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cmd/compile: allow conversion from slice to array ptr

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Panic if the slice is too short.

Updates #395

Change-Id: I90f4bff2da5d8f3148ba06d2482084f32b25c29a
Reviewed-on: https://go-review.googlesource.com/c/go/+/301650
Trust: Josh Bleecher Snyder <josharian@gmail.com>
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
This commit is contained in:
Josh Bleecher Snyder 2021-03-14 14:24:47 -07:00
parent 1c268431f4
commit faa4fa1a6e
33 changed files with 380 additions and 141 deletions
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1
src/cmd/compile/internal/ir/node.go
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@ -137,6 +137,7 @@ const (
OSTR2BYTES // Type(Left) (Type is []byte, Left is a string)
OSTR2BYTESTMP // Type(Left) (Type is []byte, Left is a string, ephemeral)
OSTR2RUNES // Type(Left) (Type is []rune, Left is a string)
OSLICE2ARRPTR // Type(Left) (Type is *[N]T, Left is a []T)
// Left = Right or (if Colas=true) Left := Right
// If Colas, then Ninit includes a DCL node for Left.
OAS