code were working correctly, it would be a no-op, but it's not really a
proper fix. That said, I don't really want to touch the enum code at
the moment because I don't understand it very well, and this seems to
be a relatively visible regression.
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the containing block. Introduce a new getCurFunctionOrMethodDecl
method to check to see if we're in a function or objc method.
Minor cleanups to other related places. This fixes rdar://6405429.
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specific targets default them to on. Default blocks to on on 10.6 and later.
Add a -fblocks option that allows the user to override the target's default.
Use -fblocks in the various testcases that use blocks.
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instead of converting them to strings first. This also fixes a
bunch of minor inconsistencies in the diagnostics emitted by clang
and adds a bunch of FIXME's to DiagnosticKinds.def.
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expected-foo strings. Now the only allowed characters between
expected-error and {{ is whitespace.
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__builtin_prefetch code to only emit one diagnostic per builtin_prefetch.
While this has nothing to do with the rest of the patch, the code seemed
like overkill when I was updating it.
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are trying to use the old GCC "casts as lvalue" extension. We don't and
will hopefully never support this.
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some more bullet-proofing/enhancements for tryEvaluate. This shouldn't
cause any behavior changes except for handling cases where we were
crashing before and being able to evaluate a few more cases in tryEvaluate.
This should settle the minor mess surrounding r59196.
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little rude; I figure it's cleaner to just back this out now so
it doesn't get forgotten or mixed up with other checkins.
The modification to isICE is simply wrong; I've added a test that the
change to isICE breaks.
I'm pretty sure the modification to tryEvaluate is also wrong.
At the very least, there's some serious miscommunication going on here,
as this is going in exactly the opposite direction of r59105. My
understanding is that tryEvaluate is not supposed to care about side
effects. That said, a lot of the clients to tryEvaluate are
expecting it to enforce a no-side-effects policy, so we probably need
another method that provides that guarantee.
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- Evaluation of , operator used bogus assumption that LHS could be
evaluated as an integral expression even though its type is
unspecified.
This change is making isICE very permissive of the LHS in non-evaluated
contexts because it is not clear what predicate we would use to reject
code here. The standard didn't offer me any guidance; opinions?
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This pushes it a lot closer to being able to deal with most of the stuff
CodeGen's constant expression evaluator knows how to deal with. This
also fixes PR3003.
The test could possibly use some improvement, but this'll work for now.
Test 6 is inspired by PR3003; the other tests are mostly just designed
to exercise the new code. The reason for the funny structure of the
tests is that type fixing for arrays inside of structs is the only place
in Sema that calls tryEvaluate, at least for the moment.
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Chris Lattner
Anders Carlsson
Steve Naroff
Eli Friedman
Sebastian Redl
Nuno Lopes
Daniel Dunbar
Argyrios Kyrtzidis