[all-commits] [llvm/llvm-project] 421a40: TableGen: Don't reconstruct CodeGenDAGTarget

[Matt Arsenault via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 421a40b32520f5a3764a974df44f89e7d80bc6b4
      https://github.com/llvm/llvm-project/commit/421a40b32520f5a3764a974df44f89e7d80bc6b4
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2020-05-23 (Sat, 23 May 2020)

  Changed paths:
    M llvm/utils/TableGen/InstrInfoEmitter.cpp

  Log Message:
  -----------
  TableGen: Don't reconstruct CodeGenDAGTarget

This is quite expensive and it's already available.

Just ReadLegalValueTypes is taking 4 seconds for me in a debug build
for AMDGPU's -gen-instr-info, and this was introducing a second call.