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| author | Dan Gohman <gohman@apple.com> | 2010-01-19 21:55:32 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2010-01-19 21:55:32 +0000 |
| commit | bafbbdde38dedf05b53b731cbc083b2c483ae64e (patch) | |
| tree | 2efb27645d86d2be6e86295c36af8f5f260ff1f8 /include/llvm/Analysis/IVUsers.h | |
| parent | 8e1aa8edec61d4361c66ad8483bb94d76e55dec8 (diff) | |
| download | external_llvm-bafbbdde38dedf05b53b731cbc083b2c483ae64e.zip external_llvm-bafbbdde38dedf05b53b731cbc083b2c483ae64e.tar.gz external_llvm-bafbbdde38dedf05b53b731cbc083b2c483ae64e.tar.bz2 | |
Add a new helper function to IVUsers for returning the "canonical"
form of an expression. This is the expression without the
post-increment adjustment made, which is useful in determining
which registers will be used by the expansion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93921 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/Analysis/IVUsers.h')
| -rw-r--r-- | include/llvm/Analysis/IVUsers.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/llvm/Analysis/IVUsers.h b/include/llvm/Analysis/IVUsers.h index fcd9caa..50f7d45 100644 --- a/include/llvm/Analysis/IVUsers.h +++ b/include/llvm/Analysis/IVUsers.h @@ -212,6 +212,11 @@ public: /// value of the OperandValToReplace of the given IVStrideUse. const SCEV *getReplacementExpr(const IVStrideUse &U) const; + /// getCanonicalExpr - Return a SCEV expression which computes the + /// value of the SCEV of the given IVStrideUse, ignoring the + /// isUseOfPostIncrementedValue flag. + const SCEV *getCanonicalExpr(const IVStrideUse &U) const; + void print(raw_ostream &OS, const Module* = 0) const; /// dump - This method is used for debugging. |