[PATCH] D76299: [ARM,CDE] Implement CDE unpredicated Q-register intrinsics

[Mikhail Maltsev via Phabricator via cfe-commits]

miyuki created this revision.
miyuki added reviewers: simon_tatham, MarkMurrayARM, dmgreen, ostannard.
Herald added subscribers: cfe-commits, danielkiss, hiraditya, kristof.beyls.
Herald added a project: clang.
miyuki added a parent revision: D76298: [ARM,CDE] Implement CDE S and D-register intrinsics.

This patch implements the following intrinsics:

  uint8x16_t __arm_vcx1q_u8 (int coproc, uint32_t imm);
  T __arm_vcx1qa(int coproc, T acc, uint32_t imm);
  T __arm_vcx2q(int coproc, T n, uint32_t imm);
  uint8x16_t __arm_vcx2q_u8(int coproc, T n, uint32_t imm);
  T __arm_vcx2qa(int coproc, T acc, U n, uint32_t imm);
  T __arm_vcx3q(int coproc, T n, U m, uint32_t imm);
  uint8x16_t __arm_vcx3q_u8(int coproc, T n, U m, uint32_t imm);
  T __arm_vcx3qa(int coproc, T acc, U n, V m, uint32_t imm);

Most of them are polymorphic. Furthermore, some intrinsics are
polymorphic by 2 or 3 parameter types, such polymorphism is not
supported by the existing MVE/CDE tablegen backends, also we don't
really want to have a combinatorial explosion caused by 1000 different
combinations of 3 vector types. Because of this some intrinsics are
implemented as macros involving a cast of the polymorphic arguments to
uint8x16_t.

The IR intrinsics are even more restricted in terms of types: all MVE
vectors are cast to v16i8.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D76299

Files:
  clang/include/clang/Basic/arm_cde.td
  clang/test/CodeGen/arm-cde-vec.c
  clang/test/Sema/arm-cde-immediates.c
  clang/utils/TableGen/MveEmitter.cpp
  llvm/include/llvm/IR/IntrinsicsARM.td
  llvm/lib/Target/ARM/ARMInstrCDE.td
  llvm/test/CodeGen/Thumb2/cde-vec.ll

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