s390: fixed doubleregister name

src/compiler/s390/instruction-selector-s390.cc

Index: src/compiler/s390/instruction-selector-s390.cc
diff --git a/src/compiler/s390/instruction-selector-s390.cc b/src/compiler/s390/instruction-selector-s390.cc
index 1b1bd2f624d0295072ab7fae6b0df26e83bd13d2..cf4be39a1c78ac783e4beee1f1f15867c9b7baa1 100644
--- a/src/compiler/s390/instruction-selector-s390.cc
+++ b/src/compiler/s390/instruction-selector-s390.cc
@@ -1202,14 +1202,14 @@ void InstructionSelector::VisitFloat32Sqrt(Node* node) {
 void InstructionSelector::VisitFloat64Ieee754Unop(Node* node,
                                                   InstructionCode opcode) {
   S390OperandGenerator g(this);
-  Emit(opcode, g.DefineAsFixed(node, d0), g.UseFixed(node->InputAt(0), d0))
+  Emit(opcode, g.DefineAsFixed(node, d1), g.UseFixed(node->InputAt(0), d1))
       ->MarkAsCall();
 }
 
 void InstructionSelector::VisitFloat64Ieee754Binop(Node* node,
                                                    InstructionCode opcode) {
   S390OperandGenerator g(this);
-  Emit(opcode, g.DefineAsFixed(node, d0), g.UseFixed(node->InputAt(0), d0),
+  Emit(opcode, g.DefineAsFixed(node, d1), g.UseFixed(node->InputAt(0), d1),
        g.UseFixed(node->InputAt(1), d2))
       ->MarkAsCall();
 }