[PATCH] D61862: Use an offset from TOS for idempotent rmw locked op lowering

[Craig Topper via Phabricator via llvm-commits]

craig.topper added inline comments.


================
Comment at: lib/Target/X86/X86ISelLowering.cpp:26282
+  auto &MF = DAG.getMachineFunction();
+  auto &MFL = *Subtarget.getFrameLowering();
+  const unsigned SPOffset = MFL.has128ByteRedZone(MF) ? -64 : 0;
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I think the usual name here would be either TFI or TFL. The type returned is a derived class of TargetFrameLowering.


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D61862/new/

https://reviews.llvm.org/D61862