6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-29 10:32:47 +00:00
Code Issues Projects Releases Wiki Activity

Some cleanup for r209568.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209634 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Michael Zolotukhin 2014-05-26 14:49:46 +00:00
parent 1322e998c1
commit 90e79a50bb
1 changed files with 7 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
lib/Analysis/ScalarEvolution.cpp
View File

@ -1208,11 +1208,10 @@ const SCEV *ScalarEvolution::getSignExtendExpr(const SCEV *Op,
auto SMul = dyn_cast<SCEVMulExpr>(SA->getOperand(1));
if (SMul && SC1) {
if (auto SC2 = dyn_cast<SCEVConstant>(SMul->getOperand(0))) {
APInt C1 = SC1->getValue()->getValue();
APInt C2 = SC2->getValue()->getValue();
APInt CDiff = C2 - C1;
const APInt &C1 = SC1->getValue()->getValue();
const APInt &C2 = SC2->getValue()->getValue();
if (C1.isStrictlyPositive() && C2.isStrictlyPositive() &&
CDiff.isStrictlyPositive() && C2.isPowerOf2())
C2.ugt(C1) && C2.isPowerOf2())
return getAddExpr(getSignExtendExpr(SC1, Ty),
getSignExtendExpr(SMul, Ty));
}
@ -1316,11 +1315,10 @@ const SCEV *ScalarEvolution::getSignExtendExpr(const SCEV *Op,
auto SC1 = dyn_cast<SCEVConstant>(Start);
auto SC2 = dyn_cast<SCEVConstant>(Step);
if (SC1 && SC2) {
APInt C1 = SC1->getValue()->getValue();
APInt C2 = SC2->getValue()->getValue();
APInt CDiff = C2 - C1;
if (C1.isStrictlyPositive() && C2.isStrictlyPositive() &&
CDiff.isStrictlyPositive() && C2.isPowerOf2()) {
const APInt &C1 = SC1->getValue()->getValue();
const APInt &C2 = SC2->getValue()->getValue();
if (C1.isStrictlyPositive() && C2.isStrictlyPositive() && C2.ugt(C1) &&
C2.isPowerOf2()) {
Start = getSignExtendExpr(Start, Ty);
const SCEV *NewAR = getAddRecExpr(getConstant(AR->getType(), 0), Step,
L, AR->getNoWrapFlags());