Adjust stack alignment for local variables to work more like arguments.

This makes it easier to generate frame-pointer-relative addresses for ARM.

Prior to this we had stored char sized local variables in the highest
address of the 4-byte stack allocation. Now we store "char"s in the
lowest address of the 4-byte stack allocation, just like chars are
passed as arguments.

We now store global chars on byte boundaries.
1 file changed