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Johnny Chen
e4000595fb
CPS3p: Let's reject impossible imod values by returning false from the DisassembleMiscFrm() function.
Fixed rdar://problem/9179416 ARM disassembler crash: "Unknown imod operand" (fuzz testing) Opcode=98 Name=CPS3p Format=ARM_FORMAT_MISCFRM(26) 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 ------------------------------------------------------------------------------------------------- | 1: 1: 1: 1| 0: 0: 0: 1| 0: 0: 0: 0| 0: 0: 1: 0| 0: 0: 0: 1| 1: 1: 0: 0| 1: 0: 0: 1| 0: 0: 1: 1| ------------------------------------------------------------------------------------------------- Before: cpsUnknown imod operand UNREACHABLE executed at /Volumes/data/lldb/llvm/lib/Target/ARM/InstPrinter/../ARMBaseInfo.h:123! After: /Volumes/data/Radar/9179416/mc-input-arm.txt:1:1: warning: invalid instruction encoding 0x93 0x1c 0x2 0xf1 ^ git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128192 91177308-0d34-0410-b5e6-96231b3b80d8
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