cmd/compile: mark NOT as an op that doesn't clobber flags on i386/AMD64

NOT does not affect any FLAGS register values on i386/AMD64 so we do not
need to mark it as an Op that clobbers them.

Change-Id: I6d99cad49cfa2568b01e58190256582b18fb3b7b
Reviewed-on: https://go-review.googlesource.com/c/go/+/354831
Reviewed-by: Keith Randall <khr@golang.org>
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Josh Bleecher Snyder <josharian@gmail.com>
3 files changed
tree: 1e7a7185c6bbe3b5ce4d2893750859000e37f97a
  1. .github/
  2. api/
  3. doc/
  4. lib/
  5. misc/
  6. src/
  7. test/
  8. .gitattributes
  9. .gitignore
  10. AUTHORS
  11. codereview.cfg
  12. CONTRIBUTING.md
  13. CONTRIBUTORS
  14. LICENSE
  15. PATENTS
  16. README.md
  17. SECURITY.md
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