Factor out the code for deleting a formula from an LSRUse into
a helper function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104079 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/LoopStrengthReduce.cpp b/lib/Transforms/Scalar/LoopStrengthReduce.cpp
index eaf8d94..eac1a02 100644
--- a/lib/Transforms/Scalar/LoopStrengthReduce.cpp
+++ b/lib/Transforms/Scalar/LoopStrengthReduce.cpp
@@ -942,6 +942,7 @@
AllFixupsOutsideLoop(true) {}
bool InsertFormula(const Formula &F);
+ void DeleteFormula(Formula &F);
void check() const;
@@ -979,6 +980,12 @@
return true;
}
+/// DeleteFormula - Remove the given formula from this use's list.
+void LSRUse::DeleteFormula(Formula &F) {
+ std::swap(F, Formulae.back());
+ Formulae.pop_back();
+}
+
void LSRUse::print(raw_ostream &OS) const {
OS << "LSR Use: Kind=";
switch (Kind) {
@@ -2631,8 +2638,7 @@
#ifndef NDEBUG
Changed = true;
#endif
- std::swap(F, LU.Formulae.back());
- LU.Formulae.pop_back();
+ LU.DeleteFormula(F);
--FIdx;
--NumForms;
continue;
@@ -2728,8 +2734,7 @@
Formula &F = LU.Formulae[i];
if (!F.referencesReg(Best)) {
DEBUG(dbgs() << " Deleting "; F.print(dbgs()); dbgs() << '\n');
- std::swap(LU.Formulae.back(), F);
- LU.Formulae.pop_back();
+ LU.DeleteFormula(F);
--e;
--i;
assert(e != 0 && "Use has no formulae left! Is Regs inconsistent?");