diff options
| -rw-r--r-- | lib/Transforms/IPO/Internalize.cpp | 12 | ||||
| -rw-r--r-- | test/Transforms/Internalize/2009-01-05-InternalizeAliases.ll | 10 |
2 files changed, 22 insertions, 0 deletions
diff --git a/lib/Transforms/IPO/Internalize.cpp b/lib/Transforms/IPO/Internalize.cpp index 5e325ec82d..b6d89aafd0 100644 --- a/lib/Transforms/IPO/Internalize.cpp +++ b/lib/Transforms/IPO/Internalize.cpp @@ -26,6 +26,7 @@ #include <set> using namespace llvm; +STATISTIC(NumAliases , "Number of aliases internalized"); STATISTIC(NumFunctions, "Number of functions internalized"); STATISTIC(NumGlobals , "Number of global vars internalized"); @@ -158,6 +159,17 @@ bool InternalizePass::runOnModule(Module &M) { DOUT << "Internalized gvar " << I->getName() << "\n"; } + // Mark all aliases that are not in the api as internal as well. + for (Module::alias_iterator I = M.alias_begin(), E = M.alias_end(); + I != E; ++I) + if (!I->isDeclaration() && !I->hasInternalLinkage() && + !ExternalNames.count(I->getName())) { + I->setLinkage(GlobalValue::InternalLinkage); + Changed = true; + ++NumAliases; + DOUT << "Internalized alias " << I->getName() << "\n"; + } + return Changed; } diff --git a/test/Transforms/Internalize/2009-01-05-InternalizeAliases.ll b/test/Transforms/Internalize/2009-01-05-InternalizeAliases.ll new file mode 100644 index 0000000000..c0041ac2d7 --- /dev/null +++ b/test/Transforms/Internalize/2009-01-05-InternalizeAliases.ll @@ -0,0 +1,10 @@ +; RUN: llvm-as < %s | opt -internalize | llvm-dis | grep internal | count 3 + +@A = global i32 0 +@B = alias i32* @A +@C = alias i32* @B + +define i32 @main() { + %tmp = load i32* @C + ret i32 %tmp +} |