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| author | Rafael Espindola <rafael.espindola@gmail.com> | 2012-06-15 18:00:24 +0000 |
|---|---|---|
| committer | Rafael Espindola <rafael.espindola@gmail.com> | 2012-06-15 18:00:24 +0000 |
| commit | 2f135d4c14d26d00deaa72fd0f36731968161e5e (patch) | |
| tree | 36ba9bdffbef6a45186b450e749b578f11a8c217 /lib/Transforms/IPO | |
| parent | d628a587b654ba737b570ee0611f70a1deb58bbc (diff) | |
Some optimizations done by globalopt are safe only for internal linkage, not
linkonce linkage. For example, it is not valid to add unnamed_addr.
This also fixes a crash in g++.dg/opt/static5.C.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158528 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/IPO')
| -rw-r--r-- | lib/Transforms/IPO/GlobalOpt.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/Transforms/IPO/GlobalOpt.cpp b/lib/Transforms/IPO/GlobalOpt.cpp index 9e3b8c2826..cca959b247 100644 --- a/lib/Transforms/IPO/GlobalOpt.cpp +++ b/lib/Transforms/IPO/GlobalOpt.cpp @@ -1729,6 +1729,9 @@ bool GlobalOpt::ProcessGlobal(GlobalVariable *GV, return true; } + if (!GV->hasLocalLinkage()) + return false; + SmallPtrSet<const PHINode*, 16> PHIUsers; GlobalStatus GS; |