Hi! Unlike the C++ FE, the C FE ignored pragmas (as if they weren't there) in pragma_stmt contexts if c*_parser_pragma returns false only when after labels, not inside of substatements of selection or loop statements. After making just that change, several gomp/goacc testcases started failing, because extra diagnostics has been emitted (in C, in C++ it was emitted already before). Say void foo (int x) { if (x) #pragma omp barrier } used to in C emit just an error that the pragma is not allowed in such contexts, but in C++ emitted both that and a parsing error that if (x) } is invalid. So, the rest of this patch is mostly about returning true after we report that that certain pragma is not allowed in pragma_stmt contexts, because for error-recovery it seems better to treat the pragma in that case as something that is the substatement of such if etc. c*_parser_pragma return value is only ever used for pragma_stmt context, in which false means act as if the pragma isn't there (e.g. has been handled already by preprocessor etc.), and true which means it was there.
Bootstrapped/regtested on x86_64-linux and i686-linux, committed to trunk. 2021-08-18 Jakub Jelinek <ja...@redhat.com> gcc/c/ * c-parser.c (c_parser_statement_after_labels): Add restart label near the start of the function. If c_parser_pragma returns false, goto restart. (c_parser_pragma): For PRAGMA_OMP_CANCELLATION_POINT return what c_parser_omp_cancellation_point returned. For PRAGMA_OMP_DECLARE return what c_parser_omp_declare returned. Return true instead of false after emitting errors that the directive is not allowed in pragma_stmt context. (c_parser_omp_ordered): Return true instead of false after emitting errors that the directive is not allowed in pragma_stmt context. (c_parser_omp_target_update): Likewise. (c_parser_omp_target_enter_data, c_parser_omp_target_exit_data): Change return type from tree to bool, return false if the directive should be ignored in pragma_stmt contexts. (c_parser_omp_target): Adjust callers of c_parser_omp_target_*_data, return their result directly. (c_parser_omp_cancellation_point): Change return type from void to bool, return false if the directive should be ignored in pragma_stmt contexts. (c_parser_omp_declare): Likewise. gcc/cp/ * parser.c (cp_parser_omp_ordered): Return true instead of false after emitting errors that the directive is not allowed in pragma_stmt context. (cp_parser_omp_target_update): Likewise. (cp_parser_omp_cancellation_point): Change return type from void to bool, return false if the directive should be ignored in pragma_stmt contexts. (cp_parser_omp_target_enter_data, cp_parser_omp_target_exit_data): Change return type from tree to bool, return false if the directive should be ignored in pragma_stmt contexts. (cp_parser_omp_target): Adjust callers of cp_parser_omp_target_*_data, return their result directly. (cp_parser_pragma): For PRAGMA_OMP_CANCELLATION_POINT return what cp_parser_omp_cancellation_point returned. Return true instead of false after emitting errors that the directive is not allowed in pragma_stmt context. gcc/testsuite/ * c-c++-common/gomp/pr63326.c: Don't expect extra "before" errors in C++. * g++.dg/gomp/attrs-7.C: Don't expect one extra error. * g++.dg/gomp/barrier-2.C: Likewise. * gcc.dg/gomp/declare-simd-5.c: Likewise. * gcc.dg/gomp/barrier-2.c: Likewise. * gcc.dg/gomp/declare-variant-2.c: Likewise. --- gcc/c/c-parser.c.jj 2021-08-16 23:11:24.947184006 +0200 +++ gcc/c/c-parser.c 2021-08-17 17:56:34.005226310 +0200 @@ -1582,10 +1582,10 @@ static void c_parser_omp_cancel (c_parse enum pragma_context { pragma_external, pragma_struct, pragma_param, pragma_stmt, pragma_compound }; static bool c_parser_pragma (c_parser *, enum pragma_context, bool *); -static void c_parser_omp_cancellation_point (c_parser *, enum pragma_context); +static bool c_parser_omp_cancellation_point (c_parser *, enum pragma_context); static bool c_parser_omp_target (c_parser *, enum pragma_context, bool *); static void c_parser_omp_end_declare_target (c_parser *); -static void c_parser_omp_declare (c_parser *, enum pragma_context); +static bool c_parser_omp_declare (c_parser *, enum pragma_context); static void c_parser_omp_requires (c_parser *); static bool c_parser_omp_ordered (c_parser *, enum pragma_context, bool *); static void c_parser_oacc_routine (c_parser *, enum pragma_context); @@ -6100,6 +6100,7 @@ c_parser_statement_after_labels (c_parse if (c_parser_peek_token (parser)->type != CPP_OPEN_BRACE) add_debug_begin_stmt (loc); + restart: switch (c_parser_peek_token (parser)->type) { case CPP_OPEN_BRACE: @@ -6246,7 +6247,8 @@ c_parser_statement_after_labels (c_parse c_parser_consume_token (parser); break; case CPP_PRAGMA: - c_parser_pragma (parser, pragma_stmt, if_p); + if (!c_parser_pragma (parser, pragma_stmt, if_p)) + goto restart; break; default: expr_stmt: @@ -12346,7 +12348,7 @@ c_parser_pragma (c_parser *parser, enum "%<#pragma %s%> may only be used in compound " "statements", construct); c_parser_skip_until_found (parser, CPP_PRAGMA_EOL, NULL); - return false; + return true; } goto bad_stmt; } @@ -12437,8 +12439,7 @@ c_parser_pragma (c_parser *parser, enum return false; case PRAGMA_OMP_CANCELLATION_POINT: - c_parser_omp_cancellation_point (parser, context); - return false; + return c_parser_omp_cancellation_point (parser, context); case PRAGMA_OMP_THREADPRIVATE: c_parser_omp_threadprivate (parser); @@ -12466,8 +12467,7 @@ c_parser_pragma (c_parser *parser, enum return false; case PRAGMA_OMP_DECLARE: - c_parser_omp_declare (parser, context); - return false; + return c_parser_omp_declare (parser, context); case PRAGMA_OMP_REQUIRES: if (context != pragma_external) @@ -12505,7 +12505,7 @@ c_parser_pragma (c_parser *parser, enum else c_parser_do_statement (parser, ivdep, unroll); } - return false; + return true; case PRAGMA_UNROLL: { @@ -12529,7 +12529,7 @@ c_parser_pragma (c_parser *parser, enum else c_parser_do_statement (parser, ivdep, unroll); } - return false; + return true; case PRAGMA_GCC_PCH_PREPROCESS: c_parser_error (parser, "%<#pragma GCC pch_preprocess%> must be first"); @@ -19125,7 +19125,7 @@ c_parser_omp_ordered (c_parser *parser, "%<#pragma omp ordered%> with %<depend%> clause may " "only be used in compound statements"); c_parser_skip_to_pragma_eol (parser, false); - return false; + return true; } tree clauses @@ -19655,7 +19655,7 @@ c_parser_omp_cancel (c_parser *parser) | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_SECTIONS) \ | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_TASKGROUP)) -static void +static bool c_parser_omp_cancellation_point (c_parser *parser, enum pragma_context context) { location_t loc = c_parser_peek_token (parser)->location; @@ -19676,7 +19676,7 @@ c_parser_omp_cancellation_point (c_parse { c_parser_error (parser, "expected %<point%>"); c_parser_skip_to_pragma_eol (parser); - return; + return false; } if (context != pragma_compound) @@ -19688,7 +19688,7 @@ c_parser_omp_cancellation_point (c_parse else c_parser_error (parser, "expected declaration specifiers"); c_parser_skip_to_pragma_eol (parser, false); - return; + return true; } clauses @@ -19696,6 +19696,7 @@ c_parser_omp_cancellation_point (c_parse "#pragma omp cancellation point"); c_finish_omp_cancellation_point (loc, clauses); + return true; } /* OpenMP 4.0: @@ -19981,7 +19982,7 @@ c_parser_omp_target_update (location_t l error_at (loc, "%<#pragma %s%> may only be used in compound statements", "omp target update"); c_parser_skip_to_pragma_eol (parser, false); - return false; + return true; } tree clauses @@ -20014,7 +20015,7 @@ c_parser_omp_target_update (location_t l | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_DEPEND) \ | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_NOWAIT)) -static tree +static bool c_parser_omp_target_enter_data (location_t loc, c_parser *parser, enum pragma_context context) { @@ -20032,7 +20033,7 @@ c_parser_omp_target_enter_data (location { c_parser_error (parser, "expected %<data%>"); c_parser_skip_to_pragma_eol (parser); - return NULL_TREE; + return false; } if (context == pragma_stmt) @@ -20040,7 +20041,7 @@ c_parser_omp_target_enter_data (location error_at (loc, "%<#pragma %s%> may only be used in compound statements", "omp target enter data"); c_parser_skip_to_pragma_eol (parser, false); - return NULL_TREE; + return true; } tree clauses @@ -20079,7 +20080,7 @@ c_parser_omp_target_enter_data (location error_at (loc, "%<#pragma omp target enter data%> must contain at least " "one %<map%> clause"); - return NULL_TREE; + return true; } tree stmt = make_node (OMP_TARGET_ENTER_DATA); @@ -20087,7 +20088,7 @@ c_parser_omp_target_enter_data (location OMP_TARGET_ENTER_DATA_CLAUSES (stmt) = clauses; SET_EXPR_LOCATION (stmt, loc); add_stmt (stmt); - return stmt; + return true; } /* OpenMP 4.5: @@ -20100,7 +20101,7 @@ c_parser_omp_target_enter_data (location | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_DEPEND) \ | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_NOWAIT)) -static tree +static bool c_parser_omp_target_exit_data (location_t loc, c_parser *parser, enum pragma_context context) { @@ -20118,7 +20119,7 @@ c_parser_omp_target_exit_data (location_ { c_parser_error (parser, "expected %<data%>"); c_parser_skip_to_pragma_eol (parser); - return NULL_TREE; + return false; } if (context == pragma_stmt) @@ -20126,7 +20127,7 @@ c_parser_omp_target_exit_data (location_ error_at (loc, "%<#pragma %s%> may only be used in compound statements", "omp target exit data"); c_parser_skip_to_pragma_eol (parser, false); - return NULL_TREE; + return true; } tree clauses @@ -20167,7 +20168,7 @@ c_parser_omp_target_exit_data (location_ error_at (loc, "%<#pragma omp target exit data%> must contain at least one " "%<map%> clause"); - return NULL_TREE; + return true; } tree stmt = make_node (OMP_TARGET_EXIT_DATA); @@ -20175,7 +20176,7 @@ c_parser_omp_target_exit_data (location_ OMP_TARGET_EXIT_DATA_CLAUSES (stmt) = clauses; SET_EXPR_LOCATION (stmt, loc); add_stmt (stmt); - return stmt; + return true; } /* OpenMP 4.0: @@ -20333,14 +20334,12 @@ c_parser_omp_target (c_parser *parser, e else if (strcmp (p, "enter") == 0) { c_parser_consume_token (parser); - c_parser_omp_target_enter_data (loc, parser, context); - return false; + return c_parser_omp_target_enter_data (loc, parser, context); } else if (strcmp (p, "exit") == 0) { c_parser_consume_token (parser); - c_parser_omp_target_exit_data (loc, parser, context); - return false; + return c_parser_omp_target_exit_data (loc, parser, context); } else if (strcmp (p, "update") == 0) { @@ -21599,7 +21598,7 @@ c_parser_omp_declare_reduction (c_parser OpenMP 5.0 #pragma omp declare variant (identifier) match (context-selector) */ -static void +static bool c_parser_omp_declare (c_parser *parser, enum pragma_context context) { c_parser_consume_pragma (parser); @@ -21611,37 +21610,38 @@ c_parser_omp_declare (c_parser *parser, /* c_parser_consume_token (parser); done in c_parser_omp_declare_simd. */ c_parser_omp_declare_simd (parser, context); - return; + return true; } if (strcmp (p, "reduction") == 0) { c_parser_consume_token (parser); c_parser_omp_declare_reduction (parser, context); - return; + return false; } if (!flag_openmp) /* flag_openmp_simd */ { c_parser_skip_to_pragma_eol (parser, false); - return; + return false; } if (strcmp (p, "target") == 0) { c_parser_consume_token (parser); c_parser_omp_declare_target (parser); - return; + return false; } if (strcmp (p, "variant") == 0) { /* c_parser_consume_token (parser); done in c_parser_omp_declare_simd. */ c_parser_omp_declare_simd (parser, context); - return; + return true; } } c_parser_error (parser, "expected %<simd%>, %<reduction%>, " "%<target%> or %<variant%>"); c_parser_skip_to_pragma_eol (parser); + return false; } /* OpenMP 5.0 --- gcc/cp/parser.c.jj 2021-08-16 23:11:24.951183952 +0200 +++ gcc/cp/parser.c 2021-08-17 17:25:31.560858826 +0200 @@ -42132,7 +42132,7 @@ cp_parser_omp_ordered (cp_parser *parser "%<depend%> clause may only be used in compound " "statements"); cp_parser_skip_to_pragma_eol (parser, pragma_tok); - return false; + return true; } tree clauses = cp_parser_omp_all_clauses (parser, @@ -42656,7 +42656,7 @@ cp_parser_omp_cancel (cp_parser *parser, | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_SECTIONS) \ | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_TASKGROUP)) -static void +static bool cp_parser_omp_cancellation_point (cp_parser *parser, cp_token *pragma_tok, enum pragma_context context) { @@ -42678,7 +42678,7 @@ cp_parser_omp_cancellation_point (cp_par { cp_parser_error (parser, "expected %<point%>"); cp_parser_skip_to_pragma_eol (parser, pragma_tok); - return; + return false; } if (context != pragma_compound) @@ -42690,7 +42690,7 @@ cp_parser_omp_cancellation_point (cp_par else cp_parser_error (parser, "expected declaration specifiers"); cp_parser_skip_to_pragma_eol (parser, pragma_tok); - return; + return true; } clauses = cp_parser_omp_all_clauses (parser, @@ -42698,6 +42698,7 @@ cp_parser_omp_cancellation_point (cp_par "#pragma omp cancellation point", pragma_tok); finish_omp_cancellation_point (clauses); + return true; } /* OpenMP 4.0: @@ -42993,7 +42994,7 @@ cp_parser_omp_target_data (cp_parser *pa | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_DEPEND) \ | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_NOWAIT)) -static tree +static bool cp_parser_omp_target_enter_data (cp_parser *parser, cp_token *pragma_tok, enum pragma_context context) { @@ -43013,7 +43014,7 @@ cp_parser_omp_target_enter_data (cp_pars { cp_parser_error (parser, "expected %<data%>"); cp_parser_skip_to_pragma_eol (parser, pragma_tok); - return NULL_TREE; + return false; } if (context == pragma_stmt) @@ -43022,7 +43023,7 @@ cp_parser_omp_target_enter_data (cp_pars "%<#pragma %s%> may only be used in compound statements", "omp target enter data"); cp_parser_skip_to_pragma_eol (parser, pragma_tok); - return NULL_TREE; + return true; } tree clauses @@ -43062,14 +43063,15 @@ cp_parser_omp_target_enter_data (cp_pars error_at (pragma_tok->location, "%<#pragma omp target enter data%> must contain at least " "one %<map%> clause"); - return NULL_TREE; + return true; } tree stmt = make_node (OMP_TARGET_ENTER_DATA); TREE_TYPE (stmt) = void_type_node; OMP_TARGET_ENTER_DATA_CLAUSES (stmt) = clauses; SET_EXPR_LOCATION (stmt, pragma_tok->location); - return add_stmt (stmt); + add_stmt (stmt); + return true; } /* OpenMP 4.5: @@ -43083,7 +43085,7 @@ cp_parser_omp_target_enter_data (cp_pars | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_DEPEND) \ | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_NOWAIT)) -static tree +static bool cp_parser_omp_target_exit_data (cp_parser *parser, cp_token *pragma_tok, enum pragma_context context) { @@ -43103,7 +43105,7 @@ cp_parser_omp_target_exit_data (cp_parse { cp_parser_error (parser, "expected %<data%>"); cp_parser_skip_to_pragma_eol (parser, pragma_tok); - return NULL_TREE; + return false; } if (context == pragma_stmt) @@ -43112,7 +43114,7 @@ cp_parser_omp_target_exit_data (cp_parse "%<#pragma %s%> may only be used in compound statements", "omp target exit data"); cp_parser_skip_to_pragma_eol (parser, pragma_tok); - return NULL_TREE; + return true; } tree clauses @@ -43154,14 +43156,15 @@ cp_parser_omp_target_exit_data (cp_parse error_at (pragma_tok->location, "%<#pragma omp target exit data%> must contain at least " "one %<map%> clause"); - return NULL_TREE; + return true; } tree stmt = make_node (OMP_TARGET_EXIT_DATA); TREE_TYPE (stmt) = void_type_node; OMP_TARGET_EXIT_DATA_CLAUSES (stmt) = clauses; SET_EXPR_LOCATION (stmt, pragma_tok->location); - return add_stmt (stmt); + add_stmt (stmt); + return true; } /* OpenMP 4.0: @@ -43185,7 +43188,7 @@ cp_parser_omp_target_update (cp_parser * "%<#pragma %s%> may only be used in compound statements", "omp target update"); cp_parser_skip_to_pragma_eol (parser, pragma_tok); - return false; + return true; } tree clauses @@ -43197,7 +43200,7 @@ cp_parser_omp_target_update (cp_parser * error_at (pragma_tok->location, "%<#pragma omp target update%> must contain at least one " "%<from%> or %<to%> clauses"); - return false; + return true; } tree stmt = make_node (OMP_TARGET_UPDATE); @@ -43205,7 +43208,7 @@ cp_parser_omp_target_update (cp_parser * OMP_TARGET_UPDATE_CLAUSES (stmt) = clauses; SET_EXPR_LOCATION (stmt, pragma_tok->location); add_stmt (stmt); - return false; + return true; } /* OpenMP 4.0: @@ -43359,14 +43362,12 @@ cp_parser_omp_target (cp_parser *parser, else if (strcmp (p, "enter") == 0) { cp_lexer_consume_token (parser->lexer); - cp_parser_omp_target_enter_data (parser, pragma_tok, context); - return false; + return cp_parser_omp_target_enter_data (parser, pragma_tok, context); } else if (strcmp (p, "exit") == 0) { cp_lexer_consume_token (parser->lexer); - cp_parser_omp_target_exit_data (parser, pragma_tok, context); - return false; + return cp_parser_omp_target_exit_data (parser, pragma_tok, context); } else if (strcmp (p, "update") == 0) { @@ -46427,7 +46428,7 @@ cp_parser_pragma (cp_parser *parser, enu cp_token *pragma_tok; unsigned int id; tree stmt; - bool ret; + bool ret = false; pragma_tok = cp_lexer_consume_token (parser->lexer); gcc_assert (pragma_tok->type == CPP_PRAGMA); @@ -46452,6 +46453,7 @@ cp_parser_pragma (cp_parser *parser, enu case pragma_stmt: error_at (pragma_tok->location, "%<#pragma %s%> may only be " "used in compound statements", "omp barrier"); + ret = true; break; default: goto bad_stmt; @@ -46467,6 +46469,7 @@ cp_parser_pragma (cp_parser *parser, enu case pragma_stmt: error_at (pragma_tok->location, "%<#pragma %s%> may only be " "used in compound statements", "omp depobj"); + ret = true; break; default: goto bad_stmt; @@ -46482,6 +46485,7 @@ cp_parser_pragma (cp_parser *parser, enu case pragma_stmt: error_at (pragma_tok->location, "%<#pragma %s%> may only be " "used in compound statements", "omp flush"); + ret = true; break; default: goto bad_stmt; @@ -46498,6 +46502,7 @@ cp_parser_pragma (cp_parser *parser, enu error_at (pragma_tok->location, "%<#pragma %s%> may only be used in compound statements", "omp taskwait"); + ret = true; break; default: goto bad_stmt; @@ -46514,6 +46519,7 @@ cp_parser_pragma (cp_parser *parser, enu error_at (pragma_tok->location, "%<#pragma %s%> may only be used in compound statements", "omp taskyield"); + ret = true; break; default: goto bad_stmt; @@ -46530,6 +46536,7 @@ cp_parser_pragma (cp_parser *parser, enu error_at (pragma_tok->location, "%<#pragma %s%> may only be used in compound statements", "omp cancel"); + ret = true; break; default: goto bad_stmt; @@ -46537,8 +46544,7 @@ cp_parser_pragma (cp_parser *parser, enu break; case PRAGMA_OMP_CANCELLATION_POINT: - cp_parser_omp_cancellation_point (parser, pragma_tok, context); - return false; + return cp_parser_omp_cancellation_point (parser, pragma_tok, context); case PRAGMA_OMP_THREADPRIVATE: cp_parser_omp_threadprivate (parser, pragma_tok); @@ -46557,6 +46563,7 @@ cp_parser_pragma (cp_parser *parser, enu error_at (pragma_tok->location, "%<#pragma %s%> may only be used in compound statements", "acc enter data"); + ret = true; break; } else if (context != pragma_compound) @@ -46570,6 +46577,7 @@ cp_parser_pragma (cp_parser *parser, enu error_at (pragma_tok->location, "%<#pragma %s%> may only be used in compound statements", "acc exit data"); + ret = true; break; } else if (context != pragma_compound) @@ -46582,6 +46590,7 @@ cp_parser_pragma (cp_parser *parser, enu { error_at (pragma_tok->location, "%<#pragma acc routine%> must be at file scope"); + ret = true; break; } cp_parser_oacc_routine (parser, pragma_tok, context); @@ -46593,6 +46602,7 @@ cp_parser_pragma (cp_parser *parser, enu error_at (pragma_tok->location, "%<#pragma %s%> may only be used in compound statements", "acc update"); + ret = true; break; } else if (context != pragma_compound) @@ -46606,6 +46616,7 @@ cp_parser_pragma (cp_parser *parser, enu error_at (pragma_tok->location, "%<#pragma %s%> may only be used in compound statements", "acc wait"); + ret = true; break; } else if (context != pragma_compound) @@ -46652,6 +46663,7 @@ cp_parser_pragma (cp_parser *parser, enu error_at (pragma_tok->location, "%<#pragma omp requires%> may only be used at file or " "namespace scope"); + ret = true; break; } return cp_parser_omp_requires (parser, pragma_tok); @@ -46764,7 +46776,7 @@ cp_parser_pragma (cp_parser *parser, enu } cp_parser_skip_to_pragma_eol (parser, pragma_tok); - return false; + return ret; } /* The interface the pragma parsers have to the lexer. */ --- gcc/testsuite/c-c++-common/gomp/pr63326.c.jj 2020-01-14 20:02:46.662611646 +0100 +++ gcc/testsuite/c-c++-common/gomp/pr63326.c 2021-08-17 17:43:05.624354118 +0200 @@ -156,64 +156,64 @@ f4 (int x) { do #pragma omp barrier /* { dg-error "may only be used in compound statements" } */ - while (0); /* { dg-error "before" "" { target c++ } } */ - } /* { dg-error "before" "" { target c++ } } */ + while (0); + } { do #pragma omp flush /* { dg-error "may only be used in compound statements" } */ - while (0); /* { dg-error "before" "" { target c++ } } */ - } /* { dg-error "before" "" { target c++ } } */ + while (0); + } { do #pragma omp taskwait /* { dg-error "may only be used in compound statements" } */ - while (0); /* { dg-error "before" "" { target c++ } } */ - } /* { dg-error "before" "" { target c++ } } */ + while (0); + } { do #pragma omp taskyield /* { dg-error "may only be used in compound statements" } */ - while (0); /* { dg-error "before" "" { target c++ } } */ - } /* { dg-error "before" "" { target c++ } } */ + while (0); + } #pragma omp parallel { do #pragma omp cancel parallel /* { dg-error "may only be used in compound statements" } */ - while (0); /* { dg-error "before" "" { target c++ } } */ - } /* { dg-error "before" "" { target c++ } } */ + while (0); + } #pragma omp parallel { do #pragma omp cancellation point parallel /* { dg-error "may only be used in compound statements" } */ - while (0); /* { dg-error "before" "" { target c++ } } */ - } /* { dg-error "before" "" { target c++ } } */ + while (0); + } #pragma omp for ordered(1) for (i = 0; i < 16; i++) { { do #pragma omp ordered depend(source) /* { dg-error "may only be used in compound statements" } */ - while (0); /* { dg-error "before" "" { target c++ } } */ - } /* { dg-error "before" "" { target c++ } } */ + while (0); + } { do #pragma omp ordered depend(sink: i-1) /* { dg-error "may only be used in compound statements" } */ - while (0); /* { dg-error "before" "" { target c++ } } */ - } /* { dg-error "before" "" { target c++ } } */ + while (0); + } } { do #pragma omp target enter data map(to:i) /* { dg-error "may only be used in compound statements" } */ - while (0); /* { dg-error "before" "" { target c++ } } */ - } /* { dg-error "before" "" { target c++ } } */ + while (0); + } { do #pragma omp target update to(i) /* { dg-error "may only be used in compound statements" } */ - while (0); /* { dg-error "before" "" { target c++ } } */ - } /* { dg-error "before" "" { target c++ } } */ + while (0); + } { do #pragma omp target exit data map(from:i) /* { dg-error "may only be used in compound statements" } */ - while (0); /* { dg-error "before" "" { target c++ } } */ - } /* { dg-error "before" "" { target c++ } } */ + while (0); + } } void --- gcc/testsuite/g++.dg/gomp/attrs-7.C.jj 2021-07-26 09:13:37.132731100 +0200 +++ gcc/testsuite/g++.dg/gomp/attrs-7.C 2021-08-17 17:44:11.426447671 +0200 @@ -11,8 +11,7 @@ foo () // { dg-error "#pragma omp section" "" { target *-*-* } .-1 } // { dg-error "#pragma omp flush" "" { target *-*-* } .-2 } [[omp::sequence (directive (flush), omp::directive (section))]]; // { dg-error "must be the only specified attribute on a statement" } - // { dg-error "#pragma omp section" "" { target *-*-* } .-1 } - // { dg-error "#pragma omp flush" "" { target *-*-* } .-2 } + // { dg-error "#pragma omp flush" "" { target *-*-* } .-1 } [[gnu::cold, omp::directive (section)]]; // { dg-error "must be the only specified attribute on a statement" } // { dg-error "#pragma omp section" "" { target *-*-* } .-1 } [[omp::directive (section)]] [[gnu::cold]]; // { dg-error "must be the only specified attribute on a statement" } --- gcc/testsuite/g++.dg/gomp/barrier-2.C.jj 2020-01-14 20:02:46.847608875 +0100 +++ gcc/testsuite/g++.dg/gomp/barrier-2.C 2021-08-17 17:52:24.029661902 +0200 @@ -9,4 +9,4 @@ void f3(bool p) { if (p) #pragma omp barrier // { dg-error "compound statements" } -} // { dg-error "" } +} --- gcc/testsuite/gcc.dg/gomp/declare-simd-5.c.jj 2020-11-08 23:07:45.317963554 +0100 +++ gcc/testsuite/gcc.dg/gomp/declare-simd-5.c 2021-08-17 18:08:43.214209864 +0200 @@ -15,7 +15,7 @@ f1 (int x) lab: #pragma omp declare simd simdlen (8) aligned (b : 8 * sizeof (int)) extern int f5 (int a, int *b, int c); /* { dg-error "must be followed by function declaration or definition" } */ - x++; /* { dg-error "a label can only be part of a statement and a declaration is not a statement" "" { target *-*-* } .-1 } */ + x++; } return x; } --- gcc/testsuite/gcc.dg/gomp/barrier-2.c.jj 2020-11-08 23:07:45.317963554 +0100 +++ gcc/testsuite/gcc.dg/gomp/barrier-2.c 2021-08-17 17:51:35.419331529 +0200 @@ -16,8 +16,7 @@ void f1(void) void f2(void) { - label: /* { dg-error "label at end of compound statement" } */ - /* { dg-warning "defined but not used" "" { target *-*-* } .-1 } */ + label: /* { dg-warning "defined but not used" } */ #pragma omp barrier /* { dg-error "may only be used in compound statements" } */ } --- gcc/testsuite/gcc.dg/gomp/declare-variant-2.c.jj 2020-11-08 23:07:45.317963554 +0100 +++ gcc/testsuite/gcc.dg/gomp/declare-variant-2.c 2021-08-17 18:08:58.806995680 +0200 @@ -17,7 +17,7 @@ f1 (int x) lab: #pragma omp declare variant (fn0) match (user={condition(0)}) extern int f5 (int a, int *b, int c); /* { dg-error "must be followed by function declaration or definition" } */ - x++; /* { dg-error "a label can only be part of a statement and a declaration is not a statement" "" { target *-*-* } .-1 } */ + x++; } return x; } Jakub