dead stores in msxml3

[ricardo filipe]

hi leslie.
i'm tracking some dead stores with Clang and there are some in dlls/msxml3/saxreader.c
i'm hoping you can tell me if the stores are to be removed for performance or if they should be checked in each iteration for correctness:
file dlls/msxml3/saxreader.c
lines:
1163
1166
1213
1216

regards,
ricardo



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[Piotr Caban]

Hi Ricardo,
There are few things that needs to be changed in 'dlls/msxml3: check dead 
stores (llvm/clang)' patch. Some of the 'hr != S_OK' should not be replaced 
with 'FAILED(hr)'. Sometimes the parser should stop if user returns anything 
except S_OK.

Changes in following functions are incorrect:
 - libxmlStartDocument
 - libxmlEndDocument
 - libxmlStartElementNS
 - libxmlEndElementNS
 - libxmlCharacters
> i'm tracking some dead stores with Clang and there are some in
> dlls/msxml3/saxreader.c i'm hoping you can tell me if the stores are to be
> removed for performance or if they should be checked in each iteration for
> correctness: file dlls/msxml3/saxreader.c
> lines:
> 1163
> 1166
> It should be checked in every iteration, if something goes wrong 
> format_error_message_from_id should be called (it stops the parser and sets 
> error code).  The parser should stop if user returns anything except S_OK.
> 1213
> 1216
> The same here.

Regards,
Piotr Caban