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Author SHA1 Message Date
Matthew Simpson 9eed0bee3d [LV] Handle external uses of floating-point induction variables 
Reference: https://bugs.llvm.org/show_bug.cgi?id=32758
Differential Revision: https://reviews.llvm.org/D32445

llvm-svn: 301428
 2017-04-26 16:23:02 +00:00
Elena Demikhovsky 376a18bd92 [Loop Vectorizer] Handling loops FP induction variables. 
Allowed loop vectorization with secondary FP IVs. Like this:
float *A;
float x = init;
for (int i=0; i < N; ++i) {
  A[i] = x;
  x -= fp_inc;
}

The auto-vectorization is possible when the induction binary operator is "fast" or the function has "unsafe" attribute.

Differential Revision: https://reviews.llvm.org/D21330

llvm-svn: 276554
 2016-07-24 07:24:54 +00:00