diff options
Diffstat (limited to 'clang/AST/Expr.cpp')
| -rw-r--r-- | clang/AST/Expr.cpp | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/clang/AST/Expr.cpp b/clang/AST/Expr.cpp index 88ba6a6eff8..ed6255924b7 100644 --- a/clang/AST/Expr.cpp +++ b/clang/AST/Expr.cpp @@ -657,7 +657,10 @@ bool Expr::isIntegerConstantExpr(llvm::APSInt &Result, ASTContext &Ctx, Exp->getOperatorLoc()))); // Get information about the size or align. - if (Exp->getOpcode() == UnaryOperator::AlignOf) { + if (Exp->getSubExpr()->getType()->isFunctionType()) { + // GCC extension: sizeof(function) = 1. + Result = Exp->getOpcode() == UnaryOperator::AlignOf ? 4 : 1; + } else if (Exp->getOpcode() == UnaryOperator::AlignOf) { Result = Ctx.getTypeAlign(Exp->getSubExpr()->getType(), Exp->getOperatorLoc()); } else { @@ -700,7 +703,10 @@ bool Expr::isIntegerConstantExpr(llvm::APSInt &Result, ASTContext &Ctx, static_cast<uint32_t>(Ctx.getTypeSize(getType(), Exp->getOperatorLoc()))); // Get information about the size or align. - if (Exp->isSizeOf()) { + if (Exp->getArgumentType()->isFunctionType()) { + // GCC extension: sizeof(function) = 1. + Result = Exp->isSizeOf() ? 1 : 4; + } else if (Exp->isSizeOf()) { unsigned CharSize = Ctx.Target.getCharWidth(Ctx.getFullLoc(Exp->getOperatorLoc())); |
