; LLVM IR from int32bit/leetcode :: algorithms/LongestSubstringWithoutRepeatingCharacters (src2)

; 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"

@__const.main.s1 = external hidden unnamed_addr constant [5 x i8], align 1
@__const.main.s2 = external hidden unnamed_addr constant [5 x i8], align 1
@__const.main.s3 = external hidden unnamed_addr constant [5 x i8], align 1
@__const.main.s4 = external hidden unnamed_addr constant [7 x i8], align 1
@__const.main.s5 = external hidden unnamed_addr constant [8 x i8], align 1
@__const.main.s6 = external hidden unnamed_addr constant [3 x i8], align 1
@.str = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_Z24lengthOfLongestSubstringPc(ptr noundef) #0

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

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

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main(i32 noundef %0, ptr noundef %1) #2 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca [5 x i8], align 1
  %7 = alloca [5 x i8], align 1
  %8 = alloca [5 x i8], align 1
  %9 = alloca [7 x i8], align 1
  %10 = alloca [8 x i8], align 1
  %11 = alloca [3 x i8], align 1
  store i32 0, ptr %3, align 4
  store i32 %0, ptr %4, align 4, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 5, ptr %6) #5
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 %6, ptr align 1 @__const.main.s1, i64 5, i1 false)
  call void @llvm.lifetime.start.p0(i64 5, ptr %7) #5
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 %7, ptr align 1 @__const.main.s2, i64 5, i1 false)
  call void @llvm.lifetime.start.p0(i64 5, ptr %8) #5
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 %8, ptr align 1 @__const.main.s3, i64 5, i1 false)
  call void @llvm.lifetime.start.p0(i64 7, ptr %9) #5
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 %9, ptr align 1 @__const.main.s4, i64 7, i1 false)
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #5
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 %10, ptr align 1 @__const.main.s5, i64 8, i1 false)
  call void @llvm.lifetime.start.p0(i64 3, ptr %11) #5
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 %11, ptr align 1 @__const.main.s6, i64 3, i1 false)
  %12 = getelementptr inbounds [7 x i8], ptr %9, i64 0, i64 0
  %13 = call noundef i32 @_Z24lengthOfLongestSubstringPc(ptr noundef %12)
  %14 = call i32 (ptr, ...) @printf(ptr noundef @.str, i32 noundef %13)
  %15 = getelementptr inbounds [8 x i8], ptr %10, i64 0, i64 0
  %16 = call noundef i32 @_Z24lengthOfLongestSubstringPc(ptr noundef %15)
  %17 = call i32 (ptr, ...) @printf(ptr noundef @.str, i32 noundef %16)
  %18 = getelementptr inbounds [3 x i8], ptr %11, i64 0, i64 0
  %19 = call noundef i32 @_Z24lengthOfLongestSubstringPc(ptr noundef %18)
  %20 = call i32 (ptr, ...) @printf(ptr noundef @.str, i32 noundef %19)
  call void @llvm.lifetime.end.p0(i64 3, ptr %11) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #5
  call void @llvm.lifetime.end.p0(i64 7, ptr %9) #5
  call void @llvm.lifetime.end.p0(i64 5, ptr %8) #5
  call void @llvm.lifetime.end.p0(i64 5, ptr %7) #5
  call void @llvm.lifetime.end.p0(i64 5, ptr %6) #5
  ret i32 0
}

; 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) #3

declare i32 @printf(ptr noundef, ...) #4

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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress norecurse 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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { "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 #5 = { 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 = !{!"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}


; 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"

@__const.main.s4 = external hidden unnamed_addr constant [7 x i8], align 1
@__const.main.s5 = external hidden unnamed_addr constant [8 x i8], align 1
@__const.main.s6 = external hidden unnamed_addr constant [3 x i8], align 1
@.str = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_Z24lengthOfLongestSubstringPc(ptr noundef) local_unnamed_addr #0

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

; Function Attrs: mustprogress norecurse nounwind uwtable
define dso_local noundef i32 @main(i32 noundef %0, ptr nocapture noundef readnone %1) local_unnamed_addr #2 {
  %3 = alloca [7 x i8], align 1
  %4 = alloca [8 x i8], align 8
  %5 = alloca [3 x i8], align 1
  call void @llvm.lifetime.start.p0(i64 7, ptr nonnull %3) #5
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 1 dereferenceable(7) %3, ptr noundef nonnull align 1 dereferenceable(7) @__const.main.s4, i64 7, i1 false)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #5
  %6 = load i64, ptr @__const.main.s5, align 1
  store i64 %6, ptr %4, align 8
  call void @llvm.lifetime.start.p0(i64 3, ptr nonnull %5) #5
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 1 dereferenceable(3) %5, ptr noundef nonnull align 1 dereferenceable(3) @__const.main.s6, i64 3, i1 false)
  %7 = call noundef i32 @_Z24lengthOfLongestSubstringPc(ptr noundef nonnull %3)
  %8 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef %7)
  %9 = call noundef i32 @_Z24lengthOfLongestSubstringPc(ptr noundef nonnull %4)
  %10 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef %9)
  %11 = call noundef i32 @_Z24lengthOfLongestSubstringPc(ptr noundef nonnull %5)
  %12 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef %11)
  call void @llvm.lifetime.end.p0(i64 3, ptr nonnull %5) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #5
  call void @llvm.lifetime.end.p0(i64 7, ptr nonnull %3) #5
  ret i32 0
}

; 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) #3

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #4

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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress norecurse 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 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { nofree nounwind "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 #5 = { 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: EarlyCSEPass,GlobalOptPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass