diff options
| -rw-r--r-- | lld/ELF/LTO.cpp | 10 | ||||
| -rw-r--r-- | lld/test/ELF/lto/Inputs/linkonce.ll | 6 | ||||
| -rw-r--r-- | lld/test/ELF/lto/linkonce.ll | 17 |
3 files changed, 32 insertions, 1 deletions
diff --git a/lld/ELF/LTO.cpp b/lld/ELF/LTO.cpp index ab97079bbd8..7197227a25a 100644 --- a/lld/ELF/LTO.cpp +++ b/lld/ELF/LTO.cpp @@ -85,8 +85,16 @@ void BitcodeCompiler::add(BitcodeFile &F) { 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); } } diff --git a/lld/test/ELF/lto/Inputs/linkonce.ll b/lld/test/ELF/lto/Inputs/linkonce.ll new file mode 100644 index 00000000000..a6738b3ad71 --- /dev/null +++ b/lld/test/ELF/lto/Inputs/linkonce.ll @@ -0,0 +1,6 @@ +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 +} diff --git a/lld/test/ELF/lto/linkonce.ll b/lld/test/ELF/lto/linkonce.ll new file mode 100644 index 00000000000..b32ffeb3372 --- /dev/null +++ b/lld/test/ELF/lto/linkonce.ll @@ -0,0 +1,17 @@ +; 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() |
