| commit | cf8cc7f63c7ddefb666a6e8d99a4843d3277db9f | [log] [tgz] |
|---|---|---|
| author | Richard Musiol <mail@richard-musiol.de> | Sun Mar 24 12:14:27 2019 +0100 |
| committer | Richard Musiol <neelance@gmail.com> | Thu Apr 04 16:10:12 2019 +0000 |
| tree | edc59cd956160ff6683a60e8848cacf841a20a3b | |
| parent | 1abf3aa55bb8b346bb1575ac8db5022f215df65a [diff] |
cmd/compile: add saturating conversions on wasm This change adds the GOWASM option "satconv" to enable the generation of experimental saturating (non-trapping) float-to-int conversions. It improves the performance of the conversion by 42%. Previously the conversions had already been augmented with helper functions to have saturating behavior. Now Wasm.rules is always using the new operation names and wasm/ssa.go is falling back to the helpers if the feature is not enabled. The feature is in phase 4 of the WebAssembly proposal process: https://github.com/WebAssembly/meetings/blob/master/process/phases.md More information on the feature can be found at: https://github.com/WebAssembly/nontrapping-float-to-int-conversions/blob/master/proposals/nontrapping-float-to-int-conversion/Overview.md Change-Id: Ic6c3688017054ede804b02b6b0ffd4a02ef33ad7 Reviewed-on: https://go-review.googlesource.com/c/go/+/170119 Reviewed-by: Cherry Zhang <cherryyz@google.com> Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
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