[all-commits] [llvm/llvm-project] 918554: [AArch64][AsmParser] Fix debug output in a few ins...

[Cullen Rhodes via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 91855483f3895ced7c821363707c9887dfa69a0e
      https://github.com/llvm/llvm-project/commit/91855483f3895ced7c821363707c9887dfa69a0e
  Author: Cullen Rhodes <cullen.rhodes at arm.com>
  Date:   2020-06-09 (Tue, 09 Jun 2020)

  Changed paths:
    M llvm/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp

  Log Message:
  -----------
  [AArch64][AsmParser] Fix debug output in a few instructions

Summary:
In the parsing of BTIHint, PSBHint and Prefetch the identifier token
should be lexed after creating the operand, otherwise the StringRef is
moved before being copied and the debug output is incorrect.

Prefetch example:

    $ echo "prfm   pldl1keep, [x2]" | ./bin/llvm-mc \
        -triple aarch64-none-linux-gnu -show-encoding -debug

    Before:

      Matching formal operand class MCK_Prefetch against actual operand at
      index 1 (<prfop ,>): match success using generic matcher

    After:

      Matching formal operand class MCK_Prefetch against actual operand at
      index 1 (<prfop pldl1keep>): match success using generic matcher

Reviewed By: david-arm

Differential Revision: https://reviews.llvm.org/D80620