search for: tp30046067p30049449

...; _______________________________________________ > LLVM Developers mailing list > LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu > http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev > > -- View this message in context: http://old.nabble.com/Prevent-instruction-elimination-tp30046067p30049449.html Sent from the LLVM - Dev mailing list archive at Nabble.com.

Hi John, > As for instructions, I don't know of an instruction which does nothing, > won't be removed by optimization, and yet does not inhibit > optimization. Perhaps a local alloca and a volatile load or store would > do the trick? Being volatile, the compiler won't remove it (or if it > does, it's a bug, and you should file a bug report), and since it loads