This patch fixes a bug in the creation of shuffle masks when vectorizing
vectors in case of a diamond reuse with shuffle. The mask needs to
enumerate all elements of a vector, not treat the original vector value
as a single element. That is: if vectorizing two <2 x float> vectors
into a <4 x float> the mask needs to have 4 indices, not just 2.
This patch fixes:
third-party/unittest/googletest/include/gtest/gtest.h:1379:11:
error: comparison of integers of different signs: 'const unsigned
int' and 'const int' [-Werror,-Wsign-compare]
This patch fixes:
third-party/unittest/googletest/include/gtest/gtest.h:1379:11:
error: comparison of integers of different signs: 'const unsigned
int' and 'const int' [-Werror,-Wsign-compare]
llvm/include/llvm/Transforms/Vectorize/SandboxVectorizer/InstrMaps.h:57:12:
error: unused variable 'Pair' [-Werror,-Wunused-variable]
InstrMaps is a helper data structure that maps scalars to vectors and
the reverse. This is used by the vectorizer to figure out which vectors
it can extract scalar values from.
