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375cbe4143
instruction (vmaddfp) to conform with IEEE to ensure the sign of a zero result when resulting product is -0.0. The -0.0 vector addend to vmaddfp is generated by a creating a vector with full bits sets and then shifting each elements by 31-bits to the left, resulting in a vector of 0x80000000 (or -0.0 as float). The 'buildvec_canonicalize.ll' was adjusted to reflect this change and the 'vec_mul.ll' was complemented with the float vector multiplication test. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168998 91177308-0d34-0410-b5e6-96231b3b80d8