Merging r203581:

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r203581 | hans | 2014-03-11 11:49:24 -0400 (Tue, 11 Mar 2014) | 7 lines

X86: Don't generate 64-bit movd after cmpneqsd in 32-bit mode (PR19059)

This fixes the bug where we would bitcast the 64-bit floating point result
of cmpneqsd to a 64-bit integer even on 32-bit targets.

Differential Revision: http://llvm-reviews.chandlerc.com/D3009

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llvm-svn: 206071