Files
sdk/runtime/vm
fschneider@google.com 15dfa97ab6 Fix bug and refactor optimized try-catch.
When untagged values flow into a exception-throwing instruction
 they need to be converted eagerly. Catch block entries assume all
 values are tagged at the entry.

 I changed the generation of moves at throwing
 instructions in try-catch: Instead of manuallu emitting moves,
 construct a parallel move and use the resolver to emit the native code.
 This eliminates a lot of duplicated code from all platforms.

 It will also allow to re-use stack space that is currently allocated
 separately for each individual try-catch in a function.

 I added a few more unrelated minor changes in various parts of the VM
 * Simpilify guard code generation
 * Resolve refactoring TODO in deoptimization
 * Improve names

R=johnmccutchan@google.com

Review URL: https://codereview.chromium.org//125103002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@31536 260f80e4-7a28-3924-810f-c04153c831b5
2014-01-07 09:58:45 +00:00
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