; LLVM IR from facebook/redex :: service/regalloc (Interference)

; 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

declare noundef zeroext i16 @_ZN6opcode13to_dex_opcodeE8IROpcode(i16 noundef zeroext) #2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN6opcode9is_a_moveE8IROpcode(i16 noundef zeroext) #3

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN6opcode13is_an_int_litE8IROpcode(i16 noundef zeroext) #3

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_ZNK13IRInstruction11get_literalEv(ptr noundef nonnull align 8 dereferenceable(32)) #4 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef i64 @_ZN8regalloc12interference13src_bit_widthEPK13IRInstructioni(ptr noundef %0, i32 noundef %1) #4 {
  %3 = alloca i64, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i16, align 2
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 2, ptr %6) #5
  %8 = load ptr, ptr %4, align 8, !tbaa !5
  %9 = call noundef zeroext i16 @_ZNK13IRInstruction6opcodeEv(ptr noundef nonnull align 8 dereferenceable(32) %8)
  store i16 %9, ptr %6, align 2, !tbaa !11
  %10 = load i16, ptr %6, align 2, !tbaa !11
  %11 = call noundef zeroext i1 @_ZN6opcode9is_a_moveE8IROpcode(i16 noundef zeroext %10)
  br i1 %11, label %12, label %13

12:                                               ; preds = %2
  store i64 16, ptr %3, align 8
  store i32 1, ptr %7, align 4
  br label %34

13:                                               ; preds = %2
  %14 = load i16, ptr %6, align 2, !tbaa !11
  %15 = call noundef zeroext i1 @_ZN6opcode13is_an_int_litE8IROpcode(i16 noundef zeroext %14)
  br i1 %15, label %16, label %27

16:                                               ; preds = %13
  %17 = load ptr, ptr %4, align 8, !tbaa !5
  %18 = call noundef i64 @_ZNK13IRInstruction11get_literalEv(ptr noundef nonnull align 8 dereferenceable(32) %17)
  %19 = trunc i64 %18 to i8
  %20 = sext i8 %19 to i64
  %21 = load ptr, ptr %4, align 8, !tbaa !5
  %22 = call noundef i64 @_ZNK13IRInstruction11get_literalEv(ptr noundef nonnull align 8 dereferenceable(32) %21)
  %23 = icmp eq i64 %20, %22
  %24 = zext i1 %23 to i64
  %25 = select i1 %23, i32 8, i32 4
  %26 = sext i32 %25 to i64
  store i64 %26, ptr %3, align 8
  store i32 1, ptr %7, align 4
  br label %34

27:                                               ; preds = %13
  %28 = load i16, ptr %6, align 2, !tbaa !11
  %29 = call noundef zeroext i16 @_ZN6opcode13to_dex_opcodeE8IROpcode(i16 noundef zeroext %28)
  %30 = load i32, ptr %5, align 4, !tbaa !9
  %31 = trunc i32 %30 to i16
  %32 = call noundef zeroext i8 @_ZN10dex_opcode13src_bit_widthE9DexOpcodet(i16 noundef zeroext %29, i16 noundef zeroext %31)
  %33 = zext i8 %32 to i64
  store i64 %33, ptr %3, align 8
  store i32 1, ptr %7, align 4
  br label %34

34:                                               ; preds = %27, %16, %12
  call void @llvm.lifetime.end.p0(i64 2, ptr %6) #5
  %35 = load i64, ptr %3, align 8
  ret i64 %35
}

declare noundef zeroext i8 @_ZN10dex_opcode13src_bit_widthE9DexOpcodet(i16 noundef zeroext, i16 noundef zeroext) #2

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 = { "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 = { inlinehint 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 #4 = { 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 #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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"_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

declare noundef zeroext i16 @_ZN6opcode13to_dex_opcodeE8IROpcode(i16 noundef zeroext) local_unnamed_addr #1

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN6opcode9is_a_moveE8IROpcode(i16 noundef zeroext) local_unnamed_addr #2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN6opcode13is_an_int_litE8IROpcode(i16 noundef zeroext) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_ZNK13IRInstruction11get_literalEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef range(i64 0, 256) i64 @_ZN8regalloc12interference13src_bit_widthEPK13IRInstructioni(ptr noundef nonnull %0, i32 noundef %1) local_unnamed_addr #3 {
  %3 = tail call noundef zeroext i16 @_ZNK13IRInstruction6opcodeEv(ptr noundef nonnull align 8 dereferenceable(32) %0)
  %4 = tail call noundef zeroext i1 @_ZN6opcode9is_a_moveE8IROpcode(i16 noundef zeroext %3)
  br i1 %4, label %18, label %5

5:                                                ; preds = %2
  %6 = tail call noundef zeroext i1 @_ZN6opcode13is_an_int_litE8IROpcode(i16 noundef zeroext %3)
  br i1 %6, label %7, label %13

7:                                                ; preds = %5
  %8 = tail call noundef i64 @_ZNK13IRInstruction11get_literalEv(ptr noundef nonnull align 8 dereferenceable(32) %0)
  %sext = shl i64 %8, 56
  %9 = ashr exact i64 %sext, 56
  %10 = tail call noundef i64 @_ZNK13IRInstruction11get_literalEv(ptr noundef nonnull align 8 dereferenceable(32) %0)
  %11 = icmp eq i64 %9, %10
  %12 = select i1 %11, i64 8, i64 4
  br label %18

13:                                               ; preds = %5
  %14 = tail call noundef zeroext i16 @_ZN6opcode13to_dex_opcodeE8IROpcode(i16 noundef zeroext %3)
  %15 = trunc i32 %1 to i16
  %16 = tail call noundef zeroext i8 @_ZN10dex_opcode13src_bit_widthE9DexOpcodet(i16 noundef zeroext %14, i16 noundef zeroext %15)
  %17 = zext i8 %16 to i64
  br label %18

18:                                               ; preds = %2, %13, %7
  %.0 = phi i64 [ %12, %7 ], [ %17, %13 ], [ 16, %2 ]
  ret i64 %.0
}

declare noundef zeroext i8 @_ZN10dex_opcode13src_bit_widthE9DexOpcodet(i16 noundef zeroext, i16 noundef zeroext) local_unnamed_addr #1

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 = { "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 = { inlinehint 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 = { 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,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass