On Thursday, 29 de December de 2011 17.00.09, Thiago Macieira wrote: > 1) Drop the MMX code and the 3dNow! extensions now
Report. These are the functions being dropped and their impact:
[where XXX is mmx, sse, mmx3dnow and sse3dnow, YYY are composition modes]
- qt_blend_color_argb_XXX
Impect: none, qt_blend_color_argb in qdrawhelper.cpp is vectorised
- qt_blend_rgb32_on_rgb32_XXX
Impact: none, there's qt_blend_rgb32_on_rgb32_sse2
- qt_blend_argb32_on_argb32_XXX
Impact: none, there's a function in SSE2 and SSSE3
- comp_func_solid_YYY<XXX>
- comp_func_YYY<XXX>
- rasterop_solid_YYY<XXX>:
Impact: none, the qdrawhelper.cpp functions are vectorised; some of the
comp_func functions have SSE2 specialised implementations.
Someone should benchmark the SSE2 handwritten code with the vectorised code by
the compiler.
--
Thiago Macieira - thiago.macieira (AT) intel.com
Software Architect - Intel Open Source Technology Center
Intel Sweden AB - Registration Number: 556189-6027
Knarrarnäsgatan 15, 164 40 Kista, Stockholm, Sweden
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