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[ARM] NEON instructions were erroneously decoded from certain invalid encodings
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193705 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -829,7 +829,6 @@ DecodeStatus ThumbDisassembler::getInstruction(MCInst &MI, uint64_t &Size,
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Check(result, AddThumbPredicate(MI));
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return result;
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}
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}
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MI.clear();
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uint32_t NEONCryptoInsn = insn32;
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@ -852,6 +851,7 @@ DecodeStatus ThumbDisassembler::getInstruction(MCInst &MI, uint64_t &Size,
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Size = 4;
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return result;
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}
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}
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MI.clear();
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Size = 0;
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@ -33,3 +33,11 @@
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0xe0 0xef 0xa1 0x0e
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# CHECK: vmull.p64 q8, d16, d17
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# This used to be incorrectly decoded into an sha256h.32 [0x00,0xff,0x40,0x0c]
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# The other similar encodings are stc2 [0x00,0xfd,0x40,0x0c] and cdp2 [0x00,0xfe,0x40,0x0c]
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0x00 0xfc 0x40 0x0c
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# CHECK-NOT: sha256h.32
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# CHECK-NOT: stc2
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# CHECK-NOT: cdp2
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