ldrd/strd

src/arm/codegen-arm.cc

Index: src/arm/codegen-arm.cc
===================================================================
--- src/arm/codegen-arm.cc	(revision 4607)
+++ src/arm/codegen-arm.cc	(working copy)
@@ -1486,8 +1486,7 @@
   // Then process it as a normal function call.
   __ ldr(r0, MemOperand(sp, 3 * kPointerSize));
   __ ldr(r1, MemOperand(sp, 2 * kPointerSize));
-  __ str(r0, MemOperand(sp, 2 * kPointerSize));
-  __ str(r1, MemOperand(sp, 3 * kPointerSize));
+  __ strd(r0, MemOperand(sp, 2 * kPointerSize));
 
   CallFunctionStub call_function(2, NOT_IN_LOOP, NO_CALL_FUNCTION_FLAGS);
   frame_->CallStub(&call_function, 3);
@@ -2279,8 +2278,8 @@
   node->break_target()->set_direction(JumpTarget::FORWARD_ONLY);
   node->continue_target()->set_direction(JumpTarget::FORWARD_ONLY);
 
-  __ ldr(r0, frame_->ElementAt(0));  // load the current count
-  __ ldr(r1, frame_->ElementAt(1));  // load the length
+  // Load the current count to r0, load the length to r1.
+  __ ldrd(r0, frame_->ElementAt(0));
   __ cmp(r0, r1);  // compare to the array length
   node->break_target()->Branch(hs);
 
@@ -6248,8 +6247,7 @@
     ConvertToDoubleStub stub1(r3, r2, r7, r6);
     __ Call(stub1.GetCode(), RelocInfo::CODE_TARGET);
     // Load rhs to a double in r0, r1.
-    __ ldr(r1, FieldMemOperand(r0, HeapNumber::kValueOffset + kPointerSize));
-    __ ldr(r0, FieldMemOperand(r0, HeapNumber::kValueOffset));
+    __ ldrd(r0, FieldMemOperand(r0, HeapNumber::kValueOffset));
     __ pop(lr);
   }
 
@@ -6284,8 +6282,7 @@
   } else {
     __ push(lr);
     // Load lhs to a double in r2, r3.
-    __ ldr(r3, FieldMemOperand(r1, HeapNumber::kValueOffset + kPointerSize));
-    __ ldr(r2, FieldMemOperand(r1, HeapNumber::kValueOffset));
+    __ ldrd(r2, FieldMemOperand(r1, HeapNumber::kValueOffset));
     // Convert rhs to a double in r0, r1.
     __ mov(r7, Operand(r0));
     ConvertToDoubleStub stub2(r1, r0, r7, r6);
@@ -6449,10 +6446,8 @@
     __ sub(r7, r1, Operand(kHeapObjectTag));
     __ vldr(d7, r7, HeapNumber::kValueOffset);
   } else {
-    __ ldr(r2, FieldMemOperand(r1, HeapNumber::kValueOffset));
-    __ ldr(r3, FieldMemOperand(r1, HeapNumber::kValueOffset + kPointerSize));
-    __ ldr(r1, FieldMemOperand(r0, HeapNumber::kValueOffset + kPointerSize));
-    __ ldr(r0, FieldMemOperand(r0, HeapNumber::kValueOffset));
+    __ ldrd(r2, FieldMemOperand(r1, HeapNumber::kValueOffset));
+    __ ldrd(r0, FieldMemOperand(r0, HeapNumber::kValueOffset));
   }
   __ jmp(both_loaded_as_doubles);
 }
@@ -6829,8 +6824,7 @@
       __ vldr(d7, r7, HeapNumber::kValueOffset);
     } else {
       // Calling convention says that second double is in r2 and r3.
-      __ ldr(r2, FieldMemOperand(r0, HeapNumber::kValueOffset));
-      __ ldr(r3, FieldMemOperand(r0, HeapNumber::kValueOffset + 4));
+      __ ldrd(r2, FieldMemOperand(r0, HeapNumber::kValueOffset));
     }
     __ jmp(&finished_loading_r0);
     __ bind(&r0_is_smi);
@@ -6882,8 +6876,7 @@
       __ vldr(d6, r7, HeapNumber::kValueOffset);
     } else {
       // Calling convention says that first double is in r0 and r1.
-      __ ldr(r0, FieldMemOperand(r1, HeapNumber::kValueOffset));
-      __ ldr(r1, FieldMemOperand(r1, HeapNumber::kValueOffset + 4));
+      __ ldrd(r0, FieldMemOperand(r1, HeapNumber::kValueOffset));
     }
     __ jmp(&finished_loading_r1);
     __ bind(&r1_is_smi);
@@ -6954,8 +6947,7 @@
       __ stc(p1, cr8, MemOperand(r4, HeapNumber::kValueOffset));
   #else
       // Double returned in registers 0 and 1.
-      __ str(r0, FieldMemOperand(r5, HeapNumber::kValueOffset));
-      __ str(r1, FieldMemOperand(r5, HeapNumber::kValueOffset + 4));
+      __ strd(r0, FieldMemOperand(r5, HeapNumber::kValueOffset));
   #endif
       __ mov(r0, Operand(r5));
       // And we are done.