[Bug tree-optimization/19038] [4.0 Regression] out-of ssa causing loops to have more than one BB

[mustafa at il dot ibm dot com]

------- Additional Comments From mustafa at il dot ibm dot com  2004-12-24 12:13 -------
Doing loop header copying in RTL works around this problem, doing so
gain us improvements of 3.9% for SPECINT on a G5 machine and a 66%
for gcc benchmark.

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19038