MIPS[64]: Support for MSA instructions

src/base/cpu.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/base/cpu.h"
 
 #if V8_LIBC_MSVCRT
 #include <intrin.h>  // __cpuid()
 #endif
 #if V8_OS_LINUX
@@ skipping 578 matching lines @@
 #elif V8_HOST_ARCH_MIPS || V8_HOST_ARCH_MIPS64
 
   // Simple detection of FPU at runtime for Linux.
   // It is based on /proc/cpuinfo, which reveals hardware configuration
   // to user-space applications.  According to MIPS (early 2010), no similar
   // facility is universally available on the MIPS architectures,
   // so it's up to individual OSes to provide such.
   CPUInfo cpu_info;
   char* cpu_model = cpu_info.ExtractField("cpu model");
   has_fpu_ = HasListItem(cpu_model, "FPU");
+  char* ASEs = cpu_info.ExtractField("ASEs implemented");
+  has_msa_ = HasListItem(ASEs, "msa");
   delete[] cpu_model;
+  delete[] ASEs;
 #ifdef V8_HOST_ARCH_MIPS
   is_fp64_mode_ = __detect_fp64_mode();
   architecture_ = __detect_mips_arch_revision();
 #endif
 
 #elif V8_HOST_ARCH_ARM64
 
   CPUInfo cpu_info;
 
   // Extract implementor from the "CPU implementer" field.
@@ skipping 100 matching lines @@
       part_ = PPC_POWER5;
       break;
   }
 #endif  // V8_OS_AIX
 #endif  // !USE_SIMULATOR
 #endif  // V8_HOST_ARCH_PPC
 }
 
 }  // namespace base
 }  // namespace v8