move attribute(packed) sema support out of SemaDecl into a new SemaAttr.cpp file.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64711 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 0 insertions, 94 deletions

diff --git a/lib/Sema/SemaDecl.cpp b/lib/Sema/SemaDecl.cpp
index 4f8b245ef3..70990a87a3 100644
--- a/lib/Sema/SemaDecl.cpp
+++ b/lib/Sema/SemaDecl.cpp
@@ -3984,97 +3984,3 @@ Sema::DeclTy *Sema::ActOnFileScopeAsmDecl(SourceLocation Loc,
   return FileScopeAsmDecl::Create(Context, CurContext, Loc, AsmString);
 }
 
-
-void Sema::ActOnPragmaPack(PragmaPackKind Kind, IdentifierInfo *Name, 
-                           ExprTy *alignment, SourceLocation PragmaLoc, 
-                           SourceLocation LParenLoc, SourceLocation RParenLoc) {
-  Expr *Alignment = static_cast<Expr *>(alignment);
-
-  // If specified then alignment must be a "small" power of two.
-  unsigned AlignmentVal = 0;
-  if (Alignment) {
-    llvm::APSInt Val;
-    if (!Alignment->isIntegerConstantExpr(Val, Context) ||
-        !Val.isPowerOf2() ||
-        Val.getZExtValue() > 16) {
-      Diag(PragmaLoc, diag::warn_pragma_pack_invalid_alignment);
-      Alignment->Destroy(Context);
-      return; // Ignore
-    }
-
-    AlignmentVal = (unsigned) Val.getZExtValue();
-  }
-
-  switch (Kind) {
-  case Action::PPK_Default: // pack([n])
-    PackContext.setAlignment(AlignmentVal);
-    break;
-
-  case Action::PPK_Show: // pack(show)
-    // Show the current alignment, making sure to show the right value
-    // for the default.
-    AlignmentVal = PackContext.getAlignment();
-    // FIXME: This should come from the target.
-    if (AlignmentVal == 0)
-      AlignmentVal = 8;
-    Diag(PragmaLoc, diag::warn_pragma_pack_show) << AlignmentVal;
-    break;
-
-  case Action::PPK_Push: // pack(push [, id] [, [n])
-    PackContext.push(Name);
-    // Set the new alignment if specified.
-    if (Alignment)
-      PackContext.setAlignment(AlignmentVal);    
-    break;
-
-  case Action::PPK_Pop: // pack(pop [, id] [,  n])
-    // MSDN, C/C++ Preprocessor Reference > Pragma Directives > pack:
-    // "#pragma pack(pop, identifier, n) is undefined"
-    if (Alignment && Name)
-      Diag(PragmaLoc, diag::warn_pragma_pack_pop_identifer_and_alignment);    
-    
-    // Do the pop.
-    if (!PackContext.pop(Name)) {
-      // If a name was specified then failure indicates the name
-      // wasn't found. Otherwise failure indicates the stack was
-      // empty.
-      Diag(PragmaLoc, diag::warn_pragma_pack_pop_failed)
-        << (Name ? "no record matching name" : "stack empty");
-
-      // FIXME: Warn about popping named records as MSVC does.
-    } else {
-      // Pop succeeded, set the new alignment if specified.
-      if (Alignment)
-        PackContext.setAlignment(AlignmentVal);
-    }
-    break;
-
-  default:
-    assert(0 && "Invalid #pragma pack kind.");
-  }
-}
-
-bool PragmaPackStack::pop(IdentifierInfo *Name) {
-  if (Stack.empty())
-    return false;
-
-  // If name is empty just pop top.
-  if (!Name) {
-    Alignment = Stack.back().first;
-    Stack.pop_back();
-    return true;
-  } 
-
-  // Otherwise, find the named record.
-  for (unsigned i = Stack.size(); i != 0; ) {
-    --i;
-    if (Stack[i].second == Name) {
-      // Found it, pop up to and including this record.
-      Alignment = Stack[i].first;
-      Stack.erase(Stack.begin() + i, Stack.end());
-      return true;
-    }
-  }
-
-  return false;
-}