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6182f5bef4
For register-rich ABIs (e.g. x86-64 and ARM), QueryInterface's incoming registers are going to look like: arg register 1: |this| arg register 2: the IID of interest arg register 3: the outparam instance pointer Most of our QI implementations call NS_TableDrivenQI, which expects arguments like so: arg register 1: |this| arg register 2: the QITableEntry table arg register 3: the IID of interest arg register 4: the outparam instance pointer So we're going to have to do a register shuffle of the IID and the outparam to be able to load the QITableEntry pointer before calling into NS_TableDrivenQI. This patch reorders the argument list of NS_TableDrivenQI so that the first three arguments match the order that QueryInterface receives them in. Then your typical QueryInterface implementation becomes: - load local |table| - tail-call NS_TableDrivenQI Eliminating the register shuffling reduces text size by 12K on an Android ARM build. |
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| .. | ||
| analysis | ||
| base | ||
| build | ||
| components | ||
| doc | ||
| ds | ||
| glue | ||
| idl-parser | ||
| io | ||
| libxpt/xptcall | ||
| reflect | ||
| sample | ||
| string | ||
| system | ||
| tests | ||
| threads | ||
| tools | ||
| typelib | ||
| windbgdlg | ||
| xpidl | ||
| Makefile.in | ||
| moz.build | ||
| xpcom-config.h.in | ||
| xpcom-private.h.in | ||