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Add some more statistics to CodeGenPrepare.

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llvm-svn: 122891
This commit is contained in:
Cameron Zwarich 2011-01-05 17:47:38 +00:00
parent b6eccbe55a
commit 2543ec1d29
1 changed files with 4 additions and 0 deletions
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4
lib/Transforms/Scalar/CodeGenPrepare.cpp
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@ -45,6 +45,8 @@ using namespace llvm;
using namespace llvm::PatternMatch;
STATISTIC(NumBlocksElim, "Number of blocks eliminated");
STATISTIC(NumPHIsElim, "Number of trivial PHIs eliminated");
STATISTIC(NumGEPsElim, "Number of GEPs converted to casts");
STATISTIC(NumCmpUses, "Number of uses of Cmp expressions replaced with uses of "
"sunken Cmps");
STATISTIC(NumCastUses, "Number of uses of Cast expressions replaced with uses "
@ -981,6 +983,7 @@ bool CodeGenPrepare::OptimizeBlock(BasicBlock &BB) {
if (Value *V = SimplifyInstruction(P)) {
P->replaceAllUsesWith(V);
P->eraseFromParent();
++NumPHIsElim;
}
} else if (CastInst *CI = dyn_cast<CastInst>(I)) {
// If the source of the cast is a constant, then this should have
@ -1020,6 +1023,7 @@ bool CodeGenPrepare::OptimizeBlock(BasicBlock &BB) {
GEPI->getName(), GEPI);
GEPI->replaceAllUsesWith(NC);
GEPI->eraseFromParent();
++NumGEPsElim;
MadeChange = true;
BBI = NC;
}