[PATCH] D29056: PowerPC: Mark super regs of reserved regs reserved.

[Matthias Braun via Phabricator via llvm-commits]

MatzeB created this revision.
Herald added a subscriber: mcrosier.

When a register like https://reviews.llvm.org/diffusion/L/ is reserved, X1 should be reserved as well. This
was already done "manually" when 64bit code was enabled, however using
the markSuperRegs() function on the base register is more convenient and
allows to use the checksAllSuperRegsMarked() function even in 32bit mode
to avoid accidental breakage in the future. markSuperRegs() is used even
on registers without superregs for consistency.

And more importantly for me: It allows me to make progress in
https://reviews.llvm.org/D28881


Repository:
  rL LLVM

https://reviews.llvm.org/D29056

Files:
  lib/Target/PowerPC/PPCRegisterInfo.cpp

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