[PATCH] D95458: [PowerPC] Exploit xxsplti32dx (constant materialization) for scalars

[Albion Fung via Phabricator via llvm-commits]

Conanap created this revision.
Conanap added reviewers: nemanjai, saghir, PowerPC.
Conanap added projects: LLVM, clang, PowerPC.
Herald added a subscriber: kbarton.
Conanap requested review of this revision.

Previously related differential (exploit xxsplti32dx for vectors) here: https://reviews.llvm.org/D90173

This patch exploits the xxsplti32dx instruction available on Power10 in place of constant pool loads where xxspltidp would not be able to, usually because the immediate cannot fit into 32 bits.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D95458

Files:
  llvm/lib/Target/PowerPC/PPCISelLowering.cpp
  llvm/lib/Target/PowerPC/PPCISelLowering.h
  llvm/lib/Target/PowerPC/PPCInstrInfo.td
  llvm/lib/Target/PowerPC/PPCInstrPrefix.td
  llvm/test/CodeGen/PowerPC/constant-pool.ll
  llvm/test/CodeGen/PowerPC/p10-splatImm-CPload-pcrel.ll
  llvm/test/CodeGen/PowerPC/pcrel-call-linkage-leaf.ll
  llvm/test/CodeGen/PowerPC/pcrel-linkeropt.ll
  llvm/test/CodeGen/PowerPC/pcrel.ll

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