From: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Date: Wed, 1 Sep 2021 12:58:31 +0000 (+0700)
Subject: cmd/compile: allow objStub from unsafe package
X-Git-Tag: go1.18beta1~1520
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=9afbf82667a81827a805f39db51ff36bf0abc737;p=gostls13.git

cmd/compile: allow objStub from unsafe package

CL 346469 added support for unsafe.Sizeof and friends to operate on
generic parameters for compiler importer/exporter. This CL adds support
for unified IR.

Updates #48094

Change-Id: I63af1a7c3478f59b03ecc23229ac2254d3457868
Reviewed-on: https://go-review.googlesource.com/c/go/+/346769
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
---

diff --git a/src/cmd/compile/internal/noder/reader2.go b/src/cmd/compile/internal/noder/reader2.go
index 8f3f0a50e9..a775ffda34 100644
--- a/src/cmd/compile/internal/noder/reader2.go
+++ b/src/cmd/compile/internal/noder/reader2.go
@@ -147,6 +147,10 @@ func (r *reader2) doPkg() *types2.Package {
 	if path == "builtin" {
 		return nil // universe
 	}
+	if path == "unsafe" {
+		// TODO(mdempsky): This should be in r.p.imports.
+		return types2.Unsafe
+	}
 	if path == "" {
 		path = r.p.pkgPath
 	}
@@ -362,7 +366,7 @@ func (pr *pkgReader2) objIdx(idx int) (*types2.Package, string) {
 	tag := codeObj(rname.code(syncCodeObj))
 
 	if tag == objStub {
-		assert(objPkg == nil)
+		assert(objPkg == nil || objPkg == types2.Unsafe)
 		return objPkg, objName
 	}