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author | Dan Gohman <gohman@apple.com> | 2009-06-05 16:35:53 +0000 |
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committer | Dan Gohman <gohman@apple.com> | 2009-06-05 16:35:53 +0000 |
commit | 5f21f3adbfc57f5249e1220696a78c3360385955 (patch) | |
tree | 13b940423fa34908bfad4f1e971c1904eb576681 /lib/Analysis | |
parent | 27c2daf02027f431d63995f947294e71b9ba384b (diff) | |
download | external_llvm-5f21f3adbfc57f5249e1220696a78c3360385955.zip external_llvm-5f21f3adbfc57f5249e1220696a78c3360385955.tar.gz external_llvm-5f21f3adbfc57f5249e1220696a78c3360385955.tar.bz2 |
Move SCEVExpander::getOrInsertCanonicalInductionVariable out of line.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72949 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Analysis')
-rw-r--r-- | lib/Analysis/ScalarEvolutionExpander.cpp | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/lib/Analysis/ScalarEvolutionExpander.cpp b/lib/Analysis/ScalarEvolutionExpander.cpp index 7ba8268..ef77e46 100644 --- a/lib/Analysis/ScalarEvolutionExpander.cpp +++ b/lib/Analysis/ScalarEvolutionExpander.cpp @@ -644,3 +644,16 @@ Value *SCEVExpander::expand(const SCEV *S) { InsertedExpressions[S] = V; return V; } + +/// getOrInsertCanonicalInductionVariable - This method returns the +/// canonical induction variable of the specified type for the specified +/// loop (inserting one if there is none). A canonical induction variable +/// starts at zero and steps by one on each iteration. +Value * +SCEVExpander::getOrInsertCanonicalInductionVariable(const Loop *L, + const Type *Ty) { + assert(Ty->isInteger() && "Can only insert integer induction variables!"); + SCEVHandle H = SE.getAddRecExpr(SE.getIntegerSCEV(0, Ty), + SE.getIntegerSCEV(1, Ty), L); + return expand(H); +} |