Reland "MIPS64: Fix lithium arithmetic operations for integers to sign-extend result."

src/mips64/lithium-mips64.h

Index: src/mips64/lithium-mips64.h
diff --git a/src/mips64/lithium-mips64.h b/src/mips64/lithium-mips64.h
index 6928ae4b06a5549e041352cbd6c199086b6adc07..fc3bcae15e1e53529c863f31e4aaad947a087a94 100644
--- a/src/mips64/lithium-mips64.h
+++ b/src/mips64/lithium-mips64.h
@@ -19,8 +19,9 @@ class LCodeGen;
 
 #define LITHIUM_CONCRETE_INSTRUCTION_LIST(V) \
   V(AccessArgumentsAt)                       \
-  V(AddI)                                    \
   V(AddE)                                    \
+  V(AddI)                                    \
+  V(AddS)                                    \
   V(Allocate)                                \
   V(AllocateBlockContext)                    \
   V(ApplyArguments)                          \
@@ -123,6 +124,7 @@ class LCodeGen;
   V(ModByPowerOf2I)                          \
   V(ModI)                                    \
   V(MulI)                                    \
+  V(MulS)                                    \
   V(MultiplyAddD)                            \
   V(NumberTagD)                              \
   V(NumberTagU)                              \
@@ -151,6 +153,7 @@ class LCodeGen;
   V(StringCharFromCode)                      \
   V(StringCompareAndBranch)                  \
   V(SubI)                                    \
+  V(SubS)                                    \
   V(TaggedToI)                               \
   V(ThisFunction)                            \
   V(ToFastProperties)                        \
@@ -754,6 +757,21 @@ class LFlooringDivI final : public LTemplateInstruction<1, 2, 0> {
 };
 
 
+class LMulS final : public LTemplateInstruction<1, 2, 0> {
+ public:
+  LMulS(LOperand* left, LOperand* right) {
+    inputs_[0] = left;
+    inputs_[1] = right;
+  }
+
+  LOperand* left() { return inputs_[0]; }
+  LOperand* right() { return inputs_[1]; }
+
+  DECLARE_CONCRETE_INSTRUCTION(MulS, "mul-s")
+  DECLARE_HYDROGEN_ACCESSOR(Mul)
+};
+
+
 class LMulI final : public LTemplateInstruction<1, 2, 0> {
  public:
   LMulI(LOperand* left, LOperand* right) {
@@ -1274,6 +1292,21 @@ class LSubI final : public LTemplateInstruction<1, 2, 0> {
 };
 
 
+class LSubS final : public LTemplateInstruction<1, 2, 0> {
+ public:
+  LSubS(LOperand* left, LOperand* right) {
+    inputs_[0] = left;
+    inputs_[1] = right;
+  }
+
+  LOperand* left() { return inputs_[0]; }
+  LOperand* right() { return inputs_[1]; }
+
+  DECLARE_CONCRETE_INSTRUCTION(SubS, "sub-s")
+  DECLARE_HYDROGEN_ACCESSOR(Sub)
+};
+
+
 class LConstantI final : public LTemplateInstruction<1, 0, 0> {
  public:
   DECLARE_CONCRETE_INSTRUCTION(ConstantI, "constant-i")
@@ -1452,6 +1485,21 @@ class LAddI final : public LTemplateInstruction<1, 2, 0> {
 };
 
 
+class LAddS final : public LTemplateInstruction<1, 2, 0> {
+ public:
+  LAddS(LOperand* left, LOperand* right) {
+    inputs_[0] = left;
+    inputs_[1] = right;
+  }
+
+  LOperand* left() { return inputs_[0]; }
+  LOperand* right() { return inputs_[1]; }
+
+  DECLARE_CONCRETE_INSTRUCTION(AddS, "add-s")
+  DECLARE_HYDROGEN_ACCESSOR(Add)
+};
+
+
 class LMathMinMax final : public LTemplateInstruction<1, 2, 0> {
  public:
   LMathMinMax(LOperand* left, LOperand* right) {