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Author SHA1 Message Date
Robert Griesemer
0cd3ecb016 cmd/compile: reduce allocs some more 
Also: update fmt_test.go.

Together with the previous commits, we are now at or below c85b77c
levels in terms of allocation for the benchmark described in #16897
(old = c85b77c, new = this commit):

name       old time/op     new time/op     delta
Template       297ms ± 5%      284ms ± 3%  -4.53%  (p=0.000 n=27+29)
Unicode        159ms ± 5%      151ms ± 5%  -4.91%  (p=0.000 n=28+30)
GoTypes        985ms ± 5%      935ms ± 2%  -5.13%  (p=0.000 n=28+29)

name       old alloc/op    new alloc/op    delta
Template      46.8MB ± 0%     45.7MB ± 0%  -2.37%  (p=0.000 n=30+30)
Unicode       37.8MB ± 0%     37.9MB ± 0%  +0.29%  (p=0.000 n=29+30)
GoTypes        143MB ± 0%      138MB ± 0%  -3.64%  (p=0.000 n=29+30)

name       old allocs/op   new allocs/op   delta
Template        444k ± 0%       440k ± 0%  -0.94%  (p=0.000 n=30+30)
Unicode         369k ± 0%       369k ± 0%  +0.19%  (p=0.000 n=29+30)
GoTypes        1.35M ± 0%      1.34M ± 0%  -1.24%  (p=0.000 n=30+30)

For #16897.

Change-Id: Iedbeb408e2f1e68dd4a3201bf8813c8066ebf7ed
Reviewed-on: https://go-review.googlesource.com/29089
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
 2016-09-13 16:59:56 +00:00
Robert Griesemer
6537e18f02 cmd/compile: rewrite %1v and %2v formats to %S and %L (short and long) 
- also consistently use %v instead of %s when we have a (gc) Formatter
- rewrite done automatically using Formats test in -u (update) mode
- manual update of format strings that were not single string constants
- updated fmt.go, fmt_test.go accordingly
- fmt_test: permit "%T" always

Change-Id: I8f0704286aba5704600ad0c4a4484005b79b905d
Reviewed-on: https://go-review.googlesource.com/28954
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
 2016-09-12 20:07:25 +00:00
Robert Griesemer
af8ca3387a cmd/compile: improved format string handling, faster operation 
- only accept a-z, A-Z as format verbs
- blacklist vendored math package (no need to include it)

Change-Id: Ica0fcbfe712369f79dd1d3472dfd4759b8bc3752
Reviewed-on: https://go-review.googlesource.com/28953
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
 2016-09-12 20:06:30 +00:00
Robert Griesemer
8458a387e3 cmd/compile: make fmt_test work on entire compiler 
- process all directories recursively

Change-Id: I27a737013d17fd3c2cc8ae9de4722dcbe989e6e5
Reviewed-on: https://go-review.googlesource.com/28789
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
 2016-09-12 19:57:07 +00:00