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The Go programming language

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Joel Sing 28dae3defb cmd/internal/obj/riscv: improve code generation for loading of constants Loading of constants that are 12 bits or smaller is currently performed using a single ADDIW instruction, while constants between 13 bits and 32 bits are loaded using a LUI+ADDIW pair. Instead, use a single ADDI instruction for the 12 bits or smaller case - this translates to the LI pseudo-instruction, making objdump more readable and giving: 11c7c: fff00293 li t0,-1 11c80: 00000313 li t1,0 Rather than: 11c7c: fff0029b addiw t0,zero,-1 11c80: 0000031b sext.w t1,zero In the case where a constant exceeds 12 bits, an LUI instruction is required, however if the lower 12 bits are zero, the ADDIW instruction can be omitted. The same applies to the case where immediate splitting is performed for other immediate instructions. This removes around 900 instructions from the Go binary. Change-Id: Id6c77774b3b429fa525da018a6926b85df838a2f Reviewed-on: https://go-review.googlesource.com/c/go/+/344457 Trust: Joel Sing <joel@sing.id.au> Run-TryBot: Joel Sing <joel@sing.id.au> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Mui <cherryyz@google.com>		2021-09-04 19:33:54 +00:00
.github	.github: add link to questions in ISSUE_TEMPLATE	2020-01-06 17:05:31 +00:00
api	net: reduce allocations for UDP send/recv on Windows	2021-08-16 23:57:10 +00:00
doc	image/draw: add RGBA64Image fast path	2021-09-03 01:38:54 +00:00
lib/time	lib/time: fix RFC 6557 url	2021-08-15 02:18:46 +00:00
misc	misc/wasm: enable ECMAScript strict mode	2021-09-03 19:56:09 +00:00
src	cmd/internal/obj/riscv: improve code generation for loading of constants	2021-09-04 19:33:54 +00:00
test	test: only test -G=3 by default	2021-09-02 19:33:52 +00:00
.gitattributes	all: treat all files as binary, but check in .bat with CRLF	2020-06-08 15:31:43 +00:00
.gitignore	internal/buildcfg: move build configuration out of cmd/internal/objabi	2021-04-16 19:20:53 +00:00
AUTHORS	A+C: update name	2021-06-01 17:08:12 +00:00
codereview.cfg	codereview.cfg: add codereview.cfg for master branch	2021-02-19 18:44:53 +00:00
CONTRIBUTING.md	all: restore changes from faulty merge/revert	2018-02-12 20:13:59 +00:00
CONTRIBUTORS	CONTRIBUTORS: update for the Go 1.17 release	2021-08-12 17:43:16 +00:00
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README.md	README: pull gopher image from website	2021-02-16 18:25:10 +00:00
SECURITY.md	SECURITY.md: update go versions	2019-09-26 15:34:57 +00:00

README.md

The Go Programming Language

Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.

Gopher image by Renee French, licensed under Creative Commons 3.0 Attributions license.

Our canonical Git repository is located at https://go.googlesource.com/go. There is a mirror of the repository at https://github.com/golang/go.

Unless otherwise noted, the Go source files are distributed under the BSD-style license found in the LICENSE file.

Download and Install

Binary Distributions

Official binary distributions are available at https://golang.org/dl/.

After downloading a binary release, visit https://golang.org/doc/install for installation instructions.

Install From Source

If a binary distribution is not available for your combination of operating system and architecture, visit https://golang.org/doc/install/source for source installation instructions.

Contributing

Go is the work of thousands of contributors. We appreciate your help!

To contribute, please read the contribution guidelines at https://golang.org/doc/contribute.html.

Note that the Go project uses the issue tracker for bug reports and proposals only. See https://golang.org/wiki/Questions for a list of places to ask questions about the Go language.