| commit | 2043b3b47b3ca76d8ce44f05a77e48d2291b6fc6 | [log] [tgz] |
|---|---|---|
| author | Keith Randall <khr@golang.org> | Wed Oct 06 14:53:32 2021 -0700 |
| committer | Keith Randall <khr@golang.org> | Thu Oct 07 18:34:24 2021 +0000 |
| tree | f79c8afe98db2f4ec23f2a332abfdb23b8528b8b | |
| parent | 4607ebc7d897c36687ae4ede3cfd4939c6dd0a54 [diff] |
cmd/compile,runtime: implement uint64->float32 correctly on 32-bit archs The old way of implementing it, float32(float64(x)), involves 2 roundings which can cause accuracy errors in some strange cases. Implement a runtime version of [u]int64tofloat32 which only does one rounding. Fixes #48807 Change-Id: Ie580be480bee4f3a479e58ef8dce23032f231704 Reviewed-on: https://go-review.googlesource.com/c/go/+/354429 Trust: Keith Randall <khr@golang.org> Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: David Chase <drchase@google.com>
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