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Thanks for the -m tip to pass llvm options. Why is it not documented anywhere. See http://clang.llvm.org/docs/UsersManual.html#commandline <http://clang.llvm.org/docs/UsersManual.html#commandline>David On Fri, Oct 29, 2010 at 2:17 AM, Benjamin Kramer <benny.kra at googlemail.com>wrote: > > On 29.10.2010, at 09:26, Nick Lewycky wrote: > > > * If clang -O2 worked by

On 29.10.2010, at 09:26, Nick Lewycky wrote: > * If clang -O2 worked by running 'opt' and 'llc' under the hood, we > could tell it to pass a flag along to them, but it doesn't. As it > stands, you can't turn -enable-tbaa on when running clang. > > So, putting that together, one way to do it is: > > clang -O2 -fstrict-aliasing foo.c -flto -c -o

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