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Changed the fundemental architecture of Operands for Instructions. Now

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Operands are maintained as a vector<Use> in the User class, and operator
iterators are provided as before.  Getting an operand no longer requires
a virtual function call.

WARNING: getOperand(x) where x >= getNumOperands() will now assert instead
of returning null!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2001-07-07 08:36:50 +00:00
parent f0d0e9c262
commit c8b25d40cb
25 changed files with 308 additions and 647 deletions
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lib/VMCore/Value.cpp
+3 -4
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@@ -89,14 +89,13 @@ User::User(const Type *Ty, ValueTy vty, const string &name)
void User::replaceUsesOfWith(Value *From, Value *To) {
if (From == To) return; // Duh what?
for (unsigned OpNum = 0; Value *D = getOperand(OpNum); ++OpNum) {
if (D == From) { // Okay, this operand is pointing to our fake def.
for (unsigned i = 0, E = getNumOperands(); i != E; ++i)
if (getOperand(i) == From) { // Is This operand is pointing to oldval?
// The side effects of this setOperand call include linking to
// "To", adding "this" to the uses list of To, and
// most importantly, removing "this" from the use list of "From".
setOperand(OpNum, To); // Fix it now...
setOperand(i, To); // Fix it now...
}
}
}