Merging r236307:

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r236307 | thomas.stellard | 2015-04-30 23:44:09 -0400 (Thu, 30 Apr 2015) | 4 lines

R600/SI: Add VCC as an implict def of SI_KILL

When SI_KILL has a register operand, its lowered form writes to vcc.

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llvm-svn: 236452