commit 6f3e5e637c6c26d1d24e20e96b86ecd27a7ecabc
author Cherry Zhang <cherryyz@google.com> Mon Oct 09 15:33:29 2017 -0400
committer Cherry Zhang <cherryyz@google.com> Tue Oct 10 15:15:21 2017 +0000
tree de80139c252a6e8a67696c74f87d38352eda6056
parent ae175f74cb4beb4a6695e185c77c7ed52ee2d1d7

cmd/compile: intrinsify runtime.getcallersp

Add a compiler intrinsic for getcallersp. So we are able to get
rid of the argument (not done in this CL).

Change-Id: Ic38fda1c694f918328659ab44654198fb116668d
Reviewed-on: https://go-review.googlesource.com/69350
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: David Chase <drchase@google.com>

src/cmd/compile/internal/ssa/gen/genericOps.go

diff --git a/src/cmd/compile/internal/ssa/gen/genericOps.go b/src/cmd/compile/internal/ssa/gen/genericOps.go
index bec7ef9..117ea07 100644
--- a/src/cmd/compile/internal/ssa/gen/genericOps.go
+++ b/src/cmd/compile/internal/ssa/gen/genericOps.go
@@ -379,6 +379,7 @@
 	{name: "GetG", argLength: 1}, // runtime.getg() (read g pointer). arg0=mem
 	{name: "GetClosurePtr"},      // get closure pointer from dedicated register
 	{name: "GetCallerPC"},        // for getcallerpc intrinsic
+	{name: "GetCallerSP"},        // for getcallersp intrinsic
 
 	// Indexing operations
 	{name: "PtrIndex", argLength: 2},             // arg0=ptr, arg1=index. Computes ptr+sizeof(*v.type)*index, where index is extended to ptrwidth type