Nuno Lopes 07594cba7c improve optimization of invoke instructions: ...

- simplifycfg:  invoke undef/null -> unreachable
 - instcombine:  invoke new  -> invoke expect(0, 0)  (an arbitrary NOOP intrinsic;  only done if the allocated memory is unused, of course)
 - verifier:  allow invoke of intrinsics  (to make the previous step work)

llvm-svn: 159146

2012-06-25 17:11:47 +00:00

12 KiB

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