[OPENMP 4.1] Parsing/sema analysis for extended format of 'if' clause.

OpenMP 4.1 added special 'directive-name-modifier' to the 'if' clause.
Format of 'if' clause is as follows:
```
if([ directive-name-modifier :] scalar-logical-expression)
```

The restriction rules are also changed.
1. If any 'if' clause on the directive includes a 'directive-name-modifier' then all 'if' clauses on the directive must include a 'directive-name-modifier'.
2. At most one 'if' clause without a 'directive-name-modifier' can appear on the directive.
3. At most one 'if' clause with some particular 'directive-name-modifier' can appear on the directive.

'directive-name-modifier' is important for combined directives and allows to separate conditions in 'if' clause for simple sub-directives in combined directive. This 'directive-name-modifier' identifies the sub-directive to which this 'if' clause must be applied.

llvm-svn: 246747

1 files changed, 6 insertions, 0 deletions

diff --git a/clang/test/OpenMP/target_data_if_messages.cpp b/clang/test/OpenMP/target_data_if_messages.cpp
index 3a0e815798f..38008dd30fe 100644
--- a/clang/test/OpenMP/target_data_if_messages.cpp
+++ b/clang/test/OpenMP/target_data_if_messages.cpp
@@ -20,6 +20,12 @@ int main(int argc, char **argv) {
   #pragma omp target data if (foobool(argc)), if (true) // expected-error {{directive '#pragma omp target data' cannot contain more than one 'if' clause}}
   #pragma omp target data if (S1) // expected-error {{'S1' does not refer to a value}}
   #pragma omp target data if (argv[1]=2) // expected-error {{expected ')'}} expected-note {{to match this '('}}
+  #pragma omp target data if(target data : // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  #pragma omp target data if(target data : argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
+  #pragma omp target data if(target data : argc)
+  #pragma omp target data if(target data : argc) if (for:argc) // expected-error {{directive name modifier 'for' is not allowed for '#pragma omp target data'}}
+  #pragma omp target data if(target data : argc) if (target data:argc) // expected-error {{directive '#pragma omp target data' cannot contain more than one 'if' clause with 'target data' name modifier}}
+  #pragma omp target data if(target data : argc) if (argc) // expected-error {{no more 'if' clause is allowed}}
   foo();
 
   return 0;