commit e63a745f26fec5a5b4162fc83f6e88a1f696c30c
author Hiroshi Yamauchi <yamauchi@google.com> Thu Feb 27 14:44:36 2014 -0800
committer Hiroshi Yamauchi <yamauchi@google.com> Wed Mar 05 19:20:14 2014 -0800
tree f26e1429c8226c5dde5ee4c361a57754ff46298c
parent e26baffe7f9e2a54f276f5c65e48454e413683ba

Make heap reference poisoning work with the interpreter.

It is disabled by default.

Bug: 12687968
Change-Id: Iee0cad647f341a7b566f4cf74c2770d1c19312c9

compiler/utils/x86/assembler_x86.cc

diff --git a/compiler/utils/x86/assembler_x86.cc b/compiler/utils/x86/assembler_x86.cc
index 136d248..1616502 100644
--- a/compiler/utils/x86/assembler_x86.cc
+++ b/compiler/utils/x86/assembler_x86.cc
@@ -1553,6 +1553,9 @@
   X86ManagedRegister dest = mdest.AsX86();
   CHECK(dest.IsCpuRegister() && dest.IsCpuRegister());
   movl(dest.AsCpuRegister(), Address(base.AsX86().AsCpuRegister(), offs));
+  if (kPoisonHeapReferences) {
+    negl(dest.AsCpuRegister());
+  }
 }
 
 void X86Assembler::LoadRawPtr(ManagedRegister mdest, ManagedRegister base,