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The Go programming language
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Update #4629. $ cat shift2.c unsigned int shift(unsigned int x, unsigned int y) { x = (x << 3); y = (y << 5); x = (x << 7); y = (y << 9); return x ^ y; } ## BEFORE $ go tool 6c -S shift2.c (shift2.c:2) TEXT shift+0(SB),$0-8 (shift2.c:4) MOVL x+0(FP),!!AX (shift2.c:4) SALL $3,!!AX (shift2.c:4) MOVL AX,!!DX (shift2.c:5) MOVL y+4(FP),!!AX (shift2.c:5) SALL $5,!!AX (shift2.c:5) MOVL AX,!!CX (shift2.c:6) MOVL DX,!!AX (shift2.c:6) SALL $7,!!AX (shift2.c:6) MOVL AX,!!DX (shift2.c:7) MOVL CX,!!AX (shift2.c:7) SALL $9,!!AX (shift2.c:7) MOVL AX,!!CX (shift2.c:8) MOVL DX,!!AX (shift2.c:8) XORL CX,!!AX (shift2.c:8) RET ,!! (shift2.c:8) RET ,!! (shift2.c:8) END ,!! ## AFTER $ go tool 6c -S shift2.c (shift2.c:2) TEXT shift+0(SB),$0-8 (shift2.c:4) MOVL x+0(FP),!!AX (shift2.c:4) SALL $3,!!AX (shift2.c:5) MOVL y+4(FP),!!CX (shift2.c:5) SALL $5,!!CX (shift2.c:6) SALL $7,!!AX (shift2.c:7) SALL $9,!!CX (shift2.c:8) XORL CX,!!AX (shift2.c:8) RET ,!! (shift2.c:8) RET ,!! (shift2.c:8) END ,!! R=rsc, minux.ma, dave, nigeltao CC=golang-dev https://golang.org/cl/7066055 |
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This is the source code repository for the Go programming language.
For documentation about how to install and use Go,
visit http://golang.org/ or load doc/install.html in your web browser.
After installing Go, you can view a nicely formatted
doc/install.html by running godoc --http=:6060
and then visiting http://localhost:6060/doc/install.html.
Unless otherwise noted, the Go source files are distributed
under the BSD-style license found in the LICENSE file.
--
Binary Distribution Notes
If you have just untarred a binary Go distribution, you need to set
the environment variable $GOROOT to the full path of the go
directory (the one containing this README). You can omit the
variable if you unpack it into /usr/local/go, or if you rebuild
from sources by running all.bash (see doc/install.html).
You should also add the Go binary directory $GOROOT/bin
to your shell's path.
For example, if you extracted the tar file into $HOME/go, you might
put the following in your .profile:
export GOROOT=$HOME/go
export PATH=$PATH:$GOROOT/bin
See doc/install.html for more details.