; LLVM IR from ADJA/algos :: NumberTheory/Matrix.ll (Z6binPow6Matrixx)

; 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.Matrix = type { [55 x [55 x i32]], i32, i32 }

; Function Attrs: mustprogress uwtable
define dso_local void @_Z6binPow6Matrixx(ptr dead_on_unwind noalias writable sret(%class.Matrix) align 4 %0, ptr noundef byval(%class.Matrix) align 8 %1, i64 noundef %2) #0 {
  %4 = alloca i64, align 8
  %5 = alloca %class.Matrix, align 4
  %6 = alloca %class.Matrix, align 8
  %7 = alloca %class.Matrix, align 8
  %8 = alloca %class.Matrix, align 4
  %9 = alloca %class.Matrix, align 8
  %10 = alloca %class.Matrix, align 8
  store i64 %2, ptr %4, align 8, !tbaa !5
  %11 = getelementptr inbounds %class.Matrix, ptr %1, i32 0, i32 1
  %12 = load i32, ptr %11, align 4, !tbaa !9
  call void @_ZN6Matrix8identityEi(ptr dead_on_unwind writable sret(%class.Matrix) align 4 %0, i32 noundef %12)
  br label %13

13:                                               ; preds = %26, %3
  %14 = load i64, ptr %4, align 8, !tbaa !5
  %15 = icmp ne i64 %14, 0
  br i1 %15, label %16, label %27

16:                                               ; preds = %13
  %17 = load i64, ptr %4, align 8, !tbaa !5
  %18 = and i64 %17, 1
  %19 = icmp ne i64 %18, 0
  br i1 %19, label %20, label %23

20:                                               ; preds = %16
  call void @llvm.lifetime.start.p0(i64 12108, ptr %5) #3
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %6, ptr align 4 %0, i64 12108, i1 false), !tbaa.struct !12
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %7, ptr align 8 %1, i64 12108, i1 false), !tbaa.struct !12
  call void @_ZN6Matrix3mulES_S_(ptr dead_on_unwind writable sret(%class.Matrix) align 4 %5, ptr noundef byval(%class.Matrix) align 8 %6, ptr noundef byval(%class.Matrix) align 8 %7)
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %0, ptr align 4 %5, i64 12108, i1 false), !tbaa.struct !12
  call void @llvm.lifetime.end.p0(i64 12108, ptr %5) #3
  %21 = load i64, ptr %4, align 8, !tbaa !5
  %22 = add nsw i64 %21, -1
  store i64 %22, ptr %4, align 8, !tbaa !5
  br label %26

23:                                               ; preds = %16
  call void @llvm.lifetime.start.p0(i64 12108, ptr %8) #3
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %9, ptr align 8 %1, i64 12108, i1 false), !tbaa.struct !12
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %10, ptr align 8 %1, i64 12108, i1 false), !tbaa.struct !12
  call void @_ZN6Matrix3mulES_S_(ptr dead_on_unwind writable sret(%class.Matrix) align 4 %8, ptr noundef byval(%class.Matrix) align 8 %9, ptr noundef byval(%class.Matrix) align 8 %10)
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %1, ptr align 4 %8, i64 12108, i1 false), !tbaa.struct !12
  call void @llvm.lifetime.end.p0(i64 12108, ptr %8) #3
  %24 = load i64, ptr %4, align 8, !tbaa !5
  %25 = sdiv i64 %24, 2
  store i64 %25, ptr %4, align 8, !tbaa !5
  br label %26

26:                                               ; preds = %23, %20
  br label %13, !llvm.loop !15

27:                                               ; preds = %13
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN6Matrix8identityEi(ptr dead_on_unwind noalias writable sret(%class.Matrix) align 4, i32 noundef) #0 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN6Matrix3mulES_S_(ptr dead_on_unwind noalias writable sret(%class.Matrix) align 4, ptr noundef byval(%class.Matrix) align 8, ptr noundef byval(%class.Matrix) align 8) #0 align 2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

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" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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 = !{!"long long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !11, i64 12100}
!10 = !{!"_ZTS6Matrix", !7, i64 0, !11, i64 12100, !11, i64 12104}
!11 = !{!"int", !7, i64 0}
!12 = !{i64 0, i64 12100, !13, i64 12100, i64 4, !14, i64 12104, i64 4, !14}
!13 = !{!7, !7, i64 0}
!14 = !{!11, !11, i64 0}
!15 = distinct !{!15, !16}
!16 = !{!"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"

%class.Matrix = type { [55 x [55 x i32]], i32, i32 }

; Function Attrs: mustprogress uwtable
define dso_local void @_Z6binPow6Matrixx(ptr dead_on_unwind noalias writable sret(%class.Matrix) align 4 %0, ptr nocapture noundef byval(%class.Matrix) align 8 %1, i64 noundef %2) local_unnamed_addr #0 {
  %4 = alloca %class.Matrix, align 4
  %5 = alloca %class.Matrix, align 8
  %6 = alloca %class.Matrix, align 4
  %7 = getelementptr inbounds i8, ptr %1, i64 12100
  %8 = load i32, ptr %7, align 4, !tbaa !5
  tail call void @_ZN6Matrix8identityEi(ptr dead_on_unwind writable sret(%class.Matrix) align 4 %0, i32 noundef %8)
  %.not5 = icmp eq i64 %2, 0
  br i1 %.not5, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %3, %14
  %.06 = phi i64 [ %.1, %14 ], [ %2, %3 ]
  %9 = and i64 %.06, 1
  %.not4 = icmp eq i64 %9, 0
  br i1 %.not4, label %12, label %10

10:                                               ; preds = %.lr.ph
  call void @llvm.lifetime.start.p0(i64 12108, ptr nonnull %4) #3
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 8 dereferenceable(12108) %5, ptr noundef nonnull align 4 dereferenceable(12108) %0, i64 12108, i1 false), !tbaa.struct !10
  call void @_ZN6Matrix3mulES_S_(ptr dead_on_unwind nonnull writable sret(%class.Matrix) align 4 %4, ptr noundef nonnull byval(%class.Matrix) align 8 %5, ptr noundef nonnull byval(%class.Matrix) align 8 %1)
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 4 dereferenceable(12108) %0, ptr noundef nonnull align 4 dereferenceable(12108) %4, i64 12108, i1 false), !tbaa.struct !10
  call void @llvm.lifetime.end.p0(i64 12108, ptr nonnull %4) #3
  %11 = add nsw i64 %.06, -1
  br label %14

12:                                               ; preds = %.lr.ph
  call void @llvm.lifetime.start.p0(i64 12108, ptr nonnull %6) #3
  call void @_ZN6Matrix3mulES_S_(ptr dead_on_unwind nonnull writable sret(%class.Matrix) align 4 %6, ptr noundef nonnull byval(%class.Matrix) align 8 %1, ptr noundef nonnull byval(%class.Matrix) align 8 %1)
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 8 dereferenceable(12108) %1, ptr noundef nonnull align 4 dereferenceable(12108) %6, i64 12108, i1 false), !tbaa.struct !10
  call void @llvm.lifetime.end.p0(i64 12108, ptr nonnull %6) #3
  %13 = ashr exact i64 %.06, 1
  br label %14

14:                                               ; preds = %12, %10
  %.1 = phi i64 [ %11, %10 ], [ %13, %12 ]
  %.not = icmp eq i64 %.1, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !13

._crit_edge:                                      ; preds = %14, %3
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN6Matrix8identityEi(ptr dead_on_unwind noalias writable sret(%class.Matrix) align 4, i32 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN6Matrix3mulES_S_(ptr dead_on_unwind noalias writable sret(%class.Matrix) align 4, ptr noundef byval(%class.Matrix) align 8, ptr noundef byval(%class.Matrix) align 8) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

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" }
attributes #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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, !9, i64 12100}
!6 = !{!"_ZTS6Matrix", !7, i64 0, !9, i64 12100, !9, i64 12104}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!"int", !7, i64 0}
!10 = !{i64 0, i64 12100, !11, i64 12100, i64 4, !12, i64 12104, i64 4, !12}
!11 = !{!7, !7, i64 0}
!12 = !{!9, !9, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


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