[PATCH] AVX-512 Intrinsics for ER instructions

[Adam Nemet]

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Comment at: lib/Target/X86/X86InstrAVX512.td:5
@@ -4,2 +4,3 @@
 // individual arguments.
+// The template is also used for scalar types, in this case numelts is 1.
 class X86VectorVTInfo<int numelts, ValueType EltVT, RegisterClass rc,
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Please also mention that for scalar types we map them to the smallest (128-bit) vector type with  the same element type.  And the motivation: so that masking logic can be transferred to them.

LGTM with something like that.

http://reviews.llvm.org/D6214