[all-commits] [llvm/llvm-project] 3ec193: [SystemZ] Don't build a PPA instruction with an i...

[Jonas Paulsson via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 3ec193fb527e697faac4ef8f30934dd7bce849a7
      https://github.com/llvm/llvm-project/commit/3ec193fb527e697faac4ef8f30934dd7bce849a7
  Author: Jonas Paulsson <paulsson at linux.vnet.ibm.com>
  Date:   2019-11-26 (Tue, 26 Nov 2019)

  Changed paths:
    M llvm/lib/Target/SystemZ/MCTargetDesc/SystemZInstPrinter.cpp
    M llvm/lib/Target/SystemZ/SystemZInstrInfo.td

  Log Message:
  -----------
  [SystemZ]  Don't build a PPA instruction with an immediate 0 operand.

The improvement in the machine verifier for operand types (D63973) discovered
a bad operand in a test using a PPA instruction. It was an immediate 0 where
a register was expected.

This patch fixes this (NFC) by now making the PPA second register operand
NoRegister instead of a zero immediate in the MIR.

Review: Ulrich Weigand
https://reviews.llvm.org/D70501