[PATCH] D20695: Floating Point SCEV Analysis

[Elena Demikhovsky via llvm-commits]

delena updated this revision to Diff 59372.
delena added a comment.

I implemented IV simplification for FP using FP SCEV. No the following loop is covered:

float x = init;
 for (int i=0;i<N;i++){

  A[i] = x;
  x += fp_inc; // Loop invariant variable or constant

}

And the result is calculated as x = init + fp_inc*N


Repository:
  rL LLVM

http://reviews.llvm.org/D20695

Files:
  ../include/llvm/Analysis/ScalarEvolution.h
  ../include/llvm/Analysis/ScalarEvolutionExpander.h
  ../include/llvm/Analysis/ScalarEvolutionExpressions.h
  ../include/llvm/Transforms/Utils/LoopUtils.h
  ../lib/Analysis/IVUsers.cpp
  ../lib/Analysis/ScalarEvolution.cpp
  ../lib/Analysis/ScalarEvolutionExpander.cpp
  ../lib/Transforms/Scalar/IndVarSimplify.cpp
  ../lib/Transforms/Utils/LoopUtils.cpp
  ../lib/Transforms/Utils/SimplifyIndVar.cpp
  ../lib/Transforms/Vectorize/LoopVectorize.cpp
  ../test/Transforms/IndVarSimplify/floating-point-iv.ll
  ../test/Transforms/LoopVectorize/float-induction.ll

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