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
The signed/unsigned DOT instructions perform a dot-product on
quadtuplets from two source vectors and accumulate the result in
the destination register. The instructions come in two forms:
Vector form, e.g.
sdot z0.s, z1.b, z2.b - signed dot product on four 8-bit quad-tuplets,
accumulating results in 32-bit elements.
udot z0.d, z1.h, z2.h - unsigned dot product on four 16-bit quad-tuplets,
accumulating results in 64-bit elements.
Indexed form, e.g.
sdot z0.s, z1.b, z2.b[3] - signed dot product on four 8-bit quad-tuplets
with specified quadtuplet from second
source vector, accumulating results in 32-bit
elements.
udot z0.d, z1.h, z2.h[1] - dot product on four 16-bit quad-tuplets
with specified quadtuplet from second
source vector, accumulating results in 64-bit
elements.
llvm-svn: 337372
Sander de Smalen