Can I force the compiler not to optimize tail-recursion?

Imagine thi开发者_Python百科s code:

int foo() {
  return foo();
}

The compiler can optimize this. Can I force the compiler to use a new stack frame for foo, instead of using the same stack frame (per case, so disabling optimization completely doesn't count)?

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Yes, with -fno-optimize-sibling-calls option.

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In gcc, try either:

• -O0
• -fno-optimize-sibling-calls