These are legal for tail calls

llvm-svn: 21723
2005-05-06 05:59:50 +00:00
parent 0603845a49
commit eaf625dc5c
2 changed files with 5 additions and 1 deletions
--- a/llvm/examples/Fibonacci/fibonacci.cpp
+++ b/llvm/examples/Fibonacci/fibonacci.cpp
@@ -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,