commit dd121f637509a50d6744a0ad596f5dc627e0c60a
author Shalini Salomi Bodapati <shalini.salomi.bodapati@intel.com> Fri Oct 26 15:03:53 2018 +0530
committer Shalini Salomi Bodapati <shalini.salomi.bodapati@intel.com> Thu Nov 08 14:50:29 2018 +0530
tree 1e20c636cd40a5a87cae1cd0d0b55940c8111a20
parent fe59955fc41e277bf1c60378202ba785abb1e4a8

Emit bit manipulation instructions for x86 and x86_64

This patch performs instruction simplification to
generate instructions andn, blsmsk and blsr on
cpus that have avx2.

Test: test.py --host --64, test-art-host-gtest
Change-Id: Ie41a1b99ac2980f1e9f6a831a7d639bc3e248f0f
Signed-off-by: Shalini Salomi Bodapati <shalini.salomi.bodapati@intel.com>

compiler/optimizing/optimization.cc

diff --git a/compiler/optimizing/optimization.cc b/compiler/optimizing/optimization.cc
index 4b0941b..0f971e1 100644
--- a/compiler/optimizing/optimization.cc
+++ b/compiler/optimizing/optimization.cc
@@ -28,10 +28,14 @@
 #endif
 #ifdef ART_ENABLE_CODEGEN_x86
 #include "pc_relative_fixups_x86.h"
+#include "instruction_simplifier_x86.h"
 #endif
 #if defined(ART_ENABLE_CODEGEN_x86) || defined(ART_ENABLE_CODEGEN_x86_64)
 #include "x86_memory_gen.h"
 #endif
+#ifdef ART_ENABLE_CODEGEN_x86_64
+#include "instruction_simplifier_x86_64.h"
+#endif
 
 #include "bounds_check_elimination.h"
 #include "cha_guard_optimization.h"
@@ -113,6 +117,12 @@
 #ifdef ART_ENABLE_CODEGEN_x86
     case OptimizationPass::kPcRelativeFixupsX86:
       return x86::PcRelativeFixups::kPcRelativeFixupsX86PassName;
+    case OptimizationPass::kInstructionSimplifierX86:
+      return x86::InstructionSimplifierX86::kInstructionSimplifierX86PassName;
+#endif
+#ifdef ART_ENABLE_CODEGEN_x86_64
+    case OptimizationPass::kInstructionSimplifierX86_64:
+      return x86_64::InstructionSimplifierX86_64::kInstructionSimplifierX86_64PassName;
 #endif
 #if defined(ART_ENABLE_CODEGEN_x86) || defined(ART_ENABLE_CODEGEN_x86_64)
     case OptimizationPass::kX86MemoryOperandGeneration:
@@ -311,6 +321,14 @@
         DCHECK(alt_name == nullptr) << "arch-specific pass does not support alternative name";
         opt = new (allocator) x86::X86MemoryOperandGeneration(graph, codegen, stats);
         break;
+      case OptimizationPass::kInstructionSimplifierX86:
+       opt = new (allocator) x86::InstructionSimplifierX86(graph, codegen, stats);
+       break;
+#endif
+#ifdef ART_ENABLE_CODEGEN_x86_64
+      case OptimizationPass::kInstructionSimplifierX86_64:
+        opt = new (allocator) x86_64::InstructionSimplifierX86_64(graph, codegen, stats);
+        break;
 #endif
       case OptimizationPass::kNone:
         LOG(FATAL) << "kNone does not represent an actual pass";