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...ml There's also TID::isNotDuplicable: http://llvm.org/docs/doxygen/html/classllvm_1_1TargetInstrDesc.html#ab05b074805f22503828b5b625d437f3a I don't know enough about LLVM's backend to say if you can get that on an intrinsic. Reid On Thu, Apr 14, 2011 at 5:24 PM, Dmitry Denisenko <DDENISEN at altera.com> wrote: > Hello, > > > > Is it possible to prevent duplication of call sites for specific functions > (while still maintaining –O3 optimization level)? For example, the following > C code: > > > > ------------------ > > if (cond1) a=2; > &g...

...ml There's also TID::isNotDuplicable: http://llvm.org/docs/doxygen/html/classllvm_1_1TargetInstrDesc.html#ab05b074805f22503828b5b625d437f3a I don't know enough about LLVM's backend to say if you can get that on an intrinsic. Reid On Thu, Apr 14, 2011 at 5:24 PM, Dmitry Denisenko <DDENISEN at altera.com> wrote: > Hello, > > > > Is it possible to prevent duplication of call sites for specific functions > (while still maintaining –O3 optimization level)? For example, the following > C code: > > > > ------------------ > > if (cond1) a=2; > &g...

Hello, Is it possible to prevent duplication of call sites for specific functions (while still maintaining -O3 optimization level)? For example, the following C code: ------------------ if (cond1) a=2; llvm.memory.barrier(...); ------------------ is turned by clang with -O2 into something like this: ------------------ if (cond1) a=2; llvm.memory.barrier(...); else

...; http://llvm.org/docs/doxygen/html/classllvm_1_1TargetInstrDesc.html#ab0 > 5b074805f22503828b5b625d437f3a > > I don't know enough about LLVM's backend to say if you can get that on > an intrinsic. > > Reid > > On Thu, Apr 14, 2011 at 5:24 PM, Dmitry Denisenko <DDENISEN at altera.com> > wrote: > > Hello, > > > > > > > > Is it possible to prevent duplication of call sites for specific > functions > > (while still maintaining –O3 optimization level)? For example, the > following > > C code: > > > > &g...