Eric Botcazou [Tue, 26 Feb 2019 08:12:21 +0000 (08:12 +0000)]
re PR ada/81956 (call to null procedure not optimized away)
PR ada/81956
Backport from mainline
2017-09-06 Ed Schonberg <schonberg@adacore.com>
* exp_ch6.adb (Expand_Call_Helper): Do not optimize calls to
null procedures when GNAT coverage is used, so that their (empty)
bodies are properly covered.
2017-09-06 Ed Schonberg <schonberg@adacore.com>
* exp_ch6.adb (Expand_Call_Helper): Replace call to null
procedure by a single null statement, after evaluating the
actuals that require it.
Thomas Koenig [Sat, 23 Feb 2019 11:49:47 +0000 (11:49 +0000)]
re PR fortran/71066 (ICE in set_loop_bounds, at fortran/trans-array.c:4680)
2019-02-23 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/71066
Backport from trunk
* trans-decl.c (generate_coarray_sym_init): For an array
constructor in a DATA statement of a coarray variable, set the
rank to 1 to avoid confusion later on. If the constructor
contains only one value, use that for initiailizig.
2019-02-23 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/71066
Backport from trunk
* gfortran.dg/coarray_data_1.f90: New test.
Eric Botcazou [Sat, 23 Feb 2019 10:04:41 +0000 (10:04 +0000)]
re PR ada/89349 (segfault when building GCC 7 & 8 branch with GCC master)
PR ada/89349
Backport from mainline
2018-05-25 Arnaud Charlet <charlet@adacore.com>
* osint.ads (Unknown_Attributes): No longer pretend this is a constant.
(No_File_Info_Cache): Initialize separately.
* osint.adb (No_File_Info_Cache): Update initializer.
Jonathan Wakely [Sat, 23 Feb 2019 01:01:56 +0000 (01:01 +0000)]
PR libstdc++/89446 fix null pointer dereference in char_traits
PR libstdc++/89446
* include/bits/char_traits.h (__constant_char_array): Check index is
in range before dereferencing.
* testsuite/21_strings/basic_string_view/operators/char/89446.cc:
New test.
Martin Liska [Fri, 15 Feb 2019 10:59:02 +0000 (11:59 +0100)]
Backport r268873
2019-02-15 Martin Liska <mliska@suse.cz>
Backport from mainline
2019-02-14 Martin Liska <mliska@suse.cz>
PR rtl-optimization/89242
* dce.c (delete_unmarked_insns): Call free_dominance_info we
process a transformation.
2019-02-15 Martin Liska <mliska@suse.cz>
Backport from mainline
2019-02-14 Martin Liska <mliska@suse.cz>
PR rtl-optimization/89242
* g++.dg/pr89242.C: New test.
Thomas Koenig [Sun, 10 Feb 2019 18:41:03 +0000 (18:41 +0000)]
re PR fortran/71723 ([F08] ICE on invalid pointer initialization)
2019-02-10 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/71723
Backport from trunk
* expr.c (gfc_check_assign): Add argument is_init_expr. If we are
looking at an init expression, issue error if the target is not a
TARGET and we are not looking at a procedure pointer.
* gfortran.h (gfc_check_assign): Add optional argument
is_init_expr.
2019-02-10 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/71723
Backport from trunk
* gfortran.dg/pointer_init_2.f90: Adjust error messages.
* gfortran.dg/pointer_init_6.f90: Likewise.
* gfortran.dg/pointer_init_9.f90: New test.
Eric Botcazou [Fri, 8 Feb 2019 11:08:07 +0000 (11:08 +0000)]
trans.c (Regular_Loop_to_gnu): Replace tests on individual flag_unswitch_loops and flag_tree_loop_vectorize...
* gcc-interface/trans.c (Regular_Loop_to_gnu): Replace tests on
individual flag_unswitch_loops and flag_tree_loop_vectorize switches
with test on global optimize switch.
(Raise_Error_to_gnu): Likewise.
Eric Botcazou [Wed, 6 Feb 2019 23:28:34 +0000 (23:28 +0000)]
backport: decl.c (annotate_value): Tidy up.
Backport from mainline
2017-09-05 Eric Botcazou <ebotcazou@adacore.com>
* gcc-interface/decl.c (annotate_value): Tidy up.
<INTEGER_CST>: Set TCODE instead of recursing.
<COMPONENT_REF>: Set TCODE instead of calling Create_Node manually.
<MULT_EXPR, PLUS_EXPR>: Fold conversions into inner operations.
<BIT_AND_EXPR>: Adjust.
<CALL_EXPR>: Do not fall through.
Kelvin Nilsen [Wed, 6 Feb 2019 21:35:44 +0000 (21:35 +0000)]
backport: rs6000-c.c (altivec-resolve_overloaded_builtin): Change handling of ALTIVEC_BUILTIN_VEC_EXTRACT.
gcc/ChangeLog:
2019-02-06 Kelvin Nilsen <kelvin@gcc.gnu.org>
Backport from mainline.
2019-01-30 Kelvin Nilsen <kelvin@gcc.gnu.org>
* config/rs6000/rs6000-c.c (altivec-resolve_overloaded_builtin):
Change handling of ALTIVEC_BUILTIN_VEC_EXTRACT. Coerce result to
type of vector element when vec_extract is implemented by direct
move.
Backport from mainline.
2019-01-30 Kelvin Nilsen <kelvin@gcc.gnu.org>
* gcc.target/powerpc/vec-extract-schar-1.c: New test.
* gcc.target/powerpc/vec-extract-sint-1.c: New test.
* gcc.target/powerpc/vec-extract-sint128-1.c: New test.
* gcc.target/powerpc/vec-extract-slong-1.c: New test.
* gcc.target/powerpc/vec-extract-sshort-1.c: New test.
* gcc.target/powerpc/vec-extract-uchar-1.c: New test.
* gcc.target/powerpc/vec-extract-uint-1.c: New test.
* gcc.target/powerpc/vec-extract-uint128-1.c: New test.
* gcc.target/powerpc/vec-extract-ulong-1.c: New test.
* gcc.target/powerpc/vec-extract-ushort-1.c: New test.
Thomas Koenig [Tue, 5 Feb 2019 21:23:07 +0000 (21:23 +0000)]
re PR fortran/67679 (-Wunitialized reports on compiler-generated variables)
2019-02-05 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/67679
Backport from trunk
* trans-array.c (gfc_array_allocate): For setting the bounds on
the new array, add a condition for a not previously allocated
variable.
2019-02-05 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/67679
Backport from trunk
* gfortran.dg/warn_undefined_1.f90: New test.
* gfortran.dg/coarray_lock_7.f90: Fix patterns in test.
Paul Thomas [Sun, 3 Feb 2019 18:23:25 +0000 (18:23 +0000)]
backport: re PR fortran/88393 ([OOP] Segfault with type-bound assignment)
2019-02-03 Paul Thomas <pault@gcc.gnu.org>
Backport from trunk
PR fortran/88393
* trans-expr.c (gfc_conv_procedure_call): For derived entities,
passed in parentheses to class formals, invert the order of
copying allocatable components to taking the _data of the
class expression.
2019-02-03 Paul Thomas <pault@gcc.gnu.org>
Backport from trunk
PR fortran/88393
* gfortran.dg/alloc_comp_assign_16.f03 : New test.
Thomas Koenig [Sat, 2 Feb 2019 17:07:40 +0000 (17:07 +0000)]
re PR fortran/88298 (Bogus conversion warning for CSHIFT with -fno-range-check -m64)
2019-02-02 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/88298
Backport from trunk
* arith.c (gfc_int2int): Do not warn if src->do_not_warn is set.
* gfortran.h (gfc_expr): Add flag do_not_warn.
* intrinsic.c (gfc_convert_type_warn): Set expr->do_not_warn if
no warning is desired.
2019-02-02 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/88298
Backport from trunk
* gfortran.dg/warn_conversion_10.f90: New test.
Thomas Koenig [Sat, 2 Feb 2019 16:57:39 +0000 (16:57 +0000)]
re PR fortran/57048 (Handling of C_PTR and C_FUNPTR leads to reject valid)
2019-02-02 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/57048
Backport from trunk
* interface.c (gfc_compare_types): If a derived type and an
integer both have a derived type, and they are identical,
this is a C binding type and compares equal.
2019-02-02 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/57048
Backport from trunk
* gfortran.dg/c_funptr_1.f90: New file.
* gfortran.dg/c_funptr_1_mod.f90: New file.
PR rtl-optimization/89115
* opts.c (default_options_optimization): Reduce
PARAM_MAX_DSE_ACTIVE_LOCAL_STORES by a factor of 10 at -O1.
Make PARAM_LOOP_INVARIANT_MAX_BBS_IN_LOOP reduction relative
to the default.
Kewen Lin [Wed, 30 Jan 2019 08:18:05 +0000 (08:18 +0000)]
backport: [multiple changes]
2019-01-30 Kewen Lin <linkw@gcc.gnu.org>
Backport from mainline.
gcc/
2019-01-17 Kewen Lin <linkw@gcc.gnu.org>
* doc/extend.texi: Add four new prototypes for vec_ld and seven new
prototypes for vec_st.
* config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Add entries
for scalar address type variants of altivec_vec_ld/altivec_vec_st,
mainly on signed/unsigned long long and double.
gcc/testsuite/
2019-01-20 Kewen Lin <linkw@gcc.gnu.org>
* gcc.target/powerpc/altivec_vld_vst_addr.c: Remove, split into
altivec_vld_vst_addr-1.c and altivec_vld_vst_addr-2.c.
* gcc.target/powerpc/altivec_vld_vst_addr-1.c: New test.
* gcc.target/powerpc/altivec_vld_vst_addr-2.c: Ditto.
2019-01-17 Kewen Lin <linkw@gcc.gnu.org>
* gcc.target/powerpc/altivec_vld_vst_addr.c: New test.
Paul Thomas [Sun, 27 Jan 2019 18:53:47 +0000 (18:53 +0000)]
Backport PRs 56386, 58906, 77385, 80260, 82077
2019-01-27 Paul Thomas <pault@gcc.gnu.org>
Backport from trunk
PR fortran/56386
PR fortran/58906
PR fortran/77385
PR fortran/80260
PR fortran/82077
* resolve.c (resolve_variable): Fix up expressions with array
associate names, where the parser did not detect that this is
array and there was no array part_ref in the expression.
* trans-expr.c (gfc_find_and_cut_at_last_class_ref): base_expr
should be a copy of e and not the initialization expr.
2019-01-27 Paul Thomas <pault@gcc.gnu.org>
Backport from trunk
PR fortran/56386
PR fortran/58906
PR fortran/77385
* gfortran.dg/associate_44.f90 : New test.
PR fortran/80260
* gfortran.dg/select_type_45.f90 : New test.
PR fortran/82077
* gfortran.dg/select_type_46.f90 : New test.
Uros Bizjak [Sun, 27 Jan 2019 17:42:58 +0000 (18:42 +0100)]
re PR rtl-optimization/88948 (ICE in elimination_costs_in_insn, at reload1.c:3640 since r264148)
PR target/88948
* rtl.h (prepare_copy_insn): New prototype.
* gcse.c (prepare_copy_insn): New function, split out from
process_insert_insn.
(process_insert_insn): Use prepare_copy_insn.
* store-motion.c (replace_store_insn): Use prepare_copy_insn
instead of gen_move_insn.
testsuite/ChangeLog:
PR target/88948
* gcc.target/i386/pr88948.c: New test.
Eric Botcazou [Sat, 26 Jan 2019 16:03:42 +0000 (16:03 +0000)]
trans.c (gnat_to_gnu): Use DECL_SIZE_UNIT instead of TYPE_SIZE_UNIT for the size to be assigned by a...
* gcc-interface/trans.c (gnat_to_gnu) <N_Assignment_Statement>: Use
DECL_SIZE_UNIT instead of TYPE_SIZE_UNIT for the size to be assigned
by a call to memset if the LHS is a DECL.
Eric Botcazou [Sat, 26 Jan 2019 11:36:05 +0000 (11:36 +0000)]
decl.c (annotate_value): Use test on the sign bit instead of on the sign of the value.
* gcc-interface/decl.c (annotate_value) <INTEGER_CST>: Use test on
the sign bit instead of on the sign of the value.
<PLUS_EXPR>: Turn addition of negative constant into subtraction.
<BIT_AND_EXPR>: Simplify.
Joseph Myers [Wed, 16 Jan 2019 21:40:33 +0000 (21:40 +0000)]
Fix diagnostics for never-defined inline and nested functions (PR c/88720, PR c/88726).
Bugs 88720 and 88726 report issues where a function is declared inline
in an inner scope, resulting in spurious diagnostics about it being
declared but never defined when that scope is left (possibly in some
cases also wrongly referring to the function as a nested function).
These are regressions that were introduced with the support for C99
inline semantics in 4.3 (they don't appear with 4.2; it's possible
some aspects of the bugs might have been introduced later than 4.3).
For the case of functions being wrongly referred to as nested,
DECL_EXTERNAL was not the right condition for a function being
non-nested; TREE_PUBLIC is appropriate for the case of non-nested
functions with external linkage, while !b->nested means this is the
outermost scope in which the function was declared and so avoids
catching the case of a file-scope static being redeclared inline
inside a function.
For the non-nested, external-linkage case, the code attempts to avoid
duplicate diagnostics by diagnosing only when scope != external_scope,
but actually scope == external_scope is more appropriate, as it's only
when the file and external scopes are popped that the code can
actually tell whether a function ended up being defined, and all such
functions will appear in the (GCC-internal) external scope.
Bootstrapped with no regressions on x86_64-pc-linux-gnu.
gcc/c:
Backport from mainline
2019-01-07 Joseph Myers <joseph@codesourcery.com>
PR c/88720
PR c/88726
* c-decl.c (pop_scope): Use TREE_PUBLIC and b->nested to determine
whether a function is nested, not DECL_EXTERNAL. Diagnose inline
functions declared but never defined only for external scope, not
for other scopes.
gcc/testsuite:
Backport from mainline
2019-01-07 Joseph Myers <joseph@codesourcery.com>
PR c/88720
PR c/88726
* gcc.dg/inline-40.c, gcc.dg/inline-41.c: New tests.
Jerry DeLisle [Mon, 14 Jan 2019 01:12:27 +0000 (01:12 +0000)]
re PR libfortran/88776 (Namelist read from stdin: loss of data)
2019-01-13 Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR libfortran/88776
* io/list_read.c (namelist_read): Use nml_err_ret path on read error
not based on stdin_unit.
* io/open.c (newunit): Free format buffer if the unit specified is for
stdin, stdout, or stderr.
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