[turbofan] Float32 LinkageLocations need double registers too.

src/compiler/instruction-selector-impl.h

Index: src/compiler/instruction-selector-impl.h
diff --git a/src/compiler/instruction-selector-impl.h b/src/compiler/instruction-selector-impl.h
index db9e100e018b429a8718475d348a795b51292035..50a94342c9abb97e16f853f79747615a3fb5d951 100644
--- a/src/compiler/instruction-selector-impl.h
+++ b/src/compiler/instruction-selector-impl.h
@@ -224,7 +224,8 @@ class OperandGenerator {
                                 location.AsCalleeFrameSlot(), virtual_register);
     }
     // a fixed register.
-    if (RepresentationOf(type) == kRepFloat64) {
+    MachineType rep = RepresentationOf(type);
+    if (rep == kRepFloat64 || rep == kRepFloat32) {
       return UnallocatedOperand(UnallocatedOperand::FIXED_DOUBLE_REGISTER,
                                 location.AsRegister(), virtual_register);
     }