[Bug tree-optimization/37916] [4.0 Regression] SSA names causing register pressure; unnecessarily many simultaneously "live" names.

[hp at gcc dot gnu dot org]

------- Comment #2 from hp at gcc dot gnu dot org  2008-10-25 20:22 -------
Created an attachment (id=16542)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16542&action=view)
Assembly output corresponding to gcc-3.2.1

For cris-axis-elf, with -O2 -march=v10 -fno-gcse -fno-reorder-blocks
(actually a quite modified local version, but supposedly no effects on this
code.)
Note that this version uses "only" three call-saved registers.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37916