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Commit Graph

Author	SHA1	Message	Date
Rémy Oudompheng	7ab62b0bac	test: avoid interface conversion in rotate.go It is not necessary for the test to be effective and uses a lot of resources in the compiler. Memory usage is halved and compilation around 8x faster. R=golang-dev, r, rsc, r CC=golang-dev https://golang.org/cl/6290044	2012-06-04 23:31:31 +02:00
Nigel Tao	947a3ddf87	cmd/gc: recognize u<<1 op u>>31 as a rotate when op is ^, not just \|. R=rsc CC=golang-dev https://golang.org/cl/6249071	2012-06-04 20:53:32 +10:00
Russ Cox	c6ce44822c	cmd/gc: faster code, mainly for rotate * Eliminate bounds check on known small shifts. * Rewrite x<<s \| x>>(32-s) as a rotate (constant s). * More aggressive (but still minimal) range analysis. R=ken, dave, iant CC=golang-dev https://golang.org/cl/6209077	2012-05-24 17:20:07 -04:00

Author

SHA1

Message

Date

Rémy Oudompheng

7ab62b0bac

test: avoid interface conversion in rotate.go

It is not necessary for the test to be effective and uses a
lot of resources in the compiler. Memory usage is halved and
compilation around 8x faster.

R=golang-dev, r, rsc, r
CC=golang-dev
https://golang.org/cl/6290044

2012-06-04 23:31:31 +02:00

Nigel Tao

947a3ddf87

cmd/gc: recognize u<<1 op u>>31 as a rotate when op is ^, not just |.

R=rsc
CC=golang-dev
https://golang.org/cl/6249071

2012-06-04 20:53:32 +10:00

Russ Cox

c6ce44822c

cmd/gc: faster code, mainly for rotate

* Eliminate bounds check on known small shifts.
* Rewrite x<<s | x>>(32-s) as a rotate (constant s).
* More aggressive (but still minimal) range analysis.

R=ken, dave, iant
CC=golang-dev
https://golang.org/cl/6209077

2012-05-24 17:20:07 -04:00

3 Commits