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cmd/compile: clean up various bits of code

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* replace a copy of IsMethod with a call of it.
* a few more switches where they simplify the code.
* prefer composite literals over "n := new(...); n.x = y; ...".
* use defers to get rid of three goto labels.
* rewrite updateHasCall into two funcs to remove gotos.

Passes toolstash-check on std cmd.

Change-Id: Icb5442a89a87319ef4b640bbc5faebf41b193ef1
Reviewed-on: https://go-review.googlesource.com/72070
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
This commit is contained in:
Daniel Martí 2017-10-20 11:56:31 +01:00
parent 7092a312e5
commit 006bc57095
9 changed files with 53 additions and 79 deletions
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4
src/cmd/compile/internal/gc/esc.go
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@ -205,9 +205,7 @@ const (
// allowed level when a loop is encountered. Using -2 suffices to
// pass all the tests we have written so far, which we assume matches
// the level of complexity we want the escape analysis code to handle.
const (
MinLevel = -2
)
const MinLevel = -2
// A Level encodes the reference state and context applied to
// (stack, heap) allocated memory.