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[dev.typeparams] cmd/compile: remove special escape analysis tags

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This CL removes the special escape analysis tags added to support
//go:uintptrescapes and calls to external functions. Instead, these
are kept as function pragmas.

This CL by itself isn't very interesting, but I expect will help with
subsequent cleanups I have planned here.

Change-Id: Ifb960289a27e0a6295ce2d2f5ec233cac590522b
Reviewed-on: https://go-review.googlesource.com/c/go/+/329969
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Trust: Matthew Dempsky <mdempsky@google.com>
This commit is contained in:
Matthew Dempsky 2021-06-21 22:03:02 -07:00
parent 859d903b06
commit 077100dfcd
3 changed files with 48 additions and 44 deletions
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19
src/cmd/compile/internal/ir/node.go
View file

@ -436,18 +436,19 @@ func (s NameSet) Sorted(less func(*Name, *Name) bool) []*Name {
return res
}
type PragmaFlag int16
type PragmaFlag uint16
const (
// Func pragmas.
Nointerface PragmaFlag = 1 << iota
Noescape // func parameters don't escape
Norace // func must not have race detector annotations
Nosplit // func should not execute on separate stack
Noinline // func should not be inlined
NoCheckPtr // func should not be instrumented by checkptr
CgoUnsafeArgs // treat a pointer to one arg as a pointer to them all
UintptrEscapes // pointers converted to uintptr escape
Nointerface PragmaFlag = 1 << iota
Noescape // func parameters don't escape
Norace // func must not have race detector annotations
Nosplit // func should not execute on separate stack
Noinline // func should not be inlined
NoCheckPtr // func should not be instrumented by checkptr
CgoUnsafeArgs // treat a pointer to one arg as a pointer to them all
UintptrKeepAlive // pointers converted to uintptr must be kept alive (compiler internal only)
UintptrEscapes // pointers converted to uintptr escape
// Runtime-only func pragmas.
// See ../../../../runtime/README.md for detailed descriptions.