diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/IndVarSimplify.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/llvm/lib/Transforms/Scalar/IndVarSimplify.cpp b/llvm/lib/Transforms/Scalar/IndVarSimplify.cpp index 4203818baaf..02a1dbdb933 100644 --- a/llvm/lib/Transforms/Scalar/IndVarSimplify.cpp +++ b/llvm/lib/Transforms/Scalar/IndVarSimplify.cpp @@ -1,7 +1,9 @@ //===- IndVarSimplify.cpp - Induction Variable Elimination ----------------===// // -// InductionVariableSimplify - Transform induction variables in a program -// to all use a single cannonical induction variable per loop. +// Guarantees that all loops with identifiable, linear, induction variables will +// be transformed to have a single, cannonical, induction variable. After this +// pass runs, it guarantees the the first PHI node of the header block in the +// loop is the cannonical induction variable if there is one. // //===----------------------------------------------------------------------===// |
