[PATCH] D60425: [GlobalISel][AArch64] Allow CallLowering to handle types

[Amara Emerson via Phabricator via llvm-commits]

aemerson created this revision.
aemerson added reviewers: paquette, arsenm.
aemerson added a project: LLVM.
Herald added subscribers: Petar.Avramovic, volkan, hiraditya, kristof.beyls, javed.absar, rovka, wdng.

Allow CallLowering to handle types which are normally required to be passed as different register types. E.g. <2 x i16> may need to be passed as a larger <2 x i32> type, so formal arg lowering needs to be able truncate it back. Likewise, when dealing with returns of these types, they need to be widened in the appropriate way back


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D60425

Files:
  llvm/include/llvm/CodeGen/GlobalISel/CallLowering.h
  llvm/lib/CodeGen/GlobalISel/CallLowering.cpp
  llvm/lib/Target/AArch64/AArch64CallLowering.cpp
  llvm/lib/Target/ARM/ARMCallLowering.cpp
  llvm/lib/Target/X86/X86CallLowering.cpp
  llvm/test/CodeGen/AArch64/GlobalISel/ret-vec-promote.ll
  llvm/test/CodeGen/AArch64/GlobalISel/vec-s16-param.ll
  llvm/test/CodeGen/ARM/GlobalISel/arm-unsupported.ll

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