Make snapshots reproducible.

src/ia32/assembler-ia32-inl.h

Index: src/ia32/assembler-ia32-inl.h
diff --git a/src/ia32/assembler-ia32-inl.h b/src/ia32/assembler-ia32-inl.h
index 05cc23a71d952cb4e4727d2237c2780c06faa0d5..62619d68c3147dad4474a08a255c0cda9b9ec949 100644
--- a/src/ia32/assembler-ia32-inl.h
+++ b/src/ia32/assembler-ia32-inl.h
@@ -249,6 +249,17 @@ Object** RelocInfo::call_object_address() {
 }
 
 
+void RelocInfo::WipeOut() {
+  if (IsEmbeddedObject(rmode_) || IsExternalReference(rmode_)) {
+    Memory::Address_at(pc_) = NULL;
+  } else if (IsCodeTarget(rmode_) || IsRuntimeEntry(rmode_)) {
+    Assembler::set_target_address_at(pc_, pc_ + sizeof(int32_t));

[Erik Corry, 2013/11/04 12:41:14]

Why add sizeof(int32_t) here?

[Sven Panne, 2013/11/04 13:03:19]

Because our Intel assemblers subtract this, but it is not strictly necessary,
any constant offset would do. I just wanted to effectively write zero at the
relocation.

+  } else {
+    UNREACHABLE();
+  }
+}
+
+
 bool RelocInfo::IsPatchedReturnSequence() {
   return *pc_ == kCallOpcode;
 }