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Diffstat (limited to 'llvm/lib/Analysis/LibCallSemantics.cpp')
-rw-r--r-- | llvm/lib/Analysis/LibCallSemantics.cpp | 47 |
1 files changed, 0 insertions, 47 deletions
diff --git a/llvm/lib/Analysis/LibCallSemantics.cpp b/llvm/lib/Analysis/LibCallSemantics.cpp deleted file mode 100644 index b91ff20aee2..00000000000 --- a/llvm/lib/Analysis/LibCallSemantics.cpp +++ /dev/null @@ -1,47 +0,0 @@ -//===- LibCallSemantics.cpp - Describe library semantics ------------------===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// This file implements interfaces that can be used to describe language -// specific runtime library interfaces (e.g. libc, libm, etc) to LLVM -// optimizers. -// -//===----------------------------------------------------------------------===// - -#include "llvm/Analysis/LibCallSemantics.h" -#include "llvm/ADT/StringSwitch.h" -#include "llvm/IR/Function.h" -using namespace llvm; - -/// See if the given exception handling personality function is one that we -/// understand. If so, return a description of it; otherwise return Unknown. -EHPersonality llvm::classifyEHPersonality(const Value *Pers) { - const Function *F = - Pers ? dyn_cast<Function>(Pers->stripPointerCasts()) : nullptr; - if (!F) - return EHPersonality::Unknown; - return StringSwitch<EHPersonality>(F->getName()) - .Case("__gnat_eh_personality", EHPersonality::GNU_Ada) - .Case("__gxx_personality_v0", EHPersonality::GNU_CXX) - .Case("__gcc_personality_v0", EHPersonality::GNU_C) - .Case("__objc_personality_v0", EHPersonality::GNU_ObjC) - .Case("_except_handler3", EHPersonality::MSVC_X86SEH) - .Case("_except_handler4", EHPersonality::MSVC_X86SEH) - .Case("__C_specific_handler", EHPersonality::MSVC_Win64SEH) - .Case("__CxxFrameHandler3", EHPersonality::MSVC_CXX) - .Case("ProcessCLRException", EHPersonality::CoreCLR) - .Default(EHPersonality::Unknown); -} - -bool llvm::canSimplifyInvokeNoUnwind(const Function *F) { - EHPersonality Personality = classifyEHPersonality(F->getPersonalityFn()); - // We can't simplify any invokes to nounwind functions if the personality - // function wants to catch asynch exceptions. The nounwind attribute only - // implies that the function does not throw synchronous exceptions. - return !isAsynchronousEHPersonality(Personality); -} |