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Do not mark EH tables no-dead-strip unless the

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associated function is so marked.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46088 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dale Johannesen
2008-01-16 19:59:28 +00:00
parent b8b92216f1
commit 48ae02fe62
3 changed files with 50 additions and 13 deletions
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15
lib/CodeGen/MachineModuleInfo.cpp
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@ -1552,6 +1552,21 @@ bool MachineModuleInfo::Verify(Value *V) {
///
void MachineModuleInfo::AnalyzeModule(Module &M) {
SetupCompileUnits(M);
// Insert functions in the llvm.used array into UsedFunctions.
GlobalVariable *GV = M.getGlobalVariable("llvm.used");
if (!GV || !GV->hasInitializer()) return;
// Should be an array of 'i8*'.
ConstantArray *InitList = dyn_cast<ConstantArray>(GV->getInitializer());
if (InitList == 0) return;
for (unsigned i = 0, e = InitList->getNumOperands(); i != e; ++i) {
if (ConstantExpr *CE = dyn_cast<ConstantExpr>(InitList->getOperand(i)))
if (CE->getOpcode() == Instruction::BitCast)
if (Function *F = dyn_cast<Function>(CE->getOperand(0)))
UsedFunctions.insert(F);
}
}
/// needsFrameInfo - Returns true if we need to gather callee-saved register