golang compiler 代码
文件路径：/src/runtime/compiler.go
/ Copyright 2012 The Go Authors. All rights reserved.
/ Use of this source code is governed by a BSD-style
/ license that can be found in the LICENSE file.
package runtime
/ Compiler is the name of the compiler toolchain that built the
/ running binary. Known toolchains are:
/
/ gc Also known as cmd/compile.
/ gccgo The gccgo front end, part of the GCC compiler suite.
const Compiler = "gc"