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Do you pull clang under llvm/tools and compile it as well? In theory, if `opt` recognize the option, so does `clang -mllvm`. 2018-01-12 8:47 GMT+08:00 sangeeta chowdhary <sangitachowdhary at gmail.com>: > Hello, > > I have tried giving this option like this > > clang -c -emit-llvm -mllvm -rdetector hello.c -c -o hello.bc > but I am getting error " Unknown command line argument '-rdetector’.” > > Although same option work with opt - > opt -rdet...

Hello, I have followed steps given in - https://stackoverflow.com/questions/29910051/integrating-llvm-passes/48142693#48142693 <https://stackoverflow.com/questions/29910051/integrating-llvm-passes/48142693#48142693>, to integrate my pass with pass manager and run it with clang. I am able to run my pass with opt - opt -mypass but when I try to run it with clang, I always get an error -

On 14 Jan 2018, at 00:14, sangeeta chowdhary <sangitachowdhary at gmail.com> wrote: > > I have taken SimplePass and added in Transform directory, “libLLVMSimplePass.a” is built but I can not see this pass in opt —help. I don’t even see the name of pass while registering it in the example. The SimplePass example is intended to be built out of tree, s...

I have taken SimplePass and added in Transform directory, “libLLVMSimplePass.a” is built but I can not see this pass in opt —help. I don’t even see the name of pass while registering it in the example. > On Jan 13, 2018, at 7:35 AM, David Chisnall <David.Chisnall at cl.cam.ac.uk> wrote: > > On 13 Jan 2018, at 03:45, Craig Topper via llvm-dev <llvm-dev at lists.llvm.org>

...mputer. On Fri, Jan 12, 2018 at 7:00 PM 陳韋任 via llvm-dev <llvm-dev at lists.llvm.org> wrote: > Do you pull clang under llvm/tools and compile it as well? In theory, if > `opt` recognize the option, so does `clang -mllvm`. > > > 2018-01-12 8:47 GMT+08:00 sangeeta chowdhary <sangitachowdhary at gmail.com>: > >> Hello, >> >> I have tried giving this option like this >> >> clang -c -emit-llvm -mllvm -rdetector hello.c -c -o hello.bc >> but I am getting error " Unknown command line argument '-rdetector’.” >> >> Although same o...

(though, usual caveat: you /usually/ shouldn't be doing that - instead relying only on whatever semantics the IR actually carries, rather than implying extra semantics based on the demangled name) On Wed, Jun 24, 2020 at 12:48 PM Johannes Doerfert via llvm-dev <llvm-dev at lists.llvm.org> wrote: > > I have not tried it but maybe > > `std::string llvm::demangle(const

This is of course not homework. I am trying to understand how fast math optimizations work in llvm. When I compared IR for both the programs, the only thing I have noticed is that fdiv and fmul are replaced with fdiv fast and fmul fast. Not sure what happens in fdiv fast and fmul fast. I feel that its because d/max is really small number and fast-math does not care about small numbers and consider