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These are legal for tail calls

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21723 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2005-05-06 05:59:50 +00:00
parent ddb6db4fa1
commit 47968e4dfd
2 changed files with 5 additions and 1 deletions
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3
examples/Fibonacci/fibonacci.cpp
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@ -65,10 +65,13 @@ static Function *CreateFibFunction(Module *M) {
// create fib(x-1)
Value *Sub = BinaryOperator::createSub(ArgX, One, "arg", RecurseBB);
Value *CallFibX1 = new CallInst(FibF, Sub, "fibx1", RecurseBB);
CallFibX1->setTailCall(true);
// create fib(x-2)
Sub = BinaryOperator::createSub(ArgX, Two, "arg", RecurseBB);
Value *CallFibX2 = new CallInst(FibF, Sub, "fibx2", RecurseBB);
CallFibX2->setTailCall(true);
// fib(x-1)+fib(x-2)
Value *Sum = BinaryOperator::createAdd(CallFibX1, CallFibX2,