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Reapply my 6/9 changes. The bug Evan saw no longer occurs. 

llvm-svn: 28759
This commit is contained in:
Owen Anderson 2006-06-12 21:49:21 +00:00
parent b5c9d7a0af
commit fd0a3d6e5c
1 changed files with 7 additions and 1 deletions
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6
llvm/lib/Transforms/Scalar/LoopUnswitch.cpp
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@ -73,6 +73,8 @@ namespace {
AU.addPreservedID(LoopSimplifyID); AU.addPreservedID(LoopSimplifyID);
AU.addRequired<LoopInfo>(); AU.addRequired<LoopInfo>();
AU.addPreserved<LoopInfo>(); AU.addPreserved<LoopInfo>();
AU.addRequiredID(LCSSAID);
AU.addPreservedID(LCSSAID);
} }
private: private:
@ -154,6 +156,8 @@ static Value *FindLIVLoopCondition(Value *Cond, Loop *L, bool &Changed) {
} }
bool LoopUnswitch::visitLoop(Loop *L) { bool LoopUnswitch::visitLoop(Loop *L) {
assert(L->isLCSSAForm());
bool Changed = false; bool Changed = false;
// Loop over all of the basic blocks in the loop. If we find an interior // Loop over all of the basic blocks in the loop. If we find an interior
@ -199,6 +203,8 @@ bool LoopUnswitch::visitLoop(Loop *L) {
} }
} }
assert(L->isLCSSAForm());
return Changed; return Changed;
} }