ARM/ARM64: Extend support of instruction combining.
Combine multiply instructions in the following way:
ARM64:
MUL/NEG -> MNEG
ARM32 (32-bit integers only):
MUL/ADD -> MLA
MUL/SUB -> MLS
Change-Id: If20f2d8fb060145ab6fbceeb5a8f1a3d02e0ecdb
diff --git a/compiler/optimizing/optimizing_compiler.cc b/compiler/optimizing/optimizing_compiler.cc
index fffd005..4da48bd 100644
--- a/compiler/optimizing/optimizing_compiler.cc
+++ b/compiler/optimizing/optimizing_compiler.cc
@@ -62,6 +62,7 @@
#include "induction_var_analysis.h"
#include "inliner.h"
#include "instruction_simplifier.h"
+#include "instruction_simplifier_arm.h"
#include "intrinsics.h"
#include "jit/debugger_interface.h"
#include "jit/jit_code_cache.h"
@@ -445,8 +446,11 @@
case kThumb2:
case kArm: {
arm::DexCacheArrayFixups* fixups = new (arena) arm::DexCacheArrayFixups(graph, stats);
+ arm::InstructionSimplifierArm* simplifier =
+ new (arena) arm::InstructionSimplifierArm(graph, stats);
HOptimization* arm_optimizations[] = {
- fixups
+ fixups,
+ simplifier
};
RunOptimizations(arm_optimizations, arraysize(arm_optimizations), pass_observer);
break;