[Bug target/54063] [4.8 regression] on powerpc64 gcc 4.8 generates larger code for global variable accesses than gcc 4.7

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54063

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

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--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-12-04 13:05:05 UTC ---
While the memory load is split already during reload, the set for &head is only
split during split2 pass, which is after postreload_cse (and gcse2) which are
the last CSE-ish passes I think.  So perhaps you could tweak machine reorg pass
to handle some of the easy cases, or what exactly is the reason for running
split2 after postreload CSE instead of before it?