Commit Graph

4 Commits

Author SHA1 Message Date
Cullen Rhodes f730548484 [AArch64][AsmParser] Provide better diagnostics for SVE predicates
Patch by Sander de Smalen (sdesmalen)

Reviewed By: SjoerdMeijer

Differential Revision: https://reviews.llvm.org/D62941

llvm-svn: 362779
2019-06-07 08:37:00 +00:00
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 8eea4f1c7d [AArch64][SVE] Asm: Support for vector element compares (immediate).
Compare vector elements with a signed/unsigned immediate, e.g.
  cmpgt   p0.s, p0/z, z0.s, #-16
  cmphi   p0.s, p0/z, z0.s, #127

llvm-svn: 336081
2018-07-02 08:20:59 +00:00
Sander de Smalen d521c4353e [AArch64][SVE] Asm: Support for vector element compares.
This patch adds instructions for comparing elements from two vectors, e.g.
  cmpgt p0.s, p0/z, z0.s, z1.s

and also adds support for comparing to a 64-bit wide element vector, e.g.
  cmpgt p0.s, p0/z, z0.s, z1.d

The patch also contains aliases for certain comparisons, e.g.:
  cmple p0.s, p0/z, z0.s, z1.s => cmpge p0.s, p0/z, z1.s, z0.s
  cmplo p0.s, p0/z, z0.s, z1.s => cmphi p0.s, p0/z, z1.s, z0.s
  cmpls p0.s, p0/z, z0.s, z1.s => cmphs p0.s, p0/z, z1.s, z0.s
  cmplt p0.s, p0/z, z0.s, z1.s => cmpgt p0.s, p0/z, z1.s, z0.s

llvm-svn: 334931
2018-06-18 10:59:19 +00:00