From 92432a8db1266f7932bce13a7e6354b0993838d3 Mon Sep 17 00:00:00 2001 From: Duncan Sands Date: Tue, 8 Apr 2008 07:23:58 +0000 Subject: [PATCH] Convenience method for setting the nounwind attribute for a function. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49373 91177308-0d34-0410-b5e6-96231b3b80d8 --- include/llvm/Function.h | 1 + lib/VMCore/Function.cpp | 9 +++++++++ 2 files changed, 10 insertions(+) diff --git a/include/llvm/Function.h b/include/llvm/Function.h index ae51fe2f00b..28c301fe2f6 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 6571f10be5d..de011c07bf6 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 -- 2.34.1