diff options
| -rw-r--r-- | include/llvm/Function.h | 1 | ||||
| -rw-r--r-- | lib/VMCore/Function.cpp | 9 |
2 files changed, 10 insertions, 0 deletions
diff --git a/include/llvm/Function.h b/include/llvm/Function.h index ae51fe2f00..28c301fe2f 100644 --- a/include/llvm/Function.h +++ b/include/llvm/Function.h @@ -178,6 +178,7 @@ public: /// @brief Determine if the function cannot return. bool doesNotReturn() const { return paramHasAttr(0, ParamAttr::NoReturn); } + void setDoesNotThrow(bool doesNotThrow = true); /// @brief Determine if the function cannot unwind. bool doesNotThrow() const { diff --git a/lib/VMCore/Function.cpp b/lib/VMCore/Function.cpp index 6571f10be5..de011c07bf 100644 --- a/lib/VMCore/Function.cpp +++ b/lib/VMCore/Function.cpp @@ -219,6 +219,15 @@ void Function::dropAllReferences() { BasicBlocks.clear(); // Delete all basic blocks... } +void Function::setDoesNotThrow(bool doesNotThrow) { + PAListPtr PAL = getParamAttrs(); + if (doesNotThrow) + PAL = PAL.addAttr(0, ParamAttr::NoUnwind); + else + PAL = PAL.removeAttr(0, ParamAttr::NoUnwind); + setParamAttrs(PAL); +} + // Maintain the collector name for each function in an on-the-side table. This // saves allocating an additional word in Function for programs which do not use // GC (i.e., most programs) at the cost of increased overhead for clients which |