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go / go / 75ce89c20dab10857ab0b5102001b34767c45b6e
commit75ce89c20dab10857ab0b5102001b34767c45b6e[log] [tgz]
authorKeith Randall <khr@golang.org>Fri Sep 16 13:50:18 2016 -0700
committerKeith Randall <khr@golang.org>Mon Sep 19 16:00:13 2016 +0000
treeb6d0086e53b0187137ca606d54e10d799d7f2761
parent2679282da4e437ee086ec791ab73181c39ae3463 [diff]
cmd/compile: cache CFG-dependent computations

We compute a lot of stuff based off the CFG: postorder traversal,
dominators, dominator tree, loop nest.  Multiple phases use this
information and we end up recomputing some of it.  Add a cache
for this information so if the CFG hasn't changed, we can reuse
the previous computation.

Change-Id: I9b5b58af06830bd120afbee9cfab395a0a2f74b2
Reviewed-on: https://go-review.googlesource.com/29356
Reviewed-by: David Chase <drchase@google.com>
18 files changed
tree: b6d0086e53b0187137ca606d54e10d799d7f2761
  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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