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...__c11_atomic_fetch_add((_Atomic(int)*)(addr), (delta), __ATOMIC_SEQ_CST) > This is odd. This atomic is implemented in CGAtomic.cpp, but it's being lowered as a library call because "UseLibcall" is true: bool UseLibcall = (Size != Align || getContext().toBits(sizeChars) > MaxInlineWidthInBits); I don't think it should in your case. That looks like a bug, but I'm not an atomic library expert. Can you create a bug in bugzilla ( http://www.llvm.org/bugs/), please? Possibly, you should send an email with this error and the bugzilla ID to the list, just...

Thanks Renato and Giang. I was able to run a simple HelloWorld program on gem5 (in SE mode) by using -target -arm-none-linux-gnueabi as the option during cross compilation. I am trying to cross compile some Computer Vision algorithms, which use OpenCV libraries, and I tried using the same command line options - clang++ *-emit-llvm -static -c -Wall -g -O0 -mfpu=vfp -mfloat-abi=soft

...)(addr), (delta), > __ATOMIC_SEQ_CST) > > > This is odd. This atomic is implemented in CGAtomic.cpp, but it's > being lowered as a library call because "UseLibcall" is true: > > bool UseLibcall = (Size != Align || > getContext().toBits(sizeChars) > > MaxInlineWidthInBits); > > I don't think it should in your case. That looks like a bug, but I'm > not an atomic library expert. Can you create a bug in bugzilla > (http://www.llvm.org/bugs/), please? > > Possibly, you should send an email with this error and...