cmd/compile: cleanup code in getInstInfo to use switch statement

Simple cleanup: convert a bunch of if's to a switch statement in
getInstInfo. Also, use a few extra variables to avoid repeated node
conversions (such as n.(*ir.CallExpr))

Change-Id: I7a2a4efb569415256a8bc9350fb100bd2d8cfb39
Reviewed-on: https://go-review.googlesource.com/c/go/+/356311
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
1 file changed
tree: 307e662126392e46e16a04dcbde593ff4b3da757
  1. .gitattributes
  2. .github/
  3. .gitignore
  4. AUTHORS
  5. CONTRIBUTING.md
  6. CONTRIBUTORS
  7. LICENSE
  8. PATENTS
  9. README.md
  10. SECURITY.md
  11. api/
  12. codereview.cfg
  13. doc/
  14. lib/
  15. misc/
  16. src/
  17. test/
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