search for: vgatherxxx

...he gather operation as an instruction which takes a vector of pointers, because that's too restrictive for architectures with 64bits pointers. What one most frequently wants to do in those architectures is to specify a 64bit scalar base pointer with a vector of 32bit offsets. This fits what the VGATHERxxx described in the spec provides, and this fits what e.g. we need for efficient texture lookups in software rendering. Whether this is represented by extending the load LLVM instruction to take "load pointer, offset", or by using a new "gather pointer, offset" LLVM instruction i...

Hi all, Intel has just revealed its AVX2 instruction set, to be supported by the 2013 Haswell architecture, and it's looking quite revolutionary: http://software.intel.com/en-us/forums/showthread.php?t=83399 <http://software.intel.com/en-us/forums/showthread.php?t=83399&o=a&s=lr> &o=a&s=lr It includes powerful 'gather' instructions, which allow reading