[PATCH] [ARM] Add v8.1a "Privileged Access Never" extension

[Vladimir Sukharev]

REPOSITORY
  rL LLVM

================
Comment at: lib/Target/ARM/ARMInstrInfo.td:4395
@@ -4368,2 +4394,3 @@
                         IIC_iTSTi, IIC_iTSTr, IIC_iTSTsr,
-                      BinOpFrag<(ARMcmpZ (and_su node:$LHS, node:$RHS), 0)>, 1>;
+                      BinOpFrag<(ARMcmpZ (and_su node:$LHS, node:$RHS), 0)>, 1,
+                      "DecodeTSTInstruction">;
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jmolloy wrote:
> Why is this change required?
to correctly pass tests added in test/MC/Disassembler/ARM/armv8.1a.txt

http://reviews.llvm.org/D8504

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