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Add a module flags accessor method which returns the flags in a vector.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150623 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling
2012-02-15 22:34:20 +00:00
parent 01d53ec176
commit f20f281368
2 changed files with 26 additions and 0 deletions
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15
lib/VMCore/Module.cpp
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@@ -328,6 +328,21 @@ void Module::eraseNamedMetadata(NamedMDNode *NMD) {
NamedMDList.erase(NMD);
}
/// getModuleFlagsMetadata - Returns the module flags in the provided vector.
void Module::
getModuleFlagsMetadata(SmallVectorImpl<ModuleFlagEntry> &Flags) const {
const NamedMDNode *ModFlags = getModuleFlagsMetadata();
if (!ModFlags) return;
for (unsigned i = 0, e = ModFlags->getNumOperands(); i != e; ++i) {
MDNode *Flag = ModFlags->getOperand(i);
ConstantInt *Behavior = cast<ConstantInt>(Flag->getOperand(0));
MDString *Key = cast<MDString>(Flag->getOperand(1));
Value *Val = Flag->getOperand(2);
Flags.push_back(ModuleFlagEntry(Behavior->getZExtValue(), Key, Val));
}
}
/// getModuleFlagsMetadata - Returns the NamedMDNode in the module that
/// represents module-level flags. This method returns null if there are no
/// module-level flags.