[Libre-soc-isa] [Bug 532] discuss iterative approach for statistical analysis of effectiveness of Compressed PowerISA encoding

bugzilla-daemon at libre-soc.org bugzilla-daemon at libre-soc.org
Mon Nov 23 05:41:48 GMT 2020


--- Comment #14 from Alexandre Oliva <oliva at gnu.org> ---
Created attachment 121
  --> https://bugs.libre-soc.org/attachment.cgi?id=121&action=edit
python program for insn histogram with per-operand counts

Here's a python script that counts occurrences of raw opcodes (getting the same
totals as with the objdump -M histogram patch) and, within them, counts
occurrences of each operand (registers, conditions, and bit-lengths of
immediates, offsets, and branch ranges).

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