summaryrefslogtreecommitdiffstats
path: root/llvm/lib/Analysis/LibCallSemantics.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'llvm/lib/Analysis/LibCallSemantics.cpp')
-rw-r--r--llvm/lib/Analysis/LibCallSemantics.cpp47
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);
-}
OpenPOWER on IntegriCloud