Second step for computing SSA: renaming.

vm/intermediate_language.cc

Index: vm/intermediate_language.cc
===================================================================
--- vm/intermediate_language.cc	(revision 8786)
+++ vm/intermediate_language.cc	(working copy)
@@ -140,6 +140,15 @@
 }
 
 
+void CreateArrayComp::SetInputAt(intptr_t i, Value* value) {
+  if (i == 0) {
+    inputs_[0] = value;
+  } else {
+    (*elements_)[i - 1] = value;
+  }
+}
+
+
 intptr_t BranchInstr::InputCount() const {
   return 1;
 }
@@ -152,6 +161,15 @@
 }
 
 
+void BranchInstr::SetInputAt(intptr_t i, Value* value) {
+  if (i == 0) {
+    value_ = value;
+    return;
+  }
+  UNREACHABLE();
+}
+
+
 intptr_t ReThrowInstr::InputCount() const {
   return 2;
 }
@@ -165,6 +183,19 @@
 }
 
 
+void ReThrowInstr::SetInputAt(intptr_t i, Value* value) {
+  if (i == 0) {
+    exception_ = value;
+    return;
+  }
+  if (i == 1) {
+    stack_trace_ = value;
+    return;
+  }
+  UNREACHABLE();
+}
+
+
 intptr_t ThrowInstr::InputCount() const {
   return 1;
 }
@@ -177,6 +208,15 @@
 }
 
 
+void ThrowInstr::SetInputAt(intptr_t i, Value* value) {
+  if (i == 0) {
+    exception_ = value;
+    return;
+  }
+  UNREACHABLE();
+}
+
+
 intptr_t ReturnInstr::InputCount() const {
   return 1;
 }
@@ -189,6 +229,15 @@
 }
 
 
+void ReturnInstr::SetInputAt(intptr_t i, Value* value) {
+  if (i == 0) {
+    value_ = value;
+    return;
+  }
+  UNREACHABLE();
+}
+
+
 intptr_t BindInstr::InputCount() const {
   return computation()->InputCount();
 }
@@ -199,6 +248,11 @@
 }
 
 
+void BindInstr::SetInputAt(intptr_t i, Value* value) {
+  computation()->SetInputAt(i, value);
+}
+
+
 intptr_t PhiInstr::InputCount() const {
   return inputs_.length();
 }
@@ -209,6 +263,11 @@
 }
 
 
+void PhiInstr::SetInputAt(intptr_t i, Value* value) {
+  inputs_[i] = value;
+}
+
+
 intptr_t DoInstr::InputCount() const {
   return computation()->InputCount();
 }
@@ -219,6 +278,11 @@
 }
 
 
+void DoInstr::SetInputAt(intptr_t i, Value* value) {
+  computation()->SetInputAt(i, value);
+}
+
+
 intptr_t GraphEntryInstr::InputCount() const {
   return 0;
 }
@@ -230,6 +294,11 @@
 }
 
 
+void GraphEntryInstr::SetInputAt(intptr_t i, Value* value) {
+  UNREACHABLE();
+}
+
+
 intptr_t TargetEntryInstr::InputCount() const {
   return 0;
 }
@@ -241,6 +310,11 @@
 }
 
 
+void TargetEntryInstr::SetInputAt(intptr_t i, Value* value) {
+  UNREACHABLE();
+}
+
+
 intptr_t JoinEntryInstr::InputCount() const {
   return 0;
 }
@@ -252,6 +326,11 @@
 }
 
 
+void JoinEntryInstr::SetInputAt(intptr_t i, Value* value) {
+  UNREACHABLE();
+}
+
+
 // ==== Recording assigned variables.
 void Computation::RecordAssignedVars(BitVector* assigned_vars) {
   // Nothing to do for the base class.