[Bug target/53914] poor code generated for offset addressing on ppc32

[amodra at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53914

Alan Modra <amodra at gmail dot com> changed:

           What    |Removed                     |Added
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             Target|                            |powerpc-linux

--- Comment #1 from Alan Modra <amodra at gmail dot com> 2012-07-10 13:32:47 
UTC ---
Appears to be caused by "o" constraint in movdi_internal32 used for gpr->mem
disallowing offsets larger than 32k-12 due to rs6000_mode_dependent_address. 
"m" is used for fpr->mem, so reload chooses a fpr.