[Bug tree-optimization/45633] [4.6 regression] internal compiler error: verify_stmts failed

[jakub at gcc dot gnu dot org]

------- Comment #7 from jakub at gcc dot gnu dot org  2010-09-14 16:20 -------
Created an attachment (id=21795)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21795&action=view)
gcc46-pr45633-2.patch

Another fix, this one keeps disallowing such MINUS_EXPR.  Unfortunately the
generated code is worse, apparently no RTL pass is able to do that
tmp1 = -b
r = a + tmp1
into
r = a - b
transformation for vector modes.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45633