Stowage/go
2
0
Fork 0
mirror of https://github.com/golang/go.git synced 2025-12-08 06:10:04 +00:00
Code Issues Projects Releases Packages Wiki Activity

cmd/compile: intrinsify runtime.getcallersp

Browse source 
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>
This commit is contained in:
Cherry Zhang 2017-10-09 15:33:29 -04:00
parent ae175f74cb
commit 6f3e5e637c
37 changed files with 296 additions and 11 deletions
Download patch file Download diff file Expand all files Collapse all files

3
src/cmd/compile/internal/ssa/gen/ARM64Ops.go
View file

@ -425,6 +425,9 @@ func init() {
// use of R26 (arm64.REGCTXT, the closure pointer)
{name: "LoweredGetClosurePtr", reg: regInfo{outputs: []regMask{buildReg("R26")}}},
// LoweredGetCallerSP returns the SP of the caller of the current function.
{name: "LoweredGetCallerSP", reg: gp01, rematerializeable: true},
// MOVDconvert converts between pointers and integers.
// We have a special op for this so as to not confuse GC
// (particularly stack maps). It takes a memory arg so it