Commit Graph

2 Commits

Author SHA1 Message Date
Sander de Smalen e64206a02c [AArch64][SVE] Asm: Enable instructions to be prefixed.
This patch enables instructions that are destructive on their
destination- and first source operand, to be prefixed with a
MOVPRFX instruction.

This patch also adds a variety of tests:

- positive tests for all instructions and forms that accept a
  movprfx for either or both predicated and unpredicated forms.

- negative tests for all instructions and forms that do not accept
  an unpredicated or predicated movprfx.

- negative tests for the diagnostics that get emitted when a MOVPRFX
  instruction is used incorrectly.

This is patch [2/2] in a series to add MOVPRFX instructions:
- Patch [1/2]: https://reviews.llvm.org/D49592
- Patch [2/2]: https://reviews.llvm.org/D49593

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

Reviewed By: SjoerdMeijer

Differential Revision: https://reviews.llvm.org/D49593

llvm-svn: 338261
2018-07-30 16:05:45 +00:00
Sander de Smalen 3b9e342ae1 [AArch64][SVE] Asm: Support for predicated FP operations.
This patch adds support for the following floating point
instructions:
  FABD   (absolute difference)
  FADD   (addition)
  FSUB   (subtract)
  FSUBR  (subtract reverse form)
  FDIV   (divide)
  FDIVR  (divide reverse form)
  FMAX   (maximum)
  FMAXNM (maximum number)
  FMIN   (minimum)
  FMINNM (minimum number)
  FSCALE (adjust exponent)
  FMULX  (multiply extended)

All operations are predicated and binary form, e.g.

  fadd z0.h, p0/m, z0.h, z1.h
        ^___________^ (tied)

Supporting 16, 32 and 64-bit FP elements.

llvm-svn: 337259
2018-07-17 09:48:57 +00:00