A64: Synchronize with r15545.

src/ia32/full-codegen-ia32.cc

Index: src/ia32/full-codegen-ia32.cc
diff --git a/src/ia32/full-codegen-ia32.cc b/src/ia32/full-codegen-ia32.cc
index d04fdd4e65fa6726766afd21d572df42d5207998..5b14afbf033a62251510dcdb521e094291b4bcaf 100644
--- a/src/ia32/full-codegen-ia32.cc
+++ b/src/ia32/full-codegen-ia32.cc
@@ -27,7 +27,7 @@
 
 #include "v8.h"
 
-#if defined(V8_TARGET_ARCH_IA32)
+#if V8_TARGET_ARCH_IA32
 
 #include "code-stubs.h"
 #include "codegen.h"
@@ -107,6 +107,7 @@ class JumpPatchSite BASE_EMBEDDED {
 // formal parameter count expected by the function.
 //
 // The live registers are:
+//   o ecx: CallKind
 //   o edi: the JS function object being called (i.e. ourselves)
 //   o esi: our context
 //   o ebp: our caller's frame pointer
@@ -4363,10 +4364,7 @@ void FullCodeGenerator::VisitUnaryOperation(UnaryOperation* expr) {
 void FullCodeGenerator::EmitUnaryOperation(UnaryOperation* expr,
                                            const char* comment) {
   Comment cmt(masm_, comment);
-  bool can_overwrite = expr->expression()->ResultOverwriteAllowed();
-  UnaryOverwriteMode overwrite =
-      can_overwrite ? UNARY_OVERWRITE : UNARY_NO_OVERWRITE;
-  UnaryOpStub stub(expr->op(), overwrite);
+  UnaryOpStub stub(expr->op());
   // UnaryOpStub expects the argument to be in the
   // accumulator register eax.
   VisitForAccumulatorValue(expr->expression());