[all-commits] [llvm/llvm-project] 8262e9: [ARM] Fix PR 47980: Use constrainRegClass during f...

[pirama-arumuga-nainar via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 8262e94a6da77e176dbd13d9eadce76da74489d4
      https://github.com/llvm/llvm-project/commit/8262e94a6da77e176dbd13d9eadce76da74489d4
  Author: Pirama Arumuga Nainar <pirama at google.com>
  Date:   2020-11-10 (Tue, 10 Nov 2020)

  Changed paths:
    M llvm/lib/Target/ARM/ARMBaseInstrInfo.cpp
    A llvm/test/CodeGen/ARM/peephole-callee-save-regalloc.mir

  Log Message:
  -----------
  [ARM] Fix PR 47980: Use constrainRegClass during foldImmediate opt.

Previously we used setRegClass to rgpr, which may expand the register
domain if the result was already in a constrained class (tcgpr in the
above PR).

Differential Revision: https://reviews.llvm.org/D91192