Comment # 6
on bug 100067
from Vedran Miletić
(In reply to Mig from comment #5) > minimal.cpp compiled with > > gcc -c minimal.cpp -g -o minimal.o > > [miguel@antergos-mig extra]$ gdb > GNU gdb (GDB) 7.12.1 > Copyright (C) 2017 Free Software Foundation, Inc. > License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> > This is free software: you are free to change and redistribute it. > There is NO WARRANTY, to the extent permitted by law. Type "show copying" > and "show warranty" for details. > This GDB was configured as "x86_64-pc-linux-gnu". > Type "show configuration" for configuration details. > For bug reporting instructions, please see: > <http://www.gnu.org/software/gdb/bugs/>. > Find the GDB manual and other documentation resources online at: > <http://www.gnu.org/software/gdb/documentation/>. > For help, type "help". > Type "apropos word" to search for commands related to "word". > (gdb) file ./minimal > Reading symbols from ./minimal...done. > (gdb) b 20 > Breakpoint 1 at 0x400cee: file minimal.cpp, line 20. > (gdb) run > Starting program: > /home/miguel/Dokumente/OpenCLExamples/myGEMM-master/extra/minimal > >>> Initializing OpenCL... > [Thread debugging using libthread_db enabled] > Using host libthread_db library "/usr/lib/libthread_db.so.1". > [New Thread 0x7fffef7f8700 (LWP 3517)] > [New Thread 0x7fffeedf2700 (LWP 3518)] > [New Thread 0x7fffee5f1700 (LWP 3519)] > [New Thread 0x7fffeddf0700 (LWP 3520)] > [New Thread 0x7fffed5ef700 (LWP 3521)] > % Device: AMD TONGA (DRM 3.9.0 / 4.10.4-1-ARCH, LLVM 3.9.1), 2046.3 MiB > memory, max allocation 1432.4 MiB, driver 17.0.1 > > Thread 1 "minimal" received signal SIGSEGV, Segmentation fault. > 0x00007ffff2b9eb18 in > llvm::SIInstrInfo::getInstSizeInBytes(llvm::MachineInstr const&) const () > from /usr/lib/libLLVM-3.9.so > (gdb) > > I need backtrace here (command bt). > Also when I compile minimal.cl with > clang -x cl -target amdgcn-- -mcpu=tonga > -Dcl_clang_storage_class_specifiers=1 -Xclang -mlink-bitcode-file -Xclang > /usr/local/lib/clc/tonga-amdgcn--.bc -I/usr/local/include/clc -include > /usr/local/include/clc/clc.h minimal.cl > '+fp64-fp16-denormals' is not a recognized feature for this target (ignoring > feature) > '+fp64-fp16-denormals' is not a recognized feature for this target (ignoring > feature) Not really a problem, it's being ignored. > minimal.cl:2:15: error: unsupported call to function get_global_id.3 > __kernel void myGEMM1(const int M, > ^ > minimal.cl:2:15: error: unsupported call to function get_global_id.3 Could it be the same thing as bug 99856? > clang-3.9: > /home/miguel/Downloads/llvm-3.9.1.src/lib/Target/AMDGPU/SIInstrInfo.cpp:2428: > void llvm::SIInstrInfo::legalizeOperands(llvm::MachineInstr&) const: > Assertion `MBB.getParent()->getSubtarget<SISubtarget>().getGeneration() < > SISubtarget::VOLCANIC_ISLANDS && "FIXME: Need to emit flat atomics here"' > failed. This should be fixed (worked around, to be precise) in LLVM 4.0. > #0 0x00007efe68ec1662 llvm::sys::PrintStackTrace(llvm::raw_ostream&) > /home/miguel/Downloads/llvm-3.9.1.src/lib/Support/Unix/Signals.inc:402:0 > > ... > > I get errors.
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