From: David Lazar <lazard@golang.org>
Date: Wed, 30 Nov 2016 22:09:07 +0000 (-0500)
Subject: cmd/compile: do not inline functions marked cgo_unsafe_args
X-Git-Tag: go1.8beta2~123
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=9fbfe7cca00a456541e9aa2b2cc1251d777f325b;p=gostls13.git

cmd/compile: do not inline functions marked cgo_unsafe_args

Now the net tests pass with -gcflags '-l=4'.

Fixes #18125.

Change-Id: I4e3a46eb0cb3a93b203e74f5bc99c5822331f535
Reviewed-on: https://go-review.googlesource.com/33722
Reviewed-by: Keith Randall <khr@golang.org>
---

diff --git a/src/cmd/compile/internal/gc/inl.go b/src/cmd/compile/internal/gc/inl.go
index d8f1f24536..7b2fcf89ba 100644
--- a/src/cmd/compile/internal/gc/inl.go
+++ b/src/cmd/compile/internal/gc/inl.go
@@ -107,6 +107,12 @@ func caninl(fn *Node) {
 		return
 	}
 
+	// If marked "go:cgo_unsafe_args", don't inline
+	if fn.Func.Pragma&CgoUnsafeArgs != 0 {
+		reason = "marked go:cgo_unsafe_args"
+		return
+	}
+
 	// If fn has no body (is defined outside of Go), cannot inline it.
 	if fn.Nbody.Len() == 0 {
 		reason = "no function body"