Re: [PATCH] KVM: 'asm' operand has impossible constraints

Paweł Sikora
2007-01-27T16:36:30Z

On Saturday 27 of January 2007 10:05:53 Avi Kivity wrote:

> "g" appears to be equivalent to "rmi", if "i" is impossible, gcc is free
> to use "r" or "m", no?

`r'
A register operand is allowed provided that it is in a general
register.
`g'
Any register, memory or immediate integer operand is allowed,
except for registers that are not general registers.

so, it looks like g == !r for registers ( not general vs. general regs ).