diff options
Diffstat (limited to 'llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp')
| -rw-r--r-- | llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp b/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp index 4f7f81477fc..da6b700e607 100644 --- a/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp +++ b/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp @@ -3118,9 +3118,10 @@ static int MatchCoprocessorOperandName(StringRef Name, char CoprocOp) { return -1; switch (Name[1]) { default: return -1; - // p10 and p11 are invalid for coproc instructions (reserved for FP/NEON) - case '0': return CoprocOp == 'p'? -1: 10; - case '1': return CoprocOp == 'p'? -1: 11; + // CP10 and CP11 are VFP/NEON and so vector instructions should be used. + // However, old cores (v5/v6) did use them in that way. + case '0': return 10; + case '1': return 11; case '2': return 12; case '3': return 13; case '4': return 14; @@ -3177,6 +3178,9 @@ ARMAsmParser::parseCoprocNumOperand(OperandVector &Operands) { int Num = MatchCoprocessorOperandName(Tok.getString(), 'p'); if (Num == -1) return MatchOperand_NoMatch; + // ARMv7 and v8 don't allow cp10/cp11 due to VFP/NEON specific instructions + if ((hasV7Ops() || hasV8Ops()) && (Num == 10 || Num == 11)) + return MatchOperand_NoMatch; Parser.Lex(); // Eat identifier token. Operands.push_back(ARMOperand::CreateCoprocNum(Num, S)); |
