diff options
Diffstat (limited to 'lib/Analysis')
| -rw-r--r-- | lib/Analysis/Lint.cpp | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/lib/Analysis/Lint.cpp b/lib/Analysis/Lint.cpp index 25d4f95..8b38733 100644 --- a/lib/Analysis/Lint.cpp +++ b/lib/Analysis/Lint.cpp @@ -219,7 +219,15 @@ void Lint::visitCallSite(CallSite CS) { // TODO: Check sret attribute. } - // TODO: Check the "tail" keyword constraints. + if (CS.isCall() && cast<CallInst>(CS.getInstruction())->isTailCall()) + for (CallSite::arg_iterator AI = CS.arg_begin(), AE = CS.arg_end(); + AI != AE; ++AI) { + Value *Obj = (*AI)->getUnderlyingObject(); + Assert1(!isa<AllocaInst>(Obj) && !isa<VAArgInst>(Obj), + "Undefined behavior: Call with \"tail\" keyword references " + "alloca or va_arg", &I); + } + if (IntrinsicInst *II = dyn_cast<IntrinsicInst>(&I)) switch (II->getIntrinsicID()) { |