Simon Pilgrim b298308ba2 [CostModel][X86] fptosi/fptoui to i8/i16 are truncated from fptosi to i32 ...

Provide a generic fallback that performs the fptosi to i32 types, then truncates to sub-i32 scalars.

These numbers can be tweaked for specific sse levels, but we should get the default handling in place first.

2021-07-06 17:28:03 +01:00

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