// restricted GPR register class. Many Thumb2 instructions allow the full
// register range for operands, but have undefined behaviours when PC
-// or SP (R13 or R15) are used. The ARM ARM refers to these operands
+// or SP (R13 or R15) are used. The ARM ISA refers to these operands
// via the BadReg() pseudo-code description.
def rGPR : RegisterClass<"ARM", [i32], 32, [R0, R1, R2, R3, R4, R5, R6,
R7, R8, R9, R10, R11, R12, LR]> {