[PATCH] Better __ashlDI3, __ashrDI3 and __lshrDI3 functions, plus fixed __bswapsi2 function

[Stefan Kanthak via Gcc-patches]

The implementation of the __ashlDI3(), __ashrDI3() and __lshrDI3() functions
is rather bad, it yields bad machine code at least on i386 and AMD64.
Since GCC knows how to shift integers twice the register size these functions
can be written as one-liners.

The implementation of the __bswapsi2() function uses SIGNED instead of
unsigned mask values; cf. __bswapdi2()

Stefan Kanthak

libgcc2.diff
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