Commit Graph

2 Commits

Author SHA1 Message Date
Hsiangkai Wang 6e360460f1 [RISCV] Use v8-v23 as argument registers to conform to the proposal.
The maximum LMUL is 8. We need 16 vector registers for two LMUL-8
arguments. The modification follows the proposal of psABI in
https://github.com/riscv/riscv-elf-psabi-doc/pull/171

Differential Revision: https://reviews.llvm.org/D95134
2021-01-22 07:55:24 +08:00
Monk Chiang 2aed9bc98a [RISCV] Define vector narrowing type-convert intrinsic.
Define intrinsics:
  1. vfncvt.xu.f.w/vfncvt.x.f.w
  2. vfncvt.rtz.xu.f.w/vfncvt.rtz.x.f.w
  3. vfncvt.f.xu.w/vfncvt.f.x.w
  4. vfncvt.f.f.w/vfncvt.rod.f.f.w

We work with @rogfer01 from BSC to come out this patch.

Authored-by: Roger Ferrer Ibanez <rofirrim@gmail.com>
Co-Authored-by: Monk Chiang <monk.chiang@sifive.com>

Differential Revision: https://reviews.llvm.org/D93932
2020-12-31 11:48:28 +08:00