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Cherry Mui 40a6e2dae5 cmd/compile: tighten for huge functions in -N mode 
Currently, in -N mode we skip the tighten pass. However, for very
large functions, many values live across blocks can cause
pathological behavior in the register allocator, which could use
a huge amount of memory or cause the program to hang. For
functions that large, debugging using a debugger is unlikely to be
very useful (the function is probably generated anyway). So we do
a little optimization to make fewer values live across blocks and
make it easier for the compiler.

Fixes #52180.

Change-Id: I355fe31bb87ea5d0870bb52dd06405dd5d791dab
Reviewed-on: https://go-review.googlesource.com/c/go/+/475339
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Cherry Mui <cherryyz@google.com>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
2023-03-13 22:04:56 +00:00
.github .github: suggest using private browsing in pkgsite template 2023-01-03 18:52:47 +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/cgo: add tsan sync for traceback function 2023-03-08 20:11:59 +00:00
src cmd/compile: tighten for huge functions in -N mode 2023-03-13 22:04:56 +00:00
test cmd/compile: reorder operations in SCCs to enable more inlining 2023-03-09 22:13:26 +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.