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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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5
src/cmd/compile/internal/walk/expr.go
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@ -205,6 +205,11 @@ func walkExpr1(n ir.Node, init *ir.Nodes) ir.Node {
n := n.(*ir.ConvExpr)
return walkConv(n, init)
case ir.OSLICE2ARRPTR:
n := n.(*ir.ConvExpr)
n.X = walkExpr(n.X, init)
return n
case ir.ODIV, ir.OMOD:
n := n.(*ir.BinaryExpr)
return walkDivMod(n, init)