; LLVM IR from stan-dev/math :: lib/boost_1.84.0/tools/quickbook/src (glob)

; 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"

@.str.14 = external hidden unnamed_addr constant [6 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: 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 noundef i64 @_ZN9quickbook14find_glob_charENS_11string_viewEm(ptr noundef %0, i64 noundef %1) #1 {
  %3 = alloca i64, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i64, align 8
  %6 = alloca i64, align 8
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i64 %1, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  store i64 0, ptr %6, align 8, !tbaa !9
  br label %8

8:                                                ; preds = %24, %2
  %9 = call noundef i64 @_ZNK5boost17basic_string_viewIcSt11char_traitsIcEE13find_first_ofEPKcm(ptr noundef nonnull align 8 dereferenceable(16) %0, ptr noundef @.str.14, i64 noundef 0) #3
  store i64 %9, ptr %5, align 8, !tbaa !9
  %10 = load i64, ptr %5, align 8, !tbaa !9
  %11 = icmp eq i64 %10, -1
  br i1 %11, label %12, label %14

12:                                               ; preds = %8
  %13 = load i64, ptr %5, align 8, !tbaa !9
  store i64 %13, ptr %3, align 8
  store i32 1, ptr %7, align 4
  br label %31

14:                                               ; preds = %8
  %15 = load i64, ptr %5, align 8, !tbaa !9
  %16 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNK5boost17basic_string_viewIcSt11char_traitsIcEEixEm(ptr noundef nonnull align 8 dereferenceable(16) %0, i64 noundef %15) #3
  %17 = load i8, ptr %16, align 1, !tbaa !11
  %18 = sext i8 %17 to i32
  %19 = icmp ne i32 %18, 92
  br i1 %19, label %20, label %24

20:                                               ; preds = %14
  %21 = load i64, ptr %5, align 8, !tbaa !9
  %22 = load i64, ptr %6, align 8, !tbaa !9
  %23 = add i64 %21, %22
  store i64 %23, ptr %3, align 8
  store i32 1, ptr %7, align 4
  br label %31

24:                                               ; preds = %14
  %25 = load i64, ptr %5, align 8, !tbaa !9
  %26 = add i64 %25, 2
  call void @_ZN5boost17basic_string_viewIcSt11char_traitsIcEE13remove_prefixEm(ptr noundef nonnull align 8 dereferenceable(16) %0, i64 noundef %26)
  %27 = load i64, ptr %5, align 8, !tbaa !9
  %28 = add i64 %27, 2
  %29 = load i64, ptr %6, align 8, !tbaa !9
  %30 = add i64 %29, %28
  store i64 %30, ptr %6, align 8, !tbaa !9
  br label %8, !llvm.loop !12

31:                                               ; preds = %20, %12
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  %32 = load i64, ptr %3, align 8
  ret i64 %32
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNK5boost17basic_string_viewIcSt11char_traitsIcEE13find_first_ofEPKcm(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef, i64 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 1 dereferenceable(1) ptr @_ZNK5boost17basic_string_viewIcSt11char_traitsIcEEixEm(ptr noundef nonnull align 8 dereferenceable(16), i64 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN5boost17basic_string_viewIcSt11char_traitsIcEE13remove_prefixEm(ptr noundef nonnull align 8 dereferenceable(16), i64 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 = !{!"long", !7, i64 0}
!11 = !{!7, !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"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"

@.str.14 = external hidden unnamed_addr constant [6 x i8], align 1

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i64 @_ZN9quickbook14find_glob_charENS_11string_viewEm(ptr noundef nonnull %0, i64 noundef %1) local_unnamed_addr #0 {
  %3 = tail call noundef i64 @_ZNK5boost17basic_string_viewIcSt11char_traitsIcEE13find_first_ofEPKcm(ptr noundef nonnull align 8 dereferenceable(16) %0, ptr noundef nonnull @.str.14, i64 noundef 0) #1
  %4 = icmp eq i64 %3, -1
  br i1 %4, label %.loopexit, label %.lr.ph

.lr.ph:                                           ; preds = %2, %10
  %5 = phi i64 [ %13, %10 ], [ %3, %2 ]
  %.013 = phi i64 [ %12, %10 ], [ 0, %2 ]
  %6 = tail call noundef nonnull align 1 dereferenceable(1) ptr @_ZNK5boost17basic_string_viewIcSt11char_traitsIcEEixEm(ptr noundef nonnull align 8 dereferenceable(16) %0, i64 noundef %5) #1
  %7 = load i8, ptr %6, align 1, !tbaa !5
  %.not = icmp eq i8 %7, 92
  br i1 %.not, label %10, label %8

8:                                                ; preds = %.lr.ph
  %9 = add i64 %5, %.013
  br label %.loopexit

10:                                               ; preds = %.lr.ph
  %11 = add i64 %5, 2
  tail call void @_ZN5boost17basic_string_viewIcSt11char_traitsIcEE13remove_prefixEm(ptr noundef nonnull align 8 dereferenceable(16) %0, i64 noundef %11)
  %12 = add i64 %11, %.013
  %13 = tail call noundef i64 @_ZNK5boost17basic_string_viewIcSt11char_traitsIcEE13find_first_ofEPKcm(ptr noundef nonnull align 8 dereferenceable(16) %0, ptr noundef nonnull @.str.14, i64 noundef 0) #1
  %14 = icmp eq i64 %13, -1
  br i1 %14, label %.loopexit, label %.lr.ph, !llvm.loop !8

.loopexit:                                        ; preds = %10, %2, %8
  %.09 = phi i64 [ %9, %8 ], [ -1, %2 ], [ -1, %10 ]
  ret i64 %.09
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNK5boost17basic_string_viewIcSt11char_traitsIcEE13find_first_ofEPKcm(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef, i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 1 dereferenceable(1) ptr @_ZNK5boost17basic_string_viewIcSt11char_traitsIcEEixEm(ptr noundef nonnull align 8 dereferenceable(16), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN5boost17basic_string_viewIcSt11char_traitsIcEE13remove_prefixEm(ptr noundef nonnull align 8 dereferenceable(16), i64 noundef) local_unnamed_addr #0 align 2

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" }
attributes #1 = { 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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = distinct !{!8, !9}
!9 = !{!"llvm.loop.mustprogress"}


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