Imported WebKit commit 953baa67aa07087b6ecd4199351ec554c724e27d (http://svn.webkit.org/repository/webkit/trunk@122676)

1 files changed, 27 insertions, 0 deletions

diff --git a/Source/JavaScriptCore/assembler/MIPSAssembler.h b/Source/JavaScriptCore/assembler/MIPSAssembler.h
index 7212a182c..65307d950 100644
--- a/Source/JavaScriptCore/assembler/MIPSAssembler.h
+++ b/Source/JavaScriptCore/assembler/MIPSAssembler.h
@@ -616,6 +616,11 @@ public:
 
     // General helpers
 
+    AssemblerLabel labelIgnoringWatchpoints()
+    {
+        return m_buffer.label();
+    }
+
     AssemblerLabel label()
     {
         return m_buffer.label();
@@ -809,6 +814,28 @@ public:
 #endif
     }
 
+    static void replaceWithLoad(void* instructionStart)
+    {
+        MIPSWord* insn = reinterpret_cast<MIPSWord*>(instructionStart);
+        ASSERT((*insn & 0xffe00000) == 0x3c000000); // lui
+        insn++;
+        ASSERT((*insn & 0xfc0007ff) == 0x00000021); // addu
+        insn++;
+        *insn = 0x8c000000 | ((*insn) & 0x3ffffff); // lw
+        cacheFlush(insn, 4);
+    }
+
+    static void replaceWithAddressComputation(void* instructionStart)
+    {
+        MIPSWord* insn = reinterpret_cast<MIPSWord*>(instructionStart);
+        ASSERT((*insn & 0xffe00000) == 0x3c000000); // lui
+        insn++;
+        ASSERT((*insn & 0xfc0007ff) == 0x00000021); // addu
+        insn++;
+        *insn = 0x24000000 | ((*insn) & 0x3ffffff); // addiu
+        cacheFlush(insn, 4);
+    }
+
 private:
     /* Update each jump in the buffer of newBase.  */
     void relocateJumps(void* oldBase, void* newBase)