forked from OSchip/llvm-project
22 lines
739 B
LLVM
22 lines
739 B
LLVM
; RUN: llc < %s --mtriple=wasm32-unknown-unknown -asm-verbose=false -mattr=+reference-types | FileCheck %s
|
|
|
|
%extern = type opaque
|
|
%externref = type %extern addrspace(10)* ;; addrspace 10 is nonintegral
|
|
|
|
@externref_global = local_unnamed_addr addrspace(1) global %externref undef
|
|
|
|
define %extern @return_extern_undef() {
|
|
; Returning a ref.null or an uninitialized externref would make
|
|
; more sense if the return type would be %externref. However, in
|
|
; this case this is an %extern value, which really is an opaque
|
|
; type and should never really happen.
|
|
ret %extern undef
|
|
}
|
|
|
|
; CHECK-LABEL: return_extern_undef:
|
|
; CHECK-NEXT: functype return_extern_undef () -> ()
|
|
; CHECK-NEXT: end_function
|
|
|
|
; CHECK: .globl externref_global
|
|
|