Use llvm provided API based on cpuid rather than our own
manually mantained list of mattr enabling/disabling.
---
src/gallium/auxiliary/gallivm/lp_bld_misc.cpp | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp
b/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp
index a68428d..21d9e15 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp
+++ b/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp
@@ -542,6 +542,20 @@
lp_build_create_jit_compiler_for_module(LLVMExecutionEngineRef *OutJIT,
llvm::SmallVector<std::string, 16> MAttrs;
#if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64)
+#if HAVE_LLVM >= 0x0400
+ /* llvm-3.7+ implements sys::getHostCPUFeatures for x86,
+ * which allows us to enable/disable code generation based
+ * on the results of cpuid.
+ */
+ llvm::StringMap<bool> features;
+ llvm::sys::getHostCPUFeatures(features);
+
+ for (StringMapIterator<bool> f = features.begin();
+ f != features.end();
+ ++f) {
+ MAttrs.push_back(((*f).second ? "+" : "-") + (*f).first().str());
+ }
+#else
/*
* We need to unset attributes because sometimes LLVM mistakenly assumes
* certain features are present given the processor name.
@@ -596,6 +610,7 @@
lp_build_create_jit_compiler_for_module(LLVMExecutionEngineRef *OutJIT,
MAttrs.push_back("-avx512vl");
#endif
#endif
+#endif
#if defined(PIPE_ARCH_PPC)
MAttrs.push_back(util_cpu_caps.has_altivec ? "+altivec" : "-altivec");
--
2.9.3
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