[release-branch.go1.7] cmd/compile: compare size in dead store elimination

This CL is a manual backpatch of CL 27320 into the 1.7.1 release branch.

The manual backpatch is required because OpZero changed from having a
size as its AuxInt to having a size+align as its AuxInt (that was to support
the ARM SSA backend).  Otherwise the CLs should be identical.

Please review carefully!

Change-Id: I569b759c06d1971c9c62dc5dd589abc7ef7c844a
Reviewed-on: https://go-review.googlesource.com/28670
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Reviewed-by: David Chase <drchase@google.com>
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2 files changed
tree: ad90c71defbcca9131689ffc42deec6f12d0831c
  1. .gitattributes
  2. .github/
  3. .gitignore
  4. AUTHORS
  5. CONTRIBUTING.md
  6. CONTRIBUTORS
  7. LICENSE
  8. PATENTS
  9. README.md
  10. VERSION
  11. api/
  12. doc/
  13. favicon.ico
  14. lib/
  15. misc/
  16. robots.txt
  17. src/
  18. test/
README.md

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