Loop::hasLoopInvariantOperands method. Remove
a useless and confusing Loop::isLoopInvariant(Instruction)
method, which didn't do what you thought it did.
No functionality change.
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assertingvh so we get a violent explosion if the pointer dangles.
2) Fix AliasSetTracker::deleteValue to remove call sites with
by-pointer comparisons instead of by-alias queries. Using
findAliasSetForCallSite can cause alias sets to get merged
when they shouldn't, and can also miss alias sets when the
call is readonly.
#2 fixes PR6889, which only repros with a .c file :(
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not part of the IR, are not uniqued, and may be safely RAUW'd.
This replaces a variety of alternate mechanisms for achieving
the same effect.
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decomposition that it is doing is very basicaa specific and is only used
by basicaa.
Now with less tree breakingness.
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expression being loop invariant is not equivalent to the property of
properly dominating the loop header.
Other optimizations have also made this optimization less important.
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since they can support trivial implementations. This avoids potentially
expensive traversals of the operands.
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confusing to have different arguments for the same virtual
function at different levels of the class hierarchy.
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std::deque, since this is a stack and only supports push/pop on
one end, and remove an unimplemented declaration.
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eliminate several const_casts.
Make CallSite implicitly convertible to ImmutableCallSite.
Rename the getModRefBehavior for intrinsic IDs to
getIntrinsicModRefBehavior to avoid overload ambiguity with CallSite,
which happens to be implicitly convertible to bool.
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of Value deletions and RAUWs, instead of relying on ScalarEvolution's
Scalars map being notified, as that's complicated at best, and
insufficient in general.
This means SCEVUnknown needs a non-trivial destructor, so introduce
a mechanism to allow ScalarEvolution to locate all the SCEVUnknowns.
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extend it to handle the case where multiple RAUWs affect a single
SCEVUnknown.
Add a ScalarEvolution unittest to test for this situation.
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* contains(Loop), * getOutermostLoop()
* Improve getNameStr() to return a sensible name, if basic blocks are not named.
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that the values they refer to aren't being deleted underneath them.
Make sure these containters get cleared by clear(), which IndVarSimplify
and LSR both use before deleting instructions.
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