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Updated CompilerOptimizations (markdown)

Brad Fitzpatrick 2015-02-05 08:45:57 -08:00
parent 9b72758a61
commit 25b2f97277
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CompilerOptimizations.md

@ -27,6 +27,20 @@ For a map m of type map[string]T and []byte b, m[string(b)] doesn't allocate. (t
* **gc:** 1.4+
* **gccgo:** ?
### range over []byte(s)
Avoiding allocating []byte of a string when ranging over the bytes:
```
s := "foo"
for i, c := range []byte(s) {
// ...
}
```
* **gc:** 1.5+ (CL 3790)
* **gccgo:** ?
## Escape analysis and Inlining
Use `-gcflags -m` to observe the result of escape analysis and inlining