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WANG Xuerui 22f9317f20 cmd/internal/obj/loong64: assemble BEQ/BNEs comparing with 0 as beqz/bnez 
LoongArch (except for the extremely reduced LA32 Primary subset) has
dedicated beqz/bnez instructions as alternative encodings for beq/bne
with one of the source registers being R0, that allow the offset field
to occupy 5 more bits, giving 21 bits in total (equal to the FP
branches). Make use of them instead of beq/bne if one source operand is
omitted in asm, or if one of the registers being compared is R0.

Multiple go1 benchmark runs indicate the change is not perf-sensitive.

Change-Id: If6267623c82092e81d75578091fb4e013658b9f3
Reviewed-on: https://go-review.googlesource.com/c/go/+/478377
Reviewed-by: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
Run-TryBot: Ben Shi <powerman1st@163.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: Wayne Zuo <wdvxdr@golangcn.org>
2023-03-31 02:56:19 +00:00
.github doc: normalize proposal-process links 2023-03-29 22:00:27 +00:00
api net: mptcp: implement listenMPTCP 2023-03-29 22:12:20 +00:00
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lib/time time/tzdata: generate zip constant during cmd/dist 2023-01-17 22:30:53 +00:00
misc runtime: get a better g0 stack bound in needm 2023-03-30 23:23:55 +00:00
src cmd/internal/obj/loong64: assemble BEQ/BNEs comparing with 0 as beqz/bnez 2023-03-31 02:56:19 +00:00
test cmd/compile: casts from slices to array pointers are known to be non-nil 2023-03-29 21:55:11 +00:00
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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 Gopher image by Renee French, licensed under Creative Commons 4.0 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://go.dev/dl/.

After downloading a binary release, visit https://go.dev/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://go.dev/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://go.dev/doc/contribute.

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