How do I disable tailcall optimizations in gcc

Question

Wondering if anyone knows the flag for gcc to disable tailcall optimizations. Basically in a tailcall optimization, gcc will replace a stack frame when the return value fro

Answer 1

GCC manual:

   -foptimize-sibling-calls
       Optimize sibling and tail recursive calls.

       Enabled at levels -O2, -O3, -Os.

So either compile with -O0/-O1, or use -fno-optimize-sibling-calls.