art: Handle x86_64 architecture equal to x86

This patch forces FE/ME to treat x86_64 as x86 exactly.
The x86_64 logic will be revised later when assembly will be ready.

Change-Id: I4a92477a6eeaa9a11fd710d35c602d8d6f88cbb6
Signed-off-by: Dmitry Petrochenko <dmitry.petrochenko@intel.com>
diff --git a/compiler/dex/quick/x86/target_x86.cc b/compiler/dex/quick/x86/target_x86.cc
index 925e736..dcc5d9b 100644
--- a/compiler/dex/quick/x86/target_x86.cc
+++ b/compiler/dex/quick/x86/target_x86.cc
@@ -149,7 +149,7 @@
 }
 
 void X86Mir2Lir::SetupTargetResourceMasks(LIR* lir, uint64_t flags) {
-  DCHECK_EQ(cu_->instruction_set, kX86);
+  DCHECK(cu_->instruction_set == kX86 || cu_->instruction_set == kX86_64);
   DCHECK(!lir->flags.use_def_invalid);
 
   // X86-specific resource map setup here.