[PATCH] D30310: [NVPTX] Fixed invalid use of immediate arguments for .f16x2 instructions.

[Artem Belevich via Phabricator via llvm-commits]

tra created this revision.

This is a minor change on top of https://reviews.llvm.org/D30057 which fixes a bug that got fixed after https://reviews.llvm.org/D30057 was approved.

Previously (in https://reviews.llvm.org/D30057) ReplaceUses() resulted in a constant being passed as an
immediate argument to an .f16x2 instruction which does not accept
them. It also triggers a crash in ptxas.

This patch moves handling of constant v2f16 BUILD_VECTOR to lowering phase
which allows instruction selection to work correctly.


https://reviews.llvm.org/D30310

Files:
  lib/Target/NVPTX/NVPTXISelDAGToDAG.cpp
  lib/Target/NVPTX/NVPTXISelDAGToDAG.h
  lib/Target/NVPTX/NVPTXISelLowering.cpp
  lib/Target/NVPTX/NVPTXISelLowering.h
  test/CodeGen/NVPTX/f16x2-instructions.ll

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