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go / go / 1e0ef6601da8ee0a14def5c82eb298fcdab97cf6
commit1e0ef6601da8ee0a14def5c82eb298fcdab97cf6[log] [tgz]
authorCherry Zhang <cherryyz@google.com>Tue Nov 21 09:25:29 2017 -0500
committerCherry Zhang <cherryyz@google.com>Tue Feb 13 15:59:55 2018 +0000
treee0edcf16d87bebc2f0bd70139279471751210f8e
parent36951a9f638b03950b7413eee73bd0e3ccf47130 [diff]
cmd/internal/obj/mips: use LR as temporary register in RET

On mips/mips64, for non-leaf function, RET is assembled as
	MOV (SP), R4       // load saved LR
	ADD $framesize, SP
	JMP (R4)

This clobbers R4 unnecessarily. Use the link register as
temporary instead.

Probably for Go 1.11.

Change-Id: I2209db7be11074ed2e0e0829cace95ebfb709e9f
Reviewed-on: https://go-review.googlesource.com/79016
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Austin Clements <austin@google.com>
1 file changed
tree: e0edcf16d87bebc2f0bd70139279471751210f8e
  1. .github/
  2. api/
  3. doc/
  4. lib/
  5. misc/
  6. src/
  7. test/
  8. .gitattributes
  9. .gitignore
  10. AUTHORS
  11. CONTRIBUTING.md
  12. CONTRIBUTORS
  13. favicon.ico
  14. LICENSE
  15. PATENTS
  16. README.md
  17. robots.txt
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