[all-commits] [llvm/llvm-project] 297e92: [SelectionDAGBuilder] Bugfix in visitInlineAsm()

[Jonas Paulsson via All-commits]

  Branch: refs/heads/release/13.x
  Home:   https://github.com/llvm/llvm-project
  Commit: 297e9237db531a94ce024934c703a10656b4f781
      https://github.com/llvm/llvm-project/commit/297e9237db531a94ce024934c703a10656b4f781
  Author: Jonas Paulsson <paulsson at linux.vnet.ibm.com>
  Date:   2021-09-08 (Wed, 08 Sep 2021)

  Changed paths:
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
    A llvm/test/CodeGen/X86/20210831-inlineasm.ll

  Log Message:
  -----------
  [SelectionDAGBuilder]  Bugfix in visitInlineAsm()

In case of a virtual register tied to a phys-def, the register class needs to
be computed. Make sure that this works generally also with fast regalloc by
using TLI.getRegClassFor() whenever possible, and make only the case of
'Untyped' use getMinimalPhysRegClass().

Fixes https://bugs.llvm.org/show_bug.cgi?id=51699.

Review: Ulrich Weigand
Differential Revision: https://reviews.llvm.org/D109291

(cherry picked from commit 118997d8e931dcb4c6e972611a7e4febcc33a061)