Nuno Lopes 2710f1b049 canonicalize: ...

-%a + 42
into
42 - %a

previously we were emitting:
-(%a + 42)

This fixes the infinite loop in PR12338. The generated code is still not perfect, though.
Will work on that next

llvm-svn: 158237

2012-06-08 22:30:05 +00:00

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