[PATCH] D30875: [X86] Add checking of the scale argument to scatter/gather builtins

[Craig Topper via Phabricator via llvm-commits]

craig.topper created this revision.

The only valid values for the scale immediate of scatter/gather builtins are 1, 2, 4, or 8. This patch enforces this in the frontend otherwise we generate invalid instruction encodings in the backend.


https://reviews.llvm.org/D30875

Files:
  include/clang/Basic/DiagnosticSemaKinds.td
  include/clang/Sema/Sema.h
  lib/Sema/SemaChecking.cpp
  test/Sema/builtins-x86.c

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