[AArch64][SVE] Asm: Support for FMUL (indexed)

Unpredicated FP-multiply of SVE vector with a vector-element given by
vector[index], for example:

  fmul z0.s, z1.s, z2.s[0]

which performs an unpredicated FP-multiply of all 32-bit elements in
'z1' with the first element from 'z2'.

This patch adds restricted register classes for SVE vectors:
  ZPR_3b (only z0..z7 are allowed)  - for indexed vector of 16/32-bit elements.
  ZPR_4b (only z0..z15 are allowed) - for indexed vector of 64-bit elements.

Reviewers: rengolin, fhahn, SjoerdMeijer, samparker, javed.absar

Reviewed By: fhahn

Differential Revision: https://reviews.llvm.org/D48823

llvm-svn: 336205
7 files changed
tree: a3759ea508cb6bc98c587c24a1dee32aedd0b586
  1. clang/
  2. clang-tools-extra/
  3. compiler-rt/
  4. debuginfo-tests/
  5. libclc/
  6. libcxx/
  7. libcxxabi/
  8. libunwind/
  9. lld/
  10. lldb/
  11. llgo/
  12. llvm/
  13. openmp/
  14. parallel-libs/
  15. polly/
  16. README.md
README.md

Low Level Virtual Machine (LLVM)

This directory and its subdirectories contain source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and runtime environments.