[Bug middle-end/28690] [4.2 Regression] Performace problem with indexed load/stores on powerpc

bergner at vnet dot ibm dot com gcc-bugzilla@gcc.gnu.org
Tue Sep 5 20:01:00 GMT 2006



------- Comment #7 from bergner at vnet dot ibm dot com  2006-09-05 20:01 -------
Well, to get REG_POINTER regs to be the first operand, we'd need to increase
their commutative_operand_precedence.  I tried that change already, but that
led to an infinite recursion loop while attempting to simplify the rtl. As you
said, the current ordering seems to be relied upon by the code for
simplifications.

My rs6000_legitimize_address change is still running through the testsuite.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28690



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