Optimize easy multiply and easy div remainder.
Update OpRegRegShift and OpRegRegRegShift to use RegStorage parameters.
Add special cases for *0 and *1. Add more easy multiply special cases for
Arm.
Reuse easy multiply in SmallLiteralDivRem() to support remainder cases.
Change-Id: Icd76a993d3ac8d4988e9653c19eab4efca14fad0
diff --git a/compiler/dex/quick/mips/codegen_mips.h b/compiler/dex/quick/mips/codegen_mips.h
index bc1ad02..0ef43b3 100644
--- a/compiler/dex/quick/mips/codegen_mips.h
+++ b/compiler/dex/quick/mips/codegen_mips.h
@@ -22,13 +22,14 @@
namespace art {
-class MipsMir2Lir : public Mir2Lir {
+class MipsMir2Lir FINAL : public Mir2Lir {
public:
MipsMir2Lir(CompilationUnit* cu, MIRGraph* mir_graph, ArenaAllocator* arena);
// Required for target - codegen utilities.
bool SmallLiteralDivRem(Instruction::Code dalvik_opcode, bool is_div, RegLocation rl_src,
RegLocation rl_dest, int lit);
+ bool EasyMultiply(RegLocation rl_src, RegLocation rl_dest, int lit) OVERRIDE;
LIR* CheckSuspendUsingLoad() OVERRIDE;
RegStorage LoadHelper(ThreadOffset offset);
LIR* LoadBaseDisp(int r_base, int displacement, int r_dest, OpSize size, int s_reg);
diff --git a/compiler/dex/quick/mips/int_mips.cc b/compiler/dex/quick/mips/int_mips.cc
index dfe8b35..270d895 100644
--- a/compiler/dex/quick/mips/int_mips.cc
+++ b/compiler/dex/quick/mips/int_mips.cc
@@ -368,6 +368,11 @@
return false;
}
+bool MipsMir2Lir::EasyMultiply(RegLocation rl_src, RegLocation rl_dest, int lit) {
+ LOG(FATAL) << "Unexpected use of easyMultiply in Mips";
+ return false;
+}
+
LIR* MipsMir2Lir::OpIT(ConditionCode cond, const char* guide) {
LOG(FATAL) << "Unexpected use of OpIT in Mips";
return NULL;