Remove relocations for vtable chunks (#17147)

* Separate sections READONLY_VCHUNKS and READONLY_DICTIONARY

* Remove relocations for second-level indirection of Vtable in case FEATURE_NGEN_RELOCS_OPTIMIZATIONS is enabled.

Introduce FEATURE_NGEN_RELOCS_OPTIMIZATIONS, under which NGEN specific relocations optimizations are enabled

* Replace push/pop of R11 in stubs with
  - str/ldr of R4 in space reserved in epilog for non-tail calls
  - usage of R4 with hybrid-tail calls (same as for EmitShuffleThunk)

* Replace push/pop of R11 for function epilog with usage of LR as helper register right before its restore from stack

1 files changed, 4 insertions, 3 deletions

diff --git a/src/jit/importer.cpp b/src/jit/importer.cpp
index 182a049820..80b1e875dd 100644
--- a/src/jit/importer.cpp
+++ b/src/jit/importer.cpp
@@ -1794,7 +1794,7 @@ GenTree* Compiler::impLookupToTree(CORINFO_RESOLVED_TOKEN* pResolvedToken,
 
         CORINFO_GENERIC_HANDLE handle       = nullptr;
         void*                  pIndirection = nullptr;
-        assert(pLookup->constLookup.accessType != IAT_PPVALUE);
+        assert(pLookup->constLookup.accessType != IAT_PPVALUE && pLookup->constLookup.accessType != IAT_RELPVALUE);
 
         if (pLookup->constLookup.accessType == IAT_VALUE)
         {
@@ -1829,7 +1829,7 @@ GenTree* Compiler::impReadyToRunLookupToTree(CORINFO_CONST_LOOKUP* pLookup,
 {
     CORINFO_GENERIC_HANDLE handle       = nullptr;
     void*                  pIndirection = nullptr;
-    assert(pLookup->accessType != IAT_PPVALUE);
+    assert(pLookup->accessType != IAT_PPVALUE && pLookup->accessType != IAT_RELPVALUE);
 
     if (pLookup->accessType == IAT_VALUE)
     {
@@ -7299,7 +7299,8 @@ var_types Compiler::impImportCall(OPCODE                  opcode,
                     call = gtNewCallNode(CT_USER_FUNC, callInfo->hMethod, callRetTyp, nullptr, ilOffset);
                     call->gtCall.gtStubCallStubAddr = callInfo->stubLookup.constLookup.addr;
                     call->gtFlags |= GTF_CALL_VIRT_STUB;
-                    assert(callInfo->stubLookup.constLookup.accessType != IAT_PPVALUE);
+                    assert(callInfo->stubLookup.constLookup.accessType != IAT_PPVALUE &&
+                           callInfo->stubLookup.constLookup.accessType != IAT_RELPVALUE);
                     if (callInfo->stubLookup.constLookup.accessType == IAT_PVALUE)
                     {
                         call->gtCall.gtCallMoreFlags |= GTF_CALL_M_VIRTSTUB_REL_INDIRECT;