAlgoTwo7History6m_dataE, i64 0, i64 %4
  store i32 0, ptr %5, align 4, !tbaa !12
  br label %6

6:                                                ; preds = %3, %0
  store i8 0, ptr @_ZN11mackAlgoTwo7History11m_infoAddedE, align 1, !tbaa !5
  %7 = add i8 %.pre, 1
  %8 = and i8 %7, 15
  store i8 %8, ptr @_ZN11mackAlgoTwo7History6m_tailE, align 1, !tbaa !11
  %9 = load i8, ptr @_ZN11mackAlgoTwo7History6m_sizeE, align 1, !tbaa !11
  %10 = icmp ult i8 %9, 16
  br i1 %10, label %11, label %12

11:                                               ; preds = %6
  %narrow = add nuw nsw i8 %9, 1
  store i8 %narrow, ptr @_ZN11mackAlgoTwo7History6m_sizeE, align 1, !tbaa !11
  br label %12

12:                                               ; preds = %11, %6
  ret void
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(readwrite, argmem: none, inaccessiblemem: none) 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 = !{!"bool", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{i8 0, i8 2}
!10 = !{}
!11 = !{!7, !7, i64 0}
!12 = !{!13, !13, i64 0}
!13 = !{!"int", !7, i64 0}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,InstCombinePass,PostOrderFunctionAttrsPass