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cmd/compile: handle unsafe builtins like universal builtins

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Reuse the same mechanisms for handling universal builtins like len to
handle unsafe.Sizeof, etc. Allows us to drop package unsafe's export
data, and simplifies some code.

Updates #17508.

Change-Id: I620e0617c24e57e8a2d7cccd0e2de34608779656
Reviewed-on: https://go-review.googlesource.com/31433
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
This commit is contained in:
Matthew Dempsky 2016-10-18 14:17:05 -07:00
parent 7eed848a17
commit 3f2cb493e5
11 changed files with 95 additions and 162 deletions
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5
src/cmd/compile/internal/gc/mkbuiltin.go
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@ -4,8 +4,8 @@
// +build ignore
// Generate builtin.go from builtin/runtime.go and builtin/unsafe.go.
// Run this after changing builtin/runtime.go and builtin/unsafe.go
// Generate builtin.go from builtin/runtime.go.
// Run this after changing builtin/runtime.go
// or after changing the export metadata format in the compiler.
// Either way, you need to have a working compiler binary first.
// See bexport.go for how to make an export metadata format change.
@ -33,7 +33,6 @@ func main() {
fmt.Fprintln(&b, "package gc")
mkbuiltin(&b, "runtime")
mkbuiltin(&b, "unsafe")
var err error
if *stdout {