Hi! I've backported following 12 commits from trunk to 8.4, bootstrapped/regtested on x86_64-linux and i686-linux and committed to gcc-8-branch.
Jakub
2019-08-29 Jakub Jelinek <ja...@redhat.com> Backported from mainline 2019-04-19 Jakub Jelinek <ja...@redhat.com> PR middle-end/90139 * tree-outof-ssa.c (get_temp_reg): If reg_mode is BLKmode, return assign_temp instead of gen_reg_rtx. * gcc.c-torture/compile/pr90139.c: New test. --- gcc/tree-outof-ssa.c (revision 270456) +++ gcc/tree-outof-ssa.c (revision 270457) @@ -653,6 +653,8 @@ get_temp_reg (tree name) tree type = TREE_TYPE (name); int unsignedp; machine_mode reg_mode = promote_ssa_mode (name, &unsignedp); + if (reg_mode == BLKmode) + return assign_temp (type, 0, 0); rtx x = gen_reg_rtx (reg_mode); if (POINTER_TYPE_P (type)) mark_reg_pointer (x, TYPE_ALIGN (TREE_TYPE (type))); --- gcc/testsuite/gcc.c-torture/compile/pr90139.c (nonexistent) +++ gcc/testsuite/gcc.c-torture/compile/pr90139.c (revision 270457) @@ -0,0 +1,20 @@ +/* PR middle-end/90139 */ + +typedef float __attribute__((vector_size (sizeof (float)))) V; +void bar (int, V *); +int l; + +void +foo (void) +{ + V n, b, o; + while (1) + switch (l) + { + case 0: + o = n; + n = b; + b = o; + bar (1, &o); + } +}
2019-08-29 Jakub Jelinek <ja...@redhat.com> Backported from mainline 2019-04-26 Jakub Jelinek <ja...@redhat.com> PR debug/90197 * c-tree.h (c_finish_loop): Add 2 further location_t arguments. * c-parser.c (c_parser_while_statement): Adjust c_finish_loop caller. (c_parser_do_statement): Likewise. (c_parser_for_statement): Likewise. Formatting fixes. * c-typeck.c (c_finish_loop): Add COND_LOCUS and INCR_LOCUS arguments, emit DEBUG_BEGIN_STMTs if needed. --- gcc/c/c-parser.c (revision 271347) +++ gcc/c/c-parser.c (revision 271348) @@ -6001,7 +6001,8 @@ c_parser_while_statement (c_parser *pars location_t loc_after_labels; bool open_brace = c_parser_next_token_is (parser, CPP_OPEN_BRACE); body = c_parser_c99_block_statement (parser, if_p, &loc_after_labels); - c_finish_loop (loc, cond, NULL, body, c_break_label, c_cont_label, true); + c_finish_loop (loc, loc, cond, UNKNOWN_LOCATION, NULL, body, + c_break_label, c_cont_label, true); add_stmt (c_end_compound_stmt (loc, block, flag_isoc99)); c_parser_maybe_reclassify_token (parser); @@ -6046,6 +6047,7 @@ c_parser_do_statement (c_parser *parser, c_break_label = save_break; new_cont = c_cont_label; c_cont_label = save_cont; + location_t cond_loc = c_parser_peek_token (parser)->location; cond = c_parser_paren_condition (parser); if (ivdep && cond != error_mark_node) cond = build3 (ANNOTATE_EXPR, TREE_TYPE (cond), cond, @@ -6059,7 +6061,8 @@ c_parser_do_statement (c_parser *parser, build_int_cst (integer_type_node, unroll)); if (!c_parser_require (parser, CPP_SEMICOLON, "expected %<;%>")) c_parser_skip_to_end_of_block_or_statement (parser); - c_finish_loop (loc, cond, NULL, body, new_break, new_cont, false); + c_finish_loop (loc, cond_loc, cond, UNKNOWN_LOCATION, NULL, body, + new_break, new_cont, false); add_stmt (c_end_compound_stmt (loc, block, flag_isoc99)); } @@ -6132,7 +6135,9 @@ c_parser_for_statement (c_parser *parser /* Silence the bogus uninitialized warning. */ tree collection_expression = NULL; location_t loc = c_parser_peek_token (parser)->location; - location_t for_loc = c_parser_peek_token (parser)->location; + location_t for_loc = loc; + location_t cond_loc = UNKNOWN_LOCATION; + location_t incr_loc = UNKNOWN_LOCATION; bool is_foreach_statement = false; gcc_assert (c_parser_next_token_is_keyword (parser, RID_FOR)); token_indent_info for_tinfo @@ -6166,7 +6171,8 @@ c_parser_for_statement (c_parser *parser c_parser_consume_token (parser); is_foreach_statement = true; if (check_for_loop_decls (for_loc, true) == NULL_TREE) - c_parser_error (parser, "multiple iterating variables in fast enumeration"); + c_parser_error (parser, "multiple iterating variables in " + "fast enumeration"); } else check_for_loop_decls (for_loc, flag_isoc99); @@ -6196,7 +6202,8 @@ c_parser_for_statement (c_parser *parser c_parser_consume_token (parser); is_foreach_statement = true; if (check_for_loop_decls (for_loc, true) == NULL_TREE) - c_parser_error (parser, "multiple iterating variables in fast enumeration"); + c_parser_error (parser, "multiple iterating variables in " + "fast enumeration"); } else check_for_loop_decls (for_loc, flag_isoc99); @@ -6218,15 +6225,18 @@ c_parser_for_statement (c_parser *parser c_parser_consume_token (parser); is_foreach_statement = true; if (! lvalue_p (init_expression)) - c_parser_error (parser, "invalid iterating variable in fast enumeration"); - object_expression = c_fully_fold (init_expression, false, NULL); + c_parser_error (parser, "invalid iterating variable in " + "fast enumeration"); + object_expression + = c_fully_fold (init_expression, false, NULL); } else { ce = convert_lvalue_to_rvalue (loc, ce, true, false); init_expression = ce.value; c_finish_expr_stmt (loc, init_expression); - c_parser_skip_until_found (parser, CPP_SEMICOLON, "expected %<;%>"); + c_parser_skip_until_found (parser, CPP_SEMICOLON, + "expected %<;%>"); } } } @@ -6235,18 +6245,19 @@ c_parser_for_statement (c_parser *parser gcc_assert (!parser->objc_could_be_foreach_context); if (!is_foreach_statement) { + cond_loc = c_parser_peek_token (parser)->location; if (c_parser_next_token_is (parser, CPP_SEMICOLON)) { if (ivdep) { - c_parser_error (parser, "missing loop condition in loop with " - "%<GCC ivdep%> pragma"); + c_parser_error (parser, "missing loop condition in loop " + "with %<GCC ivdep%> pragma"); cond = error_mark_node; } else if (unroll) { - c_parser_error (parser, "missing loop condition in loop with " - "%<GCC unroll%> pragma"); + c_parser_error (parser, "missing loop condition in loop " + "with %<GCC unroll%> pragma"); cond = error_mark_node; } else @@ -6275,11 +6286,13 @@ c_parser_for_statement (c_parser *parser /* Parse the increment expression (the third expression in a for-statement). In the case of a foreach-statement, this is the expression that follows the 'in'. */ + loc = incr_loc = c_parser_peek_token (parser)->location; if (c_parser_next_token_is (parser, CPP_CLOSE_PAREN)) { if (is_foreach_statement) { - c_parser_error (parser, "missing collection in fast enumeration"); + c_parser_error (parser, + "missing collection in fast enumeration"); collection_expression = error_mark_node; } else @@ -6288,8 +6301,8 @@ c_parser_for_statement (c_parser *parser else { if (is_foreach_statement) - collection_expression = c_fully_fold (c_parser_expression (parser).value, - false, NULL); + collection_expression + = c_fully_fold (c_parser_expression (parser).value, false, NULL); else { struct c_expr ce = c_parser_expression (parser); @@ -6312,10 +6325,14 @@ c_parser_for_statement (c_parser *parser body = c_parser_c99_block_statement (parser, if_p, &loc_after_labels); if (is_foreach_statement) - objc_finish_foreach_loop (loc, object_expression, collection_expression, body, c_break_label, c_cont_label); + objc_finish_foreach_loop (for_loc, object_expression, + collection_expression, body, c_break_label, + c_cont_label); else - c_finish_loop (loc, cond, incr, body, c_break_label, c_cont_label, true); - add_stmt (c_end_compound_stmt (loc, block, flag_isoc99 || c_dialect_objc ())); + c_finish_loop (for_loc, cond_loc, cond, incr_loc, incr, body, + c_break_label, c_cont_label, true); + add_stmt (c_end_compound_stmt (for_loc, block, + flag_isoc99 || c_dialect_objc ())); c_parser_maybe_reclassify_token (parser); token_indent_info next_tinfo --- gcc/c/c-typeck.c (revision 271347) +++ gcc/c/c-typeck.c (revision 271348) @@ -10858,11 +10858,14 @@ c_finish_if_stmt (location_t if_locus, t the beginning of the loop. COND is the loop condition. COND_IS_FIRST is false for DO loops. INCR is the FOR increment expression. BODY is the statement controlled by the loop. BLAB is the break label. CLAB is - the continue label. Everything is allowed to be NULL. */ + the continue label. Everything is allowed to be NULL. + COND_LOCUS is the location of the loop condition, INCR_LOCUS is the + location of the FOR increment expression. */ void -c_finish_loop (location_t start_locus, tree cond, tree incr, tree body, - tree blab, tree clab, bool cond_is_first) +c_finish_loop (location_t start_locus, location_t cond_locus, tree cond, + location_t incr_locus, tree incr, tree body, tree blab, + tree clab, bool cond_is_first) { tree entry = NULL, exit = NULL, t; @@ -10904,12 +10907,8 @@ c_finish_loop (location_t start_locus, t } t = build_and_jump (&blab); - if (cond_is_first) - exit = fold_build3_loc (start_locus, - COND_EXPR, void_type_node, cond, exit, t); - else - exit = fold_build3_loc (input_location, - COND_EXPR, void_type_node, cond, exit, t); + exit = fold_build3_loc (cond_is_first ? start_locus : input_location, + COND_EXPR, void_type_node, cond, exit, t); } else { @@ -10930,9 +10929,23 @@ c_finish_loop (location_t start_locus, t if (clab) add_stmt (build1 (LABEL_EXPR, void_type_node, clab)); if (incr) - add_stmt (incr); + { + if (MAY_HAVE_DEBUG_MARKER_STMTS && incr_locus != UNKNOWN_LOCATION) + { + t = build0 (DEBUG_BEGIN_STMT, void_type_node); + SET_EXPR_LOCATION (t, incr_locus); + add_stmt (t); + } + add_stmt (incr); + } if (entry) add_stmt (entry); + if (MAY_HAVE_DEBUG_MARKER_STMTS && cond_locus != UNKNOWN_LOCATION) + { + t = build0 (DEBUG_BEGIN_STMT, void_type_node); + SET_EXPR_LOCATION (t, cond_locus); + add_stmt (t); + } if (exit) add_stmt (exit); if (blab) --- gcc/c/c-tree.h (revision 271347) +++ gcc/c/c-tree.h (revision 271348) @@ -694,7 +694,8 @@ extern int c_types_compatible_p (tree, t extern tree c_begin_compound_stmt (bool); extern tree c_end_compound_stmt (location_t, tree, bool); extern void c_finish_if_stmt (location_t, tree, tree, tree); -extern void c_finish_loop (location_t, tree, tree, tree, tree, tree, bool); +extern void c_finish_loop (location_t, location_t, tree, location_t, tree, + tree, tree, tree, bool); extern tree c_begin_stmt_expr (void); extern tree c_finish_stmt_expr (location_t, tree); extern tree c_process_expr_stmt (location_t, tree);
2019-08-29 Jakub Jelinek <ja...@redhat.com> Backported from mainline 2019-05-10 Jakub Jelinek <ja...@redhat.com> PR pch/90326 cp/ * config-lang.in (gtfiles): Remove c-family/c-lex.c, add c-family/c-cppbuiltin.c. objc/ * config-lang.in (gtfiles): Add c-family/c-format.c. objcp/ * config-lang.in (gtfiles): Don't add c-family/c-cppbuiltin.c. testsuite/ * g++.dg/pch/pr90326.C: New test. * g++.dg/pch/pr90326.Hs: New file. --- gcc/cp/config-lang.in (revision 271349) +++ gcc/cp/config-lang.in (revision 271350) @@ -37,7 +37,7 @@ gtfiles="\ \$(srcdir)/c-family/c-pragma.h \$(srcdir)/cp/decl.h \ \$(srcdir)/cp/parser.h \ \$(srcdir)/c-family/c-common.c \$(srcdir)/c-family/c-format.c \ -\$(srcdir)/c-family/c-lex.c \$(srcdir)/c-family/c-pragma.c \ +\$(srcdir)/c-family/c-cppbuiltin.c \$(srcdir)/c-family/c-pragma.c \ \$(srcdir)/cp/call.c \$(srcdir)/cp/class.c \$(srcdir)/cp/constexpr.c \ \$(srcdir)/cp/cp-gimplify.c \ \$(srcdir)/cp/cp-lang.c \$(srcdir)/cp/cp-objcp-common.c \ --- gcc/objc/config-lang.in (revision 271349) +++ gcc/objc/config-lang.in (revision 271350) @@ -35,4 +35,4 @@ lang_requires="c" # Order is important. If you change this list, make sure you test # building without C++ as well; that is, remove the gcc/cp directory, # and build with --enable-languages=c,objc. -gtfiles="\$(srcdir)/objc/objc-map.h \$(srcdir)/c-family/c-objc.h \$(srcdir)/objc/objc-act.h \$(srcdir)/objc/objc-act.c \$(srcdir)/objc/objc-runtime-shared-support.c \$(srcdir)/objc/objc-gnu-runtime-abi-01.c \$(srcdir)/objc/objc-next-runtime-abi-01.c \$(srcdir)/objc/objc-next-runtime-abi-02.c \$(srcdir)/c/c-parser.h \$(srcdir)/c/c-parser.c \$(srcdir)/c/c-tree.h \$(srcdir)/c/c-decl.c \$(srcdir)/c/c-lang.h \$(srcdir)/c/c-objc-common.c \$(srcdir)/c-family/c-common.c \$(srcdir)/c-family/c-common.h \$(srcdir)/c-family/c-cppbuiltin.c \$(srcdir)/c-family/c-pragma.h \$(srcdir)/c-family/c-pragma.c" +gtfiles="\$(srcdir)/objc/objc-map.h \$(srcdir)/c-family/c-objc.h \$(srcdir)/objc/objc-act.h \$(srcdir)/objc/objc-act.c \$(srcdir)/objc/objc-runtime-shared-support.c \$(srcdir)/objc/objc-gnu-runtime-abi-01.c \$(srcdir)/objc/objc-next-runtime-abi-01.c \$(srcdir)/objc/objc-next-runtime-abi-02.c \$(srcdir)/c/c-parser.h \$(srcdir)/c/c-parser.c \$(srcdir)/c/c-tree.h \$(srcdir)/c/c-decl.c \$(srcdir)/c/c-lang.h \$(srcdir)/c/c-objc-common.c \$(srcdir)/c-family/c-common.c \$(srcdir)/c-family/c-common.h \$(srcdir)/c-family/c-cppbuiltin.c \$(srcdir)/c-family/c-pragma.h \$(srcdir)/c-family/c-pragma.c \$(srcdir)/c-family/c-format.c" --- gcc/objcp/config-lang.in (revision 271349) +++ gcc/objcp/config-lang.in (revision 271350) @@ -52,7 +52,6 @@ gtfiles="$(. $srcdir/cp/config-lang.in ; gtfiles="$gtfiles \ \$(srcdir)/objc/objc-act.h \ \$(srcdir)/objc/objc-map.h \ -\$(srcdir)/c-family/c-cppbuiltin.c \ \$(srcdir)/objc/objc-act.c \ \$(srcdir)/objc/objc-gnu-runtime-abi-01.c \ \$(srcdir)/objc/objc-next-runtime-abi-01.c \ --- gcc/testsuite/g++.dg/pch/pr90326.C (nonexistent) +++ gcc/testsuite/g++.dg/pch/pr90326.C (revision 271350) @@ -0,0 +1,9 @@ +#include "pr90326.H" + +int main() +{ + float f = __FLT_MAX__; + if (f == 0.0) + __builtin_abort (); + return 0; +} --- gcc/testsuite/g++.dg/pch/pr90326.Hs (nonexistent) +++ gcc/testsuite/g++.dg/pch/pr90326.Hs (revision 271350) @@ -0,0 +1 @@ +// empty
2019-08-29 Jakub Jelinek <ja...@redhat.com> Backported from mainline 2019-05-15 Jakub Jelinek <ja...@redhat.com> PR debug/90197 * cp-gimplify.c (genericize_cp_loop): Emit a DEBUG_BEGIN_STMT before the condition (or if missing or constant non-zero at the end of the loop. Emit a DEBUG_BEGIN_STMT before the increment expression if any. Don't call protected_set_expr_location on incr if it already has a location. --- gcc/cp/cp-gimplify.c (revision 271352) +++ gcc/cp/cp-gimplify.c (revision 271353) @@ -202,17 +202,26 @@ genericize_cp_loop (tree *stmt_p, locati tree blab, clab; tree exit = NULL; tree stmt_list = NULL; + tree debug_begin = NULL; blab = begin_bc_block (bc_break, start_locus); clab = begin_bc_block (bc_continue, start_locus); - protected_set_expr_location (incr, start_locus); + if (EXPR_LOCATION (incr) == UNKNOWN_LOCATION) + protected_set_expr_location (incr, start_locus); cp_walk_tree (&cond, cp_genericize_r, data, NULL); cp_walk_tree (&body, cp_genericize_r, data, NULL); cp_walk_tree (&incr, cp_genericize_r, data, NULL); *walk_subtrees = 0; + if (MAY_HAVE_DEBUG_MARKER_STMTS + && (!cond || !integer_zerop (cond))) + { + debug_begin = build0 (DEBUG_BEGIN_STMT, void_type_node); + SET_EXPR_LOCATION (debug_begin, EXPR_LOC_OR_LOC (cond, start_locus)); + } + if (cond && TREE_CODE (cond) != INTEGER_CST) { /* If COND is constant, don't bother building an exit. If it's false, @@ -225,10 +234,24 @@ genericize_cp_loop (tree *stmt_p, locati } if (exit && cond_is_first) - append_to_statement_list (exit, &stmt_list); + { + append_to_statement_list (debug_begin, &stmt_list); + debug_begin = NULL_TREE; + append_to_statement_list (exit, &stmt_list); + } append_to_statement_list (body, &stmt_list); finish_bc_block (&stmt_list, bc_continue, clab); - append_to_statement_list (incr, &stmt_list); + if (incr) + { + if (MAY_HAVE_DEBUG_MARKER_STMTS) + { + tree d = build0 (DEBUG_BEGIN_STMT, void_type_node); + SET_EXPR_LOCATION (d, EXPR_LOC_OR_LOC (incr, start_locus)); + append_to_statement_list (d, &stmt_list); + } + append_to_statement_list (incr, &stmt_list); + } + append_to_statement_list (debug_begin, &stmt_list); if (exit && !cond_is_first) append_to_statement_list (exit, &stmt_list);
2019-08-29 Jakub Jelinek <ja...@redhat.com> Backported from mainline 2019-05-24 Jakub Jelinek <ja...@redhat.com> PR libgomp/90585 * plugin/plugin-hsa.c (print_kernel_dispatch, run_kernel): Use PRIu64 macro instead of "lu". (release_kernel_dispatch): Likewise. Cast shadow->debug to uintptr_t before casting to void *. --- libgomp/plugin/plugin-hsa.c (revision 271956) +++ libgomp/plugin/plugin-hsa.c (revision 271957) @@ -1154,8 +1154,9 @@ create_single_kernel_dispatch (struct ke static void release_kernel_dispatch (struct GOMP_hsa_kernel_dispatch *shadow) { - HSA_DEBUG ("Released kernel dispatch: %p has value: %lu (%p)\n", shadow, - shadow->debug, (void *) shadow->debug); + HSA_DEBUG ("Released kernel dispatch: %p has value: %" PRIu64 " (%p)\n", + shadow, shadow->debug, + (void *) (uintptr_t) shadow->debug); hsa_fns.hsa_memory_free_fn (shadow->kernarg_address); @@ -1276,9 +1277,9 @@ print_kernel_dispatch (struct GOMP_hsa_k indent_stream (stderr, indent); fprintf (stderr, "kernarg_address: %p\n", dispatch->kernarg_address); indent_stream (stderr, indent); - fprintf (stderr, "object: %lu\n", dispatch->object); + fprintf (stderr, "object: %" PRIu64 "\n", dispatch->object); indent_stream (stderr, indent); - fprintf (stderr, "signal: %lu\n", dispatch->signal); + fprintf (stderr, "signal: %" PRIu64 "\n", dispatch->signal); indent_stream (stderr, indent); fprintf (stderr, "private_segment_size: %u\n", dispatch->private_segment_size); @@ -1286,7 +1287,7 @@ print_kernel_dispatch (struct GOMP_hsa_k fprintf (stderr, "group_segment_size: %u\n", dispatch->group_segment_size); indent_stream (stderr, indent); - fprintf (stderr, "children dispatches: %lu\n", + fprintf (stderr, "children dispatches: %" PRIu64 "\n", dispatch->kernel_dispatch_count); indent_stream (stderr, indent); fprintf (stderr, "omp_num_threads: %u\n", @@ -1594,7 +1595,7 @@ run_kernel (struct kernel_info *kernel, hsa_signal_t child_s; child_s.handle = shadow->children_dispatches[i]->signal; - HSA_DEBUG ("Waiting for children completion signal: %lu\n", + HSA_DEBUG ("Waiting for children completion signal: %" PRIu64 "\n", shadow->children_dispatches[i]->signal); hsa_fns.hsa_signal_load_acquire_fn (child_s); }
2019-08-29 Jakub Jelinek <ja...@redhat.com> Backported from mainline 2019-06-05 Jakub Jelinek <ja...@redhat.com> PR debug/90733 * var-tracking.c (vt_expand_loc_callback): Don't create raw subregs with VOIDmode inner operands. * gcc.dg/pr90733.c: New test. --- gcc/var-tracking.c (revision 271959) +++ gcc/var-tracking.c (revision 271960) @@ -8491,7 +8491,7 @@ vt_expand_loc_callback (rtx x, bitmap re /* Invalid SUBREGs are ok in debug info. ??? We could try alternate expansions for the VALUE as well. */ - if (!result) + if (!result && GET_MODE (subreg) != VOIDmode) result = gen_rtx_raw_SUBREG (GET_MODE (x), subreg, SUBREG_BYTE (x)); return result; --- gcc/testsuite/gcc.dg/pr90733.c (nonexistent) +++ gcc/testsuite/gcc.dg/pr90733.c (revision 271960) @@ -0,0 +1,22 @@ +/* PR debug/90733 */ +/* { dg-do compile } */ +/* { dg-options "-g -O2 -w" } */ + +struct S { unsigned a : 1; }; +union U { struct S b; _Complex unsigned c; }; + +union U +foo (union U d) +{ + union U e = d; + return e; +} + +int +bar (void) +{ + union U x, y; + x.c = x.b.a; + y = foo (x); + return x.c != y.c; +}
2019-08-29 Jakub Jelinek <ja...@redhat.com> Backported from mainline 2019-06-12 Jakub Jelinek <ja...@redhat.com> PR c/90760 * symtab.c (symtab_node::set_section): Allow being called on aliases as long as they aren't analyzed yet. * gcc.dg/pr90760.c: New test. --- gcc/symtab.c (revision 272799) +++ gcc/symtab.c (revision 272800) @@ -1553,7 +1553,7 @@ symtab_node::set_section (symtab_node *n void symtab_node::set_section (const char *section) { - gcc_assert (!this->alias); + gcc_assert (!this->alias || !this->analyzed); call_for_symbol_and_aliases (symtab_node::set_section, const_cast<char *>(section), true); } --- gcc/testsuite/gcc.dg/pr90760.c (nonexistent) +++ gcc/testsuite/gcc.dg/pr90760.c (revision 272800) @@ -0,0 +1,8 @@ +/* PR c/90760 */ +/* { dg-do compile } */ +/* { dg-require-named-sections "" } */ + +void bar (void) {} +void foo (void) __attribute__ ((alias ("bar"))); /* { dg-error "section of alias 'foo' must match section of its target" } */ +void foo (void) __attribute__ ((section ("baz"))); +void qux (void) __attribute__ ((alias ("bar"), section ("baz"))); /* { dg-error "section of alias 'qux' must match section of its target" } */
2019-08-29 Jakub Jelinek <ja...@redhat.com> Backported from mainline 2019-06-21 Jakub Jelinek <ja...@redhat.com> PR c++/90950 * semantics.c (finish_omp_clauses): Don't reject references to incomplete types if processing_template_decl. * g++.dg/gomp/lastprivate-1.C: New test. --- gcc/cp/semantics.c (revision 272800) +++ gcc/cp/semantics.c (revision 272801) @@ -7315,7 +7315,8 @@ finish_omp_clauses (tree clauses, enum c t = require_complete_type (t); if (t == error_mark_node) remove = true; - else if (TREE_CODE (TREE_TYPE (t)) == REFERENCE_TYPE + else if (!processing_template_decl + && TREE_CODE (TREE_TYPE (t)) == REFERENCE_TYPE && !complete_type_or_else (TREE_TYPE (TREE_TYPE (t)), t)) remove = true; } --- gcc/testsuite/g++.dg/gomp/lastprivate-1.C (nonexistent) +++ gcc/testsuite/g++.dg/gomp/lastprivate-1.C (revision 272801) @@ -0,0 +1,16 @@ +// PR c++/90950 +// { dg-do compile } + +template <typename T> +T +foo (void) +{ + T y = 0; + T &x = y; + #pragma omp parallel for lastprivate (x) + for (int i = 0; i < 8; ++i) + x = i; + return x; +} + +int a = foo<int> ();
2019-08-29 Jakub Jelinek <ja...@redhat.com> Backported from mainline 2019-06-25 Jakub Jelinek <ja...@redhat.com> PR sanitizer/90954 * c-omp.c (c_finish_omp_atomic): Allow tree_invariant_p in addition to SAVE_EXPR in first operand of a COMPOUND_EXPR. * c-c++-common/gomp/pr90954.c: New test. --- gcc/c-family/c-omp.c (revision 272801) +++ gcc/c-family/c-omp.c (revision 272802) @@ -305,7 +305,7 @@ c_finish_omp_atomic (location_t loc, enu if (TREE_CODE (x) == COMPOUND_EXPR) { pre = TREE_OPERAND (x, 0); - gcc_assert (TREE_CODE (pre) == SAVE_EXPR); + gcc_assert (TREE_CODE (pre) == SAVE_EXPR || tree_invariant_p (pre)); x = TREE_OPERAND (x, 1); } gcc_assert (TREE_CODE (x) == MODIFY_EXPR); --- gcc/testsuite/c-c++-common/gomp/pr90954.c (nonexistent) +++ gcc/testsuite/c-c++-common/gomp/pr90954.c (revision 272802) @@ -0,0 +1,27 @@ +/* PR sanitizer/90954 */ +/* { dg-do compile } */ +/* { dg-options "-fopenmp -fsanitize=undefined" } */ + +float v; +int i; + +void +foo (float x, float y) +{ + #pragma omp atomic + v += x / y; +} + +void +bar (int x, int y) +{ + #pragma omp atomic + i += x / y; +} + +void +baz (int x, int y) +{ + #pragma omp atomic + i *= (x << y); +}
2019-08-29 Jakub Jelinek <ja...@redhat.com> Backported from mainline 2019-07-04 Jakub Jelinek <ja...@redhat.com> PR rtl-optimization/90756 * explow.c (promote_ssa_mode): Always use TYPE_MODE, don't bypass it for VECTOR_TYPE_P. * gcc.dg/pr90756.c: New test. --- gcc/explow.c (revision 273475) +++ gcc/explow.c (revision 273476) @@ -892,16 +892,7 @@ promote_ssa_mode (const_tree name, int * tree type = TREE_TYPE (name); int unsignedp = TYPE_UNSIGNED (type); - machine_mode mode = TYPE_MODE (type); - - /* Bypass TYPE_MODE when it maps vector modes to BLKmode. */ - if (mode == BLKmode) - { - gcc_assert (VECTOR_TYPE_P (type)); - mode = type->type_common.mode; - } - - machine_mode pmode = promote_mode (type, mode, &unsignedp); + machine_mode pmode = promote_mode (type, TYPE_MODE (type), &unsignedp); if (punsignedp) *punsignedp = unsignedp; --- gcc/testsuite/gcc.dg/pr90756.c (nonexistent) +++ gcc/testsuite/gcc.dg/pr90756.c (revision 273476) @@ -0,0 +1,26 @@ +/* PR rtl-optimization/90756 */ +/* { dg-do compile } */ +/* { dg-options "-O2 -Wno-psabi" } */ +/* { dg-additional-options "-mno-sse" { target ia32 } } */ + +typedef float B __attribute__((vector_size(4 * sizeof (float)))); +typedef unsigned long long C __attribute__((vector_size(4 * sizeof (long long)))); +typedef short D __attribute__((vector_size(4 * sizeof (short)))); +B z; +void foo (C); +C bar (D); +B baz (); +D qux (B); + +void +quux (int x) +{ + B n = z, b = z; + while (1) + switch (x) + { + case 0: n = baz (); /* FALLTHRU */ + case 1: { B o = n; n = b; b = o; } /* FALLTHRU */ + case 2: { D u = qux (b); C v = bar (u); foo (v); } + } +}
2019-08-29 Jakub Jelinek <ja...@redhat.com> Backported from mainline 2019-07-04 Jakub Jelinek <ja...@redhat.com> PR middle-end/78884 * gimplify.c (struct gimplify_omp_ctx): Add add_safelen1 member. (gimplify_bind_expr): If seeing TREE_ADDRESSABLE VLA inside of simd loop body, set ctx->add_safelen1 instead of making it GOVD_PRIVATE. (gimplify_adjust_omp_clauses): Add safelen (1) clause if ctx->add_safelen1 is set. * gcc.dg/gomp/pr78884.c: New test. --- gcc/gimplify.c (revision 273476) +++ gcc/gimplify.c (revision 273477) @@ -191,6 +191,7 @@ struct gimplify_omp_ctx bool target_map_scalars_firstprivate; bool target_map_pointers_as_0len_arrays; bool target_firstprivatize_array_bases; + bool add_safelen1; }; static struct gimplify_ctx *gimplify_ctxp; @@ -1294,12 +1295,17 @@ gimplify_bind_expr (tree *expr_p, gimple || splay_tree_lookup (ctx->variables, (splay_tree_key) t) == NULL)) { + int flag = GOVD_LOCAL; if (ctx->region_type == ORT_SIMD && TREE_ADDRESSABLE (t) && !TREE_STATIC (t)) - omp_add_variable (ctx, t, GOVD_PRIVATE | GOVD_SEEN); - else - omp_add_variable (ctx, t, GOVD_LOCAL | GOVD_SEEN); + { + if (TREE_CODE (DECL_SIZE_UNIT (t)) != INTEGER_CST) + ctx->add_safelen1 = true; + else + flag = GOVD_PRIVATE; + } + omp_add_variable (ctx, t, flag | GOVD_SEEN); } DECL_SEEN_IN_BIND_EXPR_P (t) = 1; @@ -9026,6 +9032,19 @@ gimplify_adjust_omp_clauses (gimple_seq omp_find_stores_op, &wi); } } + + if (ctx->add_safelen1) + { + /* If there are VLAs in the body of simd loop, prevent + vectorization. */ + gcc_assert (ctx->region_type == ORT_SIMD); + c = build_omp_clause (UNKNOWN_LOCATION, OMP_CLAUSE_SAFELEN); + OMP_CLAUSE_SAFELEN_EXPR (c) = integer_one_node; + OMP_CLAUSE_CHAIN (c) = *list_p; + *list_p = c; + list_p = &OMP_CLAUSE_CHAIN (c); + } + while ((c = *list_p) != NULL) { splay_tree_node n; --- gcc/testsuite/gcc.dg/gomp/pr78884.c (nonexistent) +++ gcc/testsuite/gcc.dg/gomp/pr78884.c (revision 273477) @@ -0,0 +1,16 @@ +/* PR middle-end/78884 */ +/* { dg-do compile } */ +/* { dg-options "-O2 -fopenmp" } */ + +void bar (int *); + +void +foo (int n) +{ +#pragma omp simd + for (int i = 0; i < 1024; i++) + { + int vla[n]; + bar (vla); + } +}
2019-08-29 Jakub Jelinek <ja...@redhat.com> Backported from mainline 2019-07-30 Jakub Jelinek <ja...@redhat.com> PR target/91150 * config/i386/i386.c (expand_vec_perm_blend): Change mask type from unsigned to unsigned HOST_WIDE_INT. For E_V64QImode cast comparison to unsigned HOST_WIDE_INT before shifting it left. * gcc.target/i386/avx512bw-pr91150.c: New test. --- gcc/config/i386/i386.c (revision 273963) +++ gcc/config/i386/i386.c (revision 273964) @@ -46199,7 +46199,8 @@ static bool expand_vec_perm_blend (struct expand_vec_perm_d *d) { machine_mode mmode, vmode = d->vmode; - unsigned i, mask, nelt = d->nelt; + unsigned i, nelt = d->nelt; + unsigned HOST_WIDE_INT mask; rtx target, op0, op1, maskop, x; rtx rperm[32], vperm; @@ -46253,7 +46254,7 @@ expand_vec_perm_blend (struct expand_vec case E_V16SImode: case E_V8DImode: for (i = 0; i < nelt; ++i) - mask |= (d->perm[i] >= nelt) << i; + mask |= ((unsigned HOST_WIDE_INT) (d->perm[i] >= nelt)) << i; break; case E_V2DImode: --- gcc/testsuite/gcc.target/i386/avx512bw-pr91150.c (nonexistent) +++ gcc/testsuite/gcc.target/i386/avx512bw-pr91150.c (revision 273964) @@ -0,0 +1,37 @@ +/* PR target/91150 */ +/* { dg-do run } */ +/* { dg-options "-O2 -mavx512bw" } */ +/* { dg-require-effective-target avx512bw } */ + +#include "avx512bw-check.h" + +typedef unsigned char V __attribute__((vector_size (64))); + +__attribute__((noipa)) void +foo (V *x, V *y, V *z) +{ + *x = __builtin_shuffle (*y, *z, (V) { 0, 1, 2, 3, 4, 5, 6, 7, 8, + 9, 10, 11, 12, 13, 14, 15, + 80, 81, 82, 83, 84, 85, 86, 87, + 88, 89, 90, 91, 92, 93, 94, 95, + 96, 97, 98, 99, 100, 101, 102, 103, + 104, 105, 106, 107, 108, 109, 110, 111, + 112, 113, 114, 115, 116, 117, 118, 119, + 120, 121, 122, 123, 124, 125, 126, 127 }); +} + +static void +avx512bw_test (void) +{ + union U { unsigned char a[64]; V v; } a, b, c; + int i; + for (i = 0; i < 64; i++) + { + b.a[i] = i + 1; + c.a[i] = i + 65; + } + foo (&a.v, &b.v, &c.v); + for (i = 0; i < 64; i++) + if (a.a[i] != (i < 16 ? i + 1 : i + 65)) + __builtin_abort (); +}