tree 0b43b7861241c1c7ae803cb897c5cce923e4b73c
parent 729b5f6cf2dec861f70db54d02f245f4338f5e60
author Andrew Scull <ascull@google.com> 1438875713 -0700
committer Andrew Scull <ascull@google.com> 1438875713 -0700

Introduce the ability to insert IACA (Intel Architecture Code Analyzer) marks.

The IACI marks identify the code which should be analyzed with the IACA.

The generated binaries are not executable due to the marks. This feature should
only be used during develpoment when analyzing generated code so it is protected
behind the --allow-iaca-marks flag.

ScopedIacaMark is a helper class which opens mark and closes it at the end of
the scope. This is useful when there are many returns as you don't have to write
`_iaca_end()` before them all.

BUG=
R=stichnot@chromium.org

Review URL: https://codereview.chromium.org/1260093003.