mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-24 09:29:42 +00:00
instructions defined in CurBB may be intermediate nodes of the computation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90908 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
parent
7dedbf4ce3
commit
af50315a29
@ -83,9 +83,9 @@ public:
|
||||
|
||||
void dump() const;
|
||||
|
||||
/// Verify - Check internal consistency of this data structure. Though it
|
||||
/// claims to return a bool, it actually aborts on error and always returns
|
||||
/// true.
|
||||
/// Verify - Check internal consistency of this data structure. If the
|
||||
/// structure is valid, it returns true. If invalid, it prints errors and
|
||||
/// returns false.
|
||||
bool Verify() const;
|
||||
private:
|
||||
Value *PHITranslateSubExpr(Value *V, BasicBlock *CurBB, BasicBlock *PredBB);
|
||||
|
@ -154,12 +154,20 @@ Value *PHITransAddr::PHITranslateSubExpr(Value *V, BasicBlock *CurBB,
|
||||
Instruction *Inst = dyn_cast<Instruction>(V);
|
||||
if (Inst == 0) return V;
|
||||
|
||||
// Determine whether 'Inst' is an input to our PHI translatable expression.
|
||||
bool isInput = std::count(InstInputs.begin(), InstInputs.end(), Inst);
|
||||
|
||||
// Handle inputs instructions if needed.
|
||||
if (isInput) {
|
||||
if (Inst->getParent() != CurBB) {
|
||||
// If it is an input defined in a different block, then it remains an
|
||||
// input.
|
||||
return Inst;
|
||||
}
|
||||
|
||||
// If 'Inst' is defined in this block, it must be an input that needs to be
|
||||
// phi translated or an intermediate expression that needs to be incorporated
|
||||
// into the expression.
|
||||
if (Inst->getParent() == CurBB) {
|
||||
assert(std::count(InstInputs.begin(), InstInputs.end(), Inst) &&
|
||||
"Not an input?");
|
||||
|
||||
// If this is a PHI, go ahead and translate it.
|
||||
if (PHINode *PN = dyn_cast<PHINode>(Inst))
|
||||
@ -179,14 +187,6 @@ Value *PHITransAddr::PHITranslateSubExpr(Value *V, BasicBlock *CurBB,
|
||||
for (unsigned i = 0, e = Inst->getNumOperands(); i != e; ++i)
|
||||
if (Instruction *Op = dyn_cast<Instruction>(Inst->getOperand(i)))
|
||||
InstInputs.push_back(Op);
|
||||
|
||||
} else {
|
||||
// Determine whether 'Inst' is an input to our PHI translatable expression.
|
||||
bool isInput = std::count(InstInputs.begin(), InstInputs.end(), Inst);
|
||||
|
||||
// If it is an input defined in a different block, then it remains an input.
|
||||
if (isInput)
|
||||
return Inst;
|
||||
}
|
||||
|
||||
// Ok, it must be an intermediate result (either because it started that way
|
||||
|
Loading…
Reference in New Issue
Block a user