; LLVM IR from musetronstar/tagd :: tagd/src/rank.ll (ZN4tagd4rank4initEm)

; 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.tagd::rank" = type { %"class.std::__cxx11::basic_string" }
%"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] }

; 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
declare dso_local noundef i32 @_ZN4tagd4rank8validateERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZN4tagd4rank4initEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %1) #1 align 2 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca i64, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i64 %1, ptr %5, align 8, !tbaa !9
  %8 = load ptr, ptr %4, align 8
  %9 = getelementptr inbounds %"class.tagd::rank", ptr %8, i32 0, i32 0
  %10 = load i64, ptr %5, align 8, !tbaa !9
  %11 = call noundef i64 @_ZN4tagd4rank6unpackERNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEm(ptr noundef nonnull align 8 dereferenceable(32) %9, i64 noundef %10)
  %12 = icmp eq i64 %11, 0
  br i1 %12, label %13, label %14

13:                                               ; preds = %2
  store i32 7, ptr %3, align 4
  br label %25

14:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  %15 = getelementptr inbounds %"class.tagd::rank", ptr %8, i32 0, i32 0
  %16 = call noundef i32 @_ZN4tagd4rank8validateERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(32) %8, ptr noundef nonnull align 8 dereferenceable(32) %15)
  store i32 %16, ptr %6, align 4, !tbaa !11
  %17 = load i32, ptr %6, align 4, !tbaa !11
  %18 = icmp ne i32 %17, 0
  br i1 %18, label %19, label %22

19:                                               ; preds = %14
  %20 = getelementptr inbounds %"class.tagd::rank", ptr %8, i32 0, i32 0
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5clearEv(ptr noundef nonnull align 8 dereferenceable(32) %20) #3
  %21 = load i32, ptr %6, align 4, !tbaa !11
  store i32 %21, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %24

22:                                               ; preds = %14
  %23 = load i32, ptr %6, align 4, !tbaa !11
  store i32 %23, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %24

24:                                               ; preds = %22, %19
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  br label %25

25:                                               ; preds = %24, %13
  %26 = load i32, ptr %3, align 4
  ret i32 %26
}

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_ZN4tagd4rank6unpackERNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5clearEv(ptr noundef nonnull align 8 dereferenceable(32)) #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 = !{!"long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"_ZTSN4tagd4codeE", !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"

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_ZN4tagd4rank8validateERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZN4tagd4rank4initEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %1) local_unnamed_addr #0 align 2 {
  %3 = tail call noundef i64 @_ZN4tagd4rank6unpackERNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %1)
  %4 = icmp eq i64 %3, 0
  br i1 %4, label %8, label %5

5:                                                ; preds = %2
  %6 = tail call noundef i32 @_ZN4tagd4rank8validateERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(32) %0, ptr noundef nonnull align 8 dereferenceable(32) %0)
  %.not = icmp eq i32 %6, 0
  br i1 %.not, label %8, label %7

7:                                                ; preds = %5
  tail call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5clearEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #2
  br label %8

8:                                                ; preds = %7, %5, %2
  %.1 = phi i32 [ 7, %2 ], [ 0, %5 ], [ %6, %7 ]
  ret i32 %.1
}

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_ZN4tagd4rank6unpackERNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5clearEv(ptr noundef nonnull align 8 dereferenceable(32)) 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" }
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)"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,SROAPass,SimplifyCFGPass,TailCallElimPass