Author: rsmith
Date: Fri Aug 11 18:46:03 2017
New Revision: 310776
URL: http://llvm.org/viewvc/llvm-project?rev=310776&view=rev
Log:
PR34163: Don't cache an incorrect key function for a class if queried between
the class becoming complete and its inline methods being parsed.
This replaces the hack of using the "late parsed template" flag to track member
functions with bodies we've not parsed yet; instead we now use the "will have
body" flag, which carries the desired implication that the function declaration
*is* a definition, and that we've just not parsed its body yet.
Added:
cfe/trunk/test/CodeGenCXX/pr34163.cpp
Modified:
cfe/trunk/include/clang/AST/Decl.h
cfe/trunk/lib/AST/DeclCXX.cpp
cfe/trunk/lib/Parse/ParseCXXInlineMethods.cpp
cfe/trunk/lib/Sema/SemaDecl.cpp
cfe/trunk/lib/Sema/SemaTemplateInstantiateDecl.cpp
cfe/trunk/test/SemaCUDA/function-overload.cu
cfe/trunk/test/SemaCUDA/no-destructor-overload.cu
Modified: cfe/trunk/include/clang/AST/Decl.h
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/AST/Decl.h?rev=310776&r1=310775&r2=310776&view=diff
==============================================================================
--- cfe/trunk/include/clang/AST/Decl.h (original)
+++ cfe/trunk/include/clang/AST/Decl.h Fri Aug 11 18:46:03 2017
@@ -1666,8 +1666,7 @@ private:
unsigned HasSkippedBody : 1;
/// Indicates if the function declaration will have a body, once we're done
- /// parsing it. (We don't set it to false when we're done parsing, in the
- /// hopes this is simpler.)
+ /// parsing it.
unsigned WillHaveBody : 1;
/// \brief End part of this FunctionDecl's source range.
Modified: cfe/trunk/lib/AST/DeclCXX.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/AST/DeclCXX.cpp?rev=310776&r1=310775&r2=310776&view=diff
==============================================================================
--- cfe/trunk/lib/AST/DeclCXX.cpp (original)
+++ cfe/trunk/lib/AST/DeclCXX.cpp Fri Aug 11 18:46:03 2017
@@ -1837,9 +1837,10 @@ bool CXXMethodDecl::hasInlineBody() cons
const FunctionDecl *CheckFn = getTemplateInstantiationPattern();
if (!CheckFn)
CheckFn = this;
-
+
const FunctionDecl *fn;
- return CheckFn->hasBody(fn) && !fn->isOutOfLine();
+ return CheckFn->isDefined(fn) && !fn->isOutOfLine() &&
+ (fn->doesThisDeclarationHaveABody() || fn->willHaveBody());
}
bool CXXMethodDecl::isLambdaStaticInvoker() const {
Modified: cfe/trunk/lib/Parse/ParseCXXInlineMethods.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Parse/ParseCXXInlineMethods.cpp?rev=310776&r1=310775&r2=310776&view=diff
==============================================================================
--- cfe/trunk/lib/Parse/ParseCXXInlineMethods.cpp (original)
+++ cfe/trunk/lib/Parse/ParseCXXInlineMethods.cpp Fri Aug 11 18:46:03 2017
@@ -166,20 +166,11 @@ NamedDecl *Parser::ParseCXXInlineMethodD
}
if (FnD) {
- // If this is a friend function, mark that it's late-parsed so that
- // it's still known to be a definition even before we attach the
- // parsed body. Sema needs to treat friend function definitions
- // differently during template instantiation, and it's possible for
- // the containing class to be instantiated before all its member
- // function definitions are parsed.
- //
- // If you remove this, you can remove the code that clears the flag
- // after parsing the member.
- if (D.getDeclSpec().isFriendSpecified()) {
- FunctionDecl *FD = FnD->getAsFunction();
- Actions.CheckForFunctionRedefinition(FD);
- FD->setLateTemplateParsed(true);
- }
+ FunctionDecl *FD = FnD->getAsFunction();
+ // Track that this function will eventually have a body; Sema needs
+ // to know this.
+ Actions.CheckForFunctionRedefinition(FD);
+ FD->setWillHaveBody(true);
} else {
// If semantic analysis could not build a function declaration,
// just throw away the late-parsed declaration.
@@ -559,10 +550,6 @@ void Parser::ParseLexedMethodDef(LexedMe
ParseFunctionStatementBody(LM.D, FnScope);
- // Clear the late-template-parsed bit if we set it before.
- if (LM.D)
- LM.D->getAsFunction()->setLateTemplateParsed(false);
-
while (Tok.isNot(tok::eof))
ConsumeAnyToken();
Modified: cfe/trunk/lib/Sema/SemaDecl.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaDecl.cpp?rev=310776&r1=310775&r2=310776&view=diff
==============================================================================
--- cfe/trunk/lib/Sema/SemaDecl.cpp (original)
+++ cfe/trunk/lib/Sema/SemaDecl.cpp Fri Aug 11 18:46:03 2017
@@ -12090,8 +12090,9 @@ Decl *Sema::ActOnStartOfFunctionDef(Scop
FD->setInvalidDecl();
}
- // See if this is a redefinition.
- if (!FD->isLateTemplateParsed()) {
+ // See if this is a redefinition. If 'will have body' is already set, then
+ // these checks were already performed when it was set.
+ if (!FD->willHaveBody() && !FD->isLateTemplateParsed()) {
CheckForFunctionRedefinition(FD, nullptr, SkipBody);
// If we're skipping the body, we're done. Don't enter the scope.
Modified: cfe/trunk/lib/Sema/SemaTemplateInstantiateDecl.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaTemplateInstantiateDecl.cpp?rev=310776&r1=310775&r2=310776&view=diff
==============================================================================
--- cfe/trunk/lib/Sema/SemaTemplateInstantiateDecl.cpp (original)
+++ cfe/trunk/lib/Sema/SemaTemplateInstantiateDecl.cpp Fri Aug 11 18:46:03 2017
@@ -3771,6 +3771,8 @@ void Sema::InstantiateFunctionDefinition
if (PatternDef) {
Pattern = PatternDef->getBody(PatternDef);
PatternDecl = PatternDef;
+ if (PatternDef->willHaveBody())
+ PatternDef = nullptr;
}
// FIXME: We need to track the instantiation stack in order to know which
Added: cfe/trunk/test/CodeGenCXX/pr34163.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenCXX/pr34163.cpp?rev=310776&view=auto
==============================================================================
--- cfe/trunk/test/CodeGenCXX/pr34163.cpp (added)
+++ cfe/trunk/test/CodeGenCXX/pr34163.cpp Fri Aug 11 18:46:03 2017
@@ -0,0 +1,13 @@
+// RUN: %clang_cc1 -emit-llvm -debug-info-kind=standalone -triple
x86_64-linux-gnu -o - -x c++ %s | FileCheck %s
+
+void f(struct X *) {}
+
+// CHECK: @_ZTV1X =
+struct X {
+ void a() { delete this; }
+ virtual ~X() {}
+ virtual void key_function();
+};
+
+// CHECK: define {{.*}} @_ZN1X12key_functionEv(
+void X::key_function() {}
Modified: cfe/trunk/test/SemaCUDA/function-overload.cu
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/test/SemaCUDA/function-overload.cu?rev=310776&r1=310775&r2=310776&view=diff
==============================================================================
--- cfe/trunk/test/SemaCUDA/function-overload.cu (original)
+++ cfe/trunk/test/SemaCUDA/function-overload.cu Fri Aug 11 18:46:03 2017
@@ -222,7 +222,7 @@ GlobalFnPtr fp_g = g;
// Test overloading of destructors
// Can't mix H and unattributed destructors
struct d_h {
- ~d_h() {} // expected-note {{previous declaration is here}}
+ ~d_h() {} // expected-note {{previous definition is here}}
__host__ ~d_h() {} // expected-error {{destructor cannot be redeclared}}
};
Modified: cfe/trunk/test/SemaCUDA/no-destructor-overload.cu
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/test/SemaCUDA/no-destructor-overload.cu?rev=310776&r1=310775&r2=310776&view=diff
==============================================================================
--- cfe/trunk/test/SemaCUDA/no-destructor-overload.cu (original)
+++ cfe/trunk/test/SemaCUDA/no-destructor-overload.cu Fri Aug 11 18:46:03 2017
@@ -7,27 +7,27 @@
// giant change to clang, and the use cases seem quite limited.
struct A {
- ~A() {} // expected-note {{previous declaration is here}}
+ ~A() {} // expected-note {{previous definition is here}}
__device__ ~A() {} // expected-error {{destructor cannot be redeclared}}
};
struct B {
- __host__ ~B() {} // expected-note {{previous declaration is here}}
+ __host__ ~B() {} // expected-note {{previous definition is here}}
__host__ __device__ ~B() {} // expected-error {{destructor cannot be
redeclared}}
};
struct C {
- __host__ __device__ ~C() {} // expected-note {{previous declaration is here}}
+ __host__ __device__ ~C() {} // expected-note {{previous definition is here}}
__host__ ~C() {} // expected-error {{destructor cannot be redeclared}}
};
struct D {
- __device__ ~D() {} // expected-note {{previous declaration is here}}
+ __device__ ~D() {} // expected-note {{previous definition is here}}
__host__ __device__ ~D() {} // expected-error {{destructor cannot be
redeclared}}
};
struct E {
- __host__ __device__ ~E() {} // expected-note {{previous declaration is here}}
+ __host__ __device__ ~E() {} // expected-note {{previous definition is here}}
__device__ ~E() {} // expected-error {{destructor cannot be redeclared}}
};
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