blob: 9a42c2bb5dbf70101a1144b37744393da9c52851 [file] [log] [blame]
; RUN: llvm-as %s -o %t.o
; RUN: wasm-ld %t.o -o %t.wasm
; RUN: obj2yaml %t.wasm | FileCheck %s
; Test that undefined weak external functions are handled in the LTO case
; We had a bug where stub function generation was failing because functions
; that are in bitcode (pre-LTO) don't have signatures assigned.
target datalayout = "e-m:e-p:32:32-p10:8:8-p20:8:8-i64:64-n32:64-S128"
target triple = "wasm32-unknown-unknown"
declare extern_weak i32 @foo()
declare extern_weak i32 @bar()
; The reference to bar here will exist in the LTO file, but the LTO process will
; remove it, so it will never be referenced by an normal object file, and
; therefore never have a signature.
define void @unused_function() #0 {
%call2 = call i32 @bar()
ret void
define void @_start() #0 {
%call2 = call i32 @foo()
ret void
; CHECK: Name: 'undefined_weak:foo'