[PATCH] D23301: [mips] Correct tail call pattern for MIPSR6

[Simon Dardis via llvm-commits]

sdardis created this revision.
sdardis added reviewers: dsanders, vkalintiris.
sdardis added a subscriber: llvm-commits.
sdardis set the repository for this revision to rL LLVM.
Herald added subscribers: sdardis, dsanders.

r277708 enabled tails calls for MIPS but used the 'jr' instruction when the
jump target was held in a register. For MIPSR6, 'jalr $zero, $reg' should
have been used. Additionally, add missing patterns for external and global
symbols for tail calls.

Repository:
  rL LLVM

https://reviews.llvm.org/D23301

Files:
  lib/Target/Mips/MicroMipsInstrInfo.td
  lib/Target/Mips/Mips32r6InstrInfo.td
  lib/Target/Mips/Mips64InstrInfo.td
  lib/Target/Mips/Mips64r6InstrInfo.td
  lib/Target/Mips/MipsInstrInfo.td
  test/CodeGen/Mips/tailcall.ll
  test/CodeGen/Mips/tailcall/tailcall-wrong-isa.ll
  test/CodeGen/Mips/tailcall/tailcall.ll

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