[PATCH] D70493: [StackMaps] Avoid crash when a call follows a patchpoint

Adrian Prantl via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Thu Nov 21 15:15:47 PST 2019


aprantl added inline comments.


================
Comment at: llvm/lib/CodeGen/StackMaps.cpp:264
     if ((Mask[Reg / 32] >> (Reg % 32)) & 1)
-      LiveOuts.push_back(createLiveOutReg(Reg, TRI));
+      if (TRI->isInAllocatableClass(Reg))
+        LiveOuts.push_back(createLiveOutReg(Reg, TRI));
----------------
Disclaimer: I know nothing about LLVM's StackMap implementation.

Is it safe to just ignore it here? In `CodeGen/AsmPrinter/DwarfExpression.cpp` we have code to compose a register without a Dwarf number out of sub- or super-registers.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D70493/new/

https://reviews.llvm.org/D70493





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