diff options
Diffstat (limited to 'llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp')
| -rw-r--r-- | llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp | 32 |
1 files changed, 30 insertions, 2 deletions
diff --git a/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp b/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp index 1a6f8e763e2..233a5c7fee1 100644 --- a/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp +++ b/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp @@ -1245,6 +1245,20 @@ public: return ARM_AM::getSOImmVal(Value) == -1 && ARM_AM::getSOImmVal(-Value) != -1; } + bool isThumbModImmNeg1_7() const { + if (!isImm()) return false; + const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm()); + if (!CE) return false; + int32_t Value = -(int32_t)CE->getValue(); + return 0 < Value && Value < 8; + } + bool isThumbModImmNeg8_255() const { + if (!isImm()) return false; + const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm()); + if (!CE) return false; + int32_t Value = -(int32_t)CE->getValue(); + return 7 < Value && Value < 256; + } bool isConstantPoolImm() const { return Kind == k_ConstantPoolImmediate; } bool isBitfield() const { return Kind == k_BitfieldDescriptor; } bool isPostIdxRegShifted() const { return Kind == k_PostIndexRegister; } @@ -2035,6 +2049,20 @@ public: Inst.addOperand(MCOperand::createImm(Enc)); } + void addThumbModImmNeg8_255Operands(MCInst &Inst, unsigned N) const { + assert(N == 1 && "Invalid number of operands!"); + const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm()); + uint32_t Val = -CE->getValue(); + Inst.addOperand(MCOperand::createImm(Val)); + } + + void addThumbModImmNeg1_7Operands(MCInst &Inst, unsigned N) const { + assert(N == 1 && "Invalid number of operands!"); + const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm()); + uint32_t Val = -CE->getValue(); + Inst.addOperand(MCOperand::createImm(Val)); + } + void addBitfieldOperands(MCInst &Inst, unsigned N) const { assert(N == 1 && "Invalid number of operands!"); // Munge the lsb/width into a bitfield mask. @@ -2141,7 +2169,7 @@ public: // The operand is actually a t2_so_imm, but we have its bitwise // negation in the assembly source, so twiddle it here. const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm()); - Inst.addOperand(MCOperand::createImm(~CE->getValue())); + Inst.addOperand(MCOperand::createImm(~(uint32_t)CE->getValue())); } void addT2SOImmNegOperands(MCInst &Inst, unsigned N) const { @@ -2149,7 +2177,7 @@ public: // The operand is actually a t2_so_imm, but we have its // negation in the assembly source, so twiddle it here. const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm()); - Inst.addOperand(MCOperand::createImm(-CE->getValue())); + Inst.addOperand(MCOperand::createImm(-(uint32_t)CE->getValue())); } void addImm0_4095NegOperands(MCInst &Inst, unsigned N) const { |
