diff options
Diffstat (limited to 'lib/Target/ARM/AsmParser/ARMAsmParser.cpp')
-rw-r--r-- | lib/Target/ARM/AsmParser/ARMAsmParser.cpp | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp index 4491c50..da07ea0 100644 --- a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp +++ b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp @@ -427,6 +427,14 @@ public: int64_t Value = CE->getValue(); return Value >= 0 && Value < 32; } + bool isImm1_32() const { + if (Kind != Immediate) + return false; + const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm()); + if (!CE) return false; + int64_t Value = CE->getValue(); + return Value > 0 && Value < 33; + } bool isImm0_65535() const { if (Kind != Immediate) return false; @@ -690,6 +698,14 @@ public: addExpr(Inst, getImm()); } + void addImm1_32Operands(MCInst &Inst, unsigned N) const { + assert(N == 1 && "Invalid number of operands!"); + // The constant encodes as the immediate-1, and we store in the instruction + // the bits as encoded, so subtract off one here. + const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm()); + Inst.addOperand(MCOperand::CreateImm(CE->getValue() - 1)); + } + void addImm0_65535Operands(MCInst &Inst, unsigned N) const { assert(N == 1 && "Invalid number of operands!"); addExpr(Inst, getImm()); |