Hello all,
Just a quick question for which I think the answer is “NO”. I am currently experiencing clang on a RHE linux x86_64 server. It seems to work very fine (great news, and thank you), but when I try to build using -O4 flag, I get an error telling me that it is “not possible to emit LLVM bit-code files to linker”. I came across some post in this mailing list that made me think that it was because all system linker did not support LTO and that the feature is essentially supported on Mac os X.
However, when using the online demo, LTO is enabled and the results says among other things:
target triple = “x86_64-linux-gnu”
Can you explain me why it does not work in my case and why it does in others ?
Best regards,
-Romain
Romain Pechayre wrote:
Hello all,
Just a quick question for which I think the answer is "NO". I am
currently experiencing clang on a RHE linux x86_64 server. It seems to
work very fine (great news, and thank you), but when I try to build
using -O4 flag, I get an error telling me that it is "not possible to
emit LLVM bit-code files to linker". I came across some post in this
mailing list that made me think that it was because all system linker
did not support LTO and that the feature is essentially supported on Mac
os X.
However, when using the online demo, LTO is enabled and the results says
among other things:
target triple = " x86_64-linux-gnu"
Can you explain me why it does not work in my case and why it does in
others ?
The online demo doesn't use the system linker, it just runs the LTO optimizations.
As for getting a binutils ld which can use LLVM, see http://llvm.org/docs/GoldPlugin.html
Nick