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3 Commits

Author SHA1 Message Date
Eli Friedman 409943efcb Don't emit nsw flags for vector operations; there's basically no benefit, and a lot of downside (like PR9850, which is about clang's xmmintrin.h making an unexpected transformation on an expression involving _mm_add_epi32). 
llvm-svn: 131000
 2011-05-06 18:04:18 +00:00
Anton Yartsev 28ccef788b supported: AltiVec vector initialization with a single literal according to PIM section 2.5.1 - after initialization all elements have the value specified by the literal 
llvm-svn: 128375
 2011-03-27 09:32:40 +00:00
John McCall 875679eea0 Fix the constant evaluator for AltiVec-style vector literals so that the 
vector is filled with the given constant;  we were just initializing the
first element.

llvm-svn: 105824
 2010-06-11 17:54:15 +00:00