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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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132
src/cmd/compile/internal/ir/fmt.go
View file

@ -25,69 +25,71 @@ import (
// Op
var OpNames = []string{
OADDR: "&",
OADD: "+",
OADDSTR: "+",
OALIGNOF: "unsafe.Alignof",
OANDAND: "&&",
OANDNOT: "&^",
OAND: "&",
OAPPEND: "append",
OAS: "=",
OAS2: "=",
OBREAK: "break",
OCALL: "function call", // not actual syntax
OCAP: "cap",
OCASE: "case",
OCLOSE: "close",
OCOMPLEX: "complex",
OBITNOT: "^",
OCONTINUE: "continue",
OCOPY: "copy",
ODELETE: "delete",
ODEFER: "defer",
ODIV: "/",
OEQ: "==",
OFALL: "fallthrough",
OFOR: "for",
OFORUNTIL: "foruntil", // not actual syntax; used to avoid off-end pointer live on backedge.892
OGE: ">=",
OGOTO: "goto",
OGT: ">",
OIF: "if",
OIMAG: "imag",
OINLMARK: "inlmark",
ODEREF: "*",
OLEN: "len",
OLE: "<=",
OLSH: "<<",
OLT: "<",
OMAKE: "make",
ONEG: "-",
OMOD: "%",
OMUL: "*",
ONEW: "new",
ONE: "!=",
ONOT: "!",
OOFFSETOF: "unsafe.Offsetof",
OOROR: "||",
OOR: "|",
OPANIC: "panic",
OPLUS: "+",
OPRINTN: "println",
OPRINT: "print",
ORANGE: "range",
OREAL: "real",
ORECV: "<-",
ORECOVER: "recover",
ORETURN: "return",
ORSH: ">>",
OSELECT: "select",
OSEND: "<-",
OSIZEOF: "unsafe.Sizeof",
OSUB: "-",
OSWITCH: "switch",
OXOR: "^",
OADDR: "&",
OADD: "+",
OADDSTR: "+",
OALIGNOF: "unsafe.Alignof",
OANDAND: "&&",
OANDNOT: "&^",
OAND: "&",
OAPPEND: "append",
OAS: "=",
OAS2: "=",
OBREAK: "break",
OCALL: "function call", // not actual syntax
OCAP: "cap",
OCASE: "case",
OCLOSE: "close",
OCOMPLEX: "complex",
OBITNOT: "^",
OCONTINUE: "continue",
OCOPY: "copy",
ODELETE: "delete",
ODEFER: "defer",
ODIV: "/",
OEQ: "==",
OFALL: "fallthrough",
OFOR: "for",
OFORUNTIL: "foruntil", // not actual syntax; used to avoid off-end pointer live on backedge.892
OGE: ">=",
OGOTO: "goto",
OGT: ">",
OIF: "if",
OIMAG: "imag",
OINLMARK: "inlmark",
ODEREF: "*",
OLEN: "len",
OLE: "<=",
OLSH: "<<",
OLT: "<",
OMAKE: "make",
ONEG: "-",
OMOD: "%",
OMUL: "*",
ONEW: "new",
ONE: "!=",
ONOT: "!",
OOFFSETOF: "unsafe.Offsetof",
OOROR: "||",
OOR: "|",
OPANIC: "panic",
OPLUS: "+",
OPRINTN: "println",
OPRINT: "print",
ORANGE: "range",
OREAL: "real",
ORECV: "<-",
ORECOVER: "recover",
ORETURN: "return",
ORSH: ">>",
OSELECT: "select",
OSEND: "<-",
OSIZEOF: "unsafe.Sizeof",
OSUB: "-",
OSWITCH: "switch",
OUNSAFEADD: "unsafe.Add",
OUNSAFESLICE: "unsafe.Slice",
OXOR: "^",
}
// GoString returns the Go syntax for the Op, or else its name.
@ -218,6 +220,8 @@ var OpPrec = []int{
OTMAP: 8,
OTSTRUCT: 8,
OTYPE: 8,
OUNSAFEADD: 8,
OUNSAFESLICE: 8,
OINDEXMAP: 8,
OINDEX: 8,
OSLICE: 8,
@ -794,7 +798,7 @@ func exprFmt(n Node, s fmt.State, prec int) {
n := n.(*SliceHeaderExpr)
fmt.Fprintf(s, "sliceheader{%v,%v,%v}", n.Ptr, n.Len, n.Cap)
case OCOMPLEX, OCOPY:
case OCOMPLEX, OCOPY, OUNSAFEADD, OUNSAFESLICE:
n := n.(*BinaryExpr)
fmt.Fprintf(s, "%v(%v, %v)", n.Op(), n.X, n.Y)