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cmd/compile, runtime: eliminate growslice_n

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Fixes #11419.

Change-Id: I7935a253e3e96191a33f5041bab203ecc5f0c976
Reviewed-on: https://go-review.googlesource.com/20647
Reviewed-by: Keith Randall <khr@golang.org>
This commit is contained in:
Matthew Dempsky 2016-03-13 15:22:45 -07:00
parent 8ec80176d4
commit d1341d6cf3
4 changed files with 29 additions and 42 deletions
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11
src/runtime/slice.go
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@ -33,17 +33,6 @@ func makeslice(t *slicetype, len64, cap64 int64) slice {
return slice{p, len, cap}
}
// growslice_n is a variant of growslice that takes the number of new elements
// instead of the new minimum capacity.
// TODO(rsc): This is used by append(slice, slice...).
// The compiler should change that code to use growslice directly (issue #11419).
func growslice_n(t *slicetype, old slice, n int) slice {
if n < 1 {
panic(errorString("growslice: invalid n"))
}
return growslice(t, old, old.cap+n)
}
// growslice handles slice growth during append.
// It is passed the slice type, the old slice, and the desired new minimum capacity,
// and it returns a new slice with at least that capacity, with the old data