[NFC] fix diagnostic
authorJF Bastien <jfbastien@apple.com>
Wed, 1 Jul 2020 04:49:01 +0000 (21:49 -0700)
committerJF Bastien <jfbastien@apple.com>
Wed, 1 Jul 2020 04:49:01 +0000 (21:49 -0700)
commitca134e4c525babf0c414c78fb53d648fbee364d8
tree77bb7a9fd7596bc777499f0d67b3ef5ccbd4b567
parent73e575a88e27c6ed8bdb1140893260aaf5f9dc7a
[NFC] fix diagnostic

It's pretty silly to diagnose on a scalar copy but the build does that:
  loop variable 'SibReg' of type 'const llvm::Register' creates a copy from type 'const llvm::Register' [-Wrange-loop-analysis]
llvm/lib/CodeGen/InlineSpiller.cpp