* gcc.target/cris/pr93372-2.c, gcc.target/cris/pr93372-5.c,
gcc.target/cris/pr93372-8.c: New tests.

These tests fails miserably both at being an example of cc0
eliminating compare instructions, and post-cc0-CRIS at showing a
significant improvement.  They're here to track suboptimal
comparison code for CRIS.