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Don't bother counting alias results, allow the AliasAnalysisCounter to do that.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5505 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2003-02-07 20:39:48 +00:00
parent a89feb55e0
commit 1dbd1b820f
2 changed files with 8 additions and 37 deletions
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15
lib/Analysis/DataStructure/DataStructureAA.cpp
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@ -9,12 +9,6 @@
#include "llvm/Analysis/DSGraph.h"
#include "llvm/Analysis/AliasAnalysis.h"
#include "llvm/Module.h"
#include "Support/Statistic.h"
namespace {
Statistic<> NumNoAlias ("ds-aa", "Number of 'no alias' replies");
Statistic<> NumMayAlias ("ds-aa", "Number of 'may alias' replies");
};
namespace {
class DSAA : public Pass, public AliasAnalysis {
@ -104,18 +98,14 @@ AliasAnalysis::Result DSAA::alias(const Value *V1, const Value *V2) {
if (I->second.getNode() != J->second.getNode()) {
// Return noalias if one of the nodes is complete...
if ((~I->second.getNode()->NodeType | ~J->second.getNode()->NodeType)
& DSNode::Incomplete) {
++NumNoAlias;
& DSNode::Incomplete)
return NoAlias;
}
// both are incomplete, they may alias...
} else {
// Both point to the same node, see if they point to different
// offsets... FIXME: This needs to know the size of the alias query
if (I->second.getOffset() != J->second.getOffset()) {
++NumNoAlias;
if (I->second.getOffset() != J->second.getOffset())
return NoAlias;
}
}
}
}
@ -123,6 +113,5 @@ AliasAnalysis::Result DSAA::alias(const Value *V1, const Value *V2) {
// FIXME: we could improve on this by checking the globals graph for aliased
// global queries...
++NumMayAlias;
return getAnalysis<AliasAnalysis>().alias(V1, V2);
}