[PATCH] ARM: add VLA extension for WoA Itanium ABI

[Tim Northover]

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Comment at: lib/Target/ARM/ARMInstrInfo.td:5106
@@ +5105,3 @@
+                      [SDNPHasChain, SDNPSideEffect]>;
+let usesCustomInserter = 1, Uses = [R4] in
+  def __CHKSTK : PseudoInst<(outs), (ins), NoItinerary, [(__chkstk)]>;
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Tim Northover wrote:
> Similarly, this should probably be marked "Defs = [R4]".
Oh no, "Defs = [SP]" probably. Sorry.

http://reviews.llvm.org/D4050