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However, the syntax has also been somewhat inaccessible. Those constraint letters were often undocumented, and are still somewhat mysterious to users, while the use of strings for instructions makes the construction of longer assembly sequences a rather difficult undertaking. In addition, the "capture" of GCC's constraint letters and pattern syntax into source code has the potential to reduce our flexibility to change compiler internals later.
And if the people wants to program in asm, they should not be using a compiler to do the work.
Thanks, Andrew Pinski
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