; LLVM IR from facebook/hermes :: API/hermes_sandbox/external (hermes_sandbox_impl_compiled_7)

; 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.w2c_hermes = type { ptr, ptr, ptr, i32, i32, i32, %struct.wasm_rt_memory_t, %struct.wasm_rt_funcref_table_t }
%struct.wasm_rt_memory_t = type { ptr, i64, i64, i64, i8 }
%struct.wasm_rt_funcref_table_t = type { ptr, i32, i32 }

; 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: noreturn
declare void @wasm_rt_trap(i32 noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local void @w2c_hermes_std0x3A0x3A_0x5F20x3A0x3Abasic_string0x3Cchar0x2C0x20std0x3A0x3A_0x5F20x3A0x3Achar_traits0x3Cchar0x3E0x2C0x20std0x3A0x3A_0x5F20x3A0x3Aallocator0x3Cchar0x3E0x3E0x20std0x3A0x3A_0x5F20x3A0x3Aoperator0x2B0x3Cchar0x2C0x20std0x3A0x3A_0x5F20x3A0x3Achar_traits0x3Cchar0x3E0x2C0x20std0x3A0x3A_0x5F20x3A0x3Aallocator0x3Cchar0x3E0x3E0x28char0x20const0x2A0x2C0x20std0x3A0x3A_0x5F20x3A0x3Abasic_string0x3Cchar0x2C0x20std0x3A0x3A_0x5F20x3A0x3Achar_traits0x3Cchar0x3E0x2C0x20std0x3A0x3A_0x5F20x3A0x3Aallocator0x3Cchar0x3E0x3E0x20const0x260x29(ptr noundef, i32 noundef, i32 noundef, i32 noundef) #2

; Function Attrs: nounwind uwtable
declare dso_local void @w2c_hermes_std0x3A0x3A_0x5F20x3A0x3A_0x5Fthrow_system_error0x28int0x2C0x20char0x20const0x2A0x29(ptr noundef, i32 noundef, i32 noundef) #2

; Function Attrs: nounwind uwtable
define dso_local i32 @w2c_hermes_std0x3A0x3A_0x5F20x3A0x3Arandom_device0x3A0x3Arandom_device0x28std0x3A0x3A_0x5F20x3A0x3Abasic_string0x3Cchar0x2C0x20std0x3A0x3A_0x5F20x3A0x3Achar_traits0x3Cchar0x3E0x2C0x20std0x3A0x3A_0x5F20x3A0x3Aallocator0x3Cchar0x3E0x3E0x20const0x260x29(ptr noundef %0, i32 noundef %1, i32 noundef %2) #2 {
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  store i32 %2, ptr %6, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #4
  store i32 0, ptr %7, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #4
  %11 = load ptr, ptr %4, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.w2c_hermes, ptr %11, i32 0, i32 3
  %13 = load i32, ptr %12, align 8, !tbaa !11
  store i32 %13, ptr %8, align 4, !tbaa !9
  store i32 16, ptr %9, align 4, !tbaa !9
  %14 = load i32, ptr %9, align 4, !tbaa !9
  %15 = load i32, ptr %8, align 4, !tbaa !9
  %16 = sub i32 %15, %14
  store i32 %16, ptr %8, align 4, !tbaa !9
  %17 = load i32, ptr %8, align 4, !tbaa !9
  store i32 %17, ptr %7, align 4, !tbaa !9
  %18 = load i32, ptr %8, align 4, !tbaa !9
  %19 = load ptr, ptr %4, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.w2c_hermes, ptr %19, i32 0, i32 3
  store i32 %18, ptr %20, align 8, !tbaa !11
  %21 = load i32, ptr %6, align 4, !tbaa !9
  store i32 %21, ptr %8, align 4, !tbaa !9
  store i32 71495, ptr %9, align 4, !tbaa !9
  %22 = load ptr, ptr %4, align 8, !tbaa !5
  %23 = load i32, ptr %8, align 4, !tbaa !9
  %24 = load i32, ptr %9, align 4, !tbaa !9
  %25 = call i32 @w2c_hermes_bool0x20std0x3A0x3A_0x5F20x3A0x3Aoperator0x210x3D0x5Babi0x3Av150070x5D0x3Cchar0x2C0x20std0x3A0x3A_0x5F20x3A0x3Achar_traits0x3Cchar0x3E0x2C0x20std0x3A0x3A_0x5F20x3A0x3Aallocator0x3Cchar0x3E0x3E0x28std0x3A0x3A_0x5F20x3A0x3Abasic_string0x3Cchar0x2C0x20std0x3A0x3A_0x5F20x3A0x3Achar_traits0x3Cchar0x3E0x2C0x20std0x3A0x3A_0x5F20x3A0x3Aallocator0x3Cchar0x3E0x3E0x20const0x260x2C0x20char0x20const0x2A0x29(ptr noundef %22, i32 noundef %23, i32 noundef %24)
  store i32 %25, ptr %8, align 4, !tbaa !9
  %26 = load i32, ptr %8, align 4, !tbaa !9
  %27 = icmp ne i32 %26, 0
  br i1 %27, label %28, label %48

28:                                               ; preds = %3
  %29 = load i32, ptr %7, align 4, !tbaa !9
  store i32 %29, ptr %8, align 4, !tbaa !9
  store i32 4, ptr %9, align 4, !tbaa !9
  %30 = load i32, ptr %9, align 4, !tbaa !9
  %31 = load i32, ptr %8, align 4, !tbaa !9
  %32 = add i32 %31, %30
  store i32 %32, ptr %8, align 4, !tbaa !9
  store i32 210291, ptr %9, align 4, !tbaa !9
  %33 = load i32, ptr %6, align 4, !tbaa !9
  store i32 %33, ptr %10, align 4, !tbaa !9
  %34 = load ptr, ptr %4, align 8, !tbaa !5
  %35 = load i32, ptr %8, align 4, !tbaa !9
  %36 = load i32, ptr %9, align 4, !tbaa !9
  %37 = load i32, ptr %10, align 4, !tbaa !9
  call void @w2c_hermes_std0x3A0x3A_0x5F20x3A0x3Abasic_string0x3Cchar0x2C0x20std0x3A0x3A_0x5F20x3A0x3Achar_traits0x3Cchar0x3E0x2C0x20std0x3A0x3A_0x5F20x3A0x3Aallocator0x3Cchar0x3E0x3E0x20std0x3A0x3A_0x5F20x3A0x3Aoperator0x2B0x3Cchar0x2C0x20std0x3A0x3A_0x5F20x3A0x3Achar_traits0x3Cchar0x3E0x2C0x20std0x3A0x3A_0x5F20x3A0x3Aallocator0x3Cchar0x3E0x3E0x28char0x20const0x2A0x2C0x20std0x3A0x3A_0x5F20x3A0x3Abasic_string0x3Cchar0x2C0x20std0x3A0x3A_0x5F20x3A0x3Achar_traits0x3Cchar0x3E0x2C0x20std0x3A0x3A_0x5F20x3A0x3Aallocator0x3Cchar0x3E0x3E0x20const0x260x29(ptr noundef %34, i32 noundef %35, i32 noundef %36, i32 noundef %37)
  store i32 44, ptr %8, align 4, !tbaa !9
  %38 = load i32, ptr %7, align 4, !tbaa !9
  store i32 %38, ptr %9, align 4, !tbaa !9
  store i32 4, ptr %10, align 4, !tbaa !9
  %39 = load i32, ptr %10, align 4, !tbaa !9
  %40 = load i32, ptr %9, align 4, !tbaa !9
  %41 = add i32 %40, %39
  store i32 %41, ptr %9, align 4, !tbaa !9
  %42 = load ptr, ptr %4, align 8, !tbaa !5
  %43 = load i32, ptr %9, align 4, !tbaa !9
  %44 = call i32 @w2c_hermes_std0x3A0x3A_0x5F20x3A0x3Abasic_string0x3Cchar0x2C0x20std0x3A0x3A_0x5F20x3A0x3Achar_traits0x3Cchar0x3E0x2C0x20std0x3A0x3A_0x5F20x3A0x3Aallocator0x3Cchar0x3E0x3E0x3A0x3Ac_str0x5Babi0x3Av150070x5D0x280x290x20const(ptr noundef %42, i32 noundef %43)
  store i32 %44, ptr %9, align 4, !tbaa !9
  %45 = load ptr, ptr %4, align 8, !tbaa !5
  %46 = load i32, ptr %8, align 4, !tbaa !9
  %47 = load i32, ptr %9, align 4, !tbaa !9
  call void @w2c_hermes_std0x3A0x3A_0x5F20x3A0x3A_0x5Fthrow_system_error0x28int0x2C0x20char0x20const0x2A0x29(ptr noundef %45, i32 noundef %46, i32 noundef %47)
  call void @wasm_rt_trap(i32 noundef 5) #5
  unreachable

48:                                               ; preds = %3
  %49 = load i32, ptr %7, align 4, !tbaa !9
  store i32 %49, ptr %8, align 4, !tbaa !9
  store i32 16, ptr %9, align 4, !tbaa !9
  %50 = load i32, ptr %9, align 4, !tbaa !9
  %51 = load i32, ptr %8, align 4, !tbaa !9
  %52 = add i32 %51, %50
  store i32 %52, ptr %8, align 4, !tbaa !9
  %53 = load i32, ptr %8, align 4, !tbaa !9
  %54 = load ptr, ptr %4, align 8, !tbaa !5
  %55 = getelementptr inbounds %struct.w2c_hermes, ptr %54, i32 0, i32 3
  store i32 %53, ptr %55, align 8, !tbaa !11
  %56 = load i32, ptr %5, align 4, !tbaa !9
  store i32 %56, ptr %8, align 4, !tbaa !9
  %57 = load i32, ptr %8, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #4
  ret i32 %57
}

declare i32 @w2c_hermes_bool0x20std0x3A0x3A_0x5F20x3A0x3Aoperator0x210x3D0x5Babi0x3Av150070x5D0x3Cchar0x2C0x20std0x3A0x3A_0x5F20x3A0x3Achar_traits0x3Cchar0x3E0x2C0x20std0x3A0x3A_0x5F20x3A0x3Aallocator0x3Cchar0x3E0x3E0x28std0x3A0x3A_0x5F20x3A0x3Abasic_string0x3Cchar0x2C0x20std0x3A0x3A_0x5F20x3A0x3Achar_traits0x3Cchar0x3E0x2C0x20std0x3A0x3A_0x5F20x3A0x3Aallocator0x3Cchar0x3E0x3E0x20const0x260x2C0x20char0x20const0x2A0x29(ptr noundef, i32 noundef, i32 noundef) #3

; Function Attrs: nounwind uwtable
declare dso_local i32 @w2c_hermes_std0x3A0x3A_0x5F20x3A0x3Abasic_string0x3Cchar0x2C0x20std0x3A0x3A_0x5F20x3A0x3Achar_traits0x3Cchar0x3E0x2C0x20std0x3A0x3A_0x5F20x3A0x3Aallocator0x3Cchar0x3E0x3E0x3A0x3Ac_str0x5Babi0x3Av150070x5D0x280x290x20const(ptr noundef, i32 noundef) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { noreturn "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 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 = { "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 = { nounwind }
attributes #5 = { noreturn }

!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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 24}
!12 = !{!"w2c_hermes", !6, i64 0, !6, i64 8, !6, i64 16, !10, i64 24, !10, i64 28, !10, i64 32, !13, i64 40, !16, i64 80}
!13 = !{!"", !6, i64 0, !14, i64 8, !14, i64 16, !14, i64 24, !15, i64 32}
!14 = !{!"long", !7, i64 0}
!15 = !{!"_Bool", !7, i64 0}
!16 = !{!"", !6, i64 0, !10, i64 8, !10, i64 12}


; 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: noreturn
declare void @wasm_rt_trap(i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local void @w2c_hermes_std0x3A0x3A_0x5F20x3A0x3Abasic_string0x3Cchar0x2C0x20std0x3A0x3A_0x5F20x3A0x3Achar_traits0x3Cchar0x3E0x2C0x20std0x3A0x3A_0x5F20x3A0x3Aallocator0x3Cchar0x3E0x3E0x20std0x3A0x3A_0x5F20x3A0x3Aoperator0x2B0x3Cchar0x2C0x20std0x3A0x3A_0x5F20x3A0x3Achar_traits0x3Cchar0x3E0x2C0x20std0x3A0x3A_0x5F20x3A0x3Aallocator0x3Cchar0x3E0x3E0x28char0x20const0x2A0x2C0x20std0x3A0x3A_0x5F20x3A0x3Abasic_string0x3Cchar0x2C0x20std0x3A0x3A_0x5F20x3A0x3Achar_traits0x3Cchar0x3E0x2C0x20std0x3A0x3A_0x5F20x3A0x3Aallocator0x3Cchar0x3E0x3E0x20const0x260x29(ptr noundef, i32 noundef, i32 noundef, i32 noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
declare dso_local void @w2c_hermes_std0x3A0x3A_0x5F20x3A0x3A_0x5Fthrow_system_error0x28int0x2C0x20char0x20const0x2A0x29(ptr noundef, i32 noundef, i32 noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @w2c_hermes_std0x3A0x3A_0x5F20x3A0x3Arandom_device0x3A0x3Arandom_device0x28std0x3A0x3A_0x5F20x3A0x3Abasic_string0x3Cchar0x2C0x20std0x3A0x3A_0x5F20x3A0x3Achar_traits0x3Cchar0x3E0x2C0x20std0x3A0x3A_0x5F20x3A0x3Aallocator0x3Cchar0x3E0x3E0x20const0x260x29(ptr noundef %0, i32 noundef returned %1, i32 noundef %2) local_unnamed_addr #1 {
  %4 = getelementptr inbounds i8, ptr %0, i64 24
  %5 = load i32, ptr %4, align 8, !tbaa !5
  %6 = add i32 %5, -16
  store i32 %6, ptr %4, align 8, !tbaa !5
  %7 = tail call i32 @w2c_hermes_bool0x20std0x3A0x3A_0x5F20x3A0x3Aoperator0x210x3D0x5Babi0x3Av150070x5D0x3Cchar0x2C0x20std0x3A0x3A_0x5F20x3A0x3Achar_traits0x3Cchar0x3E0x2C0x20std0x3A0x3A_0x5F20x3A0x3Aallocator0x3Cchar0x3E0x3E0x28std0x3A0x3A_0x5F20x3A0x3Abasic_string0x3Cchar0x2C0x20std0x3A0x3A_0x5F20x3A0x3Achar_traits0x3Cchar0x3E0x2C0x20std0x3A0x3A_0x5F20x3A0x3Aallocator0x3Cchar0x3E0x3E0x20const0x260x2C0x20char0x20const0x2A0x29(ptr noundef %0, i32 noundef %2, i32 noundef 71495) #3
  %.not = icmp eq i32 %7, 0
  br i1 %.not, label %11, label %8

8:                                                ; preds = %3
  %9 = add i32 %5, -12
  tail call void @w2c_hermes_std0x3A0x3A_0x5F20x3A0x3Abasic_string0x3Cchar0x2C0x20std0x3A0x3A_0x5F20x3A0x3Achar_traits0x3Cchar0x3E0x2C0x20std0x3A0x3A_0x5F20x3A0x3Aallocator0x3Cchar0x3E0x3E0x20std0x3A0x3A_0x5F20x3A0x3Aoperator0x2B0x3Cchar0x2C0x20std0x3A0x3A_0x5F20x3A0x3Achar_traits0x3Cchar0x3E0x2C0x20std0x3A0x3A_0x5F20x3A0x3Aallocator0x3Cchar0x3E0x3E0x28char0x20const0x2A0x2C0x20std0x3A0x3A_0x5F20x3A0x3Abasic_string0x3Cchar0x2C0x20std0x3A0x3A_0x5F20x3A0x3Achar_traits0x3Cchar0x3E0x2C0x20std0x3A0x3A_0x5F20x3A0x3Aallocator0x3Cchar0x3E0x3E0x20const0x260x29(ptr noundef nonnull %0, i32 noundef %9, i32 noundef 210291, i32 noundef %2)
  %10 = tail call i32 @w2c_hermes_std0x3A0x3A_0x5F20x3A0x3Abasic_string0x3Cchar0x2C0x20std0x3A0x3A_0x5F20x3A0x3Achar_traits0x3Cchar0x3E0x2C0x20std0x3A0x3A_0x5F20x3A0x3Aallocator0x3Cchar0x3E0x3E0x3A0x3Ac_str0x5Babi0x3Av150070x5D0x280x290x20const(ptr noundef nonnull %0, i32 noundef %9)
  tail call void @w2c_hermes_std0x3A0x3A_0x5F20x3A0x3A_0x5Fthrow_system_error0x28int0x2C0x20char0x20const0x2A0x29(ptr noundef nonnull %0, i32 noundef 44, i32 noundef %10)
  tail call void @wasm_rt_trap(i32 noundef 5) #4
  unreachable

11:                                               ; preds = %3
  store i32 %5, ptr %4, align 8, !tbaa !5
  ret i32 %1
}

declare i32 @w2c_hermes_bool0x20std0x3A0x3A_0x5F20x3A0x3Aoperator0x210x3D0x5Babi0x3Av150070x5D0x3Cchar0x2C0x20std0x3A0x3A_0x5F20x3A0x3Achar_traits0x3Cchar0x3E0x2C0x20std0x3A0x3A_0x5F20x3A0x3Aallocator0x3Cchar0x3E0x3E0x28std0x3A0x3A_0x5F20x3A0x3Abasic_string0x3Cchar0x2C0x20std0x3A0x3A_0x5F20x3A0x3Achar_traits0x3Cchar0x3E0x2C0x20std0x3A0x3A_0x5F20x3A0x3Aallocator0x3Cchar0x3E0x3E0x20const0x260x2C0x20char0x20const0x2A0x29(ptr noundef, i32 noundef, i32 noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
declare dso_local i32 @w2c_hermes_std0x3A0x3A_0x5F20x3A0x3Abasic_string0x3Cchar0x2C0x20std0x3A0x3A_0x5F20x3A0x3Achar_traits0x3Cchar0x3E0x2C0x20std0x3A0x3A_0x5F20x3A0x3Aallocator0x3Cchar0x3E0x3E0x3A0x3Ac_str0x5Babi0x3Av150070x5D0x280x290x20const(ptr noundef, i32 noundef) local_unnamed_addr #1

attributes #0 = { noreturn "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 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 = { nounwind }
attributes #4 = { noreturn 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, !10, i64 24}
!6 = !{!"w2c_hermes", !7, i64 0, !7, i64 8, !7, i64 16, !10, i64 24, !10, i64 28, !10, i64 32, !11, i64 40, !14, i64 80}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!"", !7, i64 0, !12, i64 8, !12, i64 16, !12, i64 24, !13, i64 32}
!12 = !{!"long", !8, i64 0}
!13 = !{!"_Bool", !8, i64 0}
!14 = !{!"", !7, i64 0, !10, i64 8, !10, i64 12}


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