1 files changed, 9 insertions, 1 deletions
diff --git a/Source/JavaScriptCore/yarr/YarrJIT.cpp b/Source/JavaScriptCore/yarr/YarrJIT.cpp
index a3f467dc1..06faeaa1a 100644
--- a/Source/JavaScriptCore/yarr/YarrJIT.cpp
+++ b/Source/JavaScriptCore/yarr/YarrJIT.cpp
@@ -2477,6 +2477,14 @@ public:
     {
         generateEnter();
 
+        Jump hasInput = checkInput();
+        move(TrustedImm32(-1), returnRegister);
+        generateReturn();
+        hasInput.link(this);
+
+        for (unsigned i = 0; i < m_pattern.m_numSubpatterns + 1; ++i)
+            store32(TrustedImm32(-1), Address(output, (i << 1) * sizeof(int)));
+
         if (!m_pattern.m_body->m_hasFixedSize)
             store32(index, Address(output));
 
@@ -2497,7 +2505,7 @@ public:
         backtrack();
 
         // Link & finalize the code.
-        LinkBuffer linkBuffer(*globalData, this);
+        LinkBuffer linkBuffer(*globalData, this, REGEXP_CODE_ID);
         m_backtrackingState.linkDataLabels(linkBuffer);
         if (m_charSize == Char8)
             jitObject.set8BitCode(linkBuffer.finalizeCode());