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Move a few more SCEVExpander methods out-of-line.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52612 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2008-06-22 19:09:18 +00:00
parent 963a97f1a3
commit 11f6d3b478
2 changed files with 25 additions and 17 deletions
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21
include/llvm/Analysis/ScalarEvolutionExpander.h
View File

@ -75,11 +75,7 @@ namespace llvm {
/// expandCodeFor - Insert code to directly compute the specified SCEV
/// expression into the program. The inserted code is inserted into the
/// specified block.
Value *expandCodeFor(SCEVHandle SH, Instruction *IP) {
// Expand the code for this SCEV.
this->InsertPt = IP;
return expand(SH);
}
Value *expandCodeFor(SCEVHandle SH, Instruction *IP);
/// InsertCastOfTo - Insert a cast of V to the specified type, doing what
/// we can to share the casts.
@ -96,20 +92,11 @@ namespace llvm {
return S->getValue();
}
Value *visitTruncateExpr(SCEVTruncateExpr *S) {
Value *V = expand(S->getOperand());
return CastInst::CreateTruncOrBitCast(V, S->getType(), "tmp.", InsertPt);
}
Value *visitTruncateExpr(SCEVTruncateExpr *S);
Value *visitZeroExtendExpr(SCEVZeroExtendExpr *S) {
Value *V = expand(S->getOperand());
return CastInst::CreateZExtOrBitCast(V, S->getType(), "tmp.", InsertPt);
}
Value *visitZeroExtendExpr(SCEVZeroExtendExpr *S);
Value *visitSignExtendExpr(SCEVSignExtendExpr *S) {
Value *V = expand(S->getOperand());
return CastInst::CreateSExtOrBitCast(V, S->getType(), "tmp.", InsertPt);
}
Value *visitSignExtendExpr(SCEVSignExtendExpr *S);
Value *visitAddExpr(SCEVAddExpr *S);

21
lib/Analysis/ScalarEvolutionExpander.cpp
View File

@ -226,6 +226,21 @@ Value *SCEVExpander::visitAddRecExpr(SCEVAddRecExpr *S) {
return expand(V);
}
Value *SCEVExpander::visitTruncateExpr(SCEVTruncateExpr *S) {
Value *V = expand(S->getOperand());
return CastInst::createTruncOrBitCast(V, S->getType(), "tmp.", InsertPt);
}
Value *SCEVExpander::visitZeroExtendExpr(SCEVZeroExtendExpr *S) {
Value *V = expand(S->getOperand());
return CastInst::createZExtOrBitCast(V, S->getType(), "tmp.", InsertPt);
}
Value *SCEVExpander::visitSignExtendExpr(SCEVSignExtendExpr *S) {
Value *V = expand(S->getOperand());
return CastInst::createSExtOrBitCast(V, S->getType(), "tmp.", InsertPt);
}
Value *SCEVExpander::visitSMaxExpr(SCEVSMaxExpr *S) {
Value *LHS = expand(S->getOperand(0));
for (unsigned i = 1; i < S->getNumOperands(); ++i) {
@ -246,6 +261,12 @@ Value *SCEVExpander::visitUMaxExpr(SCEVUMaxExpr *S) {
return LHS;
}
Value *SCEVExpander::expandCodeFor(SCEVHandle SH, Instruction *IP) {
// Expand the code for this SCEV.
this->InsertPt = IP;
return expand(SH);
}
Value *SCEVExpander::expand(SCEV *S) {
// Check to see if we already expanded this.
std::map<SCEVHandle, Value*>::iterator I = InsertedExpressions.find(S);