Hi
1)What is an "issues group" ?
I think its definition is :
" Processors contain more than one
execution units like integer execution unit, floating
exection unit, memory read/write execution
units.....etc.
An issue group is a list of assembly instructions
which can be issued simultaneously to different
execution units at same time so that all execution
units are busy."
Am I right???
2) Compilers can make use of it by reodering
instructions so that all execution units are busy.
Is GCC exploiting such feature????
Thanks in advane.
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