[PATCH] [CodeGen] Emit Constants, not ScalarExprs, for "immediate"-constrained inlineasm arguments.

[Akira Hatanaka]

This patch looks fine to me.

Do we have to handle an expression like (long)&object - (long)&base when it's used with constraint "i"? I believe clang currently cannot handle this expression.


http://reviews.llvm.org/D10255

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