Regression due to 0c44c2d0f459 x86: Use asm goto to implement bettermodify_and_test() functions

[H. Peter Anvin]

Hi guys,

0c44c2d0f459 x86: Use asm goto to implement better modify_and_test()
functions

causes a regression, because it incorrectly changed the constraints of
bitops.

Specifically, the GEN_BINARY_RMWcc() hardcodes a constraint as "er", but
it needs to be "Ir" for the bitops themselves.  "I" is correct (as
opposed to "J" even on 64 bits, because we only generate the 64-bit
version when we have a register operand.

Unfortunately there isn't a way we can get gcc+gas to generate a version
with an offset pointer.

	-hpa


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