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Back out Owen's 6/9 changes. They broke MultiSource/Benchmarks/Prolangs-C/bison (and perhaps others).

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28747 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2006-06-11 09:32:57 +00:00
parent 31d1a2c51c
commit b9b2b309d3
4 changed files with 2 additions and 27 deletions
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5
include/llvm/Analysis/LoopInfo.h
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@ -98,7 +98,7 @@ public:
/// isLoopInvariant - Return true if the specified value is loop invariant
///
bool isLoopInvariant(Value *V) const;
//===--------------------------------------------------------------------===//
// APIs for simple analysis of the loop.
//
@ -147,9 +147,6 @@ public:
///
Value *getTripCount() const;
/// isLCSSAForm - Return true if the Loop is in LCSSA form
bool isLCSSAForm() const;
//===--------------------------------------------------------------------===//
// APIs for updating loop information after changing the CFG
//

16
lib/Analysis/LoopInfo.cpp
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@ -479,22 +479,6 @@ Value *Loop::getTripCount() const {
return 0;
}
/// isLCSSAForm - Return true if the Loop is in LCSSA form
bool Loop::isLCSSAForm() const {
for (Loop::block_iterator BB = block_begin(), E = block_end();
BB != E; ++BB) {
for (BasicBlock::iterator I = (*BB)->begin(), E = (*BB)->end(); I != E; ++I)
for (Value::use_iterator UI = I->use_begin(), E = I->use_end(); UI != E;
++UI) {
BasicBlock *UserBB = cast<Instruction>(*UI)->getParent();
if (!isa<PHINode>(*UI) && !contains(UserBB)) {
return false;
}
}
}
return true;
}
//===-------------------------------------------------------------------===//
// APIs for updating loop information after changing the CFG

4
lib/Transforms/Scalar/LoopUnswitch.cpp
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@ -73,8 +73,6 @@ namespace {
AU.addPreservedID(LoopSimplifyID);
AU.addRequired<LoopInfo>();
AU.addPreserved<LoopInfo>();
AU.addRequiredID(LCSSAID);
AU.addPreservedID(LCSSAID);
}
private:
@ -201,8 +199,6 @@ bool LoopUnswitch::visitLoop(Loop *L) {
}
}
assert(L->isLCSSAForm());
return Changed;
}

4
lib/Transforms/Utils/LCSSA.cpp
View File

@ -98,7 +98,7 @@ bool LCSSA::runOnFunction(Function &F) {
for (LoopInfo::iterator I = LI->begin(), E = LI->end(); I != E; ++I) {
changed |= visitSubloop(*I);
}
return changed;
}
@ -132,8 +132,6 @@ bool LCSSA::visitSubloop(Loop* L) {
processInstruction(*I, exitBlocks);
}
assert(L->isLCSSAForm());
return true;
}