The code for generating scalar base pointers in vectorizeMemoryInstruction is
not needed. We currently scalarize all GEPs and maintain the scalarized values
in VectorLoopValueMap. The GEP cloning in this unneeded code is the same as
that in scalarizeInstruction. The test cases that changed as a result of this
patch changed because we were able to reuse the scalarized GEP that we
previously generated instead of cloning a new one.
Differential Revision: https://reviews.llvm.org/D30587
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@298615 91177308-0d34-0410-b5e6-96231b3b80d8
This patch merges the existing floating-point induction variable widening code
into the integer induction variable widening code, creating a single set of
functions for both kinds of inductions. The primary motivation for doing this
is to enable vector phi node creation for floating-point induction variables.
Differential Revision: https://reviews.llvm.org/D30211
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@296145 91177308-0d34-0410-b5e6-96231b3b80d8
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
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@276554 91177308-0d34-0410-b5e6-96231b3b80d8
