[Bug inline-asm/43110] Lack of dependency between %rax and %eax in inline assembly

[pinskia at gcc dot gnu dot org]

------- Comment #2 from pinskia at gcc dot gnu dot org  2010-02-17 23:18 -------
This is all documented at
http://gcc.gnu.org/onlinedocs/gcc-4.4.3/gcc/Modifiers.html

"Means (in a particular alternative) that this operand is an earlyclobber
operand, which is modified before the instruction is finished using the input
operands. Therefore, this operand may not lie in a register that is used as an
input operand or as part of any memory address. "


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43110