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Author SHA1 Message Date
Manman Ren
cbcf2bcc8a X86: do not fold load instructions such as [V]MOVS[S|D] to other instructions 
when the destination register is wider than the memory load.

These load instructions load from m32 or m64 and set the upper bits to zero,
while the folded instructions may accept m128.

rdar://12721174

llvm-svn: 168710
 2012-11-27 18:09:26 +00:00