Add assembly parsing support for "msr" and also fix its encoding. Also add
testcases for the disassembler to make sure it still works for "msr".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125948 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/InstPrinter/ARMInstPrinter.cpp b/lib/Target/ARM/InstPrinter/ARMInstPrinter.cpp
index aace2f9..1499da0 100644
--- a/lib/Target/ARM/InstPrinter/ARMInstPrinter.cpp
+++ b/lib/Target/ARM/InstPrinter/ARMInstPrinter.cpp
@@ -397,7 +397,14 @@
void ARMInstPrinter::printMSRMaskOperand(const MCInst *MI, unsigned OpNum,
raw_ostream &O) {
const MCOperand &Op = MI->getOperand(OpNum);
- unsigned Mask = Op.getImm();
+ unsigned SpecRegRBit = Op.getImm() >> 4;
+ unsigned Mask = Op.getImm() & 0xf;
+
+ if (SpecRegRBit)
+ O << "spsr";
+ else
+ O << "cpsr";
+
if (Mask) {
O << '_';
if (Mask & 8) O << 'f';