; LLVM IR from facebook/redex :: libredex/RedexContext.ll (ZNK12RedexContext18DexStringReprEqualclERK13DexStringReprS3_)

; 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.DexStringRepr = type { ptr, i32, i32 }

; Function Attrs: nounwind willreturn memory(read)
declare i32 @memcmp(ptr noundef, ptr noundef, i64 noundef) #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef zeroext i1 @_ZNK12RedexContext18DexStringReprEqualclERK13DexStringReprS3_(ptr noundef nonnull align 1 dereferenceable(1) %0, ptr noundef nonnull align 8 dereferenceable(16) %1, ptr noundef nonnull align 8 dereferenceable(16) %2) #1 align 2 {
  %4 = alloca i1, align 1
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !5
  %8 = load ptr, ptr %5, align 8
  %9 = load ptr, ptr %6, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.DexStringRepr, ptr %9, i32 0, i32 1
  %11 = load i32, ptr %10, align 8, !tbaa !9
  %12 = load ptr, ptr %7, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.DexStringRepr, ptr %12, i32 0, i32 1
  %14 = load i32, ptr %13, align 8, !tbaa !9
  %15 = icmp ne i32 %11, %14
  br i1 %15, label %16, label %17

16:                                               ; preds = %3
  store i1 false, ptr %4, align 1
  br label %30

17:                                               ; preds = %3
  %18 = load ptr, ptr %6, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.DexStringRepr, ptr %18, i32 0, i32 0
  %20 = load ptr, ptr %19, align 8, !tbaa !12
  %21 = load ptr, ptr %7, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.DexStringRepr, ptr %21, i32 0, i32 0
  %23 = load ptr, ptr %22, align 8, !tbaa !12
  %24 = load ptr, ptr %6, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct.DexStringRepr, ptr %24, i32 0, i32 1
  %26 = load i32, ptr %25, align 8, !tbaa !9
  %27 = zext i32 %26 to i64
  %28 = call i32 @memcmp(ptr noundef %20, ptr noundef %23, i64 noundef %27) #2
  %29 = icmp eq i32 %28, 0
  store i1 %29, ptr %4, align 1
  br label %30

30:                                               ; preds = %17, %16
  %31 = load i1, ptr %4, align 1
  ret i1 %31
}

attributes #0 = { nounwind willreturn memory(read) "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 willreturn memory(read) }

!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, !11, i64 8}
!10 = !{!"_ZTS13DexStringRepr", !6, i64 0, !11, i64 8, !11, i64 12}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !6, 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 nofree nounwind willreturn memory(read, inaccessiblemem: none) uwtable
define dso_local noundef zeroext i1 @_ZNK12RedexContext18DexStringReprEqualclERK13DexStringReprS3_(ptr nocapture noundef nonnull readnone align 1 dereferenceable(1) %0, ptr nocapture noundef nonnull readonly align 8 dereferenceable(16) %1, ptr nocapture noundef nonnull readonly align 8 dereferenceable(16) %2) local_unnamed_addr #0 align 2 {
  %4 = getelementptr inbounds i8, ptr %1, i64 8
  %5 = load i32, ptr %4, align 8, !tbaa !5
  %6 = getelementptr inbounds i8, ptr %2, i64 8
  %7 = load i32, ptr %6, align 8, !tbaa !5
  %.not = icmp eq i32 %5, %7
  br i1 %.not, label %8, label %13

8:                                                ; preds = %3
  %9 = load ptr, ptr %1, align 8, !tbaa !11
  %10 = load ptr, ptr %2, align 8, !tbaa !11
  %11 = zext i32 %5 to i64
  %bcmp = tail call i32 @bcmp(ptr %9, ptr %10, i64 %11)
  %12 = icmp eq i32 %bcmp, 0
  br label %13

13:                                               ; preds = %3, %8
  %.0 = phi i1 [ %12, %8 ], [ false, %3 ]
  ret i1 %.0
}

; Function Attrs: nofree nounwind willreturn memory(argmem: read)
declare i32 @bcmp(ptr nocapture, ptr nocapture, i64) local_unnamed_addr #1

attributes #0 = { mustprogress nofree nounwind willreturn memory(read, inaccessiblemem: none) 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 = { nofree nounwind willreturn memory(argmem: read) }

!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, !10, i64 8}
!6 = !{!"_ZTS13DexStringRepr", !7, i64 0, !10, i64 8, !10, i64 12}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!6, !7, i64 0}


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