Hi! Both C and C++ FE had forgotten case when #pragma omp target is not followed by any identifier token. We need to ignore the pragma in that case the same as we ignore it e.g. for #pragma omp target data etc.
Bootstrapped/regtested on x86_64-linux and i686-linux, committed to trunk. 2017-02-16 Jakub Jelinek <ja...@redhat.com> PR c++/79512 c/ * c-parser.c (c_parser_omp_target): For -fopenmp-simd ignore #pragma omp target even when not followed by identifier. cp/ * parser.c (cp_parser_omp_target): For -fopenmp-simd ignore #pragma omp target even when not followed by identifier. testsuite/ * c-c++-common/gomp/pr79512.c: New test. --- gcc/c/c-parser.c.jj 2017-02-13 22:55:31.000000000 +0100 +++ gcc/c/c-parser.c 2017-02-15 15:48:19.688854692 +0100 @@ -16505,6 +16505,11 @@ c_parser_omp_target (c_parser *parser, e return c_parser_omp_target_update (loc, parser, context); } } + if (!flag_openmp) /* flag_openmp_simd */ + { + c_parser_skip_to_pragma_eol (parser, false); + return false; + } stmt = make_node (OMP_TARGET); TREE_TYPE (stmt) = void_type_node; --- gcc/cp/parser.c.jj 2017-02-14 20:34:48.000000000 +0100 +++ gcc/cp/parser.c 2017-02-15 15:49:32.803895243 +0100 @@ -35993,6 +35993,11 @@ cp_parser_omp_target (cp_parser *parser, return cp_parser_omp_target_update (parser, pragma_tok, context); } } + if (!flag_openmp) /* flag_openmp_simd */ + { + cp_parser_skip_to_pragma_eol (parser, pragma_tok); + return false; + } stmt = make_node (OMP_TARGET); TREE_TYPE (stmt) = void_type_node; --- gcc/testsuite/c-c++-common/gomp/pr79512.c.jj 2017-02-15 15:51:33.835307012 +0100 +++ gcc/testsuite/c-c++-common/gomp/pr79512.c 2017-02-15 15:51:12.000000000 +0100 @@ -0,0 +1,14 @@ +/* PR c++/79512 */ +/* { dg-options "-fopenmp-simd" } */ + +void +foo (void) +{ + #pragma omp target + #pragma omp teams + { + int i; + for (i = 0; i < 10; i++) + ; + } +} Jakub