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[X86] NFCI : Comment updation for EVEX to VEX translation. 

Reviewers: llvm-commits, jbhateja

Reviewed By: jbhateja

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D63055

llvm-svn: 362898
This commit is contained in:
Jatin Bhateja 2019-06-09 09:59:26 +00:00
parent 5f337149fa
commit 2a30aeb010
1 changed files with 3 additions and 3 deletions
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6
llvm/lib/Target/X86/X86EvexToVex.cpp
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@ -12,9 +12,9 @@
/// are encoded using the EVEX prefix and if possible replaces them by their
/// corresponding VEX encoding which is usually shorter by 2 bytes.
/// EVEX instructions may be encoded via the VEX prefix when the AVX-512
/// instruction has a corresponding AVX/AVX2 opcode and when it does not
/// use the xmm or the mask registers or xmm/ymm registers with indexes
/// higher than 15.
/// instruction has a corresponding AVX/AVX2 opcode, when vector length
/// accessed by instruction is less than 512 bits and when it does not use
// the xmm or the mask registers or xmm/ymm registers with indexes higher than 15.
/// The pass applies code reduction on the generated code for AVX-512 instrs.
//
//===----------------------------------------------------------------------===//