Remove unused policy from register allocator.

DefineSameAsAny is never used and currently does exactly the
same as DefineSameAsFirst.

Review URL: http://codereview.chromium.org/6025014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6163 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

diff --git a/src/arm/lithium-arm.cc b/src/arm/lithium-arm.cc
index 3261337..87efc92 100644 (file)
--- a/src/arm/lithium-arm.cc
+++ b/src/arm/lithium-arm.cc
@@ -767,11 +767,6 @@ LInstruction* LChunkBuilder::DefineAsSpilled(LInstruction* instr, int index) {
 }
 
 
-LInstruction* LChunkBuilder::DefineSameAsAny(LInstruction* instr) {
-  return Define(instr, new LUnallocated(LUnallocated::SAME_AS_ANY_INPUT));
-}
-
-
 LInstruction* LChunkBuilder::DefineSameAsFirst(LInstruction* instr) {
   return Define(instr, new LUnallocated(LUnallocated::SAME_AS_FIRST_INPUT));
 }

diff --git a/src/arm/lithium-arm.h b/src/arm/lithium-arm.h
index b4c99a1..ec76ca0 100644 (file)
--- a/src/arm/lithium-arm.h
+++ b/src/arm/lithium-arm.h
@@ -2061,7 +2061,6 @@ class LChunkBuilder BASE_EMBEDDED {
   LInstruction* Define(LInstruction* instr);
   LInstruction* DefineAsRegister(LInstruction* instr);
   LInstruction* DefineAsSpilled(LInstruction* instr, int index);
-  LInstruction* DefineSameAsAny(LInstruction* instr);
   LInstruction* DefineSameAsFirst(LInstruction* instr);
   LInstruction* DefineFixed(LInstruction* instr, Register reg);
   LInstruction* DefineFixedDouble(LInstruction* instr, DoubleRegister reg);

diff --git a/src/ia32/lithium-ia32.cc b/src/ia32/lithium-ia32.cc
index 37175ec..4fde3d4 100644 (file)
--- a/src/ia32/lithium-ia32.cc
+++ b/src/ia32/lithium-ia32.cc
@@ -767,11 +767,6 @@ LInstruction* LChunkBuilder::DefineAsSpilled(LInstruction* instr, int index) {
 }
 
 
-LInstruction* LChunkBuilder::DefineSameAsAny(LInstruction* instr) {
-  return Define(instr, new LUnallocated(LUnallocated::SAME_AS_ANY_INPUT));
-}
-
-
 LInstruction* LChunkBuilder::DefineSameAsFirst(LInstruction* instr) {
   return Define(instr, new LUnallocated(LUnallocated::SAME_AS_FIRST_INPUT));
 }

diff --git a/src/ia32/lithium-ia32.h b/src/ia32/lithium-ia32.h
index 94bf8fd..00dc394 100644 (file)
--- a/src/ia32/lithium-ia32.h
+++ b/src/ia32/lithium-ia32.h
@@ -2087,7 +2087,6 @@ class LChunkBuilder BASE_EMBEDDED {
   LInstruction* Define(LInstruction* instr);
   LInstruction* DefineAsRegister(LInstruction* instr);
   LInstruction* DefineAsSpilled(LInstruction* instr, int index);
-  LInstruction* DefineSameAsAny(LInstruction* instr);
   LInstruction* DefineSameAsFirst(LInstruction* instr);
   LInstruction* DefineFixed(LInstruction* instr, Register reg);
   LInstruction* DefineFixedDouble(LInstruction* instr, XMMRegister reg);

diff --git a/src/lithium-allocator.cc b/src/lithium-allocator.cc
index 13db82a..eecc441 100644 (file)
--- a/src/lithium-allocator.cc
+++ b/src/lithium-allocator.cc
@@ -106,9 +106,6 @@ void LOperand::PrintTo(StringStream* stream) {
         case LUnallocated::SAME_AS_FIRST_INPUT:
           stream->Add("(1)");
           break;
-        case LUnallocated::SAME_AS_ANY_INPUT:
-          stream->Add("(A)");
-          break;
         case LUnallocated::ANY:
           stream->Add("(-)");
           break;

diff --git a/src/lithium-allocator.h b/src/lithium-allocator.h
index 5cebc0e..fe837e2 100644 (file)
--- a/src/lithium-allocator.h
+++ b/src/lithium-allocator.h
@@ -205,7 +205,6 @@ class LUnallocated: public LOperand {
     MUST_HAVE_REGISTER,
     WRITABLE_REGISTER,
     SAME_AS_FIRST_INPUT,
-    SAME_AS_ANY_INPUT,
     IGNORE
   };
 
@@ -276,7 +275,7 @@ class LUnallocated: public LOperand {
     return policy() == WRITABLE_REGISTER || policy() == MUST_HAVE_REGISTER;
   }
   bool HasSameAsInputPolicy() const {
-    return policy() == SAME_AS_FIRST_INPUT || policy() == SAME_AS_ANY_INPUT;
+    return policy() == SAME_AS_FIRST_INPUT;
   }
   Policy policy() const { return PolicyField::decode(value_); }
   void set_policy(Policy policy) {