diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Sema/Sema.h | 5 | ||||
| -rw-r--r-- | lib/Sema/SemaAttr.cpp | 37 |
2 files changed, 41 insertions, 1 deletions
diff --git a/lib/Sema/Sema.h b/lib/Sema/Sema.h index 1b61800c2a..da3937ff83 100644 --- a/lib/Sema/Sema.h +++ b/lib/Sema/Sema.h @@ -4015,6 +4015,11 @@ public: MultiExprArg Args); + /// ActOnPragmaOptionsAlign - Called on well formed #pragma options align. + virtual void ActOnPragmaOptionsAlign(PragmaOptionsAlignKind Kind, + SourceLocation PragmaLoc, + SourceLocation KindLoc); + /// ActOnPragmaPack - Called on well formed #pragma pack(...). virtual void ActOnPragmaPack(PragmaPackKind Kind, IdentifierInfo *Name, diff --git a/lib/Sema/SemaAttr.cpp b/lib/Sema/SemaAttr.cpp index dc7815fa64..770bd218d1 100644 --- a/lib/Sema/SemaAttr.cpp +++ b/lib/Sema/SemaAttr.cpp @@ -18,7 +18,7 @@ using namespace clang; //===----------------------------------------------------------------------===// -// Pragma Packed +// Pragma 'pack' and 'options align' //===----------------------------------------------------------------------===// namespace { @@ -94,6 +94,41 @@ unsigned Sema::getPragmaPackAlignment() const { return 0; } +void Sema::ActOnPragmaOptionsAlign(PragmaOptionsAlignKind Kind, + SourceLocation PragmaLoc, + SourceLocation KindLoc) { + if (PackContext == 0) + PackContext = new PragmaPackStack(); + + PragmaPackStack *Context = static_cast<PragmaPackStack*>(PackContext); + + // Reset just pops the top of the stack. + if (Kind == Action::POAK_Reset) { + // Do the pop. + if (!Context->pop(0)) { + // 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_options_align_reset_failed) + << "stack empty"; + } + return; + } + + // We don't support #pragma options align=power. + switch (Kind) { + case POAK_Natural: + Context->push(0); + Context->setAlignment(0); + break; + + default: + Diag(PragmaLoc, diag::warn_pragma_options_align_unsupported_option) + << KindLoc; + break; + } +} + void Sema::ActOnPragmaPack(PragmaPackKind Kind, IdentifierInfo *Name, ExprTy *alignment, SourceLocation PragmaLoc, SourceLocation LParenLoc, SourceLocation RParenLoc) { |