| commit | 26b3f66983f1ba44b72a04655d421f014bce4405 | |
| author | Max Wang <mwang@fb.com> | |
| Sat, 5 Mar 2016 16:29:32 +0000 (5 08:29 -0800) | ||
| committer | Hhvm Bot <hhvm-bot-bot@fb.com> | |
| Mon, 7 Mar 2016 18:36:16 +0000 (7 10:36 -0800) | ||
| tree | 359c9fb68bd6416dba34e9237cb6891202987f10 | treesnapshot (tar.gz zip) |
| parent | 13d7bd56749f7a56b34e3b7603336961629845b8 | commitdiff |
Improve idiom for getting the return address of a call{}
Summary:We sometimes need to track the return address of a call during codegen.
A number of such mechanisms already exists---e.g., for Fixups and catch
trace mappings.
We need another one for unique stubs, which just need to save the return
address without carrying any other metadata.
While we're there, document CGMeta.
Reviewed By: markw65
Differential Revision: D3011364
fb-gh-sync-id: f664f192dd8895ecbf494f15cabd6f265d644bc7
shipit-source-id: f664f192dd8895ecbf494f15cabd6f265d644bc7
Summary:We sometimes need to track the return address of a call during codegen.
A number of such mechanisms already exists---e.g., for Fixups and catch
trace mappings.
We need another one for unique stubs, which just need to save the return
address without carrying any other metadata.
While we're there, document CGMeta.
Reviewed By: markw65
Differential Revision: D3011364
fb-gh-sync-id: f664f192dd8895ecbf494f15cabd6f265d644bc7
shipit-source-id: f664f192dd8895ecbf494f15cabd6f265d644bc7