--- Comment #4 from pinskia at gcc dot gnu dot org 2008-04-25 22:23 ---
*** Bug 36051 has been marked as a duplicate of this bug. ***
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36048
--- Comment #3 from pinskia at gcc dot gnu dot org 2008-04-25 20:59 ---
>It often required to modify/reuse an input register inside the inline assembly
statement.
Just a temporary variable then. The compiler will do its job. Make sure you
mark it as an early clobber too :).
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h
--- Comment #2 from jlima at sim dot ul dot pt 2008-04-25 20:56 ---
If this is the expected behavior... then ok.
I saw this as a bug because it is not possible to add the register to the
clobbered registers list (gcc will complain with: "error: can't find a register
in class 'DREG' while
--- Comment #1 from pinskia at gcc dot gnu dot org 2008-04-25 19:01 ---
>that the register %edx was not modified by the inline assembly statement.
Yes that is because your constraints only say the inline-asm reads the value
and not modifies it.
>: : "a" (d1), "c" (d2),
