Sanjay Patel 373af89ec1 [ValueTracking] add recursion depth param to matchSelectPattern ... We're getting bug reports: https://bugs.llvm.org/show_bug.cgi?id=35807 https://bugs.llvm.org/show_bug.cgi?id=35840 https://bugs.llvm.org/show_bug.cgi?id=36045 ...where we blow up the stack in value tracking because other passes are sending in selects that have an operand that is itself the select. We don't currently have a reliable way to avoid analyzing dead code that may take non-standard forms, so bail out when things go too far. This mimics the recursion depth limitations in other parts of value tracking. Unfortunately, this pushes the underlying problems for other passes (jump-threading, simplifycfg, correlated-propagation) into hiding. If someone wants to uncover those again, the first draft of this patch on Phab would do that (it would assert rather than bail out). Differential Revision: https://reviews.llvm.org/D42442 llvm-svn: 323331		2018-01-24 15:20:37 +00:00
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assume.ll
deref-bitcast-of-gep.ll
dereferenceable-and-aligned.ll
get-pointer-base-with-const-off.ll
known-bits-from-range-md.ll
known-non-equal.ll
known-nonnull-at.ll
known-power-of-two.ll
known-signbit-shift.ll
knownnonzero-shift.ll
knownzero-addrspacecast.ll
knownzero-shift.ll
memory-dereferenceable.ll	Give up on array allocas in getPointerDereferenceableBytes	2017-12-20 10:01:30 +00:00
monotonic-phi.ll
non-negative-phi-bits.ll	[ValueTracking] Adding missed lit-test for commit r316208	2018-01-04 10:02:50 +00:00
pr23011.ll
select-pattern.ll	[ValueTracking] add recursion depth param to matchSelectPattern	2018-01-24 15:20:37 +00:00
signbits-extract-elt.ll