[all-commits] [llvm/llvm-project] 3de970: [RISCV][NFC] Precommit test cases for D120963.

[Zakk Chen via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 3de970718c92a19ecac11e0150a8b2c7451b35eb
      https://github.com/llvm/llvm-project/commit/3de970718c92a19ecac11e0150a8b2c7451b35eb
  Author: Zakk Chen <zakk.chen at sifive.com>
  Date:   2022-03-05 (Sat, 05 Mar 2022)

  Changed paths:
    M llvm/test/CodeGen/RISCV/rvv/vmv.s.x-rv64.ll

  Log Message:
  -----------
  [RISCV][NFC] Precommit test cases for D120963.


  Commit: 33b61c567883f81c97c26ccdb2afe405e4de794c
      https://github.com/llvm/llvm-project/commit/33b61c567883f81c97c26ccdb2afe405e4de794c
  Author: Zakk Chen <zakk.chen at sifive.com>
  Date:   2022-03-05 (Sat, 05 Mar 2022)

  Changed paths:
    M llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp
    M llvm/test/CodeGen/RISCV/rvv/vmv.s.x-rv64.ll

  Log Message:
  -----------
  [RISCV] Fix incorrect codegen introduced by D119688.

We should not emit a tail agnostic vlse for a tail undisturbed vmv.s.x

In D119688:
-    if (IsScalarMove && !Node->getOperand(0).isUndef())
+    bool HasPassthruOperand = Node->getOpcode() != ISD::SPLAT_VECTOR;
+    if (HasPassthruOperand && !IsScalarMove &&
!Node->getOperand(0).isUndef())
       break;

The IsScalarMove check in the if statement had been changed.

Differential Revision: https://reviews.llvm.org/D120963


Compare: https://github.com/llvm/llvm-project/compare/fda7d029e52d...33b61c567883