[PATCH] D36795: [SystemZ] Increase number of LOCRs emitted by passing regalloc hints

[Ulrich Weigand via Phabricator via llvm-commits]

uweigand added inline comments.


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Comment at: lib/Target/SystemZ/SystemZRegisterInfo.cpp:38
+    return &SystemZ::GR32BitRegClass;
+  if (RC == &SystemZ::GRH32BitRegClass ||
+      MO.getSubReg() == SystemZ::subreg_h32)
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jonpa wrote:
> uweigand wrote:
> > Should this also use hasSubClassEq, just for symmetry with the case above?
> I take it that while GR32BitRegClass has the ADDR32Bit sub class, which GRH32BitRegClass does not, you prefer to keep this general for the future and so on?
Yes, exactly ... just in case there will be subclasses later.


https://reviews.llvm.org/D36795