[PATCH] D38128: Handle COPYs of physregs better (regalloc hints)

[Quentin Colombet via Phabricator via llvm-commits]

qcolombet accepted this revision.
qcolombet added a comment.
This revision is now accepted and ready to land.

LGTM for the generic part.



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Comment at: include/llvm/CodeGen/MachineRegisterInfo.h:755
+  /// register allocation hints for VReg.
+  const std::pair<unsigned, SmallVector<unsigned, 4>>
+  &getRegAllocationHints(unsigned VReg) const {
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Could we use SmallVectorImpl to not leak the size of the vector?


https://reviews.llvm.org/D38128