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implement a new magic global "llvm.compiler.used" which is like llvm.used, but

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doesn't cause ".no_dead_strip" to be emitted on darwin.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76399 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2009-07-20 06:14:25 +00:00
parent ba8dc03935
commit 401e10c4fb
8 changed files with 63 additions and 32 deletions
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lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+2 -2
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@@ -466,13 +466,13 @@ void AsmPrinter::printPICJumpTableEntry(const MachineJumpTableInfo *MJTI,
/// special global used by LLVM. If so, emit it and return true, otherwise
/// do nothing and return false.
bool AsmPrinter::EmitSpecialLLVMGlobal(const GlobalVariable *GV) {
if (GV->getName() == "llvm.used") {
if (GV->isName("llvm.used")) {
if (TAI->getUsedDirective() != 0) // No need to emit this at all.
EmitLLVMUsedList(GV->getInitializer());
return true;
}
// Ignore debug and non-emitted data.
// Ignore debug and non-emitted data. This handles llvm.compiler.used.
if (GV->getSection() == "llvm.metadata" ||
GV->hasAvailableExternallyLinkage())
return true;