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Add a check to avoid allowing V->replaceAllUsesWith(V)

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llvm-svn: 104
This commit is contained in:
Chris Lattner 2001-06-29 05:25:51 +00:00
parent 09a1ba491b
commit 806b7ff4be
1 changed files with 1 additions and 0 deletions
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lib/VMCore/Value.cpp
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@ -43,6 +43,7 @@ Value::~Value() {
void Value::replaceAllUsesWith(Value *D) { void Value::replaceAllUsesWith(Value *D) {
assert(D && "Value::replaceAllUsesWith(<null>) is invalid!"); assert(D && "Value::replaceAllUsesWith(<null>) is invalid!");
assert(D != this && "V->replaceAllUsesWith(V) is NOT valid!");
while (!Uses.empty()) { while (!Uses.empty()) {
User *Use = Uses.front(); User *Use = Uses.front();
#ifndef NDEBUG #ifndef NDEBUG