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Arnold Schwaighofer 3a1cb40149 ARM NEON: Merge a f32 bitcast of a v2i32 extractelt
A vectorized sitfp on doubles will get scalarized to a sequence of an
extract_element of <2 x i32>, a bitcast to f32 and a sitofp.
Due to the the extract_element, and the bitcast we will uneccessarily generate
moves between scalar and vector registers.

The patch fixes this by using a COPY_TO_REGCLASS and a EXTRACT_SUBREG to extract
the element from the vector instead.

radar://13191881

llvm-svn: 175520
2013-02-19 15:27:05 +00:00
2013-02-18 02:44:09 +00:00
2012-10-09 23:48:34 +00:00
2012-11-29 21:17:26 +00:00

Low Level Virtual Machine (LLVM)
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