tree 4c536fc4ab19c3f99b8dddfa8bafbe11deaec0d7
parent cff81076cbb4bbe3841942f14326f4401fa3c8df
author Alexandre Rames <alexandre.rames@linaro.org> 1447339459 +0000
committer Vladimir Marko <vmarko@google.com> 1447351130 +0000

Minor fixes and cleaning of arm64 static and direct calls code.

Fixes:
The proper way to avoid the MacroAssembler to generate code before or
after an instruction is to block the pools (usually via
`vixl::BlockPoolsScope`). Here we can use
`vixl::SingleEmissionCheckScope`, that checks we generate only one
instruction and also blocks the pools.
In practice the current code would have worked fine because VIXL would
not have generated anything after `Bl()` or `Ldr()`, but that was not
guaranteed.

Cleaning:
- `XRegisterFrom()` returns an X register. Calling `.X()` is not
  required.
- Since we are sure (after the previous fixes) that nothing will be
  emitted around the instructions we care about, update the code to
  bind labels before the instructions for simplicity.

Change-Id: I42d49976721e380e66bcd7a5b345f1777009434a