Find the index of the flag word operand that corresponds to operand OpIdx on an inline asm instruction. Returns -1 if getOperand(OpIdx) does not belong to an inline asm operand group.
Declared in <llvm/CodeGen/MachineInstr.h>
int
findInlineAsmFlagIdx(
unsigned int OpIdx,
unsigned int* GroupNo = nullptr) const;
If GroupNo is not NULL, it will receive the number of the operand group containing OpIdx.