diff options
| -rw-r--r-- | lib/Target/ARM/InstPrinter/ARMInstPrinter.cpp | 5 | ||||
| -rw-r--r-- | test/MC/Disassembler/ARM/invalid-IT-CC15.txt | 18 |
2 files changed, 22 insertions, 1 deletions
diff --git a/lib/Target/ARM/InstPrinter/ARMInstPrinter.cpp b/lib/Target/ARM/InstPrinter/ARMInstPrinter.cpp index a821192607..b0b1dbbefa 100644 --- a/lib/Target/ARM/InstPrinter/ARMInstPrinter.cpp +++ b/lib/Target/ARM/InstPrinter/ARMInstPrinter.cpp @@ -692,7 +692,10 @@ void ARMInstPrinter::printMSRMaskOperand(const MCInst *MI, unsigned OpNum, void ARMInstPrinter::printPredicateOperand(const MCInst *MI, unsigned OpNum, raw_ostream &O) { ARMCC::CondCodes CC = (ARMCC::CondCodes)MI->getOperand(OpNum).getImm(); - if (CC != ARMCC::AL) + // Handle the undefined 15 CC value here for printing so we don't abort(). + if ((unsigned)CC == 15) + O << "<und>"; + else if (CC != ARMCC::AL) O << ARMCondCodeToString(CC); } diff --git a/test/MC/Disassembler/ARM/invalid-IT-CC15.txt b/test/MC/Disassembler/ARM/invalid-IT-CC15.txt new file mode 100644 index 0000000000..17e25ead42 --- /dev/null +++ b/test/MC/Disassembler/ARM/invalid-IT-CC15.txt @@ -0,0 +1,18 @@ +# RUN: llvm-mc --disassemble %s -triple=thumbv7-unknown-unknown |& grep und +# rdar://10841671 + +0xe3 0xbf +0xdf 0xed 0x61 0x3b +0x71 0xee 0xe0 0x1b +0x72 0xee 0xa3 0x2b +0xdf 0xed 0x60 0x0b + +# This is test is dealing with a undefined condition code value of 15 in the +# above sequence of junk bytes and not allowing the disassembler to abort on +# printing the final instruction in this list. +# +# ittte al +# vldr d19, [pc, #388] +# vsub.f64 d17, d17, d16 +# vadd.f64 d18, d18, d19 +# vldr<und> d16, [pc, #384] |