[OPENMP 4.0] Add 'if' clause for 'cancel' directive.

Add parsing, sema analysis and codegen for 'if' clause in 'cancel' directive.

llvm-svn: 247976

1 files changed, 66 insertions, 0 deletions

diff --git a/clang/test/OpenMP/cancel_if_messages.cpp b/clang/test/OpenMP/cancel_if_messages.cpp
new file mode 100644
index 00000000000..8d1afc9ecdd
--- /dev/null
+++ b/clang/test/OpenMP/cancel_if_messages.cpp
@@ -0,0 +1,66 @@
+// RUN: %clang_cc1 -verify -fopenmp -ferror-limit 100 %s
+
+void foo() {
+}
+
+bool foobool(int argc) {
+  return argc;
+}
+
+struct S1; // expected-note {{declared here}}
+
+template <class T, class S> // expected-note {{declared here}}
+int tmain(T argc, S **argv) {
+  #pragma omp parallel
+  {
+    #pragma omp cancel parallel if // expected-error {{expected '(' after 'if'}}
+    #pragma omp cancel parallel if ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+    #pragma omp cancel parallel if () // expected-error {{expected expression}}
+    #pragma omp cancel parallel if (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
+    #pragma omp cancel parallel if (argc)) // expected-warning {{extra tokens at the end of '#pragma omp cancel' are ignored}}
+    #pragma omp cancel parallel if (argc > 0 ? argv[1] : argv[2])
+    #pragma omp cancel parallel if (foobool(argc)), if (true) // expected-error {{directive '#pragma omp cancel' cannot contain more than one 'if' clause}}
+    #pragma omp cancel parallel if (S) // expected-error {{'S' does not refer to a value}}
+    #pragma omp cancel parallel if (argv[1]=2) // expected-error {{expected ')'}} expected-note {{to match this '('}}
+    #pragma omp cancel parallel if (argc argc) // expected-error {{expected ')'}} expected-note {{to match this '('}}
+    #pragma omp cancel parallel if(argc)
+    #pragma omp cancel parallel if(cancel // expected-warning {{missing ':' after directive name modifier - ignoring}} expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+    #pragma omp cancel parallel if(cancel : // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+    #pragma omp cancel parallel if(cancel : argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
+    #pragma omp cancel parallel if(cancel : argc)
+    #pragma omp cancel parallel if(cancel : argc) if (for:argc) // expected-error {{directive name modifier 'for' is not allowed for '#pragma omp cancel'}}
+    #pragma omp cancel parallel if(cancel : argc) if (cancel:argc) // expected-error {{directive '#pragma omp cancel' cannot contain more than one 'if' clause with 'cancel' name modifier}}
+    #pragma omp cancel parallel if(cancel : argc) if (argc) // expected-error {{no more 'if' clause is allowed}} expected-note {{previous clause with directive name modifier specified here}}
+    foo();
+  }
+
+  return 0;
+}
+
+int main(int argc, char **argv) {
+  #pragma omp parallel
+  {
+    #pragma omp cancel parallel if // expected-error {{expected '(' after 'if'}}
+    #pragma omp cancel parallel if ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+    #pragma omp cancel parallel if () // expected-error {{expected expression}}
+    #pragma omp cancel parallel if (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
+    #pragma omp cancel parallel if (argc)) // expected-warning {{extra tokens at the end of '#pragma omp cancel' are ignored}}
+    #pragma omp cancel parallel if (argc > 0 ? argv[1] : argv[2])
+    #pragma omp cancel parallel if (foobool(argc)), if (true) // expected-error {{directive '#pragma omp cancel' cannot contain more than one 'if' clause}}
+    #pragma omp cancel parallel if (S1) // expected-error {{'S1' does not refer to a value}}
+    #pragma omp cancel parallel if (argv[1]=2) // expected-error {{expected ')'}} expected-note {{to match this '('}}
+    #pragma omp cancel parallel if (argc argc) // expected-error {{expected ')'}} expected-note {{to match this '('}}
+    #pragma omp cancel parallel if (1 0) // expected-error {{expected ')'}} expected-note {{to match this '('}}
+    #pragma omp cancel parallel if(if(tmain(argc, argv) // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+    #pragma omp cancel parallel if(cancel // expected-warning {{missing ':' after directive name modifier - ignoring}} expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+    #pragma omp cancel parallel if(cancel : // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+    #pragma omp cancel parallel if(cancel : argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
+    #pragma omp cancel parallel if(cancel : argc)
+    #pragma omp cancel parallel if(cancel : argc) if (for:argc) // expected-error {{directive name modifier 'for' is not allowed for '#pragma omp cancel'}}
+    #pragma omp cancel parallel if(cancel : argc) if (cancel:argc)  // expected-error {{directive '#pragma omp cancel' cannot contain more than one 'if' clause with 'cancel' name modifier}}
+    #pragma omp cancel parallel if(cancel : argc) if (argc) // expected-error {{no more 'if' clause is allowed}} expected-note {{previous clause with directive name modifier specified here}}
+    foo();
+  }
+
+  return tmain(argc, argv);
+}