================
@@ -1246,32 +1244,16 @@ Value
*HWAddressSanitizer::getHwasanThreadSlotPtr(IRBuilder<> &IRB, Type *Ty) {
return nullptr;
}
-Value *HWAddressSanitizer::getPC(IRBuilder<> &IRB) {
- if (TargetTriple.getArch() == Triple::aarch64)
- return readRegister(IRB, "pc");
- return IRB.CreatePtrToInt(IRB.GetInsertBlock()->getParent(), IntptrTy);
-}
-
-Value *HWAddressSanitizer::getFP(IRBuilder<> &IRB) {
- if (!CachedSP) {
- // FIXME: use addressofreturnaddress (but implement it in aarch64 backend
- // first).
- Function *F = IRB.GetInsertBlock()->getParent();
- Module *M = F->getParent();
- auto *GetStackPointerFn = Intrinsic::getDeclaration(
- M, Intrinsic::frameaddress,
- IRB.getPtrTy(M->getDataLayout().getAllocaAddrSpace()));
- CachedSP = IRB.CreatePtrToInt(
- IRB.CreateCall(GetStackPointerFn, {Constant::getNullValue(Int32Ty)}),
- IntptrTy);
- }
+Value *HWAddressSanitizer::getCachedSP(IRBuilder<> &IRB) {
+ if (!CachedSP)
+ CachedSP = memtag::getSP(IRB);
----------------
vitalybuka wrote:
It should be getFP - frameaddress
getSP is sponentry/addressofreturnaddress or something like this
https://github.com/llvm/llvm-project/pull/84404
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