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go / go / c24681ae2e1c96bd67c149cffa8f5ed394e68453
commitc24681ae2e1c96bd67c149cffa8f5ed394e68453[log] [tgz]
authorKeith Randall <khr@golang.org>Thu Oct 22 14:22:38 2015 -0700
committerKeith Randall <khr@golang.org>Wed Oct 28 17:00:31 2015 +0000
tree901661939332bae3a55be8102da790778f1161e8
parentd43f2e37edf4115e31a0c9218d87182d0aa1c4f0 [diff]
[dev.ssa] cmd/compile: remember names of values

For debugging, spill values to named variables instead of autotmp_
variables if possible.  We do this by keeping a name -> value map
for each function, keep it up-to-date during deadcode elim, and use
it to override spill decisions in stackalloc.

It might even make stack frames a bit smaller, as it makes it easy
to identify a set of spills which are likely not to interfere.

This just works for one-word variables for now.  Strings/slices
will be a separate CL.

Change-Id: Ie89eba8cab16bcd41b311c479ec46dd7e64cdb67
Reviewed-on: https://go-review.googlesource.com/16336
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: David Chase <drchase@google.com>
10 files changed
tree: 901661939332bae3a55be8102da790778f1161e8
  1. api/
  2. doc/
  3. lib/
  4. misc/
  5. src/
  6. test/
  7. .gitattributes
  8. .gitignore
  9. AUTHORS
  10. CONTRIBUTING.md
  11. CONTRIBUTORS
  12. favicon.ico
  13. LICENSE
  14. PATENTS
  15. README.md
  16. robots.txt
README.md

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