[Bug middle-end/28690] [4.2 Regression] Performace problem with indexed load/stores on powerpc
bonzini at gnu dot org
gcc-bugzilla@gcc.gnu.org
Tue Sep 5 19:25:00 GMT 2006
------- Comment #6 from bonzini at gnu dot org 2006-09-05 19:25 -------
To clarify, I make this suggestion because I think that we were getting it
right pre-4.2 just out of luck.
I also thought about having a lower commutative_operand_precedence for
REG_POINTER regs than normal regs, but in fact regs need to have the same
precedence as other rtx's of class RTX_OBJ, or you get pessimization on x86
(e.g. on crafty).
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28690
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