diff options
Diffstat (limited to 'llvm/lib/CodeGen/GlobalMerge.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/GlobalMerge.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/GlobalMerge.cpp b/llvm/lib/CodeGen/GlobalMerge.cpp index 23812a2a234..3603f9b7ed9 100644 --- a/llvm/lib/CodeGen/GlobalMerge.cpp +++ b/llvm/lib/CodeGen/GlobalMerge.cpp @@ -556,6 +556,10 @@ bool GlobalMerge::doInitialization(Module &M) { if (GV.isDeclaration() || GV.isThreadLocal() || GV.hasSection()) continue; + // It's not safe to merge globals that may be preempted + if (TM && !TM->shouldAssumeDSOLocal(M, &GV)) + continue; + if (!(MergeExternalGlobals && GV.hasExternalLinkage()) && !GV.hasInternalLinkage()) continue; |
