forked from OSchip/llvm-project
CodeGen: Move EHPersonality from CGException.h into the cpp file, it has no other users.
While at it make it value-initializable to get rid of static ctors. llvm-svn: 150070
This commit is contained in:
Benjamin Kramer
parent
42cdb7e640
commit
793bd55f5a
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@ -11,17 +11,13 @@
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//
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//===----------------------------------------------------------------------===//
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#include "clang/AST/StmtCXX.h"
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#include "llvm/Intrinsics.h"
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#include "llvm/IntrinsicInst.h"
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#include "llvm/Support/CallSite.h"
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#include "CGObjCRuntime.h"
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#include "CodeGenFunction.h"
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#include "CGException.h"
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#include "CGCleanup.h"
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#include "CGObjCRuntime.h"
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#include "TargetInfo.h"
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#include "clang/AST/StmtCXX.h"
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#include "llvm/Intrinsics.h"
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#include "llvm/Support/CallSite.h"
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using namespace clang;
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using namespace CodeGen;
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@ -145,14 +141,37 @@ static llvm::Constant *getCatchallRethrowFn(CodeGenFunction &CGF,
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return CGF.CGM.CreateRuntimeFunction(FTy, Name);
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}
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const EHPersonality EHPersonality::GNU_C("__gcc_personality_v0");
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const EHPersonality EHPersonality::GNU_C_SJLJ("__gcc_personality_sj0");
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const EHPersonality EHPersonality::NeXT_ObjC("__objc_personality_v0");
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const EHPersonality EHPersonality::GNU_CPlusPlus("__gxx_personality_v0");
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const EHPersonality EHPersonality::GNU_CPlusPlus_SJLJ("__gxx_personality_sj0");
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const EHPersonality EHPersonality::GNU_ObjC("__gnu_objc_personality_v0",
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"objc_exception_throw");
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const EHPersonality EHPersonality::GNU_ObjCXX("__gnustep_objcxx_personality_v0");
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namespace {
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/// The exceptions personality for a function.
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struct EHPersonality {
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const char *PersonalityFn;
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// If this is non-null, this personality requires a non-standard
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// function for rethrowing an exception after a catchall cleanup.
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// This function must have prototype void(void*).
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const char *CatchallRethrowFn;
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static const EHPersonality &get(const LangOptions &Lang);
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static const EHPersonality GNU_C;
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static const EHPersonality GNU_C_SJLJ;
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static const EHPersonality GNU_ObjC;
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static const EHPersonality GNU_ObjCXX;
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static const EHPersonality NeXT_ObjC;
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static const EHPersonality GNU_CPlusPlus;
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static const EHPersonality GNU_CPlusPlus_SJLJ;
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};
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}
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const EHPersonality EHPersonality::GNU_C = { "__gcc_personality_v0", 0 };
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const EHPersonality EHPersonality::GNU_C_SJLJ = { "__gcc_personality_sj0", 0 };
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const EHPersonality EHPersonality::NeXT_ObjC = { "__objc_personality_v0", 0 };
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const EHPersonality EHPersonality::GNU_CPlusPlus = { "__gxx_personality_v0", 0};
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const EHPersonality
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EHPersonality::GNU_CPlusPlus_SJLJ = { "__gxx_personality_sj0", 0 };
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const EHPersonality
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EHPersonality::GNU_ObjC = {"__gnu_objc_personality_v0", "objc_exception_throw"};
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const EHPersonality
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EHPersonality::GNU_ObjCXX = { "__gnustep_objcxx_personality_v0", 0 };
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static const EHPersonality &getCPersonality(const LangOptions &L) {
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if (L.SjLjExceptions)
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@ -212,7 +231,7 @@ static llvm::Constant *getPersonalityFn(CodeGenModule &CGM,
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const EHPersonality &Personality) {
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llvm::Constant *Fn =
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CGM.CreateRuntimeFunction(llvm::FunctionType::get(CGM.Int32Ty, true),
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Personality.getPersonalityFnName());
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Personality.PersonalityFn);
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return Fn;
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}
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@ -286,12 +305,13 @@ void CodeGenModule::SimplifyPersonality() {
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const EHPersonality &ObjCXX = EHPersonality::get(Features);
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const EHPersonality &CXX = getCXXPersonality(Features);
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if (&ObjCXX == &CXX ||
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ObjCXX.getPersonalityFnName() == CXX.getPersonalityFnName())
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if (&ObjCXX == &CXX)
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return;
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llvm::Function *Fn =
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getModule().getFunction(ObjCXX.getPersonalityFnName());
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assert(std::strcmp(ObjCXX.PersonalityFn, CXX.PersonalityFn) != 0 &&
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"Different EHPersonalities using the same personality function.");
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llvm::Function *Fn = getModule().getFunction(ObjCXX.PersonalityFn);
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// Nothing to do if it's unused.
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if (!Fn || Fn->use_empty()) return;
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@ -1529,8 +1549,8 @@ llvm::BasicBlock *CodeGenFunction::getEHResumeBlock() {
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// This can always be a call because we necessarily didn't find
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// anything on the EH stack which needs our help.
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StringRef RethrowName = Personality.getCatchallRethrowFnName();
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if (!RethrowName.empty()) {
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const char *RethrowName = Personality.CatchallRethrowFn;
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if (RethrowName != 0) {
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Builder.CreateCall(getCatchallRethrowFn(*this, RethrowName),
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getExceptionFromSlot())
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->setDoesNotReturn();
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@ -1,56 +0,0 @@
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//===-- CGException.h - Classes for exceptions IR generation ----*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// These classes support the generation of LLVM IR for exceptions in
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// C++ and Objective C.
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//
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//===----------------------------------------------------------------------===//
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#ifndef CLANG_CODEGEN_CGEXCEPTION_H
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#define CLANG_CODEGEN_CGEXCEPTION_H
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#include "llvm/ADT/StringRef.h"
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namespace clang {
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class LangOptions;
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namespace CodeGen {
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/// The exceptions personality for a function. When
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class EHPersonality {
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StringRef PersonalityFn;
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// If this is non-null, this personality requires a non-standard
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// function for rethrowing an exception after a catchall cleanup.
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// This function must have prototype void(void*).
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StringRef CatchallRethrowFn;
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EHPersonality(StringRef PersonalityFn,
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StringRef CatchallRethrowFn = StringRef())
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: PersonalityFn(PersonalityFn),
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CatchallRethrowFn(CatchallRethrowFn) {}
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public:
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static const EHPersonality &get(const LangOptions &Lang);
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static const EHPersonality GNU_C;
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static const EHPersonality GNU_C_SJLJ;
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static const EHPersonality GNU_ObjC;
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static const EHPersonality GNU_ObjCXX;
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static const EHPersonality NeXT_ObjC;
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static const EHPersonality GNU_CPlusPlus;
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static const EHPersonality GNU_CPlusPlus_SJLJ;
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StringRef getPersonalityFnName() const { return PersonalityFn; }
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StringRef getCatchallRethrowFnName() const { return CatchallRethrowFn; }
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};
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}
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}
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#endif
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@ -16,7 +16,6 @@
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#include "CGCUDARuntime.h"
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#include "CGCXXABI.h"
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#include "CGDebugInfo.h"
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#include "CGException.h"
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#include "clang/Basic/TargetInfo.h"
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#include "clang/AST/ASTContext.h"
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#include "clang/AST/Decl.h"
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