Comments (3)
@dzaima I agree with a more general comment, that this API spec doesn't need to discuss any of the V-extension architectural state, in the same way that the C language specification of <fenv>
doesn't mention frm
and fflags
. Said differently, you could write a C compiler that retargets RVV intrinsics at a non-RVV ISA, emulating everything.
This type of discussion might be relevant in an ABI document, or a document about mixing RVV intrinsics and inline asm, but the RVV intrinsics spec (intentionally) avoids both of these topics.
In the case of this PR, we are responding to a request from the RVI Architecture Review Committee that is blocking ratification of this spec. Rather than philosophizing and bickering with the ARC about what truly belongs in a C API spec, we decided it was more expedient to just simply implement their request, which amounts to expanding a (non-normative!) note that existed already.
from rvv-intrinsic-doc.
Earl Killian from ARC suggests that
Might I suggest that you specify for the intrinsics that would affect vxsat, that vxsat is UNSPECIFIED after execution of the intrinsic (to allow forward compatibility with whatever may or may not be done on the future to more properly support vxsat)?
from rvv-intrinsic-doc.
As a side-note, I wonder if it even makes sense for intrinsics to state anything about the vxsat
CSR - clang already can autovectorize plain scalar code to vxsat
-modifying code, so it's already the case that basic regular C arithmetic can modify vxsat
, thus making intrinsics also doing such moot.
from rvv-intrinsic-doc.
Related Issues (20)
- [Requirement]: The RISC-V RVV vector intrinsic must include support for vector groups in the __riscv_vfredosum function HOT 4
- Type-relative overloads for vreinterpret, vlmul_ext, vlmul_trunc, etc. HOT 1
- How to use a class to wrap or derive from a sizeless vector type HOT 1
- Encode all the effects of vsetvl in the return type, for use in subsequent type deductions HOT 1
- Does `__riscv_v_intrinsic >= 1000000` imply overloaded intrinsics are supported?
- Create bibliography from reference section HOT 3
- Simple questions about inline assembly in vmv.x.s instruction HOT 2
- Asterisks are not subscripts
- the wrong result of "vmerge_vvm_i32m1" HOT 5
- ta,ma reduction destination with vl=0 HOT 1
- Add a section with examples HOT 3
- Rename uses of {implicit,explicit}-frm into {Implicit, Explicit} FP rounding mode HOT 1
- Clarify the mapping of pseudo-intrinsics
- Clarify what float and double means HOT 1
- Fix authors in the document
- How to use LMUL in rvv-intrinsic? HOT 6
- Mismatched bfloat16 autogenerated files HOT 3
- Freeze the specification HOT 1
- `vfirst` and `vcpop` return types unexpectedly changed HOT 1
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.
from rvv-intrinsic-doc.