Jakub Jelinek [Fri, 12 Jan 2018 18:20:49 +0000 (19:20 +0100)]
re PR debug/81155 (Debug make check regressions in GCC 8.0)
PR debug/81155
* bb-reorder.c (pass_partition_blocks::gate): In lto don't partition
main to workaround a bug in GDB.
From-SVN: r256592
Tom de Vries [Fri, 12 Jan 2018 17:36:07 +0000 (17:36 +0000)]
Set use_gcc_stdint=wrap for nvptx
2018-01-12 Tom de Vries <tom@codesourcery.com>
PR target/83737
* config.gcc (nvptx*-*-*): Set use_gcc_stdint=wrap.
From-SVN: r256591
Vladimir Makarov [Fri, 12 Jan 2018 17:00:36 +0000 (17:00 +0000)]
re PR rtl-optimization/80481 (Unoptimal additional copy instructions)
2018-01-12 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/80481
* ira-color.c (get_cap_member): New function.
(allocnos_conflict_by_live_ranges_p): Use it.
(slot_coalesced_allocno_live_ranges_intersect_p): Add assert.
(setup_slot_coalesced_allocno_live_ranges): Ditto.
2018-01-12 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/80481
* g++.dg/pr80481.C: New.
From-SVN: r256590
Uros Bizjak [Fri, 12 Jan 2018 16:47:45 +0000 (17:47 +0100)]
re PR rtl-optimization/83628 (performance regression when accessing arrays on alpha)
PR target/83628
* config/alpha/alpha.md (*saddsi_1): New insn_ans_split pattern.
(*saddl_se_1): Ditto.
(*ssubsi_1): Ditto.
(*saddl_se_1): Ditto.
testsuite/ChangeLog:
PR target/83628
* gcc.target/alpha/pr83628-3.c: New test.
From-SVN: r256589
Rainer Orth [Fri, 12 Jan 2018 15:57:40 +0000 (15:57 +0000)]
Guard against incomplete AVX512F support in Solaris as
* lib/target-supports.exp (check_effective_target_avx512f): Also
check for __builtin_ia32_addsd_round,
__builtin_ia32_getmantsd_round.
* gcc.target/i386/i386.exp (check_effective_target_avx512f):
Remove.
From-SVN: r256588
Richard Sandiford [Fri, 12 Jan 2018 14:48:53 +0000 (14:48 +0000)]
Handle polynomial DR_INIT
The idea with the main 107-patch poly_int series (latterly 109-patch)
was to change the mode sizes and vector element counts to poly_int and
then propagate those changes as far as they needed to go to fix build
failures from incompatible types. This means that DR_INIT is now
constructed as a poly_int64:
poly_int64 pbytepos;
if (!multiple_p (pbitpos, BITS_PER_UNIT, &pbytepos))
{
if (dump_file && (dump_flags & TDF_DETAILS))
fprintf (dump_file, "failed: bit offset alignment.\n");
return false;
}
[...]
init = ssize_int (pbytepos);
This patch adjusts other references to DR_INIT accordingly. Unlike
the above, the adjustments weren't needed to avoid a build-time type
incompatibility, but they are needed to make the producer and consumers
of DR_INIT logically consistent.
2018-01-12 Richard Sandiford <richard.sandiford@linaro.org>
gcc/
* tree-predcom.c (aff_combination_dr_offset): Use wi::to_poly_widest
rather than wi::to_widest for DR_INITs.
* tree-vect-data-refs.c (vect_find_same_alignment_drs): Use
wi::to_poly_offset rather than wi::to_offset for DR_INIT.
(vect_analyze_data_ref_accesses): Require both DR_INITs to be
INTEGER_CSTs.
(vect_analyze_group_access_1): Note that here.
From-SVN: r256587
Richard Sandiford [Fri, 12 Jan 2018 14:48:35 +0000 (14:48 +0000)]
Handle poly_int vector sizes in get_vec_alignment_for_array_type
get_vectype_for_scalar_type returns a variable-length vector type
for SVE, whereas get_vec_alignment_for_array_type assumed it would
always be an INTEGER_CST.
This is needed to build libstdc++-v3/src/closures.cc for SVE
(and probably many other places besides -- this was just the
first hit).
2018-01-12 Richard Sandiford <richard.sandiford@linaro.org>
gcc/
* tree-vectorizer.c (get_vec_alignment_for_array_type): Handle
polynomial type sizes.
From-SVN: r256586
Richard Sandiford [Fri, 12 Jan 2018 14:48:00 +0000 (14:48 +0000)]
Allow variable-sized temporary variables in gimplify.c
This is needed to build libgfortran for SVE. The OpenMP code needs
to create temporary vector variables, and the variables will therefore
be variable-sized for SVE. Earlier patches made such variables work.
2018-01-12 Richard Sandiford <richard.sandiford@linaro.org>
gcc/
* gimplify.c (gimple_add_tmp_var_fn): Allow variables to have a
poly_uint64 size, rather than requiring an unsigned HOST_WIDE_INT size.
(gimple_add_tmp_var): Likewise.
From-SVN: r256585
Martin Liska [Fri, 12 Jan 2018 14:47:26 +0000 (15:47 +0100)]
Fix integer overflow in stats of GIMPLE statements.
2018-01-12 Martin Liska <mliska@suse.cz>
* gimple.c (gimple_alloc_counts): Use uint64_t instead of int.
(gimple_alloc_sizes): Likewise.
(dump_gimple_statistics): Use PRIu64 in printf format.
* gimple.h: Change uint64_t to int.
From-SVN: r256584
Martin Liska [Fri, 12 Jan 2018 14:45:35 +0000 (15:45 +0100)]
Fix integer overflow in stats of trees.
2018-01-12 Martin Liska <mliska@suse.cz>
* tree-core.h: Use uint64_t instead of int.
* tree.c (tree_node_counts): Likewise.
(tree_node_sizes): Likewise.
(dump_tree_statistics): Use PRIu64 in printf format.
From-SVN: r256583
Martin Liska [Fri, 12 Jan 2018 14:43:58 +0000 (15:43 +0100)]
Fix --enable-gather-detailed-mem-stats build.
2018-01-12 Martin Liska <mliska@suse.cz>
* Makefile.in: As qsort_chk is implemented in vec.c, add
vec.o to linkage of gencfn-macros.
* tree.c (build_new_poly_int_cst): Add CXX_MEM_STAT_INFO as it's
passing the info to record_node_allocation_statistics.
(test_vector_cst_patterns): Add CXX_MEM_STAT_INFO to declaration
and pass the info.
* ggc-common.c (struct ggc_usage): Add operator== and use
it in operator< and compare function.
* mem-stats.h (struct mem_usage): Likewise.
* vec.c (struct vec_usage): Remove operator< and compare
function. Can be simply inherited.
From-SVN: r256582
Martin Jambor [Fri, 12 Jan 2018 14:06:10 +0000 (15:06 +0100)]
Deferring FMA transformations in tight loops
2018-01-12 Martin Jambor <mjambor@suse.cz>
PR target/81616
* params.def: New parameter PARAM_AVOID_FMA_MAX_BITS.
* tree-ssa-math-opts.c: Include domwalk.h.
(convert_mult_to_fma_1): New function.
(fma_transformation_info): New type.
(fma_deferring_state): Likewise.
(cancel_fma_deferring): New function.
(result_of_phi): Likewise.
(last_fma_candidate_feeds_initial_phi): Likewise.
(convert_mult_to_fma): Added deferring logic, split actual
transformation to convert_mult_to_fma_1.
(math_opts_dom_walker): New type.
(math_opts_dom_walker::after_dom_children): New method, body moved
here from pass_optimize_widening_mul::execute, added deferring logic
bits.
(pass_optimize_widening_mul::execute): Moved most of code to
math_opts_dom_walker::after_dom_children.
* config/i386/x86-tune.def (X86_TUNE_AVOID_128FMA_CHAINS): New.
* config/i386/i386.c (ix86_option_override_internal): Added
maybe_setting of PARAM_AVOID_FMA_MAX_BITS.
From-SVN: r256581
Richard Biener [Fri, 12 Jan 2018 13:19:23 +0000 (13:19 +0000)]
re PR debug/83157 (gcc.dg/guality/pr41616-1.c fail, inline instances refer to concrete instance as abstract origin)
2018-01-12 Richard Biener <rguenther@suse.de>
PR debug/83157
* dwarf2out.c (gen_variable_die): Do not reset old_die for
inline instance vars.
From-SVN: r256580
Oleg Endo [Fri, 12 Jan 2018 12:10:56 +0000 (12:10 +0000)]
re PR target/81819 ([RX] internal compiler error: in rx_is_restricted_memory_address, at config/rx/rx.c:311)
gcc/
PR target/81819
* config/rx/rx.c (rx_is_restricted_memory_address):
Handle SUBREG case.
From-SVN: r256578
Segher Boessenkool [Fri, 12 Jan 2018 12:10:16 +0000 (13:10 +0100)]
rs6000: Tune new testcase (PR83629)
It has some problems running on some 64-bit configuratiions, and the
bug it is testing for is only on 32-bit; so let's not run it elsewhere.
gcc/testsuite/
PR target/83629
* gcc.target/powerpc/pr83629.c: Require ilp32.
From-SVN: r256577
Richard Biener [Fri, 12 Jan 2018 11:43:13 +0000 (11:43 +0000)]
re PR target/80846 (auto-vectorized AVX2 horizontal sum should narrow to 128b right away, to be more efficient for Ryzen and Intel)
2018-01-12 Richard Biener <rguenther@suse.de>
PR tree-optimization/80846
* target.def (split_reduction): New target hook.
* targhooks.c (default_split_reduction): New function.
* targhooks.h (default_split_reduction): Declare.
* tree-vect-loop.c (vect_create_epilog_for_reduction): If the
target requests first reduce vectors by combining low and high
parts.
* tree-vect-stmts.c (vect_gen_perm_mask_any): Adjust.
(get_vectype_for_scalar_type_and_size): Export.
* tree-vectorizer.h (get_vectype_for_scalar_type_and_size): Declare.
* doc/tm.texi.in (TARGET_VECTORIZE_SPLIT_REDUCTION): Document.
* doc/tm.texi: Regenerate.
i386/
* config/i386/i386.c (ix86_split_reduction): Implement
TARGET_VECTORIZE_SPLIT_REDUCTION.
* gcc.target/i386/pr80846-1.c: New testcase.
* gcc.target/i386/pr80846-2.c: Likewise.
From-SVN: r256576
Eric Botcazou [Fri, 12 Jan 2018 11:29:30 +0000 (11:29 +0000)]
re PR target/83368 (alloca after setjmp breaks PIC base reg)
PR target/83368
* config/sparc/sparc.h (PIC_OFFSET_TABLE_REGNUM): Set to INVALID_REGNUM
in PIC mode except for TARGET_VXWORKS_RTP.
* config/sparc/sparc.c: Include cfgrtl.h.
(TARGET_INIT_PIC_REG): Define.
(TARGET_USE_PSEUDO_PIC_REG): Likewise.
(sparc_pic_register_p): New predicate.
(sparc_legitimate_address_p): Use it.
(sparc_legitimize_pic_address): Likewise.
(sparc_delegitimize_address): Likewise.
(sparc_mode_dependent_address_p): Likewise.
(gen_load_pcrel_sym): Remove 4th parameter.
(load_got_register): Adjust call to above. Remove obsolete stuff.
(sparc_expand_prologue): Do not call load_got_register here.
(sparc_flat_expand_prologue): Likewise.
(sparc_output_mi_thunk): Set the pic_offset_table_rtx object.
(sparc_use_pseudo_pic_reg): New function.
(sparc_init_pic_reg): Likewise.
* config/sparc/sparc.md (vxworks_load_got): Set the GOT register.
(builtin_setjmp_receiver): Enable only for TARGET_VXWORKS_RTP.
From-SVN: r256575
Christophe Lyon [Fri, 12 Jan 2018 11:25:31 +0000 (11:25 +0000)]
Add doc for branch_cost effective target.
2018-01-12 Christophe Lyon <christophe.lyon@linaro.org>
gcc/
* doc/sourcebuild.texi (Effective-Target Keywords, Other attributes):
Add item for branch_cost.
From-SVN: r256574
Eric Botcazou [Fri, 12 Jan 2018 10:18:24 +0000 (10:18 +0000)]
re PR rtl-optimization/83565 (RTL combine pass yields wrong rotate result)
PR rtl-optimization/83565
* rtlanal.c (nonzero_bits1): On WORD_REGISTER_OPERATIONS machines, do
not extend the result to a larger mode for rotate operations.
(num_sign_bit_copies1): Likewise.
From-SVN: r256572
Tom de Vries [Fri, 12 Jan 2018 10:03:00 +0000 (10:03 +0000)]
Add dg-require-effective-target indirect_jumps for g++
2018-01-12 Tom de Vries <tom@codesourcery.com>
* g++.dg/ext/label13.C: Add dg-require-effective-target indirect_jumps.
* g++.dg/ext/label13a.C: Same.
* g++.dg/ext/label14.C: Same.
* g++.dg/ext/label2.C: Same.
* g++.dg/ext/label3.C: Same.
* g++.dg/torture/pr42462.C: Same.
* g++.dg/torture/pr42739.C: Same.
* g++.dg/warn/Wunused-label-3.C: Same.
From-SVN: r256571
Tom de Vries [Fri, 12 Jan 2018 10:02:45 +0000 (10:02 +0000)]
Add dg-require-effective-target alloca for c++ test-cases
2018-01-12 Tom de Vries <tom@codesourcery.com>
* c-c++-common/dwarf2/vla1.c: Add dg-require-effective-target alloca.
* g++.dg/Walloca1.C: Same.
* g++.dg/cpp0x/pr70338.C: Same.
* g++.dg/cpp1y/lambda-generic-vla1.C: Same.
* g++.dg/cpp1y/vla10.C: Same.
* g++.dg/cpp1y/vla2.C: Same.
* g++.dg/cpp1y/vla6.C: Same.
* g++.dg/cpp1y/vla8.C: Same.
* g++.dg/debug/debug5.C: Same.
* g++.dg/debug/debug6.C: Same.
* g++.dg/debug/pr54828.C: Same.
* g++.dg/diagnostic/pr70105.C: Same.
* g++.dg/eh/cleanup5.C: Same.
* g++.dg/eh/spbp.C: Same.
* g++.dg/ext/tmplattr9.C: Same.
* g++.dg/ext/vla10.C: Same.
* g++.dg/ext/vla11.C: Same.
* g++.dg/ext/vla12.C: Same.
* g++.dg/ext/vla15.C: Same.
* g++.dg/ext/vla16.C: Same.
* g++.dg/ext/vla17.C: Same.
* g++.dg/ext/vla3.C: Same.
* g++.dg/ext/vla6.C: Same.
* g++.dg/ext/vla7.C: Same.
* g++.dg/init/array24.C: Same.
* g++.dg/init/new47.C: Same.
* g++.dg/init/pr55497.C: Same.
* g++.dg/opt/pr78201.C: Same.
* g++.dg/template/vla2.C: Same.
* g++.dg/torture/Wsizeof-pointer-memaccess1.C: Same.
* g++.dg/torture/Wsizeof-pointer-memaccess2.C: Same.
* g++.dg/torture/pr62127.C: Same.
* g++.dg/torture/pr67055.C: Same.
* g++.dg/torture/stackalign/eh-alloca-1.C: Same.
* g++.dg/torture/stackalign/eh-inline-2.C: Same.
* g++.dg/torture/stackalign/eh-vararg-1.C: Same.
* g++.dg/torture/stackalign/eh-vararg-2.C: Same.
* g++.dg/warn/Wplacement-new-size-5.C: Same.
* g++.dg/warn/Wsizeof-pointer-memaccess-1.C: Same.
* g++.dg/warn/Wvla-1.C: Same.
* g++.dg/warn/Wvla-3.C: Same.
* g++.old-deja/g++.ext/array2.C: Same.
* g++.old-deja/g++.ext/constructor.C: Same.
* g++.old-deja/g++.law/builtin1.C: Same.
* g++.old-deja/g++.other/crash12.C: Same.
* g++.old-deja/g++.other/eh3.C: Same.
* g++.old-deja/g++.pt/array6.C: Same.
* g++.old-deja/g++.pt/dynarray.C: Same.
From-SVN: r256570
Rainer Orth [Fri, 12 Jan 2018 09:56:30 +0000 (09:56 +0000)]
Fix g++.dg/cpp0x/inh-ctor30.C
* g++.dg/cpp0x/inh-ctor30.C: Allow for alternate mangled form.
From-SVN: r256569
Rainer Orth [Fri, 12 Jan 2018 09:52:53 +0000 (09:52 +0000)]
Link with correct values-*.o files on Solaris (PR target/40411)
gcc/testsuite:
PR libfortran/67412
* gfortran.dg/execute_command_line_2.f90: Remove dg-xfail-run-if
on *-*-solaris2.10.
libstdc++-v3:
PR libstdc++/64054
* testsuite/27_io/basic_ostream/inserters_arithmetic/char/hexfloat.cc:
Remove dg-xfail-run-if.
gcc:
PR target/40411
* config/sol2.h (STARTFILE_ARCH_SPEC): Don't use with -shared or
-symbolic.
Use values-Xc.o for -pedantic.
Link with values-xpg4.o for C90, values-xpg6.o otherwise.
From-SVN: r256568
Rainer Orth [Fri, 12 Jan 2018 09:18:07 +0000 (09:18 +0000)]
Include all x86 targets in branch_cost effective target
* lib/target-supports.exp (check_effective_target_branch_cost):
Accept all x86 targets.
From-SVN: r256567
Martin Liska [Fri, 12 Jan 2018 08:59:52 +0000 (09:59 +0100)]
Initialize type_warnings::dyn_count with a default value (PR ipa/83054).
2018-01-12 Martin Liska <mliska@suse.cz>
PR ipa/83054
* ipa-devirt.c (final_warning_record::grow_type_warnings):
New function.
(possible_polymorphic_call_targets): Use it.
(ipa_devirt): Likewise.
2018-01-12 Martin Liska <mliska@suse.cz>
PR ipa/83054
* g++.dg/warn/pr83054.C: New test.
From-SVN: r256566
Martin Liska [Fri, 12 Jan 2018 08:58:58 +0000 (09:58 +0100)]
Add new verification for profile-count.h.
2018-01-12 Martin Liska <mliska@suse.cz>
* profile-count.h (enum profile_quality): Use 0 as invalid
enum value of profile_quality.
From-SVN: r256565
Chung-Ju Wu [Fri, 12 Jan 2018 08:44:21 +0000 (08:44 +0000)]
Add new NDS32 options -mext-perf, -mext-perf2 and -mext-string in the documentation.
gcc/
* doc/invoke.texi (NDS32 Options): Add -mext-perf, -mext-perf2 and
-mext-string options.
From-SVN: r256564
Richard Biener [Fri, 12 Jan 2018 08:22:16 +0000 (08:22 +0000)]
lto-streamer-out.c (DFS::DFS_write_tree_body): Process DECL_DEBUG_EXPR conditional on DECL_HAS_DEBUG_EXPR_P.
2018-01-12 Richard Biener <rguenther@suse.de>
* lto-streamer-out.c (DFS::DFS_write_tree_body): Process
DECL_DEBUG_EXPR conditional on DECL_HAS_DEBUG_EXPR_P.
* tree-streamer-in.c (lto_input_ts_decl_common_tree_pointers):
Likewise.
* tree-streamer-out.c (write_ts_decl_common_tree_pointers): Likewise.
From-SVN: r256563
GCC Administrator [Fri, 12 Jan 2018 00:16:17 +0000 (00:16 +0000)]
Daily bump.
From-SVN: r256561
Michael Meissner [Thu, 11 Jan 2018 23:31:09 +0000 (23:31 +0000)]
configure.ac (--with-long-double-format): Add support for the configuration option to change the default long double...
2018-01-11 Michael Meissner <meissner@linux.vnet.ibm.com>
* configure.ac (--with-long-double-format): Add support for the
configuration option to change the default long double format on
PowerPC systems.
* config.gcc (powerpc*-linux*-*): Likewise.
* configure: Regenerate.
* config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): If long
double is IEEE, define __KC__ and __KF__ to allow floatn.h to be
used without modification.
From-SVN: r256558
Bill Schmidt [Thu, 11 Jan 2018 22:32:41 +0000 (22:32 +0000)]
rs6000-builtin.def (BU_P7_MISC_X): New #define.
[gcc]
2018-01-11 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
* config/rs6000/rs6000-builtin.def (BU_P7_MISC_X): New #define.
(SPEC_BARRIER): New instantiation of BU_P7_MISC_X.
* config/rs6000/rs6000.c (rs6000_expand_builtin): Handle
MISC_BUILTIN_SPEC_BARRIER.
(rs6000_init_builtins): Likewise.
* config/rs6000/rs6000.md (UNSPECV_SPEC_BARRIER): New UNSPECV
enum value.
(speculation_barrier): New define_insn.
* doc/extend.texi: Document __builtin_speculation_barrier.
[gcc/testsuite]
2018-01-11 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
* gcc.target/powerpc/spec-barr-1.c: New file.
From-SVN: r256557
Jakub Jelinek [Thu, 11 Jan 2018 20:49:40 +0000 (21:49 +0100)]
re PR target/83203 (Inefficient int to avx2 vector conversion)
PR target/83203
* config/i386/i386.c (ix86_expand_vector_init_one_nonzero): If one_var
is 0, for V{8,16}S[IF] and V[48]D[IF]mode use gen_vec_set<mode>_0.
* config/i386/sse.md (VI8_AVX_AVX512F, VI4F_256_512): New mode
iterators.
(ssescalarmodesuffix): Add 512-bit vectors. Use "d" or "q" for
integral modes instead of "ss" and "sd".
(vec_set<mode>_0): New define_insns for 256-bit and 512-bit
vectors with 32-bit and 64-bit elements.
(vecdupssescalarmodesuffix): New mode attribute.
(vec_dup<mode>): Use it.
From-SVN: r256556
H.J. Lu [Thu, 11 Jan 2018 20:44:46 +0000 (20:44 +0000)]
i386: Align stack frame if argument is passed on stack
When a function call is removed, it may become a leaf function. But if
argument may be passed on stack, we need to align the stack frame when
there is no tail call.
Tested on Linux/i686 and Linux/x86-64.
gcc/
PR target/83330
* config/i386/i386.c (ix86_compute_frame_layout): Align stack
frame if argument is passed on stack.
gcc/testsuite/
PR target/83330
* gcc.target/i386/pr83330.c: New test.
From-SVN: r256555
Steven G. Kargl [Thu, 11 Jan 2018 20:24:36 +0000 (20:24 +0000)]
re PR fortran/79383 (USE statement error)
2018-01-11 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/79383
* gfortran.dg/dtio_31.f03: New test.
* gfortran.dg/dtio_32.f03: New test.
From-SVN: r256554
Ian Lance Taylor [Thu, 11 Jan 2018 19:58:55 +0000 (19:58 +0000)]
re PR go/83794 (misc/cgo/test uses gigabytes of memory)
PR go/83794
misc/cgo/test: avoid endless loop when we can't parse notes
Reviewed-on: https://go-review.googlesource.com/87416
From-SVN: r256553
David Malcolm [Thu, 11 Jan 2018 19:38:52 +0000 (19:38 +0000)]
Add some reproducers for issues found developing the location-wrappers patch
gcc/testsuite/ChangeLog:
PR c++/43486
* g++.dg/wrappers: New subdirectory.
* g++.dg/wrappers/README: New file.
* g++.dg/wrappers/alloc.C: New test case.
* g++.dg/wrappers/cow-istream-string.C: New test case.
* g++.dg/wrappers/cp-stdlib.C: New test case.
* g++.dg/wrappers/sanitizer_coverage_libcdep_new.C: New test case.
* g++.dg/wrappers/wrapper-around-type-pack-expansion.C: New test
case.
From-SVN: r256552
Jakub Jelinek [Thu, 11 Jan 2018 19:34:56 +0000 (20:34 +0100)]
re PR target/82682 (FAIL: gcc.target/i386/pr50038.c scan-assembler-times movzbl 2 (found 3 times) since r253958)
PR target/82682
* ree.c (combine_reaching_defs): Optimize also
reg2=exp; reg1=reg2; reg2=any_extend(reg1); into
reg2=any_extend(exp); reg1=reg2;, formatting fix.
From-SVN: r256551
Jason Merrill [Thu, 11 Jan 2018 19:08:41 +0000 (14:08 -0500)]
PR c++/82728 - wrong -Wunused-but-set-variable
PR c++/82799
PR c++/83690
* call.c (perform_implicit_conversion_flags): Call mark_rvalue_use.
* decl.c (case_conversion): Likewise.
* semantics.c (finish_static_assert): Call
perform_implicit_conversion_flags.
From-SVN: r256550
Jan Hubicka [Thu, 11 Jan 2018 17:47:20 +0000 (18:47 +0100)]
re PR tree-optimization/83189 (internal compiler error: in probability_in, at profile-count.h:1050)
PR middle-end/83189
* gimple-ssa-isolate-paths.c (isolate_path): Fix profile update.
From-SVN: r256545
Jan Hubicka [Thu, 11 Jan 2018 17:46:01 +0000 (18:46 +0100)]
re PR middle-end/83718 (ICE: Floating point exception in profile_count::apply_scale)
PR middle-end/83718
* tree-inline.c (copy_cfg_body): Adjust num&den for scaling
after they are computed.
* g++.dg/torture/pr83718.C: New testcase.
From-SVN: r256544
Nathan Sidwell [Thu, 11 Jan 2018 16:57:31 +0000 (16:57 +0000)]
[C++ PATCH] kill unused enum
https://gcc.gnu.org/ml/gcc-patches/2018-01/msg00923.html
* method.c (enum mangling_flags): Delete long-dead enum.
From-SVN: r256543
Martin Jambor [Thu, 11 Jan 2018 15:56:07 +0000 (16:56 +0100)]
re PR ipa/83178 (g++.dg/ipa/devirt-22.C fail)
PR ipa/83178
* g++.dg/ipa/devirt-22.C: Adjust scan-dump-times count.
From-SVN: r256542
Bin Cheng [Thu, 11 Jan 2018 15:41:41 +0000 (15:41 +0000)]
re PR tree-optimization/83695 (ICE on valid code at -O3: Segmentation fault)
PR tree-optimization/83695
* gimple-loop-linterchange.cc
(tree_loop_interchange::interchange_loops): Call scev_reset_htab to
reset cached scev information after interchange.
(pass_linterchange::execute): Remove call to scev_reset_htab.
gcc/testsuite
PR tree-optimization/83695
* gcc.dg/tree-ssa/pr83695.c: New test.
From-SVN: r256541
Kyrylo Tkachov [Thu, 11 Jan 2018 15:24:26 +0000 (15:24 +0000)]
[arm][3/3] Implement fp16fml lane intrinsics
This patch implements the lane-wise fp16fml intrinsics.
There's quite a few of them so I've split them up from
the other simpler fp16fml intrinsics.
These ones expose instructions such as
vfmal.f16 Dd, Sn, Sm[<index>] 0 <= index <= 1
vfmal.f16 Qd, Dn, Dm[<index>] 0 <= index <= 3
vfmsl.f16 Dd, Sn, Sm[<index>] 0 <= index <= 1
vfmsl.f16 Qd, Dn, Dm[<index>] 0 <= index <= 3
These instructions extract a single half-precision
floating-point value from one of the source regs
and perform a vfmal/vfmsl operation as per the
normal variant with that value.
The nuance here is that some of the intrinsics want
to do things like:
float32x2_t vfmlal_laneq_low_u32 (float32x2_t __r, float16x4_t __a, float16x8_t __b, const int __index)
where the float16x8_t value of '__b' is held in a Q
register, so we need to be a bit smart about finding
the right D or S sub-register and translating the
lane number to a lane in that sub-register, instead
of just passing the language-level const-int down to
the assembly instruction.
That's where most of the complexity of this patch comes from
but hopefully it's orthogonal enough to make sense.
Bootstrapped and tested on arm-none-linux-gnueabihf as well as
armeb-none-eabi.
* config/arm/arm_neon.h (vfmlal_lane_low_u32, vfmlal_lane_high_u32,
vfmlalq_laneq_low_u32, vfmlalq_lane_low_u32, vfmlal_laneq_low_u32,
vfmlalq_laneq_high_u32, vfmlalq_lane_high_u32, vfmlal_laneq_high_u32,
vfmlsl_lane_low_u32, vfmlsl_lane_high_u32, vfmlslq_laneq_low_u32,
vfmlslq_lane_low_u32, vfmlsl_laneq_low_u32, vfmlslq_laneq_high_u32,
vfmlslq_lane_high_u32, vfmlsl_laneq_high_u32): Define.
* config/arm/arm_neon_builtins.def (vfmal_lane_low,
vfmal_lane_lowv4hf, vfmal_lane_lowv8hf, vfmal_lane_high,
vfmal_lane_highv4hf, vfmal_lane_highv8hf, vfmsl_lane_low,
vfmsl_lane_lowv4hf, vfmsl_lane_lowv8hf, vfmsl_lane_high,
vfmsl_lane_highv4hf, vfmsl_lane_highv8hf): New sets of builtins.
* config/arm/iterators.md (VFMLSEL2, vfmlsel2): New mode attributes.
(V_lane_reg): Likewise.
* config/arm/neon.md (neon_vfm<vfml_op>l_lane_<vfml_half><VCVTF:mode>):
New define_expand.
(neon_vfm<vfml_op>l_lane_<vfml_half><vfmlsel2><mode>): Likewise.
(vfmal_lane_low<mode>_intrinsic,
vfmal_lane_low<vfmlsel2><mode>_intrinsic,
vfmal_lane_high<vfmlsel2><mode>_intrinsic,
vfmal_lane_high<mode>_intrinsic, vfmsl_lane_low<mode>_intrinsic,
vfmsl_lane_low<vfmlsel2><mode>_intrinsic,
vfmsl_lane_high<vfmlsel2><mode>_intrinsic,
vfmsl_lane_high<mode>_intrinsic): New define_insns.
* gcc.target/arm/simd/fp16fml_lane_high.c: New test.
* gcc.target/arm/simd/fp16fml_lane_low.c: New test.
From-SVN: r256540
Kyrylo Tkachov [Thu, 11 Jan 2018 15:21:26 +0000 (15:21 +0000)]
[arm][2/3] Implement fp16fml extension for ARMv8.4-A
This patch adds the +fp16fml extension that enables some
half-precision floating-point Advanced SIMD instructions,
available through arm_neon.h intrinsics.
This extension is on by default for armv8.4-a
if fp16 is available, so it can be enabled by -march=armv8.4-a+fp16.
fp16fml is also available for armv8.2-a and armv8.3-a through the
+fp16fml option that is added for these architectures.
The new instructions that this patch adds support for are:
vfmal.f16 Dr, Sm, Sn
vfmal.f16 Qr, Dm, Dn
vfmsl.f16 Dr, Sm, Sn
vfmsl.f16 Qr, Dm, Dn
They interpret their input registers as a vector of half-precision
floating-point values, extend them to single-precision vectors
and perform a fused multiply-add or subtract of them with the
destination vector.
This patch exposes these instructions through arm_neon.h intrinsics.
The set of intrinsics allows us to do stuff such as perform
the multiply-add/subtract operation on the low or top half of
float16x4_t and float16x8_t values. This maps naturally in aarch64
to the FMLAL and FMLAL2 instructions but on arm we have to use the
fact that consecutive NEON registers overlap the wider register
(i.e. d0 is s0 plus s1, q0 is d0 plus d1 etc). This just means
we have to be careful to use the right subreg operand print code.
New arm-specific builtins are defined to expand to the new patterns.
I've managed to compress the define_expands using code, mode and int
iterators but the define_insns don't compress very well without two-tiered
iterators (iterator attributes expanding to iterators) which we
don't support.
Bootstrapped and tested on arm-none-linux-gnueabihf and also on
armeb-none-eabi.
* config/arm/arm-cpus.in (fp16fml): New feature.
(ALL_SIMD): Add fp16fml.
(armv8.2-a): Add fp16fml as an option.
(armv8.3-a): Likewise.
(armv8.4-a): Add fp16fml as part of fp16.
* config/arm/arm.h (TARGET_FP16FML): Define.
* config/arm/arm-c.c (arm_cpu_builtins): Define __ARM_FEATURE_FP16_FML
when appropriate.
* config/arm/arm-modes.def (V2HF): Define.
* config/arm/arm_neon.h (vfmlal_low_u32, vfmlsl_low_u32,
vfmlal_high_u32, vfmlsl_high_u32, vfmlalq_low_u32,
vfmlslq_low_u32, vfmlalq_high_u32, vfmlslq_high_u32): Define.
* config/arm/arm_neon_builtins.def (vfmal_low, vfmal_high,
vfmsl_low, vfmsl_high): New set of builtins.
* config/arm/iterators.md (PLUSMINUS): New code iterator.
(vfml_op): New code attribute.
(VFMLHALVES): New int iterator.
(VFML, VFMLSEL): New mode attributes.
(V_reg): Define mapping for V2HF.
(V_hi, V_lo): New mode attributes.
(VF_constraint): Likewise.
(vfml_half, vfml_half_selector): New int attributes.
* config/arm/neon.md (neon_vfm<vfml_op>l_<vfml_half><mode>): New
define_expand.
(vfmal_low<mode>_intrinsic, vfmsl_high<mode>_intrinsic,
vfmal_high<mode>_intrinsic, vfmsl_low<mode>_intrinsic):
New define_insn.
* config/arm/t-arm-elf (v8_fps): Add fp16fml.
* config/arm/t-multilib (v8_2_a_simd_variants): Add fp16fml.
* config/arm/unspecs.md (UNSPEC_VFML_LO, UNSPEC_VFML_HI): New unspecs.
* doc/invoke.texi (ARM Options): Document fp16fml. Update armv8.4-a
documentation.
* doc/sourcebuild.texi (arm_fp16fml_neon_ok, arm_fp16fml_neon):
Document new effective target and option set.
* gcc.target/arm/multilib.exp: Add combination tests for fp16fml.
* gcc.target/arm/simd/fp16fml_high.c: New test.
* gcc.target/arm/simd/fp16fml_low.c: Likewise.
* lib/target-supports.exp
(check_effective_target_arm_fp16fml_neon_ok_nocache,
check_effective_target_arm_fp16fml_neon_ok,
add_options_for_arm_fp16fml_neon): New procedures.
From-SVN: r256539
Kyrylo Tkachov [Thu, 11 Jan 2018 15:18:04 +0000 (15:18 +0000)]
[arm][1/3] Add -march=armv8.4-a option
This patch adds support for the Armv8.4-A architecture [1]
in the arm backend. This is done through the new
-march=armv8.4-a option.
With this patch armv8.4-a is recognised as an argument
and supports the extensions: simd, fp16, crypto, nocrypto,
nofp with the familiar meaning of these options.
Worth noting that there is no dotprod option like in
armv8.2-a and armv8.3-a because Dot Product support is
mandatory in Armv8.4-A when simd is available, so when using
+simd (of fp16 which enables +simd), the +dotprod is implied.
The various multilib selection makefile fragments are updated
too and the mutlilib.exp test gets a few armv8.4-a combination
tests.
Bootstrapped and tested on arm-none-linux-gnueabihf.
From-SVN: r256537
Oleg Endo [Thu, 11 Jan 2018 15:16:21 +0000 (15:16 +0000)]
re PR target/81821 ([RX] xchg_mem<mode> uses wrong memory operand size)
gcc/
PR target/81821
* config/rx/rx.md (BW): New mode attribute.
(sync_lock_test_and_setsi): Add mode suffix to insn output.
From-SVN: r256536
Richard Biener [Thu, 11 Jan 2018 13:42:29 +0000 (13:42 +0000)]
re PR tree-optimization/83435 (ICE in set_value_range, at tree-vrp.c:211)
2018-01-11 Richard Biener <rguenther@suse.de>
PR tree-optimization/83435
* graphite.c (canonicalize_loop_form): Ignore fake loop exit edges.
* graphite-scop-detection.c (scop_detection::get_sese): Likewise.
* tree-vrp.c (add_assert_info): Drop TREE_OVERFLOW if they appear.
* gcc.dg/graphite/pr83435.c: New testcase.
From-SVN: r256535
Richard Sandiford [Thu, 11 Jan 2018 13:18:23 +0000 (13:18 +0000)]
[AArch64] Add const_offset field to aarch64_address_info
This patch records the integer value of the address offset in
aarch64_address_info, so that it doesn't need to be re-extracted
from the rtx. The SVE port will make more use of this. The patch
also uses poly_int64 routines to manipulate the offset, rather than
just handling CONST_INTs.
2018-01-11 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* config/aarch64/aarch64.c (aarch64_address_info): Add a const_offset
field.
(aarch64_classify_address): Initialize it. Track polynomial offsets.
(aarch64_print_address_internal): Use it to check for a zero offset.
Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>
From-SVN: r256534
Richard Sandiford [Thu, 11 Jan 2018 13:17:02 +0000 (13:17 +0000)]
[AArch64] Set NUM_POLY_INT_COEFFS to 2
This patch switches the AArch64 port to use 2 poly_int coefficients
and updates code as necessary to keep it compiling.
One potentially-significant change is to
aarch64_hard_regno_caller_save_mode. The old implementation
was written in a pretty conservative way: it changed the default
behaviour for single-register values, but used the default handling
for multi-register values.
I don't think that's necessary, since the interesting cases for this
macro are usually the single-register ones. Multi-register modes take
up the whole of the constituent registers and the move patterns for all
multi-register modes should be equally good.
Using the original mode for multi-register cases stops us from using
SVE modes to spill multi-register NEON values. This was caught by
gcc.c-torture/execute/pr47538.c.
Also, aarch64_shift_truncation_mask used GET_MODE_BITSIZE - 1.
GET_MODE_UNIT_BITSIZE - 1 is equivalent for the cases that it handles
(which are all scalars), and I think it's more obvious, since if we ever
do use this for elementwise shifts of vector modes, the mask will depend
on the number of bits in each element rather than the number of bits in
the whole vector.
2018-01-11 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* config/aarch64/aarch64-modes.def (NUM_POLY_INT_COEFFS): Set to 2.
* config/aarch64/aarch64-protos.h (aarch64_initial_elimination_offset):
Return a poly_int64 rather than a HOST_WIDE_INT.
(aarch64_offset_7bit_signed_scaled_p): Take the offset as a poly_int64
rather than a HOST_WIDE_INT.
* config/aarch64/aarch64.h (aarch64_frame): Protect with
HAVE_POLY_INT_H rather than HOST_WIDE_INT. Change locals_offset,
hard_fp_offset, frame_size, initial_adjust, callee_offset and
final_offset from HOST_WIDE_INT to poly_int64.
* config/aarch64/aarch64-builtins.c (aarch64_simd_expand_args): Use
to_constant when getting the number of units in an Advanced SIMD
mode.
(aarch64_builtin_vectorized_function): Check for a constant number
of units.
* config/aarch64/aarch64-simd.md (mov<mode>): Handle polynomial
GET_MODE_SIZE.
(aarch64_ld<VSTRUCT:nregs>_lane<VALLDIF:mode>): Use the nunits
attribute instead of GET_MODE_NUNITS.
* config/aarch64/aarch64.c (aarch64_hard_regno_nregs)
(aarch64_class_max_nregs): Use the constant_lowest_bound of the
GET_MODE_SIZE for fixed-size registers.
(aarch64_const_vec_all_same_in_range_p): Use const_vec_duplicate_p.
(aarch64_hard_regno_call_part_clobbered, aarch64_classify_index)
(aarch64_mode_valid_for_sched_fusion_p, aarch64_classify_address)
(aarch64_legitimize_address_displacement, aarch64_secondary_reload)
(aarch64_print_operand, aarch64_print_address_internal)
(aarch64_address_cost, aarch64_rtx_costs, aarch64_register_move_cost)
(aarch64_short_vector_p, aapcs_vfp_sub_candidate)
(aarch64_simd_attr_length_rglist, aarch64_operands_ok_for_ldpstp):
Handle polynomial GET_MODE_SIZE.
(aarch64_hard_regno_caller_save_mode): Likewise. Return modes
wider than SImode without modification.
(tls_symbolic_operand_type): Use strip_offset instead of split_const.
(aarch64_pass_by_reference, aarch64_layout_arg, aarch64_pad_reg_upward)
(aarch64_gimplify_va_arg_expr): Assert that we don't yet handle
passing and returning SVE modes.
(aarch64_function_value, aarch64_layout_arg): Use gen_int_mode
rather than GEN_INT.
(aarch64_emit_probe_stack_range): Take the size as a poly_int64
rather than a HOST_WIDE_INT, but call sorry if it isn't constant.
(aarch64_allocate_and_probe_stack_space): Likewise.
(aarch64_layout_frame): Cope with polynomial offsets.
(aarch64_save_callee_saves, aarch64_restore_callee_saves): Take the
start_offset as a poly_int64 rather than a HOST_WIDE_INT. Track
polynomial offsets.
(offset_9bit_signed_unscaled_p, offset_12bit_unsigned_scaled_p)
(aarch64_offset_7bit_signed_scaled_p): Take the offset as a
poly_int64 rather than a HOST_WIDE_INT.
(aarch64_get_separate_components, aarch64_process_components)
(aarch64_expand_prologue, aarch64_expand_epilogue)
(aarch64_use_return_insn_p): Handle polynomial frame offsets.
(aarch64_anchor_offset): New function, split out from...
(aarch64_legitimize_address): ...here.
(aarch64_builtin_vectorization_cost): Handle polynomial
TYPE_VECTOR_SUBPARTS.
(aarch64_simd_check_vect_par_cnst_half): Handle polynomial
GET_MODE_NUNITS.
(aarch64_simd_make_constant, aarch64_expand_vector_init): Get the
number of elements from the PARALLEL rather than the mode.
(aarch64_shift_truncation_mask): Use GET_MODE_UNIT_BITSIZE
rather than GET_MODE_BITSIZE.
(aarch64_evpc_trn, aarch64_evpc_uzp, aarch64_evpc_ext)
(aarch64_evpc_rev, aarch64_evpc_dup, aarch64_evpc_zip)
(aarch64_expand_vec_perm_const_1): Handle polynomial
d->perm.length () and d->perm elements.
(aarch64_evpc_tbl): Likewise. Use nelt rather than GET_MODE_NUNITS.
Apply to_constant to d->perm elements.
(aarch64_simd_valid_immediate, aarch64_vec_fpconst_pow_of_2): Handle
polynomial CONST_VECTOR_NUNITS.
(aarch64_move_pointer): Take amount as a poly_int64 rather
than an int.
(aarch64_progress_pointer): Avoid temporary variable.
* config/aarch64/aarch64.md (aarch64_<crc_variant>): Use
the mode attribute instead of GET_MODE.
Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>
From-SVN: r256533
Richard Sandiford [Thu, 11 Jan 2018 13:13:54 +0000 (13:13 +0000)]
[AArch64] Rework interface to add constant/offset routines
The port had aarch64_add_offset and aarch64_add_constant routines
that did similar things. This patch replaces them with an expanded
version of aarch64_add_offset that takes separate source and
destination registers. The new routine also takes a poly_int64 offset
instead of a HOST_WIDE_INT offset, but it leaves the HOST_WIDE_INT
case to aarch64_add_offset_1, which is basically a repurposed
aarch64_add_constant_internal. The SVE patch will put the handling
of VL-based constants in aarch64_add_offset, while still using
aarch64_add_offset_1 for the constant part.
The vcall_offset == 0 path in aarch64_output_mi_thunk will use temp0
as well as temp1 once SVE is added.
A side-effect of the patch is that we now generate:
mov x29, sp
instead of:
add x29, sp, 0
in the pr70044.c test.
2018-01-11 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* config/aarch64/aarch64.c (aarch64_force_temporary): Assert that
x exists before using it.
(aarch64_add_constant_internal): Rename to...
(aarch64_add_offset_1): ...this. Replace regnum with separate
src and dest rtxes. Handle the case in which they're different,
including when the offset is zero. Replace scratchreg with an rtx.
Use 2 additions if there is no spare register into which we can
move a 16-bit constant.
(aarch64_add_constant): Delete.
(aarch64_add_offset): Replace reg with separate src and dest
rtxes. Take a poly_int64 offset instead of a HOST_WIDE_INT.
Use aarch64_add_offset_1.
(aarch64_add_sp, aarch64_sub_sp): Take the scratch register as
an rtx rather than an int. Take the delta as a poly_int64
rather than a HOST_WIDE_INT. Use aarch64_add_offset.
(aarch64_expand_mov_immediate): Update uses of aarch64_add_offset.
(aarch64_expand_prologue): Update calls to aarch64_sub_sp,
aarch64_allocate_and_probe_stack_space and aarch64_add_offset.
(aarch64_expand_epilogue): Update calls to aarch64_add_offset
and aarch64_add_sp.
(aarch64_output_mi_thunk): Use aarch64_add_offset rather than
aarch64_add_constant.
gcc/testsuite/
* gcc.target/aarch64/pr70044.c: Allow "mov x29, sp" too.
Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>
From-SVN: r256532
Richard Sandiford [Thu, 11 Jan 2018 13:11:12 +0000 (13:11 +0000)]
[AArch64] Extra scalar_float_mode patch
In preparation for the switch to NUM_POLY_INT_COEFFS==2.
2018-01-11 Richard Sandiford <richard.sandiford@linaro.org>
gcc/
* config/aarch64/aarch64.c (aarch64_reinterpret_float_as_int):
Use scalar_float_mode.
From-SVN: r256531
Richard Sandiford [Thu, 11 Jan 2018 13:07:17 +0000 (13:07 +0000)]
[AArch64] Avoid GET_MODE_NUNITS in v8.4 support
This patch replaces GET_MODE_NUNITS in some of the v8.4 support
with equivalent values, in preparation for the switch to
NUM_POLY_INT_COEFFS==2.
2018-01-11 Richard Sandiford <richard.sandiford@linaro.org>
gcc/
* config/aarch64/aarch64-simd.md
(aarch64_fml<f16mac1>l<f16quad>_low<mode>): Avoid GET_MODE_NUNITS.
(aarch64_fml<f16mac1>l<f16quad>_high<mode>): Likewise.
(aarch64_fml<f16mac1>l_lane_lowv2sf): Likewise.
(aarch64_fml<f16mac1>l_lane_highv2sf): Likewise.
(aarch64_fml<f16mac1>lq_laneq_lowv4sf): Likewise.
(aarch64_fml<f16mac1>lq_laneq_highv4sf): Likewise.
(aarch64_fml<f16mac1>l_laneq_lowv2sf): Likewise.
(aarch64_fml<f16mac1>l_laneq_highv2sf): Likewise.
(aarch64_fml<f16mac1>lq_lane_lowv4sf): Likewise.
(aarch64_fml<f16mac1>lq_lane_highv4sf): Likewise.
From-SVN: r256530
Prathamesh Kulkarni [Thu, 11 Jan 2018 12:13:42 +0000 (12:13 +0000)]
re PR target/83514 (ABRT in arm_declare_function_name passing a null pointer to std::string)
2018-01-11 Prathamesh Kulkarni <prathamesh.kulkarni@linaro.org>
PR target/83514
* config/arm/arm.c (arm_declare_function_name): Set arch_to_print if
targ_options->x_arm_arch_string is non NULL.
From-SVN: r256529
Richard Biener [Thu, 11 Jan 2018 12:12:39 +0000 (12:12 +0000)]
re PR lto/81968 (early lto debug objects make Solaris ld SEGV)
2018-01-11 Richard Biener <rguenther@suse.de>
Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
PR lto/81968
libiberty/
* simple-object-common.h (struct simple_object_functions):
Change copy_lto_debug_sections callback signature.
* simple-object-elf.c (SHN_HIRESERVE, SHT_SYMTAB_SHNDX,
SHF_INFO_LINK): Add defines.
(simple_object_elf_copy_lto_debug_sections): Instead of
leaving not to be copied sections empty unnamed SHT_NULL
remove them from the target section headers and adjust section
reference everywhere. Handle SHN_XINDEX in the symbol table
processing properly.
* simple-object.c (handle_lto_debug_sections): Change
interface to return a modified string and handle renaming
of relocation sections.
Co-Authored-By: Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
From-SVN: r256528
Tamar Christina [Thu, 11 Jan 2018 11:56:22 +0000 (11:56 +0000)]
2018-01-11 Tamar Christina <tamar.christina@arm.com>
* config/aarch64/aarch64.h
(AARCH64_FL_FOR_ARCH8_4): Add AARCH64_FL_DOTPROD.
gcc/testsuite/
2018-01-11 Tamar Christina <tamar.christina@arm.com>
* gcc.target/aarch64/advsimd-intrinsics/vdot-compile-2.c: New.
From-SVN: r256527
Sudakshina Das [Thu, 11 Jan 2018 10:46:59 +0000 (10:46 +0000)]
[PR82096] Fix ICE in int_mode_for_mode with arm-linux-gnueabi
The bug reported a particular test di-longlong64-sync-1.c failing when run
on arm-linux-gnueabi with options -mthumb -march=armv5t -O[g,1,2,3] and
-mthumb -march=armv6 -O[g,1,2,3].
The crash was caused because of the explicit VOIDmode argument that is sent
to emit_store_flag_force () and that the emit_store_flag_force () was not
handling the VOIDmode adequately. This patch fixes that.
ChangeLog entries:
*** gcc/ChangeLog ***
2017-01-11 Sudakshina Das <sudi.das@arm.com>
PR target/82096
* expmed.c (emit_store_flag_force): Swap if const op0
and change VOIDmode to mode of op0.
*** gcc/testsuite/ChangeLog ***
2017-01-11 Sudakshina Das <sudi.das@arm.com>
PR target/82096
* gcc.c-torture/compile/pr82096.c: New test.
From-SVN: r256526
Richard Sandiford [Thu, 11 Jan 2018 09:54:26 +0000 (09:54 +0000)]
Fix mode_for_size units in caller-save.c (PR83761)
The new opt_mode asserts triggered for replace_reg_with_saved_mem
because it was passing bytes rather than bits to mode_for_size.
Previously we ended up with a BLKmode register instead, but
presumably that didn't matter because this is "only" used for
debug insns.
2018-01-11 Richard Sandiford <richard.sandiford@linaro.org>
gcc/
PR rtl-optimization/83761
* caller-save.c (replace_reg_with_saved_mem): Pass bits rather
than bytes to mode_for_size.
From-SVN: r256525
Gary Dismukes [Thu, 11 Jan 2018 08:56:18 +0000 (08:56 +0000)]
[Ada] Warning on out-of-range value for default-initialized scalar object
When an object of a type with a specified Default_Value aspect is
declared without an explicit initial value and the default value is
out of range of the objects subtype, the compiler now issues a warning
that Constraint_Error will be raised due to an out-of-range value.
The test below must output a compiler warning as follows:
$ gcc -c -gnatj70 default_warning.adb
default_warning.adb:7:08: warning: value not in range of type
"Subint" defined at line 5,
"Constraint_Error" will be raised at run
time
procedure Default_Warning is
type Int_With_Default is new Integer with Default_Value => 0;
subtype Subint is Int_With_Default range 1 .. 100;
S : Subint;
begin
null;
end Default_Warning;
2018-01-11 Gary Dismukes <dismukes@adacore.com>
gcc/ada/
* exp_ch3.adb (Default_Initialize_Object): Call New_Copy_Tree on the
result of Get_Simple_Init_Value and pass the source location of the
object declaration's object_definition.
From-SVN: r256524
Ed Schonberg [Thu, 11 Jan 2018 08:56:12 +0000 (08:56 +0000)]
[Ada] Crash on build-in-place call with address specification for target
The presence of an address clause complicates the build-in-place expansion
because the indicated address must be processed before the indirect call is
generated, including the definition of a local pointer to the object.
The address clause may come from an aspect specification or from an explicit
attribute specification appearing after the object declaration. These two
cases require different processing.
2018-01-11 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* exp_ch6.adb (Make_Build_In_Place_Call_In_Object_Declaration): Handle
properly object declarations with initializations that are
build-in-place function calls, when there is an address specification,
either as an aspect specification or an explicit attribute
specification clause, for the initialized object.
* freeze.adb (Check_Address_Clause): Do not remove side-effects from
initial expressions in the case of a build-in-place call.
gcc/testsuite/
* gnat.dg/bip_overlay.adb, gnat.dg/bip_overlay.ads: New testcase.
From-SVN: r256523
Piotr Trojanek [Thu, 11 Jan 2018 08:56:07 +0000 (08:56 +0000)]
[Ada] Allow uses of range utility routines on private types
Frontend only calls Is_Null_Range and Not_Null_Range routines on full views
of types, but backends (for example GNATprove) might call them also on
private types. This patch adapts those routines to transparently retrieve
the full type when called on a private type.
No frontend test, because only external backends are affected.
2018-01-11 Piotr Trojanek <trojanek@adacore.com>
gcc/ada/
* sem_eval.adb (Is_Null_Range): Retrieve the full view when called on a
private (sub)type; refactor to avoid early return statement.
(Not_Null_Range): Same as above.
From-SVN: r256522
Hristian Kirtchev [Thu, 11 Jan 2018 08:55:57 +0000 (08:55 +0000)]
[Ada] Prohibit concurrent types in Ghost regions
This patch ensures that single concurrent type declarations are marked as Ghost
when they appear within a Ghost region. In addition, the patch verifies that no
concurrent type is declared within a Ghost region and issues an error.
------------
-- Source --
------------
-- types.ads
package Types with Ghost is
protected Prot_Obj is -- Error
end Prot_Obj;
protected type Prot_Typ is -- Error
end Prot_Typ;
task Task_Obj; -- Error
task type Task_Typ; -- Error
end Types;
----------------------------
-- Compilation and output --
----------------------------
$ gcc -c types.ads
types.ads:2:14: ghost type "Prot_Obj" cannot be concurrent
types.ads:5:19: ghost type "Prot_Typ" cannot be concurrent
types.ads:8:09: ghost type "Task_Obj" cannot be concurrent
types.ads:10:14: ghost type "Task_Typ" cannot be concurrent
2018-01-11 Hristian Kirtchev <kirtchev@adacore.com>
gcc/ada/
* freeze.adb (Freeze_Entity): Ensure that a Ghost type is not
concurrent, nor effectively volatile.
* ghost.adb (Check_Ghost_Type): New routine.
* ghost.ads (Check_Ghost_Type): New routine.
* sem_util.adb (Is_Declaration): Reimplemented. The routine can now
consider specific subsets of declarations.
(Is_Declaration_Other_Than_Renaming): Removed. Its functionality is
replicated by Is_Declaration.
* sem_util.ads (Is_Declaration): New parameter profile. Update the
comment on usage.
(Is_Declaration_Other_Than_Renaming): Removed.
From-SVN: r256521
Hristian Kirtchev [Thu, 11 Jan 2018 08:55:52 +0000 (08:55 +0000)]
[Ada] Detection of illegal constituent assignments
This patch modifies the analysis of assignment statements to detect an illegal
attempt to alter the value of single protected type Part_Of constituent when
inside a protected function.
2018-01-11 Hristian Kirtchev <kirtchev@adacore.com>
gcc/ada/
* sem_ch5.adb (Analyze_Assignment): Assignments to variables that act
as Part_Of consituents of single protected types are illegal when they
take place inside a protected function.
(Diagnose_Non_Variable_Lhs): Use Within_Function to check for an
enclosing function.
(Is_Protected_Part_Of_Constituent): New routine.
(Within_Function): New routine.
gcc/testsuite/
* gnat.dg/protected_func.adb, gnat.dg/protected_func.ads: New testcase.
From-SVN: r256520
Arnaud Charlet [Thu, 11 Jan 2018 08:55:25 +0000 (08:55 +0000)]
[Ada] Bump copyright notices to 2018
2018-01-11 Arnaud Charlet <charlet@adacore.com>
gcc/ada/
Bump copyright notices to 2018.
From-SVN: r256519
Hristian Kirtchev [Thu, 11 Jan 2018 08:54:39 +0000 (08:54 +0000)]
[Ada] Minor reformatting
2018-01-11 Hristian Kirtchev <kirtchev@adacore.com>
gcc/ada/
* binde.adb, par-ch6.adb, par-ch9.adb, sem_ch12.adb, sem_ch13.adb:
Minor reformatting.
From-SVN: r256518
Justin Squirek [Thu, 11 Jan 2018 08:54:34 +0000 (08:54 +0000)]
[Ada] No error on missing enclosing parentheses in Expression Function
This patch fixes an issue whereby an expression within an expression
function declaration or completion without proper parenthesization is
incorrectly accepted by the compiler.
2018-01-11 Justin Squirek <squirek@adacore.com>
gcc/ada/
* par-ch6.adb (Scan_Body_Or_Expression_Function): Add additional check
to make sure a given expression function is properly parenthesized.
gcc/testsuite/
* gnat.dg/expr_func4.adb: New testcase.
From-SVN: r256517
Hristian Kirtchev [Thu, 11 Jan 2018 08:54:26 +0000 (08:54 +0000)]
[Ada] Missing diagnostic of categorization dependency
This patch modifies the analysis of subprogram bodies to catch a case where a
pure subprogram body unit depends on non-pure units.
2018-01-11 Hristian Kirtchev <kirtchev@adacore.com>
gcc/ada/
* sem_ch6.adb (Analyze_Subprogram_Body_Helper): Check the
categorization of a subprogram body which does not complete a previous
declaration.
gcc/testsuite/
* gnat.dg/pure_subp_body.adb, gnat.dg/pure_subp_body_pkg.ads: New
testcase.
From-SVN: r256516
Hristian Kirtchev [Thu, 11 Jan 2018 08:54:21 +0000 (08:54 +0000)]
[Ada] Incorrect diagnostic on illegal with clause
This patch updates the detection of illegal with clauses which import private
child packages to properly detect a grandchild of Ada.
------------
-- Source --
------------
-- fake.ads
package Fake is
end Fake;
-- fake-ada.ads
package Fake.Ada is
end Fake.Ada;
-- fake-ada-text_io.ads
package Fake.Ada.Text_IO is
end Fake.Ada.Text_IO;
-- fake-ada-text_io-float_io.ads
private generic
type Num is digits <>;
package Fake.Ada.Text_IO.Float_IO is
end Fake.Ada.Text_IO.Float_IO;
-- fake-float_io.ads
private generic
type Num is digits <>;
package Fake.Float_IO is
end Fake.Float_IO;
-- main.ads
with Fake.Ada.Text_IO.Float_IO;
with Fake.Float_IO;
package Main is
end Main;
----------------------------
-- Compilation and output --
----------------------------
$ gcc -c main.ads
main.ads:1:06: unit in with clause is private child unit
main.ads:1:06: current unit must also have parent "Text_IO"
main.ads:2:06: unit in with clause is private child unit
main.ads:2:06: current unit must also have parent "Fake"
2018-01-11 Hristian Kirtchev <kirtchev@adacore.com>
gcc/ada/
* sem_ch10.adb (Check_Private_Child_Unit): Ensure that the enclosing
scope of package Ada is Standard.
From-SVN: r256515
Ed Schonberg [Thu, 11 Jan 2018 08:54:17 +0000 (08:54 +0000)]
[Ada] Spurious error on referene to subcoponrnt in dynamic predicate
This patch fixes a visibility error in the expression for a dynamic predicate
of a record type, when the expression contains a reference to a subcomponent
of the record given by a selected component whose prefix is the name of the
enclosing component.
Executing
gnatmake -q -gnata main
./main
must yield:
TGV OK
Amtrak broken, as usual
----
with Text_IO; use Text_IO;
with Recpred; use Recpred;
procedure Main is
TGV : Train_Data;
Amtrak : Train_Data;
begin
TGV := (20, (10,10));
Put_Line ("TGV OK");
begin
Amtrak := (30, (40, 40));
exception
when Others =>
Put_Line ("Amtrak broken, as usual");
end;
end;
----
package Recpred is
type Train_Position is record
TTD : Integer;
VSS : Integer;
end record;
type Train_Data is record
MA : Integer;
Front_Position : Train_Position;
end record
with Dynamic_Predicate => MA >= Front_Position.TTD;
end Recpred;
2018-01-11 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* sem_ch13.adb (Replace_Type_Ref): Handle properly reference to a
subcomponent of the current entity when building the body for a dynamic
predicate function for a record with composite subcomponents.
From-SVN: r256514
Hristian Kirtchev [Thu, 11 Jan 2018 08:54:12 +0000 (08:54 +0000)]
[Ada] Secondary stack leaks during object initialization
This patch modifies the transient scope mechanism to prevent secondary stack
leaks during object initialization. The modifications are as follows:
1) Prior to this change, the secondary stack was never managed within type
initialization procedures, for reasons unknown. It is speculated that the
controlled type model used at that time may have influenced this decision.
The secondary stack is now managed within type initialization procedures
in order to recover the memory once individual components or whole objects
are initialized.
2) A transient scope now delegates the secondary stack management to an
enclosing scope if there is no suitable context to wrap. This ensures that
the requirement to manage the secondary stack is not lost when the scope was
established for that purpose in mind.
3) A previous mechanism which examined the definition of a type (recursively)
to determine whether the type will involve the secondary stack was removed
because a) the mechanism could not detect this need with certainty, and b) the
trigger for secondary stack usage is now moved to the resolution of function
calls, which is always accurate.
------------
-- Source --
------------
-- types.ads
with Ada.Finalization; use Ada.Finalization;
package Types is
type Ctrl is new Controlled with record
Id : Integer;
end record;
procedure Initialize (Obj : in out Ctrl);
function Make_Ctrl return Ctrl;
function Make_Ctrl_From (Obj : Ctrl) return Ctrl;
type Constr is array (1 .. 3) of Ctrl;
type Unconstr is array (Integer range <>) of Ctrl;
function Make_Constr return Constr;
function Make_Unconstr (Low : Integer; High : Integer) return Unconstr;
type Rec_1 is new Controlled with record
Comp : Ctrl := Make_Ctrl;
end record;
type Rec_2 is new Controlled with record
Comp : Ctrl := Make_Ctrl_From (Make_Ctrl);
end record;
type Rec_3 is new Controlled with record
Comp : Constr := Make_Constr;
end record;
type Rec_4 is new Controlled with record
Comp : Unconstr (1 .. 3) := Make_Unconstr (1, 3);
end record;
type Rec_5 is record
Comp : Integer := 1 + Make_Ctrl.Id;
end record;
type Rec_6 is record
Comp : Boolean := (for all X in 1 .. Make_Ctrl.Id =>
X = Make_Ctrl.Id);
end record;
end Types;
-- types.adb
package body Types is
Id_Gen : Integer := 0;
procedure Initialize (Obj : in out Ctrl) is
begin
Id_Gen := Id_Gen + 1;
Obj.Id := Id_Gen;
end Initialize;
function Make_Constr return Constr is
Result : constant Constr := (others => Make_Ctrl);
begin
return Result;
end Make_Constr;
function Make_Ctrl return Ctrl is
Result : Ctrl;
begin
return Result;
end Make_Ctrl;
function Make_Ctrl_From (Obj : Ctrl) return Ctrl is
Result : Ctrl;
begin
Result.Id := Obj.Id;
return Result;
end Make_Ctrl_From;
function Make_Unconstr (Low : Integer; High : Integer) return Unconstr is
Result : constant Unconstr (Low .. High) := (others => Make_Ctrl);
begin
return Result;
end Make_Unconstr;
end Types;
-- maker.ads
generic
type Obj_Typ is private;
procedure Maker (Count : Positive);
-- maker.adb
procedure Maker (Count : Positive) is
procedure Create is
Obj : Obj_Typ;
pragma Warnings (Off, Obj);
begin null; end Create;
begin
for Iter in 1 .. Count loop
Create;
end loop;
end Maker;
-- leaks.adb
with Maker;
with Types; use Types;
with Maker;
with Types; use Types;
procedure Leaks is
procedure Make_1 is new Maker (Rec_1);
procedure Make_2 is new Maker (Rec_2);
procedure Make_3 is new Maker (Rec_3);
procedure Make_4 is new Maker (Rec_4);
procedure Make_5 is new Maker (Rec_5);
procedure Make_6 is new Maker (Rec_6);
begin
Make_1 (5_000);
Make_2 (5_000);
Make_3 (5_000);
Make_4 (5_000);
Make_5 (5_000);
Make_6 (5_000);
end Leaks;
----------------------------
-- Compilation and output --
----------------------------
$ gnatmake -q leaks.adb
$ valgrind ./leaks > leaks.txt 2>&1
$ grep -c "still reachable" leaks.txt
0
2018-01-11 Hristian Kirtchev <kirtchev@adacore.com>
gcc/ada/
* exp_aggr.adb (Convert_Aggr_In_Object_Decl): Update the call to
Establish_Transient_Scope.
(Convert_To_Assignments): Update the call to Establish_Transient_Scope.
(Expand_Array_Aggregate): Update the call to Establish_Transient_Scope.
* exp_ch6.adb (Expand_Call_Helper): Update the call to
Establish_Transient_Scope.
(Make_Build_In_Place_Call_In_Object_Declaration): Update the call to
Establish_Transient_Scope.
* exp_ch7.adb (Establish_Transient_Scope): Restructured. Delegate the
management of the secondary stack to an enclosing scope if there is no
suitable construct to wrap, and the transient scope was intended to
manage the secondary stack.
(Find_Node_To_Be_Wrapped): Restructured. A case_statement_alternative
is a valid boundary for a transient expression which comes from the
statements of the alternative, otherwise alternatives cannot be
wrapped. Assignments of controlled objects which have controlled
actions suppressed now stop the traversal as there is no point in
looking for an enclosing construct. Add several N_xxx_Body choices to
the termination conditions for completeness.
* exp_ch7.ads (Establish_Transient_Scope): Update the parameter profile
and the associated comment on usage.
* exp_smem.adb (Add_Shared_Var_Lock_Procs): Update the call to
Establish_Transient_Scope.
(Add_Write_After): Update the call to Establish_Transient_Scope.
* sem_res.adb (Check_Initialization_Call): Removed.
(Resolve_Actuals): Account for additional cases where finalization
actions are required by utilizing predicate Needs_Finalization rather
than Is_Controlled.
(Resolve_Call): Type initialization procedures can now utilize
transient scopes to manage the secondary stack, thus preventing leaks
during initialization. Remove the previous kludgy algorithm which
attempts to manage the secondary stack at the object creation site.
From-SVN: r256513
Jerome Lambourg [Thu, 11 Jan 2018 08:53:52 +0000 (08:53 +0000)]
[Ada] QNX: various runtime fixes for file I/O, timers, timezone
2018-01-11 Jerome Lambourg <lambourg@adacore.com>
gcc/ada/
* libgnat/g-soliop__qnx.ads: New.
* adaint.c, adaint.h, cstreams.c, s-oscons-tmplt.c, sysdep.c: Update
for QNX.
From-SVN: r256512
Bob Duff [Thu, 11 Jan 2018 08:53:48 +0000 (08:53 +0000)]
[Ada] Null procedures not allowed in protected definitions
The syntax rules do not allow null procedures in protected definitions. This
patch fixes a bug that accidentally allowed them.
2018-01-11 Bob Duff <duff@adacore.com>
gcc/ada/
* par-ch9.adb (P_Protected_Operation_Declaration_Opt): Give an error if
a null procedure occurs in a protected definition.
gcc/testsuite/
* gnat.dg/protected_null.adb: New testcase.
From-SVN: r256511
Bob Duff [Thu, 11 Jan 2018 08:53:36 +0000 (08:53 +0000)]
[Ada] Minor reformatting
2018-01-11 Bob Duff <duff@adacore.com>
gcc/ada/
* binderr.ads, namet.ads: Minor reformatting.
From-SVN: r256510
Bob Duff [Thu, 11 Jan 2018 08:53:32 +0000 (08:53 +0000)]
[Ada] Improve documentation of xml2gnat
2018-01-11 Bob Duff <duff@adacore.com>
gcc/ada/
* doc/gnat_ugn/gnat_utility_programs.rst: Improve documentation of
xml2gnat.
From-SVN: r256509
Bob Duff [Thu, 11 Jan 2018 08:53:27 +0000 (08:53 +0000)]
[Ada] gnatbind -f switch gives an error for duplicates
If the -felab-order.txt switch is given to gnatbind, and there are duplicate
unit names in elab-order.txt, an error will be given.
The following test should get errors:
this (spec) <-- that (body)
error: elab-order.txt:5: duplicate unit name "this (spec)" from line 1
error: elab-order.txt:7: duplicate unit name "that (body)" from line 3
gnatmake: *** bind failed.
Content of elab-order.txt (7 lines):
this%s
that%b
this (spec)
that%b
gnatmake -q -f -g -O0 -gnata that-main.adb -bargs -felab-order.txt
package body That is
end That;
package That is
pragma Elaborate_Body;
end That;
with This, That;
procedure That.Main is
begin
null;
end That.Main;
package body This is
end This;
package This is
pragma Elaborate_Body;
end This;
2018-01-11 Bob Duff <duff@adacore.com>
gcc/ada/
* binde.adb (Force_Elab_Order): Give an error if there are duplicate
unit names.
From-SVN: r256508
Ed Schonberg [Thu, 11 Jan 2018 08:53:15 +0000 (08:53 +0000)]
[Ada] Crash on expression function as completion, with implicit dereference
An implicit dereference freezes the corresponding designated type. Most
implicit dereferences are made explicit during expansion, but this is not the
case for a dispatching call where the the controlling parameter and the
corresponding controlling argument are access to a tagged type. In that case,
to enforce the rule that an expression function that is a completion freezes
type references within, we must locate controlling arguments of an access type
and freeze explicitly the corresponding designated type.
2018-01-11 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* sem_ch6.adb (Freeze_Expr_Types): If an access value is the
controlling argument of a dispatching call. freeze the corresponding
designated type.
gcc/testsuite/
* gnat.dg/expr_func3.adb, gnat.dg/expr_func3.ads: New testcase.
From-SVN: r256507
Ben Brosgol [Thu, 11 Jan 2018 08:52:59 +0000 (08:52 +0000)]
[Ada] Add Sphinx option -W to treat warnings as errors
2018-01-11 Ben Brosgol <brosgol@adacore.com>
gcc/ada/
* doc/Makefile: Add Sphinx option -W to treat warnings as errors.
From-SVN: r256506
Ben Brosgol [Thu, 11 Jan 2018 08:52:55 +0000 (08:52 +0000)]
[Ada] Minor type/wording corrections
2018-01-11 Ben Brosgol <brosgol@adacore.com>
gcc/ada/
* doc/gnat_rm/implementation_defined_aspects.rst: Minor type/wording
corrections.
* gnat_rm.texi: Regenerate.
From-SVN: r256505
Ed Schonberg [Thu, 11 Jan 2018 08:52:51 +0000 (08:52 +0000)]
[Ada] Warning on use of predefined operations on an actual fixed-point type
The compiler warns when a generic actual is a fixed-point type, because
arithmetic operations in the instance will use the predefined operations on
it, even if the type has user-defined primitive operations (unless formsl
surprograms for these operations appear in the generic). This patch refines
this warning to exclude the case where the formsal type is private, because
in this case there can be no suspicious arithmetic operastions in the generic
unit.
2018-01-11 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* sem_ch12.adb (Check_Fixed_Point_Type): Do not apply check if the
formsl type corresponding to the actual fixed point type is private,
because in this case there can be no suspicious arithmetic operations
in the generic unless they reference a formal subprogram. Clarify
warning.
gcc/testsuite/
* gnat.dg/fixedpnt2.adb, gnat.dg/fixedpnt2.ads: New testcase.
From-SVN: r256504
Javier Miranda [Thu, 11 Jan 2018 08:52:47 +0000 (08:52 +0000)]
exp_util.adb (Remove_Side_Effects): No action done for functions returning class-wide types since it requires...
2018-01-11 Javier Miranda <miranda@adacore.com>
gcc/ada/
* exp_util.adb (Remove_Side_Effects): No action done for functions
returning class-wide types since it requires generating code using
'reference and the CCG target has no secondary stack.
* gnat1drv.adb: Disable building static dispatch tables when generating
C code.
From-SVN: r256503
Piotr Trojanek [Thu, 11 Jan 2018 08:52:43 +0000 (08:52 +0000)]
[Ada] Annotate standard File_Type with Default_Initial_Condition (for SPARK)
GNATprove was emitting spurious checks about objects of the File_Type being
uninitialized and there was no easy to fix that (those checks could only be
silenced by pragma Annotate or by hiding File_Type behind as SPARK wrapper).
Now the full view of File_Type is annotated with Default_Initial_Condition
and GNATprove knows that objects of that type are default-initialized. The
default initialization is implicitly defined in the Ada RM (as indeed
there is no procedure that would take an IN OUT parameter of that type).
Semantics of Ada programs shall not be affected by these annotations,
so no frontend test is provided. It only affects GNATprove.
2018-01-11 Piotr Trojanek <trojanek@adacore.com>
gcc/ada/
* libgnat/a-direio.ads, libgnat/a-sequio.ads, libgnat/a-ststio.ads,
libgnat/a-textio.ads, libgnat/a-witeio.ads, libgnat/a-ztexio.ads
(File_Type): Add Default_Initial_Condition aspect.
From-SVN: r256502
Pascal Obry [Thu, 11 Jan 2018 08:52:39 +0000 (08:52 +0000)]
[Ada] New implementation for Normalize_Pathname
This implementation fixes an issue on Windows where a single drive letter
was not followed by a directory separator. On Windows the following
program:
with Ada.Text_IO; use Ada.Text_IO;
with GNAT.OS_Lib; use GNAT.OS_Lib;
procedure Main is
begin
Put_Line (Normalize_Pathname ("c:\"));
Put_Line (Normalize_Pathname ("c:\toto\.."));
end Main;
Must output:
C:\
C:\
2018-01-11 Pascal Obry <obry@adacore.com>
gcc/ada/
* libgnat/s-os_lib.adb (Normalize_Pathname): New implementation.
From-SVN: r256501
Bob Duff [Thu, 11 Jan 2018 08:52:20 +0000 (08:52 +0000)]
[Ada] Update gnatpp documentation after engine change
2018-01-11 Bob Duff <duff@adacore.com>
gcc/ada/
* doc/gnat_ugn/gnat_utility_programs.rst: Rewrite gnatpp documentation
to match what the Libadalang-based version does.
* doc/gnat_ugn/about_this_guide.rst: Update reference.
From-SVN: r256500
Hristian Kirtchev [Thu, 11 Jan 2018 08:52:16 +0000 (08:52 +0000)]
[Ada] Secondary stack leak due to controlled component
This pach modifies the expansion related to initialization calls and secondary
stack usage to inspec the components of a type derived from Limited_Controlled
or Controlled. Previously controlled types were treated as never utilizing the
secondary stack, however this is not true because a controlled type may contain
a component initialized by a function which returns on the secondary stack.
------------
-- Source --
------------
-- pack1.ads
with Ada.Finalization; use Ada.Finalization;
package Pack1 is
type Ctrl is new Controlled with record
Comp : Integer;
end record;
function Make_Ctrl return Ctrl;
end Pack1;
-- pack1.adb
package body Pack1 is
Empty : constant Ctrl := (Controlled with Comp => 123);
function Make_Ctrl return Ctrl is
begin
return Empty;
end Make_Ctrl;
end Pack1;
-- pack2.ads
with Ada.Finalization; use Ada.Finalization;
with Pack1; use Pack1;
package Pack2 is
type Ctrl_Wrap is new Controlled with record
Comp : Ctrl := Make_Ctrl;
end record;
end Pack2;
-- main.adb
with Pack2; use Pack2;
procedure Main is
procedure Make_Ctrl_Wrap is
Obj : Ctrl_Wrap;
pragma Warnings (Off, Obj);
begin null; end Make_Ctrl_Wrap;
begin
for Iter in 1 .. 10_000 loop
Make_Ctrl_Wrap;
end loop;
end Main;
----------------------------
-- Compilation and output --
----------------------------
$ gnatmake -q main.adb
$ valgrind ./main >& valgrind.log
$ grep -c "still reachable" valgrind.log
0
2018-01-11 Hristian Kirtchev <kirtchev@adacore.com>
gcc/ada/
* sem_res.adb (Uses_SS): A controlled type requires the secondary stack
if it contains at least one component declaration employing a function
call returning on the secondary stack.
From-SVN: r256499
Yannick Moy [Thu, 11 Jan 2018 08:52:12 +0000 (08:52 +0000)]
[Ada] Update description of restriction SPARK_05 with SPARK 2014
2018-01-11 Yannick Moy <moy@adacore.com>
gcc/ada/
* doc/gnat_rm/standard_and_implementation_defined_restrictions.rst:
Update description of restriction SPARK_05 with SPARK 2014.
* gnat_rm.texi: Regenerate.
From-SVN: r256498
Vasiliy Fofanov [Thu, 11 Jan 2018 08:51:56 +0000 (08:51 +0000)]
[Ada] Minor layout fix in documentation sources
2018-01-11 Vasiliy Fofanov <fofanov@adacore.com>
gcc/ada/
* doc/gnat_ugn/gnat_utility_programs.rst: Fix layout.
From-SVN: r256497
Hristian Kirtchev [Thu, 11 Jan 2018 08:51:51 +0000 (08:51 +0000)]
[Ada] Minor reformatting
2018-01-11 Hristian Kirtchev <kirtchev@adacore.com>
gcc/ada/
* exp_aggr.adb, exp_ch9.adb, exp_util.adb, sem_aggr.adb, sem_ch3.adb,
sem_res.adb, sem_util.adb: Minor reformatting.
From-SVN: r256496
Ed Schonberg [Thu, 11 Jan 2018 08:51:47 +0000 (08:51 +0000)]
[Ada] Handling of pragma Predicate
This patch fixes an omission in the processing of pragma Predicate, which
should have the same semantics as the corresponding aspect, which is more
commonly used.
Executing
gnatmake -q -gnata predicate
predicate
must yield:
Even1 violated
Even2 violated
----
with Text_IO; use Text_IO;
procedure Predicate is
begin
begin
declare
subtype Even1 is Integer;
pragma Predicate (Even1, Even1 mod 2 = 0);
X1 : constant Even1 := 1; -- This should fail first
begin
null;
end;
exception
when Others => Put_Line ("Even1 violated");
end;
begin
declare
subtype Even2 is Integer with Predicate => Even2 mod 2 = 0;
X2 : constant Even2 := 1; -- This should fail later, if reached
begin
null;
end;
exception
when Others => Put_Line ("Even2 violated");
end;
end;
2018-01-11 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* sem_prag.adb (Analyze_Pragma, case Predicate): Indicate that the type
has a delayed aspect which must be processed at the point the type is
frozen. This mimics what is done when the predicate is provided by a
source aspect.
From-SVN: r256495
Doug Rupp [Thu, 11 Jan 2018 08:51:43 +0000 (08:51 +0000)]
[Ada] Enable sigtramp for aarch64-vx7
2018-01-11 Doug Rupp <rupp@adacore.com>
gcc/ada/
* init.c (vxworks): Add macro checks for __aarch64__.
From-SVN: r256494
Hristian Kirtchev [Thu, 11 Jan 2018 08:51:39 +0000 (08:51 +0000)]
[Ada] Different runtime behavior of Predicate_Failure
This patch corrects the generation of predicate checks to handle the case where
Predicate_Failure appears as a pragma.
------------
-- Source --
------------
-- main.adb
with Ada.Assertions; use Ada.Assertions;
with Ada.Exceptions; use Ada.Exceptions;
with Ada.Text_IO; use Ada.Text_IO;
procedure Main is
subtype Even_Asp is Integer
with Predicate => Even_Asp mod 2 = 0,
Predicate_Failure => "Even_Asp failed";
subtype Even_Prag is Integer
with Predicate => Even_Prag mod 2 = 0;
pragma Predicate_Failure (Even_Prag, "Even_Prag failed");
begin
begin
declare
Val : constant Even_Asp := 1;
begin
Put_Line ("ERROR: Even_Asp: did not fail");
end;
exception
when AE : Assertion_Error => Put_Line (Exception_Message (AE));
when others => Put_Line ("ERROR: Even_Asp: raised unexpected error");
end;
begin
declare
Val : constant Even_Prag := 3;
begin
Put_Line ("ERROR: Even_Prag: did not fail");
end;
exception
when AE : Assertion_Error => Put_Line (Exception_Message (AE));
when others => Put_Line ("ERROR: Even_Prag: raised unexpected error");
end;
end Main;
----------------------------
-- Compilation and output --
----------------------------
$ gnatmake -q main.adb
$ ./main
Even_Asp failed
Even_Prag failed
2018-01-11 Hristian Kirtchev <kirtchev@adacore.com>
gcc/ada/
* exp_util.adb (Add_Failure_Expression): New routine.
(Make_Predicate_Check): Reimplement the handling of Predicate_Failure.
* sem_util.adb (Is_Current_Instance): Code cleanup.
From-SVN: r256493
Patrick Bernardi [Thu, 11 Jan 2018 08:51:23 +0000 (08:51 +0000)]
[Ada] Integer overflow in SS_Allocate
This patch imposes a new check and rewrites existing ones to ensure operations
involving SS_Ptr do not cause an Integer overflow. The Default_Sec_Stack_Size
function was removed in the process to simplify System.Parameter.
SS_Ptr was derived from the integer System.Parameters.Size_Type to ease the
creation of objects of type SS_Stack by the binder and imposes a maximum
secondary stack size of 2GB. In most cases, the user will not hit this limit as
they cannot specify task stack sizes of more than 2GB via the Storage_Size and
Secondary_Stack_Size pragmas. Additionally, most operating systems limit the
primary stack size to less than 2GB, with defaults under 10MB. Linux is the
rare exception where the user can unbound the primary stack.
Executing the following:
gnatmake -q overflow
./overflow
must yield:
raised STORAGE_ERROR : s-secsta.adb:140 explicit raise
-- overflow.adb:
with String_Pack;
procedure Overflow is
begin
null;
end Overflow;
-- string_pack.ads:
package String_Pack is
function Return_Big_String return String;
end String_Pack;
-- string_pack.adb:
with Ada.Strings.Fixed; use Ada.Strings.Fixed;
package body String_Pack is
function Return_Big_String return String is
begin
return Integer'Last * "P";
end Return_Big_String;
S : String := Return_Big_String;
end String_Pack;
2018-01-11 Patrick Bernardi <bernardi@adacore.com>
gcc/ada/
* libgnat/s-parame*.adb, libgnat/s-parame*.ads: Remove unneeded
Default_Sec_Stack_Size.
* libgnat/s-secsta.adb (SS_Allocate): Handle the fixed secondary stack
limit check so that the integer index does not overflow. Check the
dynamic stack allocation does not cause the secondary stack pointer to
overflow.
(SS_Info): Align colons.
(SS_Init): Cover the case when bootstraping with an old compiler that
does not set Default_SS_Size.
From-SVN: r256492
Ed Schonberg [Thu, 11 Jan 2018 08:51:18 +0000 (08:51 +0000)]
[Ada] Illegal protected calls in inherited pre/postconditions
AI12-0166 specifies that it is illegal for a pre/postcondition of a
protected operation to contain an internal call to a protected function.
This patch completes the implementation of this rule in the case the
condition is inherited from a classwide condition of an abstract operation
of an interface type.
Compiling inheritpo.adb must yield:
inheritpo.ads:9:04: instantiation error at line 6
inheritpo.ads:9:04: internal call to "F" cannot appear
in inherited precondition of protected operation "P"
inheritpo.ads:9:04: instantiation error at line 7
inheritpo.ads:9:04: internal call to "F" cannot appear
in inherited precondition of protected operation "P"
--
package InheritPO is
type T is limited interface;
function F (X : T) return Boolean is abstract;
procedure P (X : in out T) is abstract with
Pre'Class => X.F,
Post'Class => X.F;
protected type PT is new T with
overriding function F return Boolean;
overriding procedure P;
end PT;
end InheritPO;
----
package body InheritPO is
protected body PT is
function F return Boolean is begin return True; end;
procedure P is begin null; end;
end PT;
end InheritPO;
2018-01-11 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* sem_ch3.adb (Add_Internal_Interface_Entities): When checking the
legality of an inherited operation that may require overriding, ignore
primitive_wrappers that correspond to explicit operations that override
an interface primitive.
* exp_util.adb (Build_Class_Wide_Expression, Replace_Entity): If the
operation to which the class-wide expression applies is a protected op.
with a primitive_wrapper, verify that the updated inherited expression
does not contain an internal call to a protected function. This
completes the implementation of AI12-0166.
From-SVN: r256491
Hristian Kirtchev [Thu, 11 Jan 2018 08:51:13 +0000 (08:51 +0000)]
[Ada] Encoding of with clauses in ALI files
This patch modifies the encodings of with clauses in ALI files to adhere to the
existing API. The encodigs are as follows:
* Explicit with clauses are encoded on a 'W' line (same as before).
* Implicit with clauses for ancestor units are encoded on a 'W' line (same
as before).
* Limited_with clauses are encoded on a 'Y' line (same as before).
* ABE and RTSfind-related with clauses are encoded on a 'Z' line.
------------
-- Source --
------------
-- case_10_func.adb
function Case_10_Func return Boolean is
begin
return True;
end Case_10_Func;
-- case_10_gen_func.ads
generic
function Case_10_Gen_Func return Boolean;
-- case_10_gen_func.adb
function Case_10_Gen_Func return Boolean is
begin
return True;
end Case_10_Gen_Func;
-- case_10_tasks.ads
package Case_10_Tasks is
task type Task_Typ is
end Task_Typ;
end Case_10_Tasks;
-- case_10_tasks.adb
package body Case_10_Tasks is
task body Task_Typ is begin null; end Task_Typ;
end Case_10_Tasks;
-- case_10_gen.ads
with Case_10_Func;
with Case_10_Gen_Func;
with Case_10_Tasks;
generic
package Case_10_Gen is
Val : constant Boolean := Case_10_Func;
function Inst is new Case_10_Gen_Func;
Tsk : Case_10_Tasks.Task_Typ;
end Case_10_Gen;
-- case_10.ads
with Case_10_Gen;
package Case_10 is
package Inst is new Case_10_Gen;
end Case_10;
----------------------------
-- Compilation and output --
----------------------------
$ gcc -c case_10.ads
$ grep "W " case_10.ali | sort
$ grep "Z " case_10.ali | sort
W case_10_gen%s case_10_gen.ads case_10_gen.ali
Z case_10_func%b case_10_func.adb case_10_func.ali
Z case_10_gen_func%s case_10_gen_func.adb case_10_gen_func.ali ED
Z case_10_tasks%s case_10_tasks.adb case_10_tasks.ali AD
Z system.soft_links%s s-soflin.adb s-soflin.ali
Z system.tasking%s s-taskin.adb s-taskin.ali
Z system.tasking.stages%s s-tassta.adb s-tassta.ali
2018-01-11 Hristian Kirtchev <kirtchev@adacore.com>
gcc/ada/
* ali.adb: Document the remaining letters available for ALI lines.
(Scan_ALI): A with clause is internal when it is encoded on a 'Z' line.
* ali.ads: Update type With_Record. Field
Implicit_With_From_Instantiation is no longer in use. Add field
Implicit_With.
* csinfo.adb (CSinfo): Remove the setup for attribute
Implicit_With_From_Instantiation.
* lib-writ.adb (Collect_Withs): Correct the logic which marks a unit as
either implicitly or explicitly withed.
(Is_Implicit_With_Clause): New routine.
(Write_ALI): Rename array Implicit_With to Has_Implicit_With to avoid
confusion with the with clause attribute by the same name.
(Write_With_Lines): Update the emission of 'W', 'Y', and 'Z' headers.
* rtsfind.adb (Maybe_Add_With): Code cleanup.
* sem_ch8.adb (Present_System_Aux): Code cleanup.
* sem_ch10.adb (Expand_With_Clause): Mark the with clause as generated
for a parent unit.
(Implicit_With_On_Parent): Mark the with clause as generated for a
parent unit.
* sem_ch12.adb (Inherit_Context): With clauses inherited by an
instantiation are no longer marked as Implicit_With_From_Instantiation
because they are already marked as implicit.
* sem_elab.adb (Ensure_Prior_Elaboration_Static): Remove the kludge
which marks implicit with clauses as related to an instantiation.
* sinfo.adb (Implicit_With_From_Instantiation): Removed.
(Parent_With): New routine.
(Set_Implicit_With_From_Instantiation): Removed.
(Set_Parent_With): New routine.
* sinfo.ads: Update the documentation of attribute Implicit_With.
Remove attribute Implicit_With_From_Instantiation along with
occurrences in nodes. Add attribute Parent_With along with occurrences
in nodes.
(Implicit_With_From_Instantiation): Removed along with pragma Inline.
(Parent_With): New routine along with pragma Inline.
(Set_Implicit_With_From_Instantiation): Removed along with pragma Inline.
(Set_Parent_With): New routine along with pragma Inline.
From-SVN: r256490
Hristian Kirtchev [Thu, 11 Jan 2018 08:51:09 +0000 (08:51 +0000)]
[Ada] Finding proper scope when inside entry body
This patch modifies routine Find_Enclosing_Scope which obtains the scope of an
arbitrary node to return the unique defining entity of an enclosing body. This
automatically takes care of the following corner cases:
* The body is a subprogram body which does not complete a previous
declaration. In this case the proper scope is the entity of the
body.
* The body is an entry body. Due to a limitation in the AST, the
entry body does not store its correcponsing spec, but utilizes a
roundabout way of obtaining it. Regardless of the limitation, the
proper scope is the entity of the entry declaration.
The issue was discovered during the development of the GNATprove tool and
is not visible to end users. No simple test is available because this would
require a debug session.
2018-01-11 Hristian Kirtchev <kirtchev@adacore.com>
gcc/ada/
* sem_util.adb (Find_Enclosing_Scope): Return the unique defining
entity when the enclosing construct is a body.
From-SVN: r256489
Patrick Bernardi [Thu, 11 Jan 2018 08:50:43 +0000 (08:50 +0000)]
[Ada] Aspect/pragma Secondary_Stack_Size can evaluate non-literals as zero
This patch fixes the problem of aspect/pragma Secondary_Stack_Size expressions
with non-literals evaluating as zero in static secondary stacks allocations.
The aspect Secondary_Stack_Size is now converted to a pragma instead of an
attribute as the attribute does not have visibility on the discriminant.
Additionally, the discriminant of the corresponding record type is now
referenced if the pragma expression contains a discriminant.
No simple test available as the problem only impacts programs when
System.Parameters.Sec_Stack_Dynamic = False
2018-01-11 Patrick Bernardi <bernardi@adacore.com>
gcc/ada/
* exp_ch9.adb (Expand_N_Task_Type_Declaration): Simplified
Secondary_Stack_Size handling as a pragma is now generated for the
corresponding aspect instead of an attribute. Pragma expression is
relocated instead of evaluated. Discriminant of the corresponding
record type is referenced rather than the type discriminant.
(Create_Secondary_Stack_For_Task, Make_Task_Create_Call): Update
Secondary_Stack_Size rep item checks to only look for the pragma rep.
* sem_ch13.adb (Analyze_One_Aspect): Transform
Aspect_Secondary_Stack_Size into a pragma instead of an attribute
because the attribute does not have visibility on a task type's
discriminants when the type's definition is expanded.
(Analyze_Attribute_Definition_Clause): Remove handling of
Attribute_Secondary_Stack_Size.
* snames.adb-tmpl, snames.ads-tmpl: Remove
Attribute_Secondary_Stack_Size, no longer used.
From-SVN: r256488
Justin Squirek [Thu, 11 Jan 2018 08:50:38 +0000 (08:50 +0000)]
[Ada] Minor reformatting
2018-01-11 Justin Squirek <squirek@adacore.com>
gcc/ada/
* sem_ch8.adb: Minor comment fix.
From-SVN: r256487
Hristian Kirtchev [Thu, 11 Jan 2018 08:50:34 +0000 (08:50 +0000)]
[Ada] Missing finalization in case expression
This patch modifies the processing of controlled transient objects within case
expressions represented by an Expression_With_Actions node. The inspection of
an individual action must continue in case it denotes a complex expression,
such as a case statement, which in turn may contain additional transients.
------------
-- Source --
------------
-- pack.ads
with Ada.Finalization; use Ada.Finalization;
package Pack is
function Next_Id return Natural;
type Ctrl is new Controlled with record
Id : Natural := 0;
end record;
procedure Adjust (Obj : in out Ctrl);
procedure Finalize (Obj : in out Ctrl);
procedure Initialize (Obj : in out Ctrl);
function New_Ctrl return Ctrl;
Empty : constant Ctrl := (Controlled with Id => 1);
type Enum is (One, Two, Three);
type Ctrl_Rec is record
Comp : Ctrl;
Kind : Enum;
end record;
procedure Proc (Obj : Ctrl_Rec);
end Pack;
-- pack.adb
with Ada.Text_IO; use Ada.Text_IO;
package body Pack is
Id_Gen : Natural := 1;
procedure Adjust (Obj : in out Ctrl) is
Old_Id : constant Natural := Obj.Id;
New_Id : Natural;
begin
if Old_Id = 0 then
Put_Line (" adj: ERROR already finalized");
else
New_Id := Old_Id * 100;
Put_Line (" adj: " & Old_Id'Img & " ->" & New_Id'Img);
Obj.Id := New_Id;
end if;
end Adjust;
procedure Finalize (Obj : in out Ctrl) is
Old_Id : constant Natural := Obj.Id;
begin
if Old_Id = 0 then
Put_Line (" fin: ERROR already finalized");
else
Put_Line (" fin: " & Old_Id'Img);
Obj.Id := 0;
end if;
end Finalize;
procedure Initialize (Obj : in out Ctrl) is
New_Id : constant Natural := Next_Id;
begin
Put_Line (" ini: " & New_Id'Img);
Obj.Id := New_Id;
end Initialize;
procedure Proc (Obj : Ctrl_Rec) is
begin
Put_Line ("proc : " & Obj.Comp.Id'Img);
end Proc;
function Next_Id return Natural is
begin
Id_Gen := Id_Gen + 1;
return Id_Gen;
end Next_Id;
function New_Ctrl return Ctrl is
Obj : Ctrl;
begin
return Obj;
end New_Ctrl;
end Pack;
-- main.adb
with Ada.Text_IO; use Ada.Text_IO;
with Pack; use Pack;
procedure Main is
procedure Proc_Case_Expr (Mode : Enum) is
begin
Put_Line ("proc_case_expr: " & Mode'Img);
Proc (case Mode is
when One => (Kind => Two, Comp => Empty),
when Two => (Kind => Three, Comp => Empty),
when Three => (Kind => One, Comp => New_Ctrl));
end Proc_Case_Expr;
procedure Proc_If_Expr (Mode : Enum) is
begin
Put_Line ("proc_if_expr: " & Mode'Img);
Proc ((if Mode = One then (Kind => Two, Comp => Empty)
elsif Mode = Two then (Kind => Three, Comp => Empty)
else (Kind => One, Comp => New_Ctrl)));
end Proc_If_Expr;
begin
Proc_Case_Expr (One);
Proc_Case_Expr (Two);
Proc_Case_Expr (Three);
Proc_If_Expr (One);
Proc_If_Expr (Two);
Proc_If_Expr (Three);
end Main;
----------------------------
-- Compilation and output --
----------------------------
$ gnatmake -q main.adb
$ ./main
proc_case_expr: ONE
adj: 1 -> 100
proc : 100
fin: 100
proc_case_expr: TWO
adj: 1 -> 100
proc : 100
fin: 100
proc_case_expr: THREE
ini: 2
adj: 2 -> 200
fin: 2
adj: 200 -> 20000
proc : 20000
fin: 20000
fin: 200
proc_if_expr: ONE
adj: 1 -> 100
proc : 100
fin: 100
proc_if_expr: TWO
adj: 1 -> 100
proc : 100
fin: 100
proc_if_expr: THREE
ini: 3
adj: 3 -> 300
fin: 3
adj: 300 -> 30000
proc : 30000
fin: 30000
fin: 300
fin: 1
2018-01-11 Hristian Kirtchev <kirtchev@adacore.com>
gcc/ada/
* exp_ch4.adb (Process_Action): Do not abandon the inspection of an
individual action because the action may denote a complex expression,
such as a case statement, which in turn may contain additional
transient objects.
From-SVN: r256486
Ed Schonberg [Thu, 11 Jan 2018 08:50:29 +0000 (08:50 +0000)]
[Ada] Crash on iterated_component_association in expression function
This patch improves on the handling of the
Ada2020 construct Iterated_
Component_Association in various contexts, when the expression involved
is a record or array aggregate.
Executing:
gnatmake -gnatX -q main
./main
must yield:
123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ
----
with Text_IO; use Text_IO;
with Exfor; use Exfor;
procedure Main is
Map : String := Table_ASCII;
begin
Put_Line (Map (50..91));
end;
----
package Exfor is
function Table_ASCII return String is
(for I in 1 .. Character'Pos (Character'Last) + 1 => Character'Val(I-1));
end Exfor;
2018-01-11 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* sem_aggr.adb (Resolve_Iterated_Component_Association): Perform
analysis on a copy of the expression with a copy of the index variable,
because full expansion will rewrite construct into a loop with the
original loop variable.
* exp_aggr.adb (Gen_Assign): Defer analysis and resolution if the
expression is an iterated component association. Full analysis takes
place when construct is rewritten as a loop.
(In_Place_Assign_OK, Safe_Component): An iterated_component_association
is not safe for in-place assignment.
* sem_util.adb (Remove_Entity): Handle properly the case of an isolated
entity with no homonym and no other entity in the scope.
From-SVN: r256485
Justin Squirek [Thu, 11 Jan 2018 08:50:25 +0000 (08:50 +0000)]
[Ada] Wrong column in sloc of "expect name" error for loop variant
This patch corrects error messages printed when using the pragma Loop_Variant
without a named argument from having an incorrect column number in some cases.
2018-01-11 Justin Squirek <squirek@adacore.com>
gcc/ada/
* sem_prag.adb (Analyze_Pragma:Pragma_Loop_Variant): Modify error
message to be printed on the pragma argument identifier.
gcc/testsuite/
* gnat.dg/loopvar.adb: New testcase.
From-SVN: r256484
Hristian Kirtchev [Thu, 11 Jan 2018 08:50:18 +0000 (08:50 +0000)]
[Ada] Inconsistent scope chain due to quantified expression
This patch corrects the minor decoration performed on invariant procedures in
case the procedure is not inserted into the tree and analyzed. The decoration
now constructs a proper first/next/last entity chain containing the single
formal parameter which represents the object of the related type. The chain
then ensures that any other entities generated by the [pre]analysis of the
invariant expression will be properly added to the chain.
The issue was discovered during the development of the GNATprove tool and
is not visible to end users. No simple test is available because this would
require a debug session.
2018-01-11 Hristian Kirtchev <kirtchev@adacore.com>
gcc/ada/
* exp_util.adb (Build_Invariant_Procedure_Declaration): Set the last
entity of the generated invariant procedure in order to construct a
proper entity chain.
From-SVN: r256483