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cmd/compile: implement unsafe.Add and unsafe.Slice

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Updates #19367.
Updates #40481.

Change-Id: Iabd2afdd0d520e5d68fd9e6dedd013335a4b3886
Reviewed-on: https://go-review.googlesource.com/c/go/+/312214
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Trust: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Keith Randall <khr@golang.org>
This commit is contained in:
Matthew Dempsky 2021-04-21 02:11:15 -07:00
parent 0d32d9e8a8
commit fadad851a3
20 changed files with 439 additions and 204 deletions
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7
src/cmd/compile/internal/walk/expr.go
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@ -117,12 +117,17 @@ func walkExpr1(n ir.Node, init *ir.Nodes) ir.Node {
n.X = walkExpr(n.X, init)
return n
case ir.OEFACE, ir.OAND, ir.OANDNOT, ir.OSUB, ir.OMUL, ir.OADD, ir.OOR, ir.OXOR, ir.OLSH, ir.ORSH:
case ir.OEFACE, ir.OAND, ir.OANDNOT, ir.OSUB, ir.OMUL, ir.OADD, ir.OOR, ir.OXOR, ir.OLSH, ir.ORSH,
ir.OUNSAFEADD:
n := n.(*ir.BinaryExpr)
n.X = walkExpr(n.X, init)
n.Y = walkExpr(n.Y, init)
return n
case ir.OUNSAFESLICE:
n := n.(*ir.BinaryExpr)
return walkUnsafeSlice(n, init)
case ir.ODOT, ir.ODOTPTR:
n := n.(*ir.SelectorExpr)
return walkDot(n, init)