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Hi Thomas, thank you very much for your help. I applied the patch to nvptx.c and was able to build everything. The compiler works for my small accelerator programs. loki nvptx 147 diff nvptx.c nvptx.c.orig 1878,1881c1878 < bool function = SYMBOL_REF_DECL (sym) < && (TREE_CODE (SYMBOL_REF_DECL (sym)) == FUNCTION_DECL); < if (!function) < fprintf (asm_out_file, "generic("); --- > fprintf (asm_out_file, "generic("); 1883,1886c1880 < if (!function) < fprintf (asm_out_file, val ? ") + " : ")"); < else if (val) < fprintf (asm_out_file, " + "); --- > fprintf (asm_out_file, val ? ") + " : ")"); loki nvptx 148 I'm not sure if I used CUDA 8 or CUDA 9 to build gcc-7.2.0, but I assume it was already CUDA 9. loki nvptx 148 ls -ld /usr/local/gcc-7.2.0/ /usr/local/cuda lrwxrwxrwx 1 root root 8 Sep 27 09:15 /usr/local/cuda -> cuda-9.0 drwxr-xr-x 9 root root 4096 Nov 2 12:07 /usr/local/gcc-7.2.0/ loki nvptx 149 Thank you very much once more Siegmar Am 24.02.2018 um 23:18 schrieb Thomas Schwinge:
Hi! On Sat, 24 Feb 2018 17:20:13 +0100, Siegmar Gross <siegmar.gross@informatik.hs-fulda.de> wrote:today I tried to install gcc-7.3.0 with accelerator supportThanks for giving that a try and reporting back!on my "SUSE Linux Enterprise Server 12.3 (x86_64)" with gcc-6.4.0. I used the following commands to download and build everything.Thanks for providing these (but I have not yet reviewed them in detail, because the problem might be solved already, see below).'../../../../../../gcc-7.3.0/newlib/libc/search/'`hash_func.c ptxas lib_a-hash_func.o, line 11; fatal : Invalid initial value expression ptxas fatal : Ptx assembly aborted due to errors nvptx-as: ptxas returned 255 exit status Makefile:413: recipe for target 'lib_a-hash_func.o' failed make[8]: *** [lib_a-hash_func.o] Error 1Am I right guessing that you're using CUDA 9? Then it'd most likely be the issue discussed in <https://gcc.gnu.org/PR83790> "Update nvptx target to work with cuda 9". By now, there has a fix been committed to GCC trunk, and I assume the same would also work on earlier GCC releases/branches.I was able to build that part for gcc-7.2.0 with the same commands.Interesting. Or, maybe you've not been using CUDA 9 in that build? Grüße Thomas
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