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-rw-r--r--clang/lib/Parse/ParseExprCXX.cpp19
-rw-r--r--clang/test/Parser/lambda-attr.cu33
2 files changed, 45 insertions, 7 deletions
diff --git a/clang/lib/Parse/ParseExprCXX.cpp b/clang/lib/Parse/ParseExprCXX.cpp
index 35661d51d09..2287e072730 100644
--- a/clang/lib/Parse/ParseExprCXX.cpp
+++ b/clang/lib/Parse/ParseExprCXX.cpp
@@ -1124,7 +1124,17 @@ ExprResult Parser::ParseLambdaExpressionAfterIntroducer(
DeclSpec DS(AttrFactory);
Declarator D(DS, Declarator::LambdaExprContext);
TemplateParameterDepthRAII CurTemplateDepthTracker(TemplateParameterDepth);
- Actions.PushLambdaScope();
+ Actions.PushLambdaScope();
+
+ ParsedAttributes Attr(AttrFactory);
+ SourceLocation DeclLoc = Tok.getLocation();
+ SourceLocation DeclEndLoc = DeclLoc;
+ if (getLangOpts().CUDA) {
+ // In CUDA code, GNU attributes are allowed to appear immediately after the
+ // "[...]", even if there is no "(...)" before the lambda body.
+ MaybeParseGNUAttributes(Attr, &DeclEndLoc);
+ D.takeAttributes(Attr, DeclEndLoc);
+ }
TypeResult TrailingReturnType;
if (Tok.is(tok::l_paren)) {
@@ -1133,13 +1143,11 @@ ExprResult Parser::ParseLambdaExpressionAfterIntroducer(
Scope::FunctionDeclarationScope |
Scope::DeclScope);
- SourceLocation DeclEndLoc;
BalancedDelimiterTracker T(*this, tok::l_paren);
T.consumeOpen();
SourceLocation LParenLoc = T.getOpenLocation();
// Parse parameter-declaration-clause.
- ParsedAttributes Attr(AttrFactory);
SmallVector<DeclaratorChunk::ParamInfo, 16> ParamInfo;
SourceLocation EllipsisLoc;
@@ -1245,12 +1253,10 @@ ExprResult Parser::ParseLambdaExpressionAfterIntroducer(
Diag(Tok, diag::err_lambda_missing_parens)
<< TokKind
<< FixItHint::CreateInsertion(Tok.getLocation(), "() ");
- SourceLocation DeclLoc = Tok.getLocation();
- SourceLocation DeclEndLoc = DeclLoc;
+ DeclEndLoc = DeclLoc;
// GNU-style attributes must be parsed before the mutable specifier to be
// compatible with GCC.
- ParsedAttributes Attr(AttrFactory);
MaybeParseGNUAttributes(Attr, &DeclEndLoc);
// Parse 'mutable', if it's there.
@@ -1297,7 +1303,6 @@ ExprResult Parser::ParseLambdaExpressionAfterIntroducer(
TrailingReturnType),
Attr, DeclEndLoc);
}
-
// FIXME: Rename BlockScope -> ClosureScope if we decide to continue using
// it.
diff --git a/clang/test/Parser/lambda-attr.cu b/clang/test/Parser/lambda-attr.cu
new file mode 100644
index 00000000000..c51e0a2b9d9
--- /dev/null
+++ b/clang/test/Parser/lambda-attr.cu
@@ -0,0 +1,33 @@
+// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
+// RUN: %clang_cc1 -std=c++11 -fsyntax-only -fcuda-is-device -verify %s
+
+// expected-no-diagnostics
+
+__attribute__((device)) void device_fn() {}
+__attribute__((device)) void hd_fn() {}
+
+__attribute__((device)) void device_attr() {
+ ([]() __attribute__((device)) { device_fn(); })();
+ ([] __attribute__((device)) () { device_fn(); })();
+ ([] __attribute__((device)) { device_fn(); })();
+
+ ([&]() __attribute__((device)){ device_fn(); })();
+ ([&] __attribute__((device)) () { device_fn(); })();
+ ([&] __attribute__((device)) { device_fn(); })();
+
+ ([&](int) __attribute__((device)){ device_fn(); })(0);
+ ([&] __attribute__((device)) (int) { device_fn(); })(0);
+}
+
+__attribute__((host)) __attribute__((device)) void host_device_attrs() {
+ ([]() __attribute__((host)) __attribute__((device)){ hd_fn(); })();
+ ([] __attribute__((host)) __attribute__((device)) () { hd_fn(); })();
+ ([] __attribute__((host)) __attribute__((device)) { hd_fn(); })();
+
+ ([&]() __attribute__((host)) __attribute__((device)){ hd_fn(); })();
+ ([&] __attribute__((host)) __attribute__((device)) () { hd_fn(); })();
+ ([&] __attribute__((host)) __attribute__((device)) { hd_fn(); })();
+
+ ([&](int) __attribute__((host)) __attribute__((device)){ hd_fn(); })(0);
+ ([&] __attribute__((host)) __attribute__((device)) (int) { hd_fn(); })(0);
+}
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