Use a less compiler-specific way for preventing inlining / tail-call optimization.

Use a less compiler-specific way for preventing inlining / tail-call optimization.

The current method is MSVS-specific. With just NOINLINE, clang still
does a tail call, which also prevents a stack frame, so also add some
dummy machinery that makes the tail-call optimization impossible.

BUG=469813
Committed: https://crrev.com/916eb91eabfed357395b5f0aa26490a0469ce081
Cr-Commit-Position: refs/heads/master@{#321895}

[Nico, 2015-03-23 20:44:01]

thakis@chromium.org changed reviewers:
+ rnk@chromium.org

[Reid Kleckner, 2015-03-23 21:11:52]

lgtm

[Nico, 2015-03-23 21:24:13]

The CQ bit was checked by thakis@chromium.org

[commit-bot: I haz the power, 2015-03-23 21:24:40]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1029183002/1

[Nico, 2015-03-23 21:27:57]

The CQ bit was unchecked by thakis@chromium.org

[Nico, 2015-03-23 22:15:45]

i tweaked this to be slightly less gross and more robust, based on majnemer's
suggestion

[Nico, 2015-03-23 22:15:48]

The CQ bit was checked by thakis@chromium.org

[Nico, 2015-03-23 22:15:49]

The patchset sent to the CQ was uploaded after l-g-t-m from rnk@chromium.org
Link to the patchset: https://codereview.chromium.org/1029183002/#ps20001
(title: "nicer")

[commit-bot: I haz the power, 2015-03-23 22:16:06]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1029183002/20001

[commit-bot: I haz the power, 2015-03-23 22:30:41]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-03-23 22:30:42]

Try jobs failed on following builders:
  linux_android_rel_ng on tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_android_r...)

[Nico, 2015-03-23 22:43:50]

The CQ bit was checked by thakis@chromium.org

[Nico, 2015-03-23 22:43:51]

The patchset sent to the CQ was uploaded after l-g-t-m from rnk@chromium.org
Link to the patchset: https://codereview.chromium.org/1029183002/#ps40001
(title: "gcccccccc")

[commit-bot: I haz the power, 2015-03-23 22:44:43]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1029183002/40001

[commit-bot: I haz the power, 2015-03-23 23:23:07]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2015-03-23 23:23:54]

Patchset 3 (id:??) landed as
https://crrev.com/916eb91eabfed357395b5f0aa26490a0469ce081
Cr-Commit-Position: refs/heads/master@{#321895}

[Reid Kleckner, 2015-11-05 00:07:29]

Akira is adding a "disable_tail_calls" attribute to clang that we could use
instead. It's not portable across compilers, though, and these volatile stores
are.