On 03 Oct 2011, at 10:14, Florian Klämpfl wrote:
FPC doesn't do any optimization in procedures containing inline
assembler.
It does. But also assumes that all registers are used in assembler
blocks, unless the programmer specifies otherwise. If you change the
assembler block into
asm nop end [];
then the statement will optimized. Otherwise the compiler assumes that
the contents of eax may still be used inside the assembler block and
hence cannot remove its use.
The fact that the optimization is performed in case the used register
is ax instead of eax suggests a small bug.
Jonas_______________________________________________
fpc-devel maillist - fpc-devel@lists.freepascal.org
http://lists.freepascal.org/mailman/listinfo/fpc-devel
