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I came across this inline asm. I am not sure how it should look without this syntax… Could someone show it to me?
__asm__ volatile ("lock\n\tincl %0"
:"=m"(llvm_cbe_tmp__29)
:"m"(*(llvm_cbe_tmp__29))"cc");
However, because the operand is specified abstractly, the compiler will generate the code needed to reference it, even if that means a load and store. As a result it is possible that more than two instructions or an addressing mode will be added.