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2011 Apr 09
1
[LLVMdev] bsr not implemented?
Hello, just trying to use the dragonegg plugin with gcc on my project. Unfortunately I get an /usr/local/lib/gcc/x86_64-unknown-linux-gnu/4.5.2/include/ia32intrin.h:170:35: error: unsupported target builtin ‘__builtin_ia32_bsrdi’ used error. I use (and need) the "bsr" (bit scan reverse) instruction. So it seems it isn't implemented (yet). Can I safely use gcc inline assembly instead? Are the some preprocessor macros defined while using dragonegg so that I can conditionally compile? - Gunther