Rename CORINFO_FLG_CONTAINS_STACK_PTR to CORINFO_FLG_BYREF_LIKE (#61907)

The current name is causing confusion

Author: jkotas

src/coreclr/ToolBox/superpmi/superpmi-shared/spmidumphelper.cpp

@@ -187,7 +187,7 @@ std::string SpmiDumpHelper::DumpCorInfoFlag(CorInfoFlag flags)
     AddFlag(CORINFO_FLG_CUSTOMLAYOUT);
     AddFlag(CORINFO_FLG_CONTAINS_GC_PTR);
     AddFlag(CORINFO_FLG_DELEGATE);
-    AddFlag(CORINFO_FLG_CONTAINS_STACK_PTR);
+    AddFlag(CORINFO_FLG_BYREF_LIKE);
     AddFlag(CORINFO_FLG_VARIANCE);
     AddFlag(CORINFO_FLG_BEFOREFIELDINIT);
     AddFlag(CORINFO_FLG_GENERIC_TYPE_VARIABLE);

src/coreclr/inc/corinfo.h

@@ -811,7 +811,7 @@ enum CorInfoFlag
     CORINFO_FLG_CONTAINS_GC_PTR       = 0x01000000, // does the class contain a gc ptr ?
     CORINFO_FLG_DELEGATE              = 0x02000000, // is this a subclass of delegate or multicast delegate ?
     // CORINFO_FLG_UNUSED             = 0x04000000,
-    CORINFO_FLG_CONTAINS_STACK_PTR    = 0x08000000, // This class has a stack pointer inside it
+    CORINFO_FLG_BYREF_LIKE            = 0x08000000, // it is byref-like value type
     CORINFO_FLG_VARIANCE              = 0x10000000, // MethodTable::HasVariance (sealed does *not* mean uncast-able)
     CORINFO_FLG_BEFOREFIELDINIT       = 0x20000000, // Additional flexibility for when to run .cctor (see code:#ClassConstructionFlags)
     CORINFO_FLG_GENERIC_TYPE_VARIABLE = 0x40000000, // This is really a handle for a variable type

src/coreclr/jit/importer.cpp

@@ -1733,7 +1733,7 @@ var_types Compiler::impNormStructType(CORINFO_CLASS_HANDLE structHnd, CorInfoTyp
         const DWORD structFlags = info.compCompHnd->getClassAttribs(structHnd);
 
         // Don't bother if the struct contains GC references of byrefs, it can't be a SIMD type.
-        if ((structFlags & (CORINFO_FLG_CONTAINS_GC_PTR | CORINFO_FLG_CONTAINS_STACK_PTR)) == 0)
+        if ((structFlags & (CORINFO_FLG_CONTAINS_GC_PTR | CORINFO_FLG_BYREF_LIKE)) == 0)
         {
             unsigned originalSize = info.compCompHnd->getClassSize(structHnd);
 
@@ -5876,7 +5876,7 @@ bool Compiler::verIsByRefLike(const typeInfo& ti)
     {
         return false;
     }
-    return info.compCompHnd->getClassAttribs(ti.GetClassHandleForValueClass()) & CORINFO_FLG_CONTAINS_STACK_PTR;
+    return info.compCompHnd->getClassAttribs(ti.GetClassHandleForValueClass()) & CORINFO_FLG_BYREF_LIKE;
 }
 
 bool Compiler::verIsSafeToReturnByRef(const typeInfo& ti)
@@ -5897,7 +5897,7 @@ bool Compiler::verIsBoxable(const typeInfo& ti)
             || ti.IsUnboxedGenericTypeVar() ||
             (ti.IsType(TI_STRUCT) &&
              // exclude byreflike structs
-             !(info.compCompHnd->getClassAttribs(ti.GetClassHandleForValueClass()) & CORINFO_FLG_CONTAINS_STACK_PTR)));
+             !(info.compCompHnd->getClassAttribs(ti.GetClassHandleForValueClass()) & CORINFO_FLG_BYREF_LIKE)));
 }
 
 // Is it a boxed value type?
@@ -14698,7 +14698,7 @@ void Compiler::impImportBlockCode(BasicBlock* block)
                         info.compCompHnd->getChildType(resolvedToken.hClass, &elemTypeHnd);
                         assert(!(elemTypeHnd == nullptr && corType == CORINFO_TYPE_VALUECLASS));
                         Verify(elemTypeHnd == nullptr ||
-                                   !(info.compCompHnd->getClassAttribs(elemTypeHnd) & CORINFO_FLG_CONTAINS_STACK_PTR),
+                                   !(info.compCompHnd->getClassAttribs(elemTypeHnd) & CORINFO_FLG_BYREF_LIKE),
                                "newarr of byref-like objects");
                         verVerifyCall(opcode, &resolvedToken, nullptr, ((prefixFlags & PREFIX_TAILCALL_EXPLICIT) != 0),
                                       ((prefixFlags & PREFIX_READONLY) != 0), delegateCreateStart, codeAddr - 1,
@@ -15816,7 +15816,7 @@ void Compiler::impImportBlockCode(BasicBlock* block)
                     CORINFO_CLASS_HANDLE elemTypeHnd;
                     info.compCompHnd->getChildType(resolvedToken.hClass, &elemTypeHnd);
                     Verify(elemTypeHnd == nullptr ||
-                               !(info.compCompHnd->getClassAttribs(elemTypeHnd) & CORINFO_FLG_CONTAINS_STACK_PTR),
+                               !(info.compCompHnd->getClassAttribs(elemTypeHnd) & CORINFO_FLG_BYREF_LIKE),
                            "array of byref-like type");
                 }
 

src/coreclr/jit/layout.cpp

@@ -370,7 +370,7 @@ void ClassLayout::InitializeGCPtrs(Compiler* compiler)
         unsigned gcPtrCount = compiler->info.compCompHnd->getClassGClayout(m_classHandle, gcPtrs);
 
         assert((gcPtrCount == 0) || ((compiler->info.compCompHnd->getClassAttribs(m_classHandle) &
-                                      (CORINFO_FLG_CONTAINS_GC_PTR | CORINFO_FLG_CONTAINS_STACK_PTR)) != 0));
+                                      (CORINFO_FLG_CONTAINS_GC_PTR | CORINFO_FLG_BYREF_LIKE)) != 0));
 
         // Since class size is unsigned there's no way we could have more than 2^30 slots
         // so it should be safe to fit this into a 30 bits bit field.

src/coreclr/jit/lclvars.cpp

@@ -1835,9 +1835,9 @@ bool Compiler::StructPromotionHelper::CanPromoteStructType(CORINFO_CLASS_HANDLE
     }
 
     // If we saw any GC pointer or by-ref fields above then CORINFO_FLG_CONTAINS_GC_PTR or
-    // CORINFO_FLG_CONTAINS_STACK_PTR has to be set!
+    // CORINFO_FLG_BYREF_LIKE has to be set!
     noway_assert((containsGCpointers == false) ||
-                 ((typeFlags & (CORINFO_FLG_CONTAINS_GC_PTR | CORINFO_FLG_CONTAINS_STACK_PTR)) != 0));
+                 ((typeFlags & (CORINFO_FLG_CONTAINS_GC_PTR | CORINFO_FLG_BYREF_LIKE)) != 0));
 
     // If we have "Custom Layout" then we might have an explicit Size attribute
     // Managed C++ uses this for its structs, such C++ types will not contain GC pointers.

src/coreclr/tools/Common/JitInterface/CorInfoImpl.cs

@@ -1931,7 +1931,7 @@ private uint getClassAttribsInternal(TypeDesc type)
                 result |= CorInfoFlag.CORINFO_FLG_VALUECLASS;
 
                 if (metadataType.IsByRefLike)
-                    result |= CorInfoFlag.CORINFO_FLG_CONTAINS_STACK_PTR;
+                    result |= CorInfoFlag.CORINFO_FLG_BYREF_LIKE;
 
                 // The CLR has more complicated rules around CUSTOMLAYOUT, but this will do.
                 if (metadataType.IsExplicitLayout || (metadataType.IsSequentialLayout && metadataType.GetClassLayout().Size != 0) || metadataType.IsWellKnownType(WellKnownType.TypedReference))

src/coreclr/tools/Common/JitInterface/CorInfoTypes.cs

@@ -618,7 +618,7 @@ public enum CorInfoFlag : uint
         CORINFO_FLG_CONTAINS_GC_PTR = 0x01000000, // does the class contain a gc ptr ?
         CORINFO_FLG_DELEGATE = 0x02000000, // is this a subclass of delegate or multicast delegate ?
         // CORINFO_FLG_UNUSED = 0x04000000,
-        CORINFO_FLG_CONTAINS_STACK_PTR = 0x08000000, // This class has a stack pointer inside it
+        CORINFO_FLG_BYREF_LIKE = 0x08000000, // it is byref-like value type
         CORINFO_FLG_VARIANCE = 0x10000000, // MethodTable::HasVariance (sealed does *not* mean uncast-able)
         CORINFO_FLG_BEFOREFIELDINIT = 0x20000000, // Additional flexibility for when to run .cctor (see code:#ClassConstructionFlags)
         CORINFO_FLG_GENERIC_TYPE_VARIABLE = 0x40000000, // This is really a handle for a variable type

src/coreclr/vm/jitinterface.cpp

@@ -3689,7 +3689,7 @@ uint32_t CEEInfo::getClassAttribsInternal (CORINFO_CLASS_HANDLE clsHnd)
             ret |= CORINFO_FLG_VALUECLASS;
 
             if (pMT->IsByRefLike())
-                ret |= CORINFO_FLG_CONTAINS_STACK_PTR;
+                ret |= CORINFO_FLG_BYREF_LIKE;
 
             if ((pClass->IsNotTightlyPacked() && (!pClass->IsManagedSequential() || pClass->HasExplicitSize())) ||
                 pMT == g_TypedReferenceMT ||