3 ms·

I think they meant if you cast a pointer to an integer, do some math on that and then store that. Then you will a stored result that will likely differ from run

by traxys 3y ago

I think they meant if you cast a pointer to an integer, do some math on that and then store that. Then you will a stored result that will likely differ from run to run

edgyquant 3y ago
That sounds like runtime differences not a difference between two binaries
- stcg 3y ago
  The difference in binaries must be caused by some runtime difference of a compiler.
  - drdrey 3y ago
    That's right, look at this thread for example: https://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20140512/217038.html https://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20... The Global Value Numbering pass in LLVM was iterating over `DenseMap<BasicBlock*, ...>`, so the iteration order was dependent on the value of BasicBlock pointers. This could lead to the same source files and compiler producing different binaries.