indirect-hidden.ll 1.14 KB
; RUN: llc -mtriple=i686-apple-macosx -o - %s | FileCheck %s

; x86 doesn't normally use indirect symbols, particularly hidden ones, but it
; can be tricked into it for exception-handling typeids.

@hidden_typeid = external hidden constant i8*
@normal_typeid = external constant i8*

declare void @throws()

define void @get_indirect_hidden() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
  invoke void @throws() to label %end unwind label %lpad
lpad:
  %tmp = landingpad { i8*, i32 }
          catch i8* bitcast (i8** @hidden_typeid to i8*)
  br label %end

end:
  ret void
}

define void @get_indirect() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
  invoke void @throws() to label %end unwind label %lpad
lpad:
  %tmp = landingpad { i8*, i32 }
          catch i8* bitcast (i8** @normal_typeid to i8*)
  br label %end

end:
  ret void
}

declare i32 @__gxx_personality_v0(...)

; CHECK: .section __IMPORT,__pointers,non_lazy_symbol_pointers

; CHECK-NOT: __DATA,__data
; CHECK: .indirect_symbol _hidden_typeid
; CHECK-NEXT: .long 0

; CHECK-NOT: __DATA,__data
; CHECK: .indirect_symbol _normal_typeid
; CHECK-NEXT: .long 0