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Access the TargetLoweringInfo from the TargetMachine object instead of caching it. The TLI may change between functions. No functionality change.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184349 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling
2013-06-19 20:51:24 +00:00
parent 2e1dc2d265
commit ea44281d5d
10 changed files with 56 additions and 46 deletions
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16
lib/CodeGen/StackProtector.cpp
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@ -41,9 +41,11 @@ STATISTIC(NumAddrTaken, "Number of local variables that have their address"
namespace {
class StackProtector : public FunctionPass {
const TargetMachine *TM;
/// TLI - Keep a pointer of a TargetLowering to consult for determining
/// target type sizes.
const TargetLoweringBase *const TLI;
const TargetLoweringBase *TLI;
const Triple Trip;
Function *F;
@ -83,12 +85,11 @@ namespace {
bool RequiresStackProtector();
public:
static char ID; // Pass identification, replacement for typeid.
StackProtector() : FunctionPass(ID), TLI(0) {
StackProtector() : FunctionPass(ID), TM(0), TLI(0) {
initializeStackProtectorPass(*PassRegistry::getPassRegistry());
}
StackProtector(const TargetLoweringBase *tli)
: FunctionPass(ID), TLI(tli),
Trip(tli->getTargetMachine().getTargetTriple()) {
StackProtector(const TargetMachine *TM)
: FunctionPass(ID), TM(TM), TLI(0), Trip(TM->getTargetTriple()) {
initializeStackProtectorPass(*PassRegistry::getPassRegistry());
}
@ -104,14 +105,15 @@ char StackProtector::ID = 0;
INITIALIZE_PASS(StackProtector, "stack-protector",
"Insert stack protectors", false, false)
FunctionPass *llvm::createStackProtectorPass(const TargetLoweringBase *tli) {
return new StackProtector(tli);
FunctionPass *llvm::createStackProtectorPass(const TargetMachine *TM) {
return new StackProtector(TM);
}
bool StackProtector::runOnFunction(Function &Fn) {
F = &Fn;
M = F->getParent();
DT = getAnalysisIfAvailable<DominatorTree>();
TLI = TM->getTargetLowering();
if (!RequiresStackProtector()) return false;