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dim
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2017-09-05T17:35:33.851991Z
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MFC r323001:

In compiler-rt, a few assembler implementations for i386 floating point
conversion functions use SSE2 instructions, but these are not guarded by
#ifdef __SSE2__, and there is no implementation using general purpose
registers.  For these functions, use the generic C variants instead,
otherwise they will cause SIGILL on older processors.

Reported by:  bsdpr@phoe.frmug.org
PR:           221733

MFC r323014:

Follow-up to r323001: if the actually selected CPUTYPE is capable of
SSE2 instructions, we can use them.

Suggested by: jkim

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