Similarly to how we do with linkonce_odr symbols already, but
change their linkage to weak.
llvm-svn: 264181
if (!BitcodeFile::shouldSkip(Sym)) {
if (SymbolBody *B = Bodies[BodyIndex++])
if (&B->repl() == B && isa<DefinedBitcode>(B)) {
- if (GV->getLinkage() == llvm::GlobalValue::LinkOnceODRLinkage)
+ switch (GV->getLinkage()) {
+ default:
+ break;
+ case llvm::GlobalValue::LinkOnceAnyLinkage:
+ GV->setLinkage(GlobalValue::WeakAnyLinkage);
+ break;
+ case llvm::GlobalValue::LinkOnceODRLinkage:
GV->setLinkage(GlobalValue::WeakODRLinkage);
+ break;
+ }
Keep.push_back(GV);
}
}
--- /dev/null
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+define linkonce void @f() {
+ ret void
+}
--- /dev/null
+; REQUIRES: x86
+; RUN: llvm-as %p/Inputs/linkonce.ll -o %t1.o
+; RUN: llc %s -o %t2.o -filetype=obj
+; RUN: ld.lld %t1.o %t2.o -o %t.so -shared -save-temps
+; RUN: llvm-dis %t.so.lto.opt.bc -o - | FileCheck %s
+
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+declare void @f()
+
+define void @g() {
+ call void @f()
+ ret void
+}
+
+; Be sure that 'f' is kept and has weak linkage.
+; CHECK: define weak void @f()