--- 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 fin
--- Comment #1 from pinskia at gcc dot gnu dot org 2010-02-17 23:15 ---
Your inline-asm is incorrect as you don't say that result is ax (including eax
and rax) is going to be early clobbered.
The inline-asm should be written as:
asm volatile (
"movq $0x01020304050