tree 1f29c2467c8909ef0e0147f37f176caa1bcd2ccc
parent 1b66fdf3f33c72dfdda4d31f6f17b6a0d8607402
author Vladimir Marko <vmarko@google.com> 1463499010 +0100
committer Vladimir Marko <vmarko@google.com> 1464890660 +0100

Refactor handling of input records.

Introduce HInstruction::GetInputRecords(), a new virtual
function that returns an ArrayRef<> to all input records.
Implement all other functions dealing with input records as
wrappers around GetInputRecords(). Rewrite functions that
previously used multiple virtual calls to deal with input
records, especially in loops, to prefetch the ArrayRef<>
only once for each instruction.  Besides avoiding all the
extra calls, this also allows the compiler (clang++) to
perform additional optimizations.

This speeds up the Nexus 5 boot image compilation by ~0.5s
(4% of "Compile Dex File", 2% of dex2oat time) on AOSP ToT.

Change-Id: Id8ebe0fb9405e38d918972a11bd724146e4ca578