Perform a depth-first postorder traversal of the call graph of known
functions. Make an inlining decision based on the vector of argument
types at the call site, and cache inlining decisions. For positive
inlining decisions, cache the optimized function body specialized to
the receiver and argument types at the call site.
Future work:
* Real inlining heuristics.
* Propagate result types of inlined calls.
* Specialized for constant arguments when it makes sense.
* Performance improvements.
R=asgerf@google.com, sra@google.com
Committed: https://github.com/dart-lang/sdk/commit/d63053fea8731d2fb380022c1c3d296489d1c017
Review URL: https://codereview.chromium.org/1537663002 .
Kevin Millikin
044b283a3c