Const-corrected some MachineSignature* parameters.

Recipe: Add "const" to RawMachineAssembler constructor, fix breakage.

Review URL: https://codereview.chromium.org/874693006

Cr-Commit-Position: refs/heads/master@{#26485}

src/compiler/arm/linkage-arm.cc

@@ -60,7 +60,7 @@ CallDescriptor* Linkage::GetStubCallDescriptor(
 
 
 CallDescriptor* Linkage::GetSimplifiedCDescriptor(Zone* zone,
-                                                  MachineSignature* sig) {
+                                                  const MachineSignature* sig) {
   return LH::GetSimplifiedCDescriptor(zone, sig);
 }
 

src/compiler/arm64/linkage-arm64.cc

@@ -60,7 +60,7 @@ CallDescriptor* Linkage::GetStubCallDescriptor(
 
 
 CallDescriptor* Linkage::GetSimplifiedCDescriptor(Zone* zone,
-                                                  MachineSignature* sig) {
+                                                  const MachineSignature* sig) {
   return LH::GetSimplifiedCDescriptor(zone, sig);
 }
 

src/compiler/ia32/linkage-ia32.cc

@@ -55,7 +55,7 @@ CallDescriptor* Linkage::GetStubCallDescriptor(
 
 
 CallDescriptor* Linkage::GetSimplifiedCDescriptor(Zone* zone,
-                                                  MachineSignature* sig) {
+                                                  const MachineSignature* sig) {
   return LH::GetSimplifiedCDescriptor(zone, sig);
 }
 

src/compiler/linkage-impl.h

@@ -192,8 +192,8 @@ class LinkageHelper {
         descriptor.DebugName(isolate));
   }
 
-  static CallDescriptor* GetSimplifiedCDescriptor(Zone* zone,
-                                                  MachineSignature* msig) {
+  static CallDescriptor* GetSimplifiedCDescriptor(
+      Zone* zone, const MachineSignature* msig) {
     LocationSignature::Builder locations(zone, msig->return_count(),
                                          msig->parameter_count());
     // Add return location(s).

src/compiler/linkage.h

@@ -64,8 +64,9 @@ class CallDescriptor FINAL : public ZoneObject {
   typedef base::Flags<Flag> Flags;
 
   CallDescriptor(Kind kind, MachineType target_type, LinkageLocation target_loc,
-                 MachineSignature* machine_sig, LocationSignature* location_sig,
-                 size_t js_param_count, Operator::Properties properties,
+                 const MachineSignature* machine_sig,
+                 LocationSignature* location_sig, size_t js_param_count,
+                 Operator::Properties properties,
                  RegList callee_saved_registers, Flags flags,
                  const char* debug_name = "")
       : kind_(kind),
@@ -209,7 +210,7 @@ class Linkage : public ZoneObject {
   // integers and pointers of one word size each, i.e. no floating point,
   // structs, pointers to members, etc.
   static CallDescriptor* GetSimplifiedCDescriptor(Zone* zone,
-                                                  MachineSignature* sig);
+                                                  const MachineSignature* sig);
 
   // Get the location of an (incoming) parameter to this function.
   LinkageLocation GetParameterLocation(int index) const {

src/compiler/mips/linkage-mips.cc

@@ -60,7 +60,7 @@ CallDescriptor* Linkage::GetStubCallDescriptor(
 
 
 CallDescriptor* Linkage::GetSimplifiedCDescriptor(Zone* zone,
-                                                  MachineSignature* sig) {
+                                                  const MachineSignature* sig) {
   return LH::GetSimplifiedCDescriptor(zone, sig);
 }
 

src/compiler/mips64/linkage-mips64.cc

@@ -60,7 +60,7 @@ CallDescriptor* Linkage::GetStubCallDescriptor(
 
 
 CallDescriptor* Linkage::GetSimplifiedCDescriptor(Zone* zone,
-                                                  MachineSignature* sig) {
+                                                  const MachineSignature* sig) {
   return LH::GetSimplifiedCDescriptor(zone, sig);
 }
 

src/compiler/ppc/linkage-ppc.cc

@@ -62,7 +62,7 @@ CallDescriptor* Linkage::GetStubCallDescriptor(
 
 
 CallDescriptor* Linkage::GetSimplifiedCDescriptor(Zone* zone,
-                                                  MachineSignature* sig) {
+                                                  const MachineSignature* sig) {
   return LH::GetSimplifiedCDescriptor(zone, sig);
 }
 

src/compiler/raw-machine-assembler.cc

@@ -12,7 +12,7 @@ namespace internal {
 namespace compiler {
 
 RawMachineAssembler::RawMachineAssembler(Isolate* isolate, Graph* graph,
-                                         MachineSignature* machine_sig,
+                                         const MachineSignature* machine_sig,
                                          MachineType word,
                                          MachineOperatorBuilder::Flags flags)
     : GraphBuilder(isolate, graph),

src/compiler/raw-machine-assembler.h

@@ -45,7 +45,7 @@ class RawMachineAssembler : public GraphBuilder {
   };
 
   RawMachineAssembler(Isolate* isolate, Graph* graph,
-                      MachineSignature* machine_sig,
+                      const MachineSignature* machine_sig,
                       MachineType word = kMachPtr,
                       MachineOperatorBuilder::Flags flags =
                           MachineOperatorBuilder::Flag::kNoFlags);
@@ -56,7 +56,7 @@ class RawMachineAssembler : public GraphBuilder {
   CommonOperatorBuilder* common() { return &common_; }
   CallDescriptor* call_descriptor() const { return call_descriptor_; }
   size_t parameter_count() const { return machine_sig_->parameter_count(); }
-  MachineSignature* machine_sig() const { return machine_sig_; }
+  const MachineSignature* machine_sig() const { return machine_sig_; }
 
   Node* UndefinedConstant() {
     Unique<HeapObject> unique = Unique<HeapObject>::CreateImmovable(
@@ -448,7 +448,7 @@ class RawMachineAssembler : public GraphBuilder {
   Schedule* schedule_;
   MachineOperatorBuilder machine_;
   CommonOperatorBuilder common_;
-  MachineSignature* machine_sig_;
+  const MachineSignature* machine_sig_;
   CallDescriptor* call_descriptor_;
   Node** parameters_;
   Label exit_label_;

src/compiler/x64/linkage-x64.cc

@@ -74,7 +74,7 @@ CallDescriptor* Linkage::GetStubCallDescriptor(
 
 
 CallDescriptor* Linkage::GetSimplifiedCDescriptor(Zone* zone,
-                                                  MachineSignature* sig) {
+                                                  const MachineSignature* sig) {
   return LH::GetSimplifiedCDescriptor(zone, sig);
 }