| Summary: | [WHLSL] Implement uniform control flow restrictions | ||
|---|---|---|---|
| Product: | WebKit | Reporter: | Myles C. Maxfield <mmaxfield> |
| Component: | WebGPU | Assignee: | Myles C. Maxfield <mmaxfield> |
| Status: | RESOLVED DUPLICATE | ||
| Severity: | Normal | CC: | jonlee, webkit-bug-importer |
| Priority: | P2 | Keywords: | InRadar |
| Version: | WebKit Nightly Build | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| See Also: |
https://bugs.webkit.org/show_bug.cgi?id=189122 https://bugs.webkit.org/show_bug.cgi?id=189125 |
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| Bug Depends on: | |||
| Bug Blocks: | 176199, 189202 | ||
|
Description
Myles C. Maxfield
2018-08-29 16:36:26 PDT
Some standard library functions must never be called in nonuniform control flow. Right now, we have a definition of "uniform control flow" in the spec which is validated at run-time, not compile-time. We also (will) have a definition of "control flow which was arrived-at by branching on a non-uniform value" which is validated at compile-time, not run-time. This is currently only used for variables marked "uniform" (which is a totally different thing). We need to figure out whether or not we can unify these two definitions. I'm going to do this in the same patch as https://bugs.webkit.org/show_bug.cgi?id=189125 *** This bug has been marked as a duplicate of bug 189125 *** Migrated to https://github.com/gpuweb/WHLSL/issues/57 |