Thumb2 assembly parsing and encoding for LDRBT.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139267 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
index 6df2d56..b66adfc 100644
--- a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
+++ b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
@@ -742,6 +742,14 @@
int64_t Val = Mem.OffsetImm->getValue();
return Val > -256 && Val < 256;
}
+ bool isMemPosImm8Offset() const {
+ if (Kind != Memory || Mem.OffsetRegNum != 0)
+ return false;
+ // Immediate offset in range [0, 255].
+ if (!Mem.OffsetImm) return true;
+ int64_t Val = Mem.OffsetImm->getValue();
+ return Val >= 0 && Val < 256;
+ }
bool isMemNegImm8Offset() const {
if (Kind != Memory || Mem.OffsetRegNum != 0)
return false;
@@ -1108,11 +1116,12 @@
Inst.addOperand(MCOperand::CreateImm(Val));
}
+ void addMemPosImm8OffsetOperands(MCInst &Inst, unsigned N) const {
+ addMemImm8OffsetOperands(Inst, N);
+ }
+
void addMemNegImm8OffsetOperands(MCInst &Inst, unsigned N) const {
- assert(N == 2 && "Invalid number of operands!");
- int64_t Val = Mem.OffsetImm ? Mem.OffsetImm->getValue() : 0;
- Inst.addOperand(MCOperand::CreateReg(Mem.BaseRegNum));
- Inst.addOperand(MCOperand::CreateImm(Val));
+ addMemImm8OffsetOperands(Inst, N);
}
void addMemUImm12OffsetOperands(MCInst &Inst, unsigned N) const {