; LLVM IR from SSBMTonberry/pocketlzma :: ref_spec/lzma1900/CPP/7zip/Common/CreateCoder.ll (Z14GetHashMethodsR13CRecordVectorIyE)

; 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"

%struct.CHasherInfo = type { ptr, i64, ptr, i32 }

@g_NumHashers = external dso_local global i32, align 4
@g_Hashers = external dso_local global [16 x ptr], align 16

; 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 @_Z14GetHashMethodsR13CRecordVectorIyE(ptr noundef nonnull align 8 dereferenceable(16) %0) #1 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  %4 = load ptr, ptr %2, align 8, !tbaa !5
  %5 = load i32, ptr @g_NumHashers, align 4, !tbaa !9
  call void @_ZN13CRecordVectorIyE15ClearAndSetSizeEj(ptr noundef nonnull align 8 dereferenceable(16) %4, i32 noundef %5)
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  store i32 0, ptr %3, align 4, !tbaa !9
  br label %6

6:                                                ; preds = %20, %1
  %7 = load i32, ptr %3, align 4, !tbaa !9
  %8 = load i32, ptr @g_NumHashers, align 4, !tbaa !9
  %9 = icmp ult i32 %7, %8
  br i1 %9, label %10, label %23

10:                                               ; preds = %6
  %11 = load i32, ptr %3, align 4, !tbaa !9
  %12 = zext i32 %11 to i64
  %13 = getelementptr inbounds [16 x ptr], ptr @g_Hashers, i64 0, i64 %12
  %14 = load ptr, ptr %13, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.CHasherInfo, ptr %14, i32 0, i32 1
  %16 = load i64, ptr %15, align 8, !tbaa !11
  %17 = load ptr, ptr %2, align 8, !tbaa !5
  %18 = load i32, ptr %3, align 4, !tbaa !9
  %19 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN13CRecordVectorIyEixEj(ptr noundef nonnull align 8 dereferenceable(16) %17, i32 noundef %18)
  store i64 %16, ptr %19, align 8, !tbaa !14
  br label %20

20:                                               ; preds = %10
  %21 = load i32, ptr %3, align 4, !tbaa !9
  %22 = add i32 %21, 1
  store i32 %22, ptr %3, align 4, !tbaa !9
  br label %6, !llvm.loop !15

23:                                               ; preds = %6
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN13CRecordVectorIyE15ClearAndSetSizeEj(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN13CRecordVectorIyEixEj(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef) #2 align 2

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 = { 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 #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, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !13, i64 8}
!12 = !{!"_ZTS11CHasherInfo", !6, i64 0, !13, i64 8, !6, i64 16, !10, i64 24}
!13 = !{!"long long", !7, i64 0}
!14 = !{!13, !13, 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"

@g_NumHashers = external dso_local local_unnamed_addr global i32, align 4
@g_Hashers = external dso_local local_unnamed_addr global [16 x ptr], align 16

; Function Attrs: mustprogress uwtable
define dso_local void @_Z14GetHashMethodsR13CRecordVectorIyE(ptr noundef nonnull align 8 dereferenceable(16) %0) local_unnamed_addr #0 {
  %2 = load i32, ptr @g_NumHashers, align 4, !tbaa !5
  tail call void @_ZN13CRecordVectorIyE15ClearAndSetSizeEj(ptr noundef nonnull align 8 dereferenceable(16) %0, i32 noundef %2)
  %3 = load i32, ptr @g_NumHashers, align 4, !tbaa !5
  %.not = icmp eq i32 %3, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %1, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %1 ]
  %4 = getelementptr inbounds [16 x ptr], ptr @g_Hashers, i64 0, i64 %indvars.iv
  %5 = load ptr, ptr %4, align 8, !tbaa !9
  %6 = getelementptr inbounds i8, ptr %5, i64 8
  %7 = load i64, ptr %6, align 8, !tbaa !11
  %8 = trunc nuw i64 %indvars.iv to i32
  %9 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZN13CRecordVectorIyEixEj(ptr noundef nonnull align 8 dereferenceable(16) %0, i32 noundef %8)
  store i64 %7, ptr %9, align 8, !tbaa !14
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %10 = load i32, ptr @g_NumHashers, align 4, !tbaa !5
  %11 = zext i32 %10 to i64
  %12 = icmp ult i64 %indvars.iv.next, %11
  br i1 %12, label %.lr.ph, label %._crit_edge, !llvm.loop !15

._crit_edge:                                      ; preds = %.lr.ph, %1
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN13CRecordVectorIyE15ClearAndSetSizeEj(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN13CRecordVectorIyEixEj(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef) local_unnamed_addr #1 align 2

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 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !13, i64 8}
!12 = !{!"_ZTS11CHasherInfo", !10, i64 0, !13, i64 8, !10, i64 16, !6, i64 24}
!13 = !{!"long long", !7, i64 0}
!14 = !{!13, !13, i64 0}
!15 = distinct !{!15, !16}
!16 = !{!"llvm.loop.mustprogress"}


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