Andrew Kelley a71bfc249d compiler-rt: better way to do the ABI required on Windows ...

This removes the compiler_rt.setXmm0 hack. Instead, for
the functions that use i128 or u128 in their parameter and
return types, we use `@Vector(2, u64)` which generates
the LLVM IR `<2 x i64>` type that matches what Clang
generates for `typedef int ti_int __attribute__ ((mode (TI)))`
when targeting Windows x86_64.

2019-04-10 18:47:14 -04:00

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