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LoopVectorize: Make iteration over induction variables not depend on pointer values. 

MapVector is a bit heavyweight, but I don't see a simpler way. Also the
InductionList is unlikely to be large. This should help 3-stage selfhost
compares (PR14647).

llvm-svn: 170528
This commit is contained in:
Benjamin Kramer 2012-12-19 11:09:15 +00:00
parent 44ba3753ad
commit e300004bd5
1 changed files with 4 additions and 4 deletions
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8
llvm/lib/Transforms/Vectorize/LoopVectorize.h
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@ -47,12 +47,12 @@
#define LV_NAME "loop-vectorize"
#define DEBUG_TYPE LV_NAME
#include "llvm/Analysis/ScalarEvolution.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/MapVector.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/Analysis/ScalarEvolution.h"
#include "llvm/IRBuilder.h"
#include <algorithm>
using namespace llvm;
@ -304,7 +304,7 @@ public:
/// InductionList saves induction variables and maps them to the
/// induction descriptor.
typedef DenseMap<PHINode*, InductionInfo> InductionList;
typedef MapVector<PHINode*, InductionInfo> InductionList;
/// Returns true if it is legal to vectorize this loop.
/// This does not mean that it is profitable to vectorize this