[Libclc-dev] Can't compile Libclc anylonger with current git LLVM since 16. Mai
Jan Vesely via Libclc-dev
libclc-dev at lists.llvm.org
Sat May 28 15:55:44 PDT 2016
This failure is not caused by libclc, but rather change in clang
(r269670). The revision changed the way clc extensions are handled and
did not allow any extensions for nvptx.
compilation fails because libclc configure sets -Dcl_khr_fp64, but
clang refuses to enable the extension.
Possible fixes/workarounds:
1.) Don't compile nvptx libclc target. amd targets have relied on clang
providing device information for some time, and should be fine (the bug
in current clang should not be fatal).
2.) Remove -Dcl_khr_fp64 from nvptx targets in configure. We'll
probably need to that anyway. This might lead to miscompiled libclc for
nvptx and you'll see a ton of warnings.
3.) Apply patches [0,1,2,3] to your clang and recompile. Patch [3]
should be enough, but I haven't tested them individually.
regards,
Jan
[0] http://reviews.llvm.org/D20447
[1] http://reviews.llvm.org/D20744
[2] http://reviews.llvm.org/D20388
[3] http://reviews.llvm.org/D20389
On Sun, 2016-05-29 at 00:29 +0200, Dieter Nützel via Libclc-dev wrote:
> Hello to the list,
>
> my last and running Libclc was compiled with git LLVM taken from the
> same day:
>
> /home/dieter> l /usr/local/lib/clc/
> insgesamt 25188
> drwxr-xr-x 2 root root 4096 16. Mai 04:00 .
> drwxr-xr-x 10 root root 4096 28. Mai 19:03 ..
> -rw-r--r-- 1 root root 3733300 16. Mai 04:00 amdgcn--amdhsa.bc
> lrwxrwxrwx 1 root root 16 16. Mai 04:00 aruba-r600--.bc ->
> cayman-r600--.bc
> -rw-r--r-- 1 root root 2120756 16. Mai 04:00 barts-r600--.bc
> [-]
>
> Only git change was:
>
> commit 8243e979a42c48c6b018995d35e8a371014b59da
> Author: Jan Vesely <jan.vesely at rutgers.edu>
> Date: Tue May 17 19:44:01 2016 +0000
>
> math: Use single precision fmax in sp path
>
> Fixes fdim piglit on Turks
>
> v2: use CL fmax instead of __builtin
>
> Signed-off-by: Jan Vesely <jan.vesely at rutgers.edu>
> Reviewed-by: Tom Stellard <tom.stellard at amd.com>
>
> git-svn-id: https://llvm.org/svn/llvm-project/libclc/trunk@26980
> 7
> 91177308-0d34-0410-b5e6-96231b3b80d8
>
> Reverting it doesn't solve my problem.
> So it must be LLVM?
>
> I'm on x86_64 nehalem.
>
> LLVM (http://llvm.org/):
> LLVM version 3.9.0svn
> Optimized build.
> Default target: x86_64-unknown-linux-gnu
> Host CPU: nehalem
>
> Registered Targets:
> amdgcn - AMD GCN GPUs
> r600 - AMD GPUs HD2XXX-HD6XXX
> x86 - 32-bit X86: Pentium-Pro and above
> x86-64 - 64-bit X86: EM64T and AMD64
>
> Worked before like a charm.
> Any pointers?
>
> Thanks,
> Dieter
>
> /opt/libclc> time nice +19 make
> LLVM-AS generic--/lib/subnormal_disable.bc
> LLVM-AS generic--/lib/subnormal_use_default.bc
> LLVM-CC nvptx--nvidiacl/lib/synchronization/barrier.cl.bc
> In file included from ./ptx-
> nvidiacl/lib/synchronization/barrier.cl:1:
> ./generic/include/clc/clc.h:5:26: warning: unsupported OpenCL
> extension
> 'cl_clang_storage_class_specifiers' - ignoring [-Wignored-
> pragmas]
> #pragma OPENCL EXTENSION cl_clang_storage_class_specifiers : enable
> ^
> ./generic/include/clc/clc.h:8:26: warning: unsupported OpenCL
> extension
> 'cl_khr_fp64' - ignoring
> [-Wignored-pragmas]
> #pragma OPENCL EXTENSION cl_khr_fp64 : enable
> ^
> In file included from ./ptx-
> nvidiacl/lib/synchronization/barrier.cl:1:
> In file included from ./generic/include/clc/clc.h:15:
> ./generic/include/clc/clctypes.h:82:45: error: use of type 'double'
> requires cl_khr_fp64 extension to
> be enabled
> typedef __attribute__((ext_vector_type(2))) double double2;
> ^
> ./generic/include/clc/clctypes.h:83:45: error: use of type 'double'
> requires cl_khr_fp64 extension to
> be enabled
> typedef __attribute__((ext_vector_type(3))) double double3;
> ^
> ./generic/include/clc/clctypes.h:84:45: error: use of type 'double'
> requires cl_khr_fp64 extension to
> be enabled
> typedef __attribute__((ext_vector_type(4))) double double4;
> ^
> ./generic/include/clc/clctypes.h:85:45: error: use of type 'double'
> requires cl_khr_fp64 extension to
> be enabled
> typedef __attribute__((ext_vector_type(8))) double double8;
> ^
> ./generic/include/clc/clctypes.h:86:46: error: use of type 'double'
> requires cl_khr_fp64 extension to
> be enabled
> typedef __attribute__((ext_vector_type(16))) double double16;
> ^
> In file included from ./ptx-
> nvidiacl/lib/synchronization/barrier.cl:1:
> In file included from ./generic/include/clc/clc.h:18:
> ./generic/include/clc/convert.h:56:1: error: use of type 'double'
> requires cl_khr_fp64 extension to
> be enabled
> _CLC_VECTOR_CONVERT_TO_SUFFIX(_rtn)
> ^
> ./generic/include/clc/convert.h:53:3: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO_SUFFIX'
> _CLC_VECTOR_CONVERT_TO(_sat##ROUND) \
> ^
> ./generic/include/clc/convert.h:45:3: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO'
> _CLC_VECTOR_CONVERT_TO1(SUFFIX) \
> ^
> ./generic/include/clc/convert.h:33:3: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO1'
> _CLC_VECTOR_CONVERT_FROM(char, SUFFIX) \
> ^
> ./generic/include/clc/convert.h:26:39: note: expanded from macro
> '_CLC_VECTOR_CONVERT_FROM'
> _CLC_VECTOR_CONVERT_DECL(FROM_TYPE, double, SUFFIX)
> ^
> ./generic/include/clc/convert.h:56:1: error: use of type 'double'
> requires cl_khr_fp64 extension to
> be enabled
> ./generic/include/clc/convert.h:53:3: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO_SUFFIX'
> _CLC_VECTOR_CONVERT_TO(_sat##ROUND) \
> ^
> ./generic/include/clc/convert.h:45:3: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO'
> _CLC_VECTOR_CONVERT_TO1(SUFFIX) \
> ^
> ./generic/include/clc/convert.h:34:3: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO1'
> _CLC_VECTOR_CONVERT_FROM(uchar, SUFFIX) \
> ^
> ./generic/include/clc/convert.h:26:39: note: expanded from macro
> '_CLC_VECTOR_CONVERT_FROM'
> _CLC_VECTOR_CONVERT_DECL(FROM_TYPE, double, SUFFIX)
> ^
> ./generic/include/clc/convert.h:56:1: error: use of type 'double'
> requires cl_khr_fp64 extension to
> be enabled
> ./generic/include/clc/convert.h:53:3: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO_SUFFIX'
> _CLC_VECTOR_CONVERT_TO(_sat##ROUND) \
> ^
> ./generic/include/clc/convert.h:45:3: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO'
> _CLC_VECTOR_CONVERT_TO1(SUFFIX) \
> ^
> ./generic/include/clc/convert.h:35:3: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO1'
> _CLC_VECTOR_CONVERT_FROM(int, SUFFIX) \
> ^
> ./generic/include/clc/convert.h:26:39: note: expanded from macro
> '_CLC_VECTOR_CONVERT_FROM'
> _CLC_VECTOR_CONVERT_DECL(FROM_TYPE, double, SUFFIX)
> ^
> ./generic/include/clc/convert.h:56:1: error: use of type 'double'
> requires cl_khr_fp64 extension to
> be enabled
> ./generic/include/clc/convert.h:53:3: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO_SUFFIX'
> _CLC_VECTOR_CONVERT_TO(_sat##ROUND) \
> ^
> ./generic/include/clc/convert.h:45:3: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO'
> _CLC_VECTOR_CONVERT_TO1(SUFFIX) \
> ^
> ./generic/include/clc/convert.h:36:3: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO1'
> _CLC_VECTOR_CONVERT_FROM(uint, SUFFIX) \
> ^
> ./generic/include/clc/convert.h:26:39: note: expanded from macro
> '_CLC_VECTOR_CONVERT_FROM'
> _CLC_VECTOR_CONVERT_DECL(FROM_TYPE, double, SUFFIX)
> ^
> ./generic/include/clc/convert.h:56:1: error: use of type 'double'
> requires cl_khr_fp64 extension to
> be enabled
> ./generic/include/clc/convert.h:53:3: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO_SUFFIX'
> _CLC_VECTOR_CONVERT_TO(_sat##ROUND) \
> ^
> ./generic/include/clc/convert.h:45:3: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO'
> _CLC_VECTOR_CONVERT_TO1(SUFFIX) \
> ^
> ./generic/include/clc/convert.h:37:3: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO1'
> _CLC_VECTOR_CONVERT_FROM(short, SUFFIX) \
> ^
> ./generic/include/clc/convert.h:26:39: note: expanded from macro
> '_CLC_VECTOR_CONVERT_FROM'
> _CLC_VECTOR_CONVERT_DECL(FROM_TYPE, double, SUFFIX)
> ^
> ./generic/include/clc/convert.h:56:1: error: use of type 'double'
> requires cl_khr_fp64 extension to
> be enabled
> ./generic/include/clc/convert.h:53:3: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO_SUFFIX'
> _CLC_VECTOR_CONVERT_TO(_sat##ROUND) \
> ^
> ./generic/include/clc/convert.h:45:3: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO'
> _CLC_VECTOR_CONVERT_TO1(SUFFIX) \
> ^
> ./generic/include/clc/convert.h:38:3: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO1'
> _CLC_VECTOR_CONVERT_FROM(ushort, SUFFIX) \
> ^
> ./generic/include/clc/convert.h:26:39: note: expanded from macro
> '_CLC_VECTOR_CONVERT_FROM'
> _CLC_VECTOR_CONVERT_DECL(FROM_TYPE, double, SUFFIX)
> ^
> ./generic/include/clc/convert.h:56:1: error: use of type 'double'
> requires cl_khr_fp64 extension to
> be enabled
> ./generic/include/clc/convert.h:53:3: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO_SUFFIX'
> _CLC_VECTOR_CONVERT_TO(_sat##ROUND) \
> ^
> ./generic/include/clc/convert.h:45:3: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO'
> _CLC_VECTOR_CONVERT_TO1(SUFFIX) \
> ^
> ./generic/include/clc/convert.h:39:3: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO1'
> _CLC_VECTOR_CONVERT_FROM(long, SUFFIX) \
> ^
> ./generic/include/clc/convert.h:26:39: note: expanded from macro
> '_CLC_VECTOR_CONVERT_FROM'
> _CLC_VECTOR_CONVERT_DECL(FROM_TYPE, double, SUFFIX)
> ^
> ./generic/include/clc/convert.h:56:1: error: use of type 'double'
> requires cl_khr_fp64 extension to
> be enabled
> ./generic/include/clc/convert.h:53:3: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO_SUFFIX'
> _CLC_VECTOR_CONVERT_TO(_sat##ROUND) \
> ^
> ./generic/include/clc/convert.h:45:3: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO'
> _CLC_VECTOR_CONVERT_TO1(SUFFIX) \
> ^
> ./generic/include/clc/convert.h:40:3: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO1'
> _CLC_VECTOR_CONVERT_FROM(ulong, SUFFIX) \
> ^
> ./generic/include/clc/convert.h:26:39: note: expanded from macro
> '_CLC_VECTOR_CONVERT_FROM'
> _CLC_VECTOR_CONVERT_DECL(FROM_TYPE, double, SUFFIX)
> ^
> ./generic/include/clc/convert.h:56:1: error: use of type 'double'
> requires cl_khr_fp64 extension to
> be enabled
> ./generic/include/clc/convert.h:53:3: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO_SUFFIX'
> _CLC_VECTOR_CONVERT_TO(_sat##ROUND) \
> ^
> ./generic/include/clc/convert.h:45:3: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO'
> _CLC_VECTOR_CONVERT_TO1(SUFFIX) \
> ^
> ./generic/include/clc/convert.h:41:3: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO1'
> _CLC_VECTOR_CONVERT_FROM(float, SUFFIX)
> ^
> ./generic/include/clc/convert.h:26:39: note: expanded from macro
> '_CLC_VECTOR_CONVERT_FROM'
> _CLC_VECTOR_CONVERT_DECL(FROM_TYPE, double, SUFFIX)
> ^
> ./generic/include/clc/convert.h:56:1: error: use of type 'double'
> requires cl_khr_fp64 extension to
> be enabled
> ./generic/include/clc/convert.h:53:3: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO_SUFFIX'
> _CLC_VECTOR_CONVERT_TO(_sat##ROUND) \
> ^
> ./generic/include/clc/convert.h:46:28: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO'
> _CLC_VECTOR_CONVERT_FROM(double, SUFFIX)
> ^
> ./generic/include/clc/convert.h:56:1: error: use of type 'double'
> requires cl_khr_fp64 extension to
> be enabled
> ./generic/include/clc/convert.h:53:3: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO_SUFFIX'
> _CLC_VECTOR_CONVERT_TO(_sat##ROUND) \
> ^
> ./generic/include/clc/convert.h:46:28: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO'
> _CLC_VECTOR_CONVERT_FROM(double, SUFFIX)
> ^
> ./generic/include/clc/convert.h:56:1: error: use of type 'double'
> requires cl_khr_fp64 extension to
> be enabled
> ./generic/include/clc/convert.h:53:3: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO_SUFFIX'
> _CLC_VECTOR_CONVERT_TO(_sat##ROUND) \
> ^
> ./generic/include/clc/convert.h:46:28: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO'
> _CLC_VECTOR_CONVERT_FROM(double, SUFFIX)
> ^
> ./generic/include/clc/convert.h:56:1: error: use of type 'double'
> requires cl_khr_fp64 extension to
> be enabled
> ./generic/include/clc/convert.h:53:3: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO_SUFFIX'
> _CLC_VECTOR_CONVERT_TO(_sat##ROUND) \
> ^
> ./generic/include/clc/convert.h:46:28: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO'
> _CLC_VECTOR_CONVERT_FROM(double, SUFFIX)
> ^
> ./generic/include/clc/convert.h:56:1: error: use of type 'double'
> requires cl_khr_fp64 extension to
> be enabled
> ./generic/include/clc/convert.h:53:3: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO_SUFFIX'
> _CLC_VECTOR_CONVERT_TO(_sat##ROUND) \
> ^
> ./generic/include/clc/convert.h:46:28: note: expanded from macro
> '_CLC_VECTOR_CONVERT_TO'
> _CLC_VECTOR_CONVERT_FROM(double, SUFFIX)
> ^
> fatal error: too many errors emitted, stopping now [-ferror-limit=]
> 2 warnings and 20 errors generated.
> Makefile:29: recipe for target
> 'nvptx--nvidiacl/lib/synchronization/barrier.cl.bc' failed
> make: *** [nvptx--nvidiacl/lib/synchronization/barrier.cl.bc] Error 1
> 0.488u 0.036s 0:00.54 94.4% 0+0k 0+40io 0pf+0w
> _______________________________________________
> Libclc-dev mailing list
> Libclc-dev at lists.llvm.org
> http://lists.llvm.org/cgi-bin/mailman/listinfo/libclc-dev
--
Jan Vesely <jan.vesely at rutgers.edu>
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