Re-land "MS ABI: lambda call operators are instance methods and should use thiscall"

Update the test cases to pass when lambda call operators use thiscall.

Update the lambda-to-block conversion operator to use the default free
function calling convention instead of the call operator's convention.

This reverts commit r233082 and re-instates r233023.

llvm-svn: 233835
This commit is contained in:
Reid Kleckner 2015-04-01 20:22:13 +00:00
parent 084c384c6f
commit d2f6c726e7
8 changed files with 61 additions and 36 deletions

View File

@ -1340,22 +1340,27 @@ static void addBlockPointerConversion(Sema &S,
SourceRange IntroducerRange,
CXXRecordDecl *Class,
CXXMethodDecl *CallOperator) {
const FunctionProtoType *Proto
= CallOperator->getType()->getAs<FunctionProtoType>();
QualType BlockPtrTy;
{
FunctionProtoType::ExtProtoInfo ExtInfo = Proto->getExtProtoInfo();
ExtInfo.TypeQuals = 0;
QualType FunctionTy = S.Context.getFunctionType(
Proto->getReturnType(), Proto->getParamTypes(), ExtInfo);
BlockPtrTy = S.Context.getBlockPointerType(FunctionTy);
}
const FunctionProtoType *Proto =
CallOperator->getType()->getAs<FunctionProtoType>();
// The function type inside the block pointer type is the same as the call
// operator with some tweaks. The calling convention is the default free
// function convention, and the type qualifications are lost.
FunctionProtoType::ExtProtoInfo BlockEPI = Proto->getExtProtoInfo();
BlockEPI.ExtInfo =
BlockEPI.ExtInfo.withCallingConv(S.Context.getDefaultCallingConvention(
Proto->isVariadic(), /*IsCXXMethod=*/false));
BlockEPI.TypeQuals = 0;
QualType FunctionTy = S.Context.getFunctionType(
Proto->getReturnType(), Proto->getParamTypes(), BlockEPI);
QualType BlockPtrTy = S.Context.getBlockPointerType(FunctionTy);
FunctionProtoType::ExtProtoInfo ConversionEPI(
S.Context.getDefaultCallingConvention(
/*IsVariadic=*/false, /*IsCXXMethod=*/true));
ConversionEPI.TypeQuals = Qualifiers::Const;
QualType ConvTy = S.Context.getFunctionType(BlockPtrTy, None, ConversionEPI);
FunctionProtoType::ExtProtoInfo ExtInfo(S.Context.getDefaultCallingConvention(
/*IsVariadic=*/false, /*IsCXXMethod=*/true));
ExtInfo.TypeQuals = Qualifiers::Const;
QualType ConvTy = S.Context.getFunctionType(BlockPtrTy, None, ExtInfo);
SourceLocation Loc = IntroducerRange.getBegin();
DeclarationName Name
= S.Context.DeclarationNames.getCXXConversionFunctionName(

View File

@ -2483,6 +2483,10 @@ getCCForDeclaratorChunk(Sema &S, Declarator &D,
// in a member pointer.
IsCXXInstanceMethod =
D.getTypeObject(I).Kind == DeclaratorChunk::MemberPointer;
} else if (D.getContext() == Declarator::LambdaExprContext) {
// This can only be a call operator for a lambda, which is an instance
// method.
IsCXXInstanceMethod = true;
} else {
// We're the innermost decl chunk, so must be a function declarator.
assert(D.isFunctionDeclarator());

View File

@ -35,10 +35,10 @@ auto TemplateFuncionWithLocalLambda(T) {
return LocalLambdaWithLocalType();
}
// MSVC2013-DAG: "\01?ValueFromTemplateFuncionWithLocalLambda@@3ULocalType@?2???R<lambda_1>@??$TemplateFuncionWithLocalLambda@H@@YA?A?<auto>@@H@Z@QBA?A?3@XZ@A"
// MSVC2013-DAG: "\01?ValueFromTemplateFuncionWithLocalLambda@@3ULocalType@?2???R<lambda_1>@??$TemplateFuncionWithLocalLambda@H@@YA?A?<auto>@@H@Z@QBA?A?3@XZ@A"
// MSVC2015-DAG: "\01?ValueFromTemplateFuncionWithLocalLambda@@3ULocalType@?1???R<lambda_1>@??$TemplateFuncionWithLocalLambda@H@@YA?A?<auto>@@H@Z@QBA?A?3@XZ@A"
// MSVC2015-DAG: "\01?ValueFromTemplateFuncionWithLocalLambda@@3ULocalType@?1???R<lambda_1>@??$TemplateFuncionWithLocalLambda@H@@YA?A?<auto>@@H@Z@QBA?A?3@XZ@A"
// MSVC2013-DAG: "\01?ValueFromTemplateFuncionWithLocalLambda@@3ULocalType@?2???R<lambda_1>@??$TemplateFuncionWithLocalLambda@H@@YA?A?<auto>@@H@Z@QBE?A?3@XZ@A"
// MSVC2013-DAG: "\01?ValueFromTemplateFuncionWithLocalLambda@@3ULocalType@?2???R<lambda_1>@??$TemplateFuncionWithLocalLambda@H@@YA?A?<auto>@@H@Z@QBE?A?3@XZ@A"
// MSVC2015-DAG: "\01?ValueFromTemplateFuncionWithLocalLambda@@3ULocalType@?1???R<lambda_1>@??$TemplateFuncionWithLocalLambda@H@@YA?A?<auto>@@H@Z@QBE?A?3@XZ@A"
// MSVC2015-DAG: "\01?ValueFromTemplateFuncionWithLocalLambda@@3ULocalType@?1???R<lambda_1>@??$TemplateFuncionWithLocalLambda@H@@YA?A?<auto>@@H@Z@QBE?A?3@XZ@A"
// CHECK: "\01??$TemplateFuncionWithLocalLambda@H@@YA?A?<auto>@@H@Z"
// CHECK: "\01??R<lambda_1>@??$TemplateFuncionWithLocalLambda@H@@YA?A?<auto>@@H@Z@QBA?A?1@XZ"
// CHECK: "\01??R<lambda_1>@??$TemplateFuncionWithLocalLambda@H@@YA?A?<auto>@@H@Z@QBE?A?1@XZ"
auto ValueFromTemplateFuncionWithLocalLambda = TemplateFuncionWithLocalLambda(0);

View File

@ -22,7 +22,7 @@ typedef __INTPTR_TYPE__ intptr_t;
// CHECK: store [[INTPTR_T]]* %{{.+}}, [[INTPTR_T]]** [[CAP_BUFFER_ADDR]]
// CHECK: [[CAP_N_REF:%.+]] = getelementptr inbounds [[CAP_TYPE1]], [[CAP_TYPE1]]* [[CAP_ARG:%.+]], i{{.+}} 0, i{{.+}} 2
// CHECK: store [[INTPTR_T]]* [[N_ADDR]], [[INTPTR_T]]** [[CAP_N_REF]]
// CHECK: call void [[G_LAMBDA:@.+]]([[CAP_TYPE1]]* [[CAP_ARG]])
// CHECK: call{{( x86_thiscallcc)?}} void [[G_LAMBDA:@.+]]([[CAP_TYPE1]]* [[CAP_ARG]])
// CHECK: ret void
void g(intptr_t n) {
intptr_t buffer[n];
@ -88,7 +88,7 @@ int main() {
// CHECK: store [[INTPTR_T]] [[SIZE]], [[INTPTR_T]]* [[CAP_SIZE_REF]]
// CHECK: [[CAP_BUFFER_ADDR_REF:%.+]] = getelementptr inbounds [[CAP_TYPE2]], [[CAP_TYPE2]]* [[CAP_ARG]], i{{.+}} 0, i{{.+}} 1
// CHECK: store [[INTPTR_T]]* [[BUFFER_ADDR]], [[INTPTR_T]]** [[CAP_BUFFER_ADDR_REF]]
// CHECK: call void [[F_INT_LAMBDA:@.+]]([[CAP_TYPE2]]* [[CAP_ARG]])
// CHECK: call{{( x86_thiscallcc)?}} void [[F_INT_LAMBDA:@.+]]([[CAP_TYPE2]]* [[CAP_ARG]])
// CHECK: call void @llvm.stackrestore(
// CHECK: ret void
// CHECK: void [[B_INT]]([[INTPTR_T]]
@ -107,11 +107,11 @@ int main() {
// CHECK: store [[INTPTR_T]]* [[BUFFER1_ADDR]], [[INTPTR_T]]** [[CAP_BUFFER1_ADDR_REF]]
// CHECK: [[CAP_BUFFER2_ADDR_REF:%.+]] = getelementptr inbounds [[CAP_TYPE3]], [[CAP_TYPE3]]* [[CAP_ARG]], i{{.+}} 0, i{{.+}} 4
// CHECK: store [[INTPTR_T]]* [[BUFFER2_ADDR]], [[INTPTR_T]]** [[CAP_BUFFER2_ADDR_REF]]
// CHECK: call void [[B_INT_LAMBDA:@.+]]([[CAP_TYPE3]]* [[CAP_ARG]])
// CHECK: call{{( x86_thiscallcc)?}} void [[B_INT_LAMBDA:@.+]]([[CAP_TYPE3]]* [[CAP_ARG]])
// CHECK: call void @llvm.stackrestore(
// CHECK: ret void
// CHECK: define linkonce_odr void [[F_INT_LAMBDA]]([[CAP_TYPE2]]*
// CHECK: define linkonce_odr{{( x86_thiscallcc)?}} void [[F_INT_LAMBDA]]([[CAP_TYPE2]]*
// CHECK: [[THIS:%.+]] = load [[CAP_TYPE2]]*, [[CAP_TYPE2]]**
// CHECK: [[SIZE_REF:%.+]] = getelementptr inbounds [[CAP_TYPE2]], [[CAP_TYPE2]]* [[THIS]], i{{.+}} 0, i{{.+}} 0
// CHECK: [[SIZE:%.+]] = load [[INTPTR_T]], [[INTPTR_T]]* [[SIZE_REF]]
@ -120,7 +120,7 @@ int main() {
// CHECK: call void @llvm.stackrestore(
// CHECK: ret void
// CHECK: define {{.*}} void [[B_INT_LAMBDA]]([[CAP_TYPE3]]*
// CHECK: define linkonce_odr{{( x86_thiscallcc)?}} void [[B_INT_LAMBDA]]([[CAP_TYPE3]]*
// CHECK: [[SIZE2_REF:%.+]] = getelementptr inbounds [[CAP_TYPE3]], [[CAP_TYPE3]]* [[THIS:%.+]], i{{[0-9]+}} 0, i{{[0-9]+}} 1
// CHECK: [[SIZE2:%.+]] = load i{{[0-9]+}}, i{{[0-9]+}}* [[SIZE2_REF]]
// CHECK: [[SIZE1_REF:%.+]] = getelementptr inbounds [[CAP_TYPE3]], [[CAP_TYPE3]]* [[THIS]], i{{[0-9]+}} 0, i{{[0-9]+}} 2
@ -152,10 +152,10 @@ int main() {
// CHECK: [[BUFFER1_ADDR_REF_ORIG:%.+]] = getelementptr inbounds [[CAP_TYPE3]], [[CAP_TYPE3]]* [[THIS]], i{{[0-9]+}} 0, i{{[0-9]+}} 3
// CHECK: [[BUFFER1_ADDR_ORIG:%.+]] = load [[INTPTR_T]]*, [[INTPTR_T]]** [[BUFFER1_ADDR_REF_ORIG]]
// CHECK: store [[INTPTR_T]]* [[BUFFER1_ADDR_ORIG]], [[INTPTR_T]]** [[BUFFER1_ADDR_REF]]
// CHECK: call void [[B_INT_LAMBDA_LAMBDA:@.+]]([[CAP_TYPE4]]* [[CAP]])
// CHECK: call{{( x86_thiscallcc)?}} void [[B_INT_LAMBDA_LAMBDA:@.+]]([[CAP_TYPE4]]* [[CAP]])
// CHECK: ret void
// CHECK: define {{.*}} void [[B_INT_LAMBDA_LAMBDA]]([[CAP_TYPE4]]*
// CHECK: define linkonce_odr{{( x86_thiscallcc)?}} void [[B_INT_LAMBDA_LAMBDA]]([[CAP_TYPE4]]*
// CHECK: [[SIZE1_REF:%.+]] = getelementptr inbounds [[CAP_TYPE4]], [[CAP_TYPE4]]* [[THIS:%.+]], i{{[0-9]+}} 0, i{{[0-9]+}} 1
// CHECK: [[SIZE1:%.+]] = load i{{[0-9]+}}, i{{[0-9]+}}* [[SIZE1_REF]]
// CHECK: [[SIZE2_REF:%.+]] = getelementptr inbounds [[CAP_TYPE4]], [[CAP_TYPE4]]* [[THIS]], i{{[0-9]+}} 0, i{{[0-9]+}} 3

View File

@ -52,7 +52,7 @@ int main() {
#ifdef LAMBDA
// LAMBDA: [[G:@.+]] = global i{{[0-9]+}} 1212,
// LAMBDA-LABEL: @main
// LAMBDA: call void [[OUTER_LAMBDA:@.+]](
// LAMBDA: call{{( x86_thiscallcc)?}} void [[OUTER_LAMBDA:@.+]](
[&]() {
// LAMBDA: define{{.*}} internal{{.*}} void [[OUTER_LAMBDA]](
// LAMBDA: [[G_LOCAL_REF:%.+]] = getelementptr inbounds %{{.+}}, %{{.+}}* [[AGG_CAPTURED:%.+]], i{{[0-9]+}} 0, i{{[0-9]+}} 0
@ -74,7 +74,7 @@ int main() {
// LAMBDA: store volatile i{{[0-9]+}} 1, i{{[0-9]+}}* [[G_PRIVATE_ADDR]],
// LAMBDA: [[G_PRIVATE_ADDR_REF:%.+]] = getelementptr inbounds %{{.+}}, %{{.+}}* [[ARG:%.+]], i{{[0-9]+}} 0, i{{[0-9]+}} 0
// LAMBDA: store i{{[0-9]+}}* [[G_PRIVATE_ADDR]], i{{[0-9]+}}** [[G_PRIVATE_ADDR_REF]]
// LAMBDA: call void [[INNER_LAMBDA:@.+]](%{{.+}}* [[ARG]])
// LAMBDA: call{{( x86_thiscallcc)?}} void [[INNER_LAMBDA:@.+]](%{{.+}}* [[ARG]])
[&]() {
// LAMBDA: define {{.+}} void [[INNER_LAMBDA]](%{{.+}}* [[ARG_PTR:%.+]])
// LAMBDA: store %{{.+}}* [[ARG_PTR]], %{{.+}}** [[ARG_PTR_REF:%.+]],

View File

@ -42,7 +42,7 @@ int main() {
#ifdef LAMBDA
// LAMBDA: [[G:@.+]] = global i{{[0-9]+}} 1212,
// LAMBDA-LABEL: @main
// LAMBDA: call void [[OUTER_LAMBDA:@.+]](
// LAMBDA: call{{( x86_thiscallcc)?}} void [[OUTER_LAMBDA:@.+]](
[&]() {
// LAMBDA: define{{.*}} internal{{.*}} void [[OUTER_LAMBDA]](
// LAMBDA: [[G_LOCAL_REF:%.+]] = getelementptr inbounds %{{.+}}, %{{.+}}* [[AGG_CAPTURED:%.+]], i{{[0-9]+}} 0, i{{[0-9]+}} 0
@ -59,7 +59,7 @@ int main() {
// LAMBDA: store volatile i{{[0-9]+}} 1, i{{[0-9]+}}* [[G_PRIVATE_ADDR]],
// LAMBDA: [[G_PRIVATE_ADDR_REF:%.+]] = getelementptr inbounds %{{.+}}, %{{.+}}* [[ARG:%.+]], i{{[0-9]+}} 0, i{{[0-9]+}} 0
// LAMBDA: store i{{[0-9]+}}* [[G_PRIVATE_ADDR]], i{{[0-9]+}}** [[G_PRIVATE_ADDR_REF]]
// LAMBDA: call void [[INNER_LAMBDA:@.+]](%{{.+}}* [[ARG]])
// LAMBDA: call{{( x86_thiscallcc)?}} void [[INNER_LAMBDA:@.+]](%{{.+}}* [[ARG]])
[&]() {
// LAMBDA: define {{.+}} void [[INNER_LAMBDA]](%{{.+}}* [[ARG_PTR:%.+]])
// LAMBDA: store %{{.+}}* [[ARG_PTR]], %{{.+}}** [[ARG_PTR_REF:%.+]],

View File

@ -19,8 +19,8 @@
void lambdas() {
int i = 1;
// LMBGEN-LABEL: define internal{{( zeroext)?}} i1 @"_ZZ7lambdasvENK3$_0clEi"(
// LMBUSE-LABEL: define internal{{( zeroext)?}} i1 @"_ZZ7lambdasvENK3$_0clEi"(
// LMBGEN-LABEL: define internal{{( x86_thiscallcc)?( zeroext)?}} i1 @"_ZZ7lambdasvENK3$_0clEi"(
// LMBUSE-LABEL: define internal{{( x86_thiscallcc)?( zeroext)?}} i1 @"_ZZ7lambdasvENK3$_0clEi"(
// LMBGEN: store {{.*}} @[[LFC]], i64 0, i64 0
auto f = [&i](int k) {
// LMBGEN: store {{.*}} @[[LFC]], i64 0, i64 1

View File

@ -1,6 +1,6 @@
// RUN: %clang_cc1 -triple i686-pc-win32 -fms-extensions -verify %s
// RUN: %clang_cc1 -triple i686-pc-mingw32 -verify %s
// RUN: %clang_cc1 -triple i686-pc-mingw32 -fms-extensions -verify %s
// RUN: %clang_cc1 -std=c++14 -triple i686-pc-win32 -fms-extensions -verify %s
// RUN: %clang_cc1 -std=c++14 -triple i686-pc-mingw32 -verify %s
// RUN: %clang_cc1 -std=c++14 -triple i686-pc-mingw32 -fms-extensions -verify %s
typedef void void_fun_t();
typedef void __cdecl cdecl_fun_t();
@ -242,3 +242,19 @@ namespace test8 {
s.f(p); // expected-note {{in instantiation of member function 'test8::S<void *>::f' requested here}}
}
}
namespace test9 {
// Used to fail when we forgot to make lambda call operators use __thiscall.
template <typename F>
decltype(auto) deduce(F f) {
return &decltype(f)::operator();
}
template <typename C, typename R, typename A>
decltype(auto) signaturehelper(R (C::*f)(A) const) {
return R();
}
void f() {
auto l = [](int x) { return x * 2; };
decltype(signaturehelper(deduce(l))) p;
}
}