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2022-08-31cmd/compile: add support for unsafe.{String,StringData,SliceData}cuiweixie
For #53003 Change-Id: I13a761daca8b433b271a1feb711c103d9820772d Reviewed-on: https://go-review.googlesource.com/c/go/+/423774 Reviewed-by: Heschi Kreinick <heschi@google.com> Reviewed-by: Matthew Dempsky <mdempsky@google.com> Reviewed-by: hopehook <hopehook@golangcn.org> Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com> Reviewed-by: Keith Randall <khr@golang.org> Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Gopher Robot <gobot@golang.org>
2021-10-13unsafe: allow unsafe.Slice up to end of address spaceMatthew Dempsky
Allow the user to construct slices that are larger than the Go heap as long as they don't overflow the address space. Updates #48798. Change-Id: I659c8334d04676e1f253b9c3cd499eab9b9f989a Reviewed-on: https://go-review.googlesource.com/c/go/+/355489 Trust: Matthew Dempsky <mdempsky@google.com> Run-TryBot: Matthew Dempsky <mdempsky@google.com> Reviewed-by: Ian Lance Taylor <iant@golang.org>
2021-06-28cmd/compile,runtime: change unsafe.Slice((*T)(nil), 0) to return []T(nil)Matthew Dempsky
This CL removes the unconditional OCHECKNIL check added in walkUnsafeSlice by instead passing it as a pointer to runtime.unsafeslice, and hiding the check behind a `len == 0` check. While here, this CL also implements checkptr functionality for unsafe.Slice and disallows use of unsafe.Slice with //go:notinheap types. Updates #46742. Change-Id: I743a445ac124304a4d7322a7fe089c4a21b9a655 Reviewed-on: https://go-review.googlesource.com/c/go/+/331070 Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Go Bot <gobot@golang.org> Trust: Matthew Dempsky <mdempsky@google.com> Reviewed-by: Keith Randall <khr@golang.org>
2021-05-02cmd/compile: implement unsafe.Add and unsafe.SliceMatthew Dempsky
Updates #19367. Updates #40481. Change-Id: Iabd2afdd0d520e5d68fd9e6dedd013335a4b3886 Reviewed-on: https://go-review.googlesource.com/c/go/+/312214 Run-TryBot: Matthew Dempsky <mdempsky@google.com> Trust: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com> Reviewed-by: Keith Randall <khr@golang.org>
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