diff options
| author | Roland Scheidegger <[email protected]> | 2016-05-08 00:40:07 +0200 |
|---|---|---|
| committer | Roland Scheidegger <[email protected]> | 2016-05-10 17:08:16 +0200 |
| commit | 8b66e2647d5e36e318177a460e6e586d6ca8c36b (patch) | |
| tree | 4613d61ac1904a08c21f5ffc22732db5661374f5 /src/gallium/auxiliary | |
| parent | 94e8653a3bb9044847451b8a202da07d51adcc3a (diff) | |
gallivm: disable avx512 features
We don't target this yet, and some llvm versions incorrectly enable it based
on cpu string, causing crashes.
(Albeit this is a losing battle, it is pretty much guaranteed when the next
new feature comes along llvm will mistakenly enable it on some future cpu,
thus we would have to proactively disable all new features as llvm adds them.)
This should fix https://bugs.freedesktop.org/show_bug.cgi?id=94291 (untested)
Tested-by: Timo Aaltonen <[email protected]>
Reviewed-by: Jose Fonseca <[email protected]
CC: <[email protected]>
Diffstat (limited to 'src/gallium/auxiliary')
| -rw-r--r-- | src/gallium/auxiliary/gallivm/lp_bld_misc.cpp | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp b/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp index bb08892142a..42a53ecb092 100644 --- a/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp +++ b/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp @@ -571,6 +571,18 @@ lp_build_create_jit_compiler_for_module(LLVMExecutionEngineRef *OutJIT, MAttrs.push_back(util_cpu_caps.has_avx ? "+avx" : "-avx"); MAttrs.push_back(util_cpu_caps.has_f16c ? "+f16c" : "-f16c"); MAttrs.push_back(util_cpu_caps.has_avx2 ? "+avx2" : "-avx2"); + /* disable avx512 and all subvariants */ +#if HAVE_LLVM >= 0x0304 + MAttrs.push_back("-avx512cd"); + MAttrs.push_back("-avx512er"); + MAttrs.push_back("-avx512f"); + MAttrs.push_back("-avx512pf"); +#endif +#if HAVE_LLVM >= 0x0305 + MAttrs.push_back("-avx512bw"); + MAttrs.push_back("-avx512dq"); + MAttrs.push_back("-avx512vl"); +#endif #endif #if defined(PIPE_ARCH_PPC) |