[OpenACC] Implement 'trivial' construct/directive parsing.

Now that the `parallel` support has landed, add the other 'trivial' to
implement ones that don't require any additional work other than adding
them to the StringSwitch.

Author: erichkeane

clang/include/clang/Basic/OpenACCKinds.h

@@ -21,6 +21,34 @@ namespace clang {
 enum class OpenACCDirectiveKind {
   // Compute Constructs.
   Parallel,
+  Serial,
+  Kernels,
+
+  // Data Environment.
+  Data,
+  // FIXME: 'enter data', 'exit data'.
+  HostData,
+
+  // Misc.
+  Loop,
+  // FIXME: 'cache'
+
+  // FIXME: Combined Constructs.
+
+  // FIXME: atomic Construct variants.
+
+  // Declare Directive.
+  Declare,
+
+  // Executable Directives. "wait" is first referred to here, but ends up being
+  // in its own section after "routine".
+  Init,
+  Shutdown,
+  Set,
+  Update,
+  // FIXME: wait construct.
+
+  // FIXME: routine construct.
 
   // Invalid.
   Invalid,

clang/lib/Parse/ParseOpenACC.cpp

@@ -26,6 +26,16 @@ namespace {
 OpenACCDirectiveKind GetOpenACCDirectiveKind(StringRef Name) {
   return llvm::StringSwitch<OpenACCDirectiveKind>(Name)
       .Case("parallel", OpenACCDirectiveKind::Parallel)
+      .Case("serial", OpenACCDirectiveKind::Serial)
+      .Case("kernels", OpenACCDirectiveKind::Kernels)
+      .Case("data", OpenACCDirectiveKind::Data)
+      .Case("host_data", OpenACCDirectiveKind::HostData)
+      .Case("loop", OpenACCDirectiveKind::Loop)
+      .Case("declare", OpenACCDirectiveKind::Declare)
+      .Case("init", OpenACCDirectiveKind::Init)
+      .Case("shutdown", OpenACCDirectiveKind::Shutdown)
+      .Case("set", OpenACCDirectiveKind::Shutdown)
+      .Case("update", OpenACCDirectiveKind::Update)
       .Default(OpenACCDirectiveKind::Invalid);
 }
 

clang/test/ParserOpenACC/parse-constructs.c

@@ -13,4 +13,62 @@ void func() {
   // expected-warning@+2{{OpenACC clause parsing not yet implemented}}
   // expected-warning@+1{{OpenACC directives not yet implemented, pragma ignored}}
 #pragma acc parallel() clause list
+  for(;;){}
+  // expected-warning@+2{{OpenACC clause parsing not yet implemented}}
+  // expected-warning@+1{{OpenACC directives not yet implemented, pragma ignored}}
+#pragma acc serial clause list
+  for(;;){}
+  // expected-warning@+2{{OpenACC clause parsing not yet implemented}}
+  // expected-warning@+1{{OpenACC directives not yet implemented, pragma ignored}}
+#pragma acc kernels clause list
+  for(;;){}
+  // expected-warning@+2{{OpenACC clause parsing not yet implemented}}
+  // expected-warning@+1{{OpenACC directives not yet implemented, pragma ignored}}
+#pragma acc data clause list
+  for(;;){}
+  // expected-warning@+2{{OpenACC clause parsing not yet implemented}}
+  // expected-warning@+1{{OpenACC directives not yet implemented, pragma ignored}}
+#pragma acc host_data clause list
+  for(;;){}
+  // expected-warning@+2{{OpenACC clause parsing not yet implemented}}
+  // expected-warning@+1{{OpenACC directives not yet implemented, pragma ignored}}
+#pragma acc loop clause list
+  for(;;){}
+  // expected-warning@+2{{OpenACC clause parsing not yet implemented}}
+  // expected-warning@+1{{OpenACC directives not yet implemented, pragma ignored}}
+#pragma acc parallel invalid clause list
+  for(;;){}
+  // expected-warning@+2{{OpenACC clause parsing not yet implemented}}
+  // expected-warning@+1{{OpenACC directives not yet implemented, pragma ignored}}
+#pragma acc parallel loop clause list
+  for(;;){}
+  // expected-warning@+2{{OpenACC clause parsing not yet implemented}}
+  // expected-warning@+1{{OpenACC directives not yet implemented, pragma ignored}}
+#pragma acc serial loop clause list
+  for(;;){}
+  // expected-warning@+2{{OpenACC clause parsing not yet implemented}}
+  // expected-warning@+1{{OpenACC directives not yet implemented, pragma ignored}}
+#pragma acc kernels loop clause list
+  for(;;){}
+
+  // expected-warning@+2{{OpenACC clause parsing not yet implemented}}
+  // expected-warning@+1{{OpenACC directives not yet implemented, pragma ignored}}
+#pragma acc declare clause list
+  for(;;){}
+  // expected-warning@+2{{OpenACC clause parsing not yet implemented}}
+  // expected-warning@+1{{OpenACC directives not yet implemented, pragma ignored}}
+#pragma acc init clause list
+  for(;;){}
+  // expected-warning@+2{{OpenACC clause parsing not yet implemented}}
+  // expected-warning@+1{{OpenACC directives not yet implemented, pragma ignored}}
+#pragma acc shutdown clause list
+  for(;;){}
+  // expected-warning@+2{{OpenACC clause parsing not yet implemented}}
+  // expected-warning@+1{{OpenACC directives not yet implemented, pragma ignored}}
+#pragma acc set clause list
+  for(;;){}
+  // expected-warning@+2{{OpenACC clause parsing not yet implemented}}
+  // expected-warning@+1{{OpenACC directives not yet implemented, pragma ignored}}
+#pragma acc update clause list
+  for(;;){}
 }