[PATCH] D131427: [ARM] Do not use LOAD_STACK_GUARD with ROPI/RWPI

[Pengxuan Zheng via Phabricator via llvm-commits]

pzheng created this revision.
pzheng added reviewers: ardb, nickdesaulniers.
Herald added subscribers: hiraditya, kristof.beyls.
Herald added a project: All.
pzheng requested review of this revision.
Herald added a project: LLVM.
Herald added a subscriber: llvm-commits.

ROPI/RWPI are not supported with LOAD_STACK_GUARD currently.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D131427

Files:
  llvm/lib/Target/ARM/ARMISelLowering.cpp


Index: llvm/lib/Target/ARM/ARMISelLowering.cpp
===================================================================
--- llvm/lib/Target/ARM/ARMISelLowering.cpp
+++ llvm/lib/Target/ARM/ARMISelLowering.cpp
@@ -21106,7 +21106,10 @@
   return InsertFencesForAtomic;
 }
 
-bool ARMTargetLowering::useLoadStackGuardNode() const { return true; }
+bool ARMTargetLowering::useLoadStackGuardNode() const {
+  // ROPI/RWPI are not supported currently.
+  return !Subtarget->isROPI() && !Subtarget->isRWPI();
+}
 
 void ARMTargetLowering::insertSSPDeclarations(Module &M) const {
   if (!Subtarget->getTargetTriple().isWindowsMSVCEnvironment())


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