Version 4.6.85.2 (cherry-pick)

src/compiler/x87/instruction-selector-x87.cc

Index: src/compiler/x87/instruction-selector-x87.cc
diff --git a/src/compiler/x87/instruction-selector-x87.cc b/src/compiler/x87/instruction-selector-x87.cc
index 04a7d5a09af40ebb8787c354b7e702ceaee64654..95aa70ac923c429a11b451a43f56c1da4c2a2c62 100644
--- a/src/compiler/x87/instruction-selector-x87.cc
+++ b/src/compiler/x87/instruction-selector-x87.cc
@@ -853,10 +853,14 @@ void InstructionSelector::VisitCall(Node* node, BasicBlock* handler) {
     // Push any stack arguments.
     for (Node* input : base::Reversed(buffer.pushed_nodes)) {
       // TODO(titzer): handle pushing double parameters.
+      if (input == nullptr) continue;
       InstructionOperand value =
           g.CanBeImmediate(input)
               ? g.UseImmediate(input)
-              : IsSupported(ATOM) ? g.UseRegister(input) : g.Use(input);
+              : IsSupported(ATOM) ||
+                        sequence()->IsFloat(GetVirtualRegister(input))
+                    ? g.UseRegister(input)
+                    : g.Use(input);
       Emit(kX87Push, g.NoOutput(), value);
     }
   }