From 4324dcc8cd85c6fb5cd79b9322a5f20a07f373c4 Mon Sep 17 00:00:00 2001
From: Bart Wiegmans <bartwiegmans@gmail.com>
Date: Thu, 5 Sep 2019 12:53:48 +0200
Subject: [PATCH] [JIT] Add devirtualization method for REPRs

---
 src/6model/6model.h                     | 4 ++++
 src/6model/reprs/CArray.c               | 1 +
 src/6model/reprs/CPPStruct.c            | 1 +
 src/6model/reprs/CPointer.c             | 1 +
 src/6model/reprs/CStr.c                 | 1 +
 src/6model/reprs/CStruct.c              | 1 +
 src/6model/reprs/CUnion.c               | 1 +
 src/6model/reprs/ConcBlockingQueue.c    | 1 +
 src/6model/reprs/ConditionVariable.c    | 1 +
 src/6model/reprs/Decoder.c              | 1 +
 src/6model/reprs/HashAttrStore.c        | 1 +
 src/6model/reprs/KnowHOWAttributeREPR.c | 1 +
 src/6model/reprs/KnowHOWREPR.c          | 1 +
 src/6model/reprs/MVMAsyncTask.c         | 1 +
 src/6model/reprs/MVMCFunction.c         | 1 +
 src/6model/reprs/MVMCallCapture.c       | 1 +
 src/6model/reprs/MVMCode.c              | 1 +
 src/6model/reprs/MVMCompUnit.c          | 1 +
 src/6model/reprs/MVMContext.c           | 1 +
 src/6model/reprs/MVMContinuation.c      | 1 +
 src/6model/reprs/MVMDLLSym.c            | 1 +
 src/6model/reprs/MVMException.c         | 1 +
 src/6model/reprs/MVMHash.c              | 1 +
 src/6model/reprs/MVMIter.c              | 1 +
 src/6model/reprs/MVMMultiCache.c        | 1 +
 src/6model/reprs/MVMNull.c              | 1 +
 src/6model/reprs/MVMOSHandle.c          | 1 +
 src/6model/reprs/MVMSpeshLog.c          | 1 +
 src/6model/reprs/MVMStaticFrame.c       | 1 +
 src/6model/reprs/MVMStaticFrameSpesh.c  | 1 +
 src/6model/reprs/MVMString.c            | 1 +
 src/6model/reprs/MVMThread.c            | 1 +
 src/6model/reprs/MultiDimArray.c        | 1 +
 src/6model/reprs/NFA.c                  | 1 +
 src/6model/reprs/NativeCall.c           | 1 +
 src/6model/reprs/NativeRef.c            | 1 +
 src/6model/reprs/P6bigint.c             | 1 +
 src/6model/reprs/P6int.c                | 1 +
 src/6model/reprs/P6num.c                | 1 +
 src/6model/reprs/P6opaque.c             | 1 +
 src/6model/reprs/P6str.c                | 1 +
 src/6model/reprs/ReentrantMutex.c       | 1 +
 src/6model/reprs/SCRef.c                | 1 +
 src/6model/reprs/Semaphore.c            | 1 +
 src/6model/reprs/Uninstantiable.c       | 1 +
 src/6model/reprs/VMArray.c              | 1 +
 46 files changed, 49 insertions(+)

diff --git a/src/6model/6model.h b/src/6model/6model.h
index 41aeae6f40..1cef00a72e 100644
--- a/src/6model/6model.h
+++ b/src/6model/6model.h
@@ -667,6 +667,10 @@ struct MVMREPROps {
     void (*spesh) (MVMThreadContext *tc, MVMSTable *st, MVMSpeshGraph *g,
         MVMSpeshBB *bb, MVMSpeshIns *ins);
 
+    /* Allows the REPR to produce specialized expr IR of various instructions,
+     * when we know the type involved. */
+    MVMint32 (*jit) (MVMThreadContext *tc, MVMSTable *st, MVMSpeshGraph *g, MVMSpeshIns *ins, MVMJitExprTree *tree, MVMint32 args[]);
+
     /* The representation's name. */
     const char *name;
 
diff --git a/src/6model/reprs/CArray.c b/src/6model/reprs/CArray.c
index 6ea5a8a8fa..0a1a988527 100644
--- a/src/6model/reprs/CArray.c
+++ b/src/6model/reprs/CArray.c
@@ -517,6 +517,7 @@ static const MVMREPROps CArray_this_repr = {
     gc_free_repr_data,
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "CArray", /* name */
     MVM_REPR_ID_MVMCArray,
     NULL, /* unmanaged_size */
diff --git a/src/6model/reprs/CPPStruct.c b/src/6model/reprs/CPPStruct.c
index b9bd26cfe2..18ae009ddc 100644
--- a/src/6model/reprs/CPPStruct.c
+++ b/src/6model/reprs/CPPStruct.c
@@ -878,6 +878,7 @@ static const MVMREPROps CPPStruct_this_repr = {
     gc_free_repr_data,
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "CPPStruct", /* name */
     MVM_REPR_ID_MVMCPPStruct,
     NULL, /* unmanaged_size */
diff --git a/src/6model/reprs/CPointer.c b/src/6model/reprs/CPointer.c
index 75c01c16cd..ac558ad9c9 100644
--- a/src/6model/reprs/CPointer.c
+++ b/src/6model/reprs/CPointer.c
@@ -151,6 +151,7 @@ static const MVMREPROps CPointer_this_repr = {
     NULL, /* gc_free_repr_data */
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "CPointer", /* name */
     MVM_REPR_ID_MVMCPointer,
     NULL, /* unmanaged_size */
diff --git a/src/6model/reprs/CStr.c b/src/6model/reprs/CStr.c
index 853a8624c5..e3737a9307 100644
--- a/src/6model/reprs/CStr.c
+++ b/src/6model/reprs/CStr.c
@@ -110,6 +110,7 @@ static const MVMREPROps CStr_this_repr = {
     NULL, /* gc_free_repr_data */
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "CStr", /* name */
     MVM_REPR_ID_MVMCStr,
     NULL, /* unmanaged_size */
diff --git a/src/6model/reprs/CStruct.c b/src/6model/reprs/CStruct.c
index c775ec69c2..1600d9ec80 100644
--- a/src/6model/reprs/CStruct.c
+++ b/src/6model/reprs/CStruct.c
@@ -1061,6 +1061,7 @@ static const MVMREPROps CStruct_this_repr = {
     gc_free_repr_data,
     compose,
     spesh, /* spesh */
+    NULL, /* jit */
     "CStruct", /* name */
     MVM_REPR_ID_MVMCStruct,
     unmanaged_size,
diff --git a/src/6model/reprs/CUnion.c b/src/6model/reprs/CUnion.c
index 434454c935..b61d9c9005 100644
--- a/src/6model/reprs/CUnion.c
+++ b/src/6model/reprs/CUnion.c
@@ -816,6 +816,7 @@ static const MVMREPROps CUnion_this_repr = {
     gc_free_repr_data,
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "CUnion", /* name */
     MVM_REPR_ID_MVMCUnion,
     NULL, /* unmanaged_size */
diff --git a/src/6model/reprs/ConcBlockingQueue.c b/src/6model/reprs/ConcBlockingQueue.c
index be2a4869dc..f875a9312f 100644
--- a/src/6model/reprs/ConcBlockingQueue.c
+++ b/src/6model/reprs/ConcBlockingQueue.c
@@ -316,6 +316,7 @@ static const MVMREPROps ConcBlockingQueue_this_repr = {
     NULL, /* gc_free_repr_data */
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "ConcBlockingQueue", /* name */
     MVM_REPR_ID_ConcBlockingQueue,
     unmanaged_size,
diff --git a/src/6model/reprs/ConditionVariable.c b/src/6model/reprs/ConditionVariable.c
index 3f5eb84b34..4df0ca9c32 100644
--- a/src/6model/reprs/ConditionVariable.c
+++ b/src/6model/reprs/ConditionVariable.c
@@ -93,6 +93,7 @@ static const MVMREPROps ConditionVariable_this_repr = {
     NULL, /* gc_free_repr_data */
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "ConditionVariable", /* name */
     MVM_REPR_ID_ConditionVariable,
     NULL, /* unmanaged_size */
diff --git a/src/6model/reprs/Decoder.c b/src/6model/reprs/Decoder.c
index 7ea1c1f8a7..4a7cb811f3 100644
--- a/src/6model/reprs/Decoder.c
+++ b/src/6model/reprs/Decoder.c
@@ -94,6 +94,7 @@ static const MVMREPROps Decoder_this_repr = {
     NULL, /* gc_free_repr_data */
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "Decoder", /* name */
     MVM_REPR_ID_Decoder,
     NULL, /* unmanaged_size */
diff --git a/src/6model/reprs/HashAttrStore.c b/src/6model/reprs/HashAttrStore.c
index 2287ca0024..a05d0b91c0 100644
--- a/src/6model/reprs/HashAttrStore.c
+++ b/src/6model/reprs/HashAttrStore.c
@@ -158,6 +158,7 @@ static const MVMREPROps HashAttrStore_this_repr = {
     NULL, /* gc_free_repr_data */
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "HashAttrStore", /* name */
     MVM_REPR_ID_HashAttrStore,
     NULL, /* unmanaged_size */
diff --git a/src/6model/reprs/KnowHOWAttributeREPR.c b/src/6model/reprs/KnowHOWAttributeREPR.c
index dfd2ad6104..aafe122998 100644
--- a/src/6model/reprs/KnowHOWAttributeREPR.c
+++ b/src/6model/reprs/KnowHOWAttributeREPR.c
@@ -99,6 +99,7 @@ static const MVMREPROps KnowHOWAttributeREPR_this_repr = {
     NULL, /* gc_free_repr_data */
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "KnowHOWAttributeREPR", /* name */
     MVM_REPR_ID_KnowHOWAttributeREPR,
     NULL, /* unmanaged_size */
diff --git a/src/6model/reprs/KnowHOWREPR.c b/src/6model/reprs/KnowHOWREPR.c
index 2a41933a01..64bbc529e0 100644
--- a/src/6model/reprs/KnowHOWREPR.c
+++ b/src/6model/reprs/KnowHOWREPR.c
@@ -121,6 +121,7 @@ static const MVMREPROps KnowHOWREPR_this_repr = {
     NULL, /* gc_free_repr_data */
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "KnowHOWREPR", /* name */
     MVM_REPR_ID_KnowHOWREPR,
     NULL, /* unmanaged_size */
diff --git a/src/6model/reprs/MVMAsyncTask.c b/src/6model/reprs/MVMAsyncTask.c
index 5fb1a066a1..56e8b2fd15 100644
--- a/src/6model/reprs/MVMAsyncTask.c
+++ b/src/6model/reprs/MVMAsyncTask.c
@@ -93,6 +93,7 @@ static const MVMREPROps MVMAsyncTask_this_repr = {
     NULL, /* gc_free_repr_data */
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "AsyncTask", /* name */
     MVM_REPR_ID_MVMAsyncTask,
     NULL, /* unmanaged_size */
diff --git a/src/6model/reprs/MVMCFunction.c b/src/6model/reprs/MVMCFunction.c
index 17e94d7e0d..cebf8d7000 100644
--- a/src/6model/reprs/MVMCFunction.c
+++ b/src/6model/reprs/MVMCFunction.c
@@ -83,6 +83,7 @@ static const MVMREPROps MVMCFunction_this_repr = {
     NULL, /* gc_free_repr_data */
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "MVMCFunction", /* name */
     MVM_REPR_ID_MVMCFunction,
     NULL, /* unmanaged_size */
diff --git a/src/6model/reprs/MVMCallCapture.c b/src/6model/reprs/MVMCallCapture.c
index 59912113a4..be84cde82b 100644
--- a/src/6model/reprs/MVMCallCapture.c
+++ b/src/6model/reprs/MVMCallCapture.c
@@ -117,6 +117,7 @@ static const MVMREPROps MVMCallCapture_this_repr = {
     NULL, /* gc_free_repr_data */
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "MVMCallCapture", /* name */
     MVM_REPR_ID_MVMCallCapture,
     NULL, /* unmanaged_size */
diff --git a/src/6model/reprs/MVMCode.c b/src/6model/reprs/MVMCode.c
index 2f51deade3..8cbb1ca63e 100644
--- a/src/6model/reprs/MVMCode.c
+++ b/src/6model/reprs/MVMCode.c
@@ -120,6 +120,7 @@ static const MVMREPROps MVMCode_this_repr = {
     NULL, /* gc_free_repr_data */
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "MVMCode", /* name */
     MVM_REPR_ID_MVMCode,
     NULL, /* unmanaged_size */
diff --git a/src/6model/reprs/MVMCompUnit.c b/src/6model/reprs/MVMCompUnit.c
index d0c5e8111b..010c606c46 100644
--- a/src/6model/reprs/MVMCompUnit.c
+++ b/src/6model/reprs/MVMCompUnit.c
@@ -241,6 +241,7 @@ static const MVMREPROps MVMCompUnit_this_repr = {
     NULL, /* gc_free_repr_data */
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "MVMCompUnit", /* name */
     MVM_REPR_ID_MVMCompUnit,
     unmanaged_size,
diff --git a/src/6model/reprs/MVMContext.c b/src/6model/reprs/MVMContext.c
index eff5985452..e811f3421c 100644
--- a/src/6model/reprs/MVMContext.c
+++ b/src/6model/reprs/MVMContext.c
@@ -259,6 +259,7 @@ static const MVMREPROps MVMContext_this_repr = {
     NULL, /* gc_free_repr_data */
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "MVMContext", /* name */
     MVM_REPR_ID_MVMContext,
     NULL, /* unmanaged_size */
diff --git a/src/6model/reprs/MVMContinuation.c b/src/6model/reprs/MVMContinuation.c
index b175943e57..6cff523fb0 100644
--- a/src/6model/reprs/MVMContinuation.c
+++ b/src/6model/reprs/MVMContinuation.c
@@ -106,6 +106,7 @@ static const MVMREPROps MVMContinuation_this_repr = {
     NULL, /* gc_free_repr_data */
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "MVMContinuation", /* name */
     MVM_REPR_ID_MVMContinuation,
     NULL, /* unmanaged_size */
diff --git a/src/6model/reprs/MVMDLLSym.c b/src/6model/reprs/MVMDLLSym.c
index 254dbb8699..569be56adc 100644
--- a/src/6model/reprs/MVMDLLSym.c
+++ b/src/6model/reprs/MVMDLLSym.c
@@ -83,6 +83,7 @@ static const MVMREPROps MVMDLLSym_this_repr = {
     NULL, /* gc_free_repr_data */
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "MVMDLLSym",
     MVM_REPR_ID_MVMDLLSym,
     NULL, /* unmanaged_size */
diff --git a/src/6model/reprs/MVMException.c b/src/6model/reprs/MVMException.c
index db28818b49..a34de44c4a 100644
--- a/src/6model/reprs/MVMException.c
+++ b/src/6model/reprs/MVMException.c
@@ -79,6 +79,7 @@ static const MVMREPROps MVMException_this_repr = {
     NULL, /* gc_free_repr_data */
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "VMException", /* name */
     MVM_REPR_ID_MVMException,
     NULL, /* unmanaged_size */
diff --git a/src/6model/reprs/MVMHash.c b/src/6model/reprs/MVMHash.c
index 802d43e3a1..1ec079d254 100644
--- a/src/6model/reprs/MVMHash.c
+++ b/src/6model/reprs/MVMHash.c
@@ -278,6 +278,7 @@ static const MVMREPROps MVMHash_this_repr = {
     NULL, /* gc_free_repr_data */
     compose,
     spesh,
+    NULL, /* jit */
     "VMHash", /* name */
     MVM_REPR_ID_MVMHash,
     unmanaged_size, /* unmanaged_size */
diff --git a/src/6model/reprs/MVMIter.c b/src/6model/reprs/MVMIter.c
index 0d073b5927..7f0ace4efc 100644
--- a/src/6model/reprs/MVMIter.c
+++ b/src/6model/reprs/MVMIter.c
@@ -192,6 +192,7 @@ static const MVMREPROps MVMIter_this_repr = {
     NULL, /* gc_free_repr_data */
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "VMIter", /* name */
     MVM_REPR_ID_MVMIter,
     NULL, /* unmanaged_size */
diff --git a/src/6model/reprs/MVMMultiCache.c b/src/6model/reprs/MVMMultiCache.c
index 2c685d5775..dc9d6bad6d 100644
--- a/src/6model/reprs/MVMMultiCache.c
+++ b/src/6model/reprs/MVMMultiCache.c
@@ -96,6 +96,7 @@ static const MVMREPROps MVMMultiCache_this_repr = {
     NULL, /* gc_free_repr_data */
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "MVMMultiCache", /* name */
     MVM_REPR_ID_MVMMultiCache,
     unmanaged_size, /* unmanaged_size */
diff --git a/src/6model/reprs/MVMNull.c b/src/6model/reprs/MVMNull.c
index 16ea280db1..7d3e726a2b 100644
--- a/src/6model/reprs/MVMNull.c
+++ b/src/6model/reprs/MVMNull.c
@@ -80,6 +80,7 @@ static const MVMREPROps MVMNull_this_repr = {
     NULL, /* gc_free_repr_data */
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "Null", /* name */
     MVM_REPR_ID_MVMNull,
     NULL, /* unmanaged_size */
diff --git a/src/6model/reprs/MVMOSHandle.c b/src/6model/reprs/MVMOSHandle.c
index 6780851ba5..92dd809a9a 100644
--- a/src/6model/reprs/MVMOSHandle.c
+++ b/src/6model/reprs/MVMOSHandle.c
@@ -104,6 +104,7 @@ static const MVMREPROps MVMOSHandle_this_repr = {
     NULL, /* gc_free_repr_data */
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "MVMOSHandle", /* name */
     MVM_REPR_ID_MVMOSHandle,
     NULL, /* unmanaged_size */
diff --git a/src/6model/reprs/MVMSpeshLog.c b/src/6model/reprs/MVMSpeshLog.c
index 169c6e8db1..0b8d4f02cf 100644
--- a/src/6model/reprs/MVMSpeshLog.c
+++ b/src/6model/reprs/MVMSpeshLog.c
@@ -180,6 +180,7 @@ static const MVMREPROps SpeshLog_this_repr = {
     NULL, /* gc_free_repr_data */
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "MVMSpeshLog", /* name */
     MVM_REPR_ID_MVMSpeshLog,
     unmanaged_size,
diff --git a/src/6model/reprs/MVMStaticFrame.c b/src/6model/reprs/MVMStaticFrame.c
index 7d1d069d08..44c1518325 100644
--- a/src/6model/reprs/MVMStaticFrame.c
+++ b/src/6model/reprs/MVMStaticFrame.c
@@ -316,6 +316,7 @@ static const MVMREPROps MVMStaticFrame_this_repr = {
     NULL, /* gc_free_repr_data */
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "MVMStaticFrame", /* name */
     MVM_REPR_ID_MVMStaticFrame,
     unmanaged_size, /* unmanaged_size */
diff --git a/src/6model/reprs/MVMStaticFrameSpesh.c b/src/6model/reprs/MVMStaticFrameSpesh.c
index 1e5e9bb975..ec35d7c8bf 100644
--- a/src/6model/reprs/MVMStaticFrameSpesh.c
+++ b/src/6model/reprs/MVMStaticFrameSpesh.c
@@ -172,6 +172,7 @@ static const MVMREPROps StaticFrameSpesh_this_repr = {
     NULL, /* gc_free_repr_data */
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "MVMStaticFrameSpesh", /* name */
     MVM_REPR_ID_MVMStaticFrameSpesh,
     unmanaged_size,
diff --git a/src/6model/reprs/MVMString.c b/src/6model/reprs/MVMString.c
index aa5d51a6ad..c020338f76 100644
--- a/src/6model/reprs/MVMString.c
+++ b/src/6model/reprs/MVMString.c
@@ -130,6 +130,7 @@ static const MVMREPROps MVMString_this_repr = {
     NULL, /* gc_free_repr_data */
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "MVMString", /* name */
     MVM_REPR_ID_MVMString,
     unmanaged_size,
diff --git a/src/6model/reprs/MVMThread.c b/src/6model/reprs/MVMThread.c
index 54ae500eec..16fa2c56ab 100644
--- a/src/6model/reprs/MVMThread.c
+++ b/src/6model/reprs/MVMThread.c
@@ -91,6 +91,7 @@ static const MVMREPROps MVMThread_this_repr = {
     NULL, /* gc_free_repr_data */
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "VMThread", /* name */
     MVM_REPR_ID_MVMThread,
     NULL, /* unmanaged_size */
diff --git a/src/6model/reprs/MultiDimArray.c b/src/6model/reprs/MultiDimArray.c
index 601edc40d2..3345b6a31e 100644
--- a/src/6model/reprs/MultiDimArray.c
+++ b/src/6model/reprs/MultiDimArray.c
@@ -832,6 +832,7 @@ static const MVMREPROps MultiDimArray_this_repr = {
     gc_free_repr_data,
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "MultiDimArray", /* name */
     MVM_REPR_ID_MultiDimArray,
     NULL, /* unmanaged_size */
diff --git a/src/6model/reprs/NFA.c b/src/6model/reprs/NFA.c
index 00cb4fe248..c30f15e4c5 100644
--- a/src/6model/reprs/NFA.c
+++ b/src/6model/reprs/NFA.c
@@ -345,6 +345,7 @@ static const MVMREPROps NFA_this_repr = {
     NULL, /* gc_free_repr_data */
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "NFA", /* name */
     MVM_REPR_ID_NFA,
     unmanaged_size,
diff --git a/src/6model/reprs/NativeCall.c b/src/6model/reprs/NativeCall.c
index 18f226011c..4207e17d43 100644
--- a/src/6model/reprs/NativeCall.c
+++ b/src/6model/reprs/NativeCall.c
@@ -135,6 +135,7 @@ static const MVMREPROps NativeCall_this_repr = {
     NULL, /* gc_free_repr_data */
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "NativeCall", /* name */
     MVM_REPR_ID_MVMNativeCall,
     NULL, /* unmanaged_size */
diff --git a/src/6model/reprs/NativeRef.c b/src/6model/reprs/NativeRef.c
index 89d6a05cc9..3a23cbec44 100644
--- a/src/6model/reprs/NativeRef.c
+++ b/src/6model/reprs/NativeRef.c
@@ -174,6 +174,7 @@ static const MVMREPROps NativeRef_this_repr = {
     gc_free_repr_data,
     compose,
     spesh, /* spesh */
+    NULL, /* jit */
     "NativeRef", /* name */
     MVM_REPR_ID_NativeRef,
     NULL, /* unmanaged_size */
diff --git a/src/6model/reprs/P6bigint.c b/src/6model/reprs/P6bigint.c
index 5fc9872ed5..21d116434d 100644
--- a/src/6model/reprs/P6bigint.c
+++ b/src/6model/reprs/P6bigint.c
@@ -288,6 +288,7 @@ static const MVMREPROps P6bigint_this_repr = {
     NULL, /* gc_free_repr_data */
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "P6bigint", /* name */
     MVM_REPR_ID_P6bigint,
     unmanaged_size, /* unmanaged_size */
diff --git a/src/6model/reprs/P6int.c b/src/6model/reprs/P6int.c
index e4579c55e4..e21d6d4f44 100644
--- a/src/6model/reprs/P6int.c
+++ b/src/6model/reprs/P6int.c
@@ -292,6 +292,7 @@ static const MVMREPROps P6int_this_repr = {
     gc_free_repr_data,
     compose,
     spesh,
+    NULL, /* jit */
     "P6int", /* name */
     MVM_REPR_ID_P6int,
     NULL, /* unmanaged_size */
diff --git a/src/6model/reprs/P6num.c b/src/6model/reprs/P6num.c
index cd3296610c..6bd2cb3691 100644
--- a/src/6model/reprs/P6num.c
+++ b/src/6model/reprs/P6num.c
@@ -237,6 +237,7 @@ static const MVMREPROps P6num_this_repr = {
     gc_free_repr_data,
     compose,
     spesh,
+    NULL, /* jit */
     "P6num", /* name */
     MVM_REPR_ID_P6num,
     NULL, /* unmanaged_size */
diff --git a/src/6model/reprs/P6opaque.c b/src/6model/reprs/P6opaque.c
index 8d6f8dc30b..e8b362b487 100644
--- a/src/6model/reprs/P6opaque.c
+++ b/src/6model/reprs/P6opaque.c
@@ -1903,6 +1903,7 @@ static const MVMREPROps P6opaque_this_repr = {
     gc_free_repr_data,
     compose,
     spesh,
+    NULL, /* jit */
     "P6opaque", /* name */
     MVM_REPR_ID_P6opaque,
     NULL, /* unmanaged_size */
diff --git a/src/6model/reprs/P6str.c b/src/6model/reprs/P6str.c
index ce4247c4df..903bed8bd1 100644
--- a/src/6model/reprs/P6str.c
+++ b/src/6model/reprs/P6str.c
@@ -157,6 +157,7 @@ static const MVMREPROps P6str_this_repr = {
     NULL, /* gc_free_repr_data */
     compose,
     spesh,
+    NULL, /* jit */
     "P6str", /* name */
     MVM_REPR_ID_P6str,
     NULL, /* unmanaged_size */
diff --git a/src/6model/reprs/ReentrantMutex.c b/src/6model/reprs/ReentrantMutex.c
index 16547a7960..eaddc0bb99 100644
--- a/src/6model/reprs/ReentrantMutex.c
+++ b/src/6model/reprs/ReentrantMutex.c
@@ -109,6 +109,7 @@ static const MVMREPROps ReentrantMutex_this_repr = {
     NULL, /* gc_free_repr_data */
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "ReentrantMutex", /* name */
     MVM_REPR_ID_ReentrantMutex,
     NULL, /* unmanaged_size */
diff --git a/src/6model/reprs/SCRef.c b/src/6model/reprs/SCRef.c
index 097f069973..2b0bdad0ab 100644
--- a/src/6model/reprs/SCRef.c
+++ b/src/6model/reprs/SCRef.c
@@ -251,6 +251,7 @@ static const MVMREPROps SCRef_this_repr = {
     NULL, /* gc_free_repr_data */
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "SCRef", /* name */
     MVM_REPR_ID_SCRef,
     unmanaged_size,
diff --git a/src/6model/reprs/Semaphore.c b/src/6model/reprs/Semaphore.c
index dce072d151..f7f0426845 100644
--- a/src/6model/reprs/Semaphore.c
+++ b/src/6model/reprs/Semaphore.c
@@ -108,6 +108,7 @@ static const MVMREPROps Semaphore_this_repr = {
     NULL, /* gc_free_repr_data */
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "Semaphore", /* name */
     MVM_REPR_ID_Semaphore,
     NULL, /* unmanaged_size */
diff --git a/src/6model/reprs/Uninstantiable.c b/src/6model/reprs/Uninstantiable.c
index da16c3ac46..9e00b4e745 100644
--- a/src/6model/reprs/Uninstantiable.c
+++ b/src/6model/reprs/Uninstantiable.c
@@ -82,6 +82,7 @@ static const MVMREPROps Uninstantiable_this_repr = {
     NULL, /* gc_free_repr_data */
     compose,
     NULL, /* spesh */
+    NULL, /* jit */
     "Uninstantiable", /* name */
     MVM_REPR_ID_Uninstantiable,
     NULL, /* unmanaged_size */
diff --git a/src/6model/reprs/VMArray.c b/src/6model/reprs/VMArray.c
index d5b883024c..5f5acf07a4 100644
--- a/src/6model/reprs/VMArray.c
+++ b/src/6model/reprs/VMArray.c
@@ -1464,6 +1464,7 @@ static const MVMREPROps VMArray_this_repr = {
     gc_free_repr_data,
     compose,
     spesh,
+    NULL, /* jit */
     "VMArray", /* name */
     MVM_REPR_ID_VMArray,
     unmanaged_size,