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ptxas
2016 Oct 14
2
LLVM/CLANG: CUDA compilation fail for inline assembly code
.../cuda-programming-and-performance/any-way-to-know-on-which-sm-a-thread-is-running-/2/?offset=21#4996171>
):
- static __device__ uint get_smid(void) {
- uint ret;
- asm("mov.u32 %0, %smid;" : "=r"(ret) );
- return ret;
- }
The original make file has nvcc compiler with a flag -Xptxas -v. It
compiles with nvcc.
LLVM has -Xcuda-ptxas <arg>, which I believe is the comparable command for
compiling PTX code. I get following error when I try compiling (clang 4.0).:
1. ../../include/cutil_subset.h:23:25: error: invalid % escape in inline
assembly string
2. asm("...