From 5a5ac124e1efaf208671f01c46edb15f29ed2a0b Mon Sep 17 00:00:00 2001 From: Dimitry Andric Date: Wed, 27 May 2015 18:44:32 +0000 Subject: Vendor import of llvm trunk r238337: https://llvm.org/svn/llvm-project/llvm/trunk@238337 --- include/llvm/Analysis/LibCallSemantics.h | 47 ++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) (limited to 'include/llvm/Analysis/LibCallSemantics.h') diff --git a/include/llvm/Analysis/LibCallSemantics.h b/include/llvm/Analysis/LibCallSemantics.h index 8bd747f03970..34831b2849dd 100644 --- a/include/llvm/Analysis/LibCallSemantics.h +++ b/include/llvm/Analysis/LibCallSemantics.h @@ -18,6 +18,7 @@ #include "llvm/Analysis/AliasAnalysis.h" namespace llvm { +class InvokeInst; /// LibCallLocationInfo - This struct describes a set of memory locations that /// are accessed by libcalls. Identification of a location is doing with a @@ -162,6 +163,52 @@ namespace llvm { virtual const LibCallFunctionInfo *getFunctionInfoArray() const = 0; }; + enum class EHPersonality { + Unknown, + GNU_Ada, + GNU_C, + GNU_CXX, + GNU_ObjC, + MSVC_X86SEH, + MSVC_Win64SEH, + MSVC_CXX, + }; + + /// \brief See if the given exception handling personality function is one + /// that we understand. If so, return a description of it; otherwise return + /// Unknown. + EHPersonality classifyEHPersonality(const Value *Pers); + + /// \brief Returns true if this personality function catches asynchronous + /// exceptions. + inline bool isAsynchronousEHPersonality(EHPersonality Pers) { + // The two SEH personality functions can catch asynch exceptions. We assume + // unknown personalities don't catch asynch exceptions. + switch (Pers) { + case EHPersonality::MSVC_X86SEH: + case EHPersonality::MSVC_Win64SEH: + return true; + default: return false; + } + llvm_unreachable("invalid enum"); + } + + /// \brief Returns true if this is an MSVC personality function. + inline bool isMSVCEHPersonality(EHPersonality Pers) { + // The two SEH personality functions can catch asynch exceptions. We assume + // unknown personalities don't catch asynch exceptions. + switch (Pers) { + case EHPersonality::MSVC_CXX: + case EHPersonality::MSVC_X86SEH: + case EHPersonality::MSVC_Win64SEH: + return true; + default: return false; + } + llvm_unreachable("invalid enum"); + } + + bool canSimplifyInvokeNoUnwind(const InvokeInst *II); + } // end namespace llvm #endif -- cgit v1.2.3