; LLVM IR from facebook/redex :: service/constant-propagation (ConstantPropagationAnalysis)

; 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"

; 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 nounwind uwtable
declare dso_local noundef zeroext i16 @_ZNK13IRInstruction6opcodeEv(ptr noundef nonnull align 8 dereferenceable(32)) #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef ptr @_ZNK13IRInstruction10get_methodEv(ptr noundef nonnull align 8 dereferenceable(32)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK12DexMethodRef9get_classEv(ptr noundef nonnull align 8 dereferenceable(26)) #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(48) ptr @_ZN19ConstantEnvironment23clear_field_environmentEv(ptr noundef nonnull align 8 dereferenceable(48)) #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZN20constant_propagation17InitFieldAnalyzer14analyze_invokeEPK7DexTypePK13IRInstructionP19ConstantEnvironment(ptr noundef %0, ptr noundef %1, ptr noundef %2) #2 align 2 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i16, align 2
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 2, ptr %7) #3
  %8 = load ptr, ptr %5, align 8, !tbaa !5
  %9 = call noundef zeroext i16 @_ZNK13IRInstruction6opcodeEv(ptr noundef nonnull align 8 dereferenceable(32) %8)
  store i16 %9, ptr %7, align 2, !tbaa !9
  %10 = load i16, ptr %7, align 2, !tbaa !9
  %11 = zext i16 %10 to i32
  %12 = icmp eq i32 %11, 87
  br i1 %12, label %17, label %13

13:                                               ; preds = %3
  %14 = load i16, ptr %7, align 2, !tbaa !9
  %15 = zext i16 %14 to i32
  %16 = icmp eq i32 %15, 89
  br i1 %16, label %17, label %26

17:                                               ; preds = %13, %3
  %18 = load ptr, ptr %4, align 8, !tbaa !5
  %19 = load ptr, ptr %5, align 8, !tbaa !5
  %20 = call noundef ptr @_ZNK13IRInstruction10get_methodEv(ptr noundef nonnull align 8 dereferenceable(32) %19)
  %21 = call noundef ptr @_ZNK12DexMethodRef9get_classEv(ptr noundef nonnull align 8 dereferenceable(26) %20)
  %22 = icmp eq ptr %18, %21
  br i1 %22, label %23, label %26

23:                                               ; preds = %17
  %24 = load ptr, ptr %6, align 8, !tbaa !5
  %25 = call noundef nonnull align 8 dereferenceable(48) ptr @_ZN19ConstantEnvironment23clear_field_environmentEv(ptr noundef nonnull align 8 dereferenceable(48) %24)
  br label %26

26:                                               ; preds = %23, %17, %13
  call void @llvm.lifetime.end.p0(i64 2, ptr %7) #3
  ret i1 false
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 #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 = !{!"_ZTS8IROpcode", !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 nounwind uwtable
declare dso_local noundef zeroext i16 @_ZNK13IRInstruction6opcodeEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef ptr @_ZNK13IRInstruction10get_methodEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK12DexMethodRef9get_classEv(ptr noundef nonnull align 8 dereferenceable(26)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(48) ptr @_ZN19ConstantEnvironment23clear_field_environmentEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZN20constant_propagation17InitFieldAnalyzer14analyze_invokeEPK7DexTypePK13IRInstructionP19ConstantEnvironment(ptr noundef readnone %0, ptr noundef nonnull %1, ptr noundef %2) local_unnamed_addr #1 align 2 {
  %4 = tail call noundef zeroext i16 @_ZNK13IRInstruction6opcodeEv(ptr noundef nonnull align 8 dereferenceable(32) %1)
  switch i16 %4, label %11 [
    i16 89, label %5
    i16 87, label %5
  ]

5:                                                ; preds = %3, %3
  %6 = tail call noundef ptr @_ZNK13IRInstruction10get_methodEv(ptr noundef nonnull align 8 dereferenceable(32) %1)
  %7 = tail call noundef ptr @_ZNK12DexMethodRef9get_classEv(ptr noundef nonnull align 8 dereferenceable(26) %6)
  %8 = icmp eq ptr %7, %0
  br i1 %8, label %9, label %11

9:                                                ; preds = %5
  %10 = tail call noundef nonnull align 8 dereferenceable(48) ptr @_ZN19ConstantEnvironment23clear_field_environmentEv(ptr noundef nonnull align 8 dereferenceable(48) %2)
  br label %11

11:                                               ; preds = %3, %9, %5
  ret i1 false
}

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 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)"}


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