Jonathan Wakely [Thu, 23 May 2019 15:34:42 +0000 (16:34 +0100)]
PR libstdc++/89466 avoid slow xsltproc command in configure
Certain broken versions of xsltproc ignore the --nonet option and will
attempt to fetch the docbook stylesheet from the WWW when it isn't in
the local XML catalog.
This patch checks for the local stylesheet directory first, and doesn't
use xsltproc if no local stylesheets are found. Checking for the local
directory is done using xmlcatalog if available, only checking the
hardcoded list of directories if xmlcatalog fails. The right directory
for Suse is added to the hardcoded list.
This should avoid doing an xsltproc check that would need to download
the stylesheet, so no network connection is made even if a broken
xsltproc is present.
Backport from mainline
2019-02-27 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/89466
* acinclude.m4 (GLIBCXX_CONFIGURE_DOCBOOK): Reorder check for local
stylesheet directories before check for xsltproc. Try to use
xmlcatalog to find local stylesheet directory before trying hardcoded
paths. Add path used by suse to hardcoded paths. Adjust xsltproc
check to look for the same stylesheet as doc/Makefile.am uses. Don't
use xsltproc if xmlcatalog fails to find a local stylesheet.
* configure.ac: Check for xmlcatalog.
* Makefile.in: Regenerate.
* configure: Likewise.
* doc/Makefile.in: Likewise.
* include/Makefile.in: Likewise.
* libsupc++/Makefile.in: Likewise.
* po/Makefile.in: Likewise.
* python/Makefile.in: Likewise.
* src/Makefile.in: Likewise.
* src/c++11/Makefile.in: Likewise.
* src/c++17/Makefile.in: Likewise.
* src/c++98/Makefile.in: Likewise.
* src/filesystem/Makefile.in: Likewise.
* testsuite/Makefile.in: Likewise.
Jonathan Wakely [Thu, 23 May 2019 15:09:02 +0000 (16:09 +0100)]
Make any_cast compare typeinfo as well as function pointers
It's possible for the function pointer comparison to fail even though
the type is correct, because the function could be defined multiple
times with different addresses when shared libraries are in use.
Retain the function pointer check for the common case where the check
succeeds, but compare typeinfo (if RTTI is enabled) if the first check
fails.
Backport from mainline
2019-05-23 Jonathan Wakely <jwakely@redhat.com>
* include/experimental/any (__any_caster): Use RTTI if comparing
addresses fails, to support non-unique addresses in shared libraries.
* include/std/any (__any_caster): Likewise.
* testsuite/experimental/any/misc/any_cast_neg.cc: Use 0 for dg-error
line number.
Jonathan Wakely [Thu, 23 May 2019 15:08:58 +0000 (16:08 +0100)]
PR libstdc++/90220 Fix any_cast for non-object types
Backport from mainline
2019-04-24 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/90220 (partial)
* include/std/any (any_cast<T>(any*), any_cast<T>(const any*)): Do
not attempt ill-formed static_cast to pointers to non-object types.
* testsuite/20_util/any/misc/any_cast.cc: Test std::any_cast with
function types.
Backport from mainline
2019-04-24 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/90220
* include/std/any (__any_caster): Use remove_cv_t instead of decay_t.
Avoid a runtime check for types that can never be stored in std::any.
* testsuite/20_util/any/misc/any_cast.cc: Test std::any_cast with
array types.
Backport from mainline
2019-05-23 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/90220
* include/experimental/any (__any_caster): Constrain to only be
callable for object types. Use remove_cv_t instead of decay_t.
If the type decays or isn't copy constructible, compare the manager
function to a dummy specialization.
(__any_caster): Add overload constrained for non-object types.
(any::_Manager_internal<_Op>): Add dummy specialization.
* testsuite/experimental/any/misc/any_cast.cc: Test function types
and array types.
Kelvin Nilsen [Mon, 20 May 2019 20:07:12 +0000 (20:07 +0000)]
backport: re PR middle-end/89765 (Multiple problems with vec-insert implementation on PowerPC)
gcc/ChangeLog:
2019-05-20 Kelvin Nilsen <kelvin@gcc.gnu.org>
Backport from mainline.
2019-05-07 Kelvin Nilsen <kelvin@gcc.gnu.org>
PR target/89765
* config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
In handling of ALTIVEC_BUILTIN_VEC_INSERT, use modular arithmetic
to compute vector element selector for both constant and variable
operands.
gcc/testsuite/ChangeLog:
2019-05-20 Kelvin Nilsen <kelvin@gcc.gnu.org>
Backport from mainline.
2019-05-07 Kelvin Nilsen <kelvin@gcc.gnu.org>
PR target/89765
* gcc.target/powerpc/pr89765-mc.c: New test.
* gcc.target/powerpc/vsx-builtin-10c.c: New test.
* gcc.target/powerpc/vsx-builtin-10d.c: New test.
* gcc.target/powerpc/vsx-builtin-11c.c: New test.
* gcc.target/powerpc/vsx-builtin-11d.c: New test.
* gcc.target/powerpc/vsx-builtin-12c.c: New test.
* gcc.target/powerpc/vsx-builtin-12d.c: New test.
* gcc.target/powerpc/vsx-builtin-13c.c: New test.
* gcc.target/powerpc/vsx-builtin-13d.c: New test.
* gcc.target/powerpc/vsx-builtin-14c.c: New test.
* gcc.target/powerpc/vsx-builtin-14d.c: New test.
* gcc.target/powerpc/vsx-builtin-15c.c: New test.
* gcc.target/powerpc/vsx-builtin-15d.c: New test.
* gcc.target/powerpc/vsx-builtin-16c.c: New test.
* gcc.target/powerpc/vsx-builtin-16d.c: New test.
* gcc.target/powerpc/vsx-builtin-17c.c: New test.
* gcc.target/powerpc/vsx-builtin-17d.c: New test.
* gcc.target/powerpc/vsx-builtin-18c.c: New test.
* gcc.target/powerpc/vsx-builtin-18d.c: New test.
* gcc.target/powerpc/vsx-builtin-19c.c: New test.
* gcc.target/powerpc/vsx-builtin-19d.c: New test.
* gcc.target/powerpc/vsx-builtin-20c.c: New test.
* gcc.target/powerpc/vsx-builtin-20d.c: New test.
* gcc.target/powerpc/vsx-builtin-9c.c: New test.
* gcc.target/powerpc/vsx-builtin-9d.c: New test.
David Edelsohn [Wed, 15 May 2019 17:11:31 +0000 (17:11 +0000)]
backport: re PR target/61976 (aix64: Data corruption in struct passed by value)
Backport from mainline
2019-04-11 David Edelsohn <dje.gcc@gmail.com>
* xcoffout.h (xcoff_private_rodata_section_name): Declare.
* xcoffout.c (xcoff_private_rodata_section_name): Define.
* config/rs6000/rs6000.c (rs6000_xcoff_asm_init_sections): Create
read_only_private_data_section using coff_private_rodata_section_name.
(rs6000_xcoff_file_start): Generate coff_private_rodata_section_name.
2018-12-04 David Edelsohn <dje.gcc@gmail.com>
2018-12-13 David Edelsohn <dje.gcc@gmail.com>
PR target/61976
* config/rs6000/rs6000.c (rs6000_function_arg): Don't pass aggregates
in FPRs on AIX. Ensure type is non-NULL.
(rs6000_arg_partial_bytes): Same.
Jonathan Wakely [Wed, 8 May 2019 12:17:26 +0000 (13:17 +0100)]
PR libstdc++/90105 make forward_list::sort stable
While testing the fix I also discovered that operator== assumes the
elements are comparable with operator!= which is not required.
Backport from mainline
2019-04-17 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/90105
* include/bits/forward_list.tcc (operator==): Do not use operator!= to
compare elements.
(forward_list<T, A>::sort(Comp)): When elements are equal take the one
earlier in the list, so that sort is stable.
* testsuite/23_containers/forward_list/operations/90105.cc: New test.
* testsuite/23_containers/forward_list/comparable.cc: Test with
types that meet the minimum EqualityComparable and LessThanComparable
requirements. Remove irrelevant comment.
Jonathan Wakely [Wed, 8 May 2019 12:17:20 +0000 (13:17 +0100)]
PR libstdc++/89629 fix _Hash_bytes for lengths > INT_MAX
Backport from mainline
2019-03-11 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/89629
* libsupc++/hash_bytes.cc [__SIZEOF_SIZE_T__ == 8] (_Hash_bytes):
Use correct type for len_aligned.
* testsuite/20_util/hash/89629.cc: New test.
Fix output_constructor_bitfield handling of wide bitfields (PR89037)
The testcase was failing because we were trying to access
TREE_INT_CST_ELT (x, 1) of a 128-bit integer that was small enough
to need only a single element.
2019-05-07 Richard Sandiford <richard.sandiford@arm.com>
gcc/
Backport from mainline:
2019-01-25 Richard Sandiford <richard.sandiford@arm.com>
PR middle-end/89037
* varasm.c (output_constructor_bitfield): Use wi::extract_uhwi
instead of accessing TREE_INT_CST_ELT directly.
gcc/testsuite/
Backport from mainline:
2019-01-25 Richard Sandiford <richard.sandiford@arm.com>
This keeps coming up repeatedly and the ACLE has finally added
__ARM_FEATURE_ATOMICS for the LSE feature in GCC. This is now part of
the latest ACLE release
(https://developer.arm.com/docs/101028/latest/5-feature-test-macros)
I know it's late for GCC-9 but this is a simple macro which need not
wait for another year.
Ok for trunk and to backport to all release branches ?
Tested with a simple build and a smoke test.
Backport from mainline.
PR target/86538
* config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins): Define
__ARM_FEATURE_ATOMICS
backport: re PR target/87532 (bad results from vec_extract(unsigned char, foo) dependent upon function inline)
gcc/ChangeLog:
2019-04-22 Kelvin Nilsen <kelvin@gcc.gnu.org>
Backport from mainline
2019-03-15 Kelvin Nilsen <kelvin@gcc.gnu.org>
PR target/87532
* config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
When handling vec_extract, use modular arithmetic to allow
constant selectors greater than vector length.
* config/rs6000/rs6000.c (rs6000_expand_vector_extract): Allow
V1TImode vectors to have constant selector values greater than 0.
Use modular arithmetic to compute vector index.
(rs6000_split_vec_extract_var): Use modular arithmetic to compute
index for in-memory vectors. Correct code generation for
in-register vectors. Use inner mode of vector rather than mode of
destination for move instruction.
(altivec_expand_vec_ext_builtin): Use modular arithmetic to
compute index.
2019-04-12 Kelvin Nilsen <kelvin@gcc.gnu.org>
PR target/87532
* config/rs6000/vsx.md (*vsx_extract_<mode>_<VS_scalar>mode_var):
Use QI inner mode with V16QI vector mode.
gcc/testsuite/ChangeLog:
2019-04-22 Kelvin Nilsen <kelvin@gcc.gnu.org>
Backport from mainline
2019-03-15 Kelvin Nilsen <kelvin@gcc.gnu.org>
PR target/87532
* gcc.target/powerpc/pr87532-mc.c: New test.
* gcc.target/powerpc/pr87532.c: New test.
* gcc.target/powerpc/vec-extract-v16qiu-v2.h: New test.
* gcc.target/powerpc/vec-extract-v16qiu-v2a.c: New test.
* gcc.target/powerpc/vec-extract-v16qiu-v2b.c: New test.
* gcc.target/powerpc/vsx-builtin-10a.c: New test.
* gcc.target/powerpc/vsx-builtin-10b.c: New test.
* gcc.target/powerpc/vsx-builtin-11a.c: New test.
* gcc.target/powerpc/vsx-builtin-11b.c: New test.
* gcc.target/powerpc/vsx-builtin-12a.c: New test.
* gcc.target/powerpc/vsx-builtin-12b.c: New test.
* gcc.target/powerpc/vsx-builtin-13a.c: New test.
* gcc.target/powerpc/vsx-builtin-13b.c: New test.
* gcc.target/powerpc/vsx-builtin-14a.c: New test.
* gcc.target/powerpc/vsx-builtin-14b.c: New test.
* gcc.target/powerpc/vsx-builtin-15a.c: New test.
* gcc.target/powerpc/vsx-builtin-15b.c: New test.
* gcc.target/powerpc/vsx-builtin-16a.c: New test.
* gcc.target/powerpc/vsx-builtin-16b.c: New test.
* gcc.target/powerpc/vsx-builtin-17a.c: New test.
* gcc.target/powerpc/vsx-builtin-17b.c: New test.
* gcc.target/powerpc/vsx-builtin-18a.c: New test.
* gcc.target/powerpc/vsx-builtin-18b.c: New test.
* gcc.target/powerpc/vsx-builtin-19a.c: New test.
* gcc.target/powerpc/vsx-builtin-19b.c: New test.
* gcc.target/powerpc/vsx-builtin-20a.c: New test.
* gcc.target/powerpc/vsx-builtin-20b.c: New test.
* gcc.target/powerpc/vsx-builtin-9a.c: New test.
* gcc.target/powerpc/vsx-builtin-9b.c: New test.
2019-03-19 Kelvin Nilsen <kelvin@gcc.gnu.org>
PR target/89736
* gcc.target/powerpc/pr87532-mc.c: Modify dejagnu directives to
restrict this test to vsx targets.
Xiong Hu Luo [Fri, 19 Apr 2019 03:30:33 +0000 (03:30 +0000)]
backport r257541, r259936, r260294, r260623, r261098, r261333, r268585 from trunk
These patches are followed changes for r255555 on testcases
vsx-vector-6*.c. Backport them to update file names and fix regressions
for GCC7 on power9.
See e.g. https://gcc.gnu.org/ml/gcc-testresults/2019-04/msg00159.html
for the failures this patch fixes; the patch is for GCC 7.
gcc/ChangeLog:
2019-04-19 Xiong Hu Luo <luoxhu@linux.ibm.com>
Backport from trunk
2018-05-23 Segher Boessenkool <segher@kernel.crashing.org>
* doc/sourcebuild.texi (Endianness): New subsubsection.
gcc/testsuite/ChangeLog:
2019-04-19 Xiong Hu Luo <luoxhu@linux.ibm.com>
Backport from trunk
2018-02-07 Will Schmidt <will_schmidt@vnet.ibm.com>
* gcc.target/powerpc/vsx-vector-6-le.c: Update CPU target.
* gcc.target/powerpc/vsx-vector-6-le.p9.c: New.
Backport from trunk
2018-05-04 Carl Love <cel@us.ibm.com>
* gcc.target/powerpc/vsx-vector-6.h (foo): Add test for vec_max,
vec_trunc.
* gcc.target/powerpc/vsx-vector-6-le.c (dg-final): Update xvcmpeqdp,
xvcmpgtdp, xvcmpgedp counts. Add xxsel counts.
* gcc.target/powerpc/vsx-vector-6-be.c (dg-final): Update xvcmpgtdp,
xvcmpgedp counts. Add xxsel counts.
Backport from trunk
2018-05-16 Carl Love <cel@us.ibm.com>
* gcc.target/powerpc/vsx-vector-6-be.c: Remove file.
* gcc.target/powerpc/vsx-vector-6-be.p7.c: New test file.
* gcc.target/powerpc/vsx-vector-6-be.p8.c: New test file.
* gcc.target/powerpc/vsx-vector-6-le.c (dg-final): Update counts for
xvcmpeqdp., xvcmpgtdp., xvcmpgedp., xxlxor, xvrdpi.
Backport from trunk
2018-05-23 Segher Boessenkool <segher@kernel.crashing.org>
Backport from trunk
2018-06-01 Carl Love <cel@us.ibm.com>
Commit 260294 on 2018-05-16 by Carl Love was supposed to add the
following files.
* gcc.target/powerpc/vsx-vector-6-be.p7.c: New test file.
* gcc.target/powerpc/vsx-vector-6-be.p8.c: New test file.
Backport from trunk
2018-06-08 Carl Love <cel@us.ibm.com>
* gcc.target/powerpc/vsx-vector-6-be.p7.c: Rename this file to
vsx-vector-6.p7.c.
* gcc.target/powerpc/vsx-vector-6-le.p9.c: Rename this file to
vsx-vector-6.p9.c.
* gcc.target/powerpc/vsx-vector-6-be.p8.c: Move instruction counts
for BE system that are different then for an LE system from this file
into vsx-vector-6-le.c using be target qualifier. Remove this file.
* gcc.target/powerpc/vsx-vector-6-le.c: Add le qualifiers as needed for
the various instruction counts. Rename file to vsx-vector-6.p8.c.
Backport from trunk
2019-02-06 Bill Seurer <seurer@linux.vnet.ibm.com>
* gcc.target/powerpc/vsx-vector-6.p7.c: Update instruction
counts and target.
* gcc.target/powerpc/vsx-vector-6.p8.c: Update instruction
counts and target.
* gcc.target/powerpc/vsx-vector-6.p9.c: Update instruction
counts and target.
Thomas Koenig [Sun, 14 Apr 2019 12:27:44 +0000 (12:27 +0000)]
re PR fortran/87352 (Large stack usage with new gfortran)
2019-04-14 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/87352
Backport from trunk
* gfortran.h (gfc_component): Add finalized field.
* class.c (finalize_component): If the component is already
finalized, return early. Set component->finalized on exit.
2019-04-14 Thomas Koenig <tkoenig@gcc.gnu.org>
Backport from trunk
PR fortran/87352
* gfortran.dg/finalize_28.f90: Adjust count of __builtin_free.
* gfortran.dg/finalize_34.f90: New test.
Martin Liska [Thu, 11 Apr 2019 08:59:48 +0000 (10:59 +0200)]
Backport r269492
2019-04-11 Martin Liska <mliska@suse.cz>
Backport from mainline
2019-03-08 Martin Liska <mliska@suse.cz>
PR target/86952
* config/i386/i386.c (ix86_option_override_internal): Disable
jump tables when retpolines are used.
2019-04-11 Martin Liska <mliska@suse.cz>
Backport from mainline
2019-03-08 Martin Liska <mliska@suse.cz>
PR target/86952
* gcc.target/i386/pr86952.c: New test.
* gcc.target/i386/indirect-thunk-7.c: Use jump tables to match
scanned pattern.
* gcc.target/i386/indirect-thunk-inline-7.c: Likewise.
The "*neon_mov<mode>" patterns for 128 bit sized quantities uses the "Dn"
constraint to match vmov.f32 and vmov.i<vec-width> patterns.
This constraint boils down to using the `neon_immediate_valid` function.
Once the constraint has matched, the output C statement asserts that function
passes.
The output C statement calls `neon_immediate_valid` with the mode taken from the
iterator, while the constraint takes the mode from the operand.
This can cause a discrepency when the operand is a CONST_INT, as the constraint
passes VOIDmode which `neon_immediate_valid` treats as DImode, while the C
statement passes the mode of the iterator which can be TImode.
When this happens, the `neon_immediate_valid` can fail in the second call (if
e.g. the CONST_INT is a valid immediate in DImode but not TImode) which would
trigger the assertion.
The testcase added with this patch triggers this when compiled with an arm cross
compiler using the command line below.
gcc -march=armv8-a -c neon-immediate-timode.c -O1 -mfloat-abi=hard -mfpu=neon-fp-armv8
This patch splits the original "Dn" constraint into three new constraints, "DN"
for TImode CONST_INT, "Dn" for DImode CONST_INT, and "Dm" for CONST_VECTOR.
Splitting things up this way requires using one extra alternative in the
"*neon_mov<mode>" patterns, but makes it clear from the constraint what mode is
being used.
We also remove the behaviour of treating VOIDmode as DImode in
`neon_valid_immediate` since the original "Dn" constraint was the only place
that functionality was used. VOIDmode is now never passed to that function.
An assertion has been added to the function to ensure this problem is caught
earlier on.
bootstrapped and regtested on arm-none-linux-gnueabihf
gcc/ChangeLog:
2019-04-10 Matthew Malcomson <matthew.malcomson@arm.com>
PR target/90024
* config/arm/arm.c (neon_valid_immediate): Disallow VOIDmode parameter.
* config/arm/constraints.md (Dm, DN, Dn): Split previous Dn constraint
into three.
* config/arm/neon.md (*neon_mov<mode>): Account for TImode and DImode
differences directly.
(*smax<mode>3_neon, vashl<mode>3, vashr<mode>3_imm): Use Dm constraint.
gcc/testsuite/ChangeLog:
2019-04-10 Matthew Malcomson <matthew.malcomson@arm.com>
PR target/90024
* gcc.dg/torture/neon-immediate-timode.c: New test.
Richard Biener [Tue, 26 Mar 2019 13:18:23 +0000 (13:18 +0000)]
backport: [multiple changes]
2019-02-26 Richard Biener <rguenther@suse.de>
Backport from mainline
2019-02-12 Richard Biener <rguenther@suse.de>
PR tree-optimization/89253
* tree-ssa-loop-split.c (tree_ssa_split_loops): Check we can
duplicate the loop.
* gfortran.dg/pr89253.f: New testcase.
2019-02-08 Richard Biener <rguenther@suse.de>
PR middle-end/89223
* tree-data-ref.c (initialize_matrix_A): Fail if constant
doesn't fit in HWI.
(analyze_subscript_affine_affine): Handle failure from
initialize_matrix_A.
* gcc.dg/torture/pr89223.c: New testcase.
2019-01-28 Richard Biener <rguenther@suse.de>
PR tree-optimization/88739
* tree-ssa-sccvn.c (vn_reference_lookup_3): Avoid generating
BIT_FIELD_REFs of non-mode-precision integral operands.
Richard Biener [Tue, 26 Mar 2019 11:18:26 +0000 (11:18 +0000)]
backport: [multiple changes]
2019-03-26 Richard Biener <rguenther@suse.de>
Backport from mainline
2019-01-08 Richard Biener <rguenther@suse.de>
PR tree-optimization/86554
* tree-ssa-sccvn.c (visit_nary_op): When value-numbering to
expressions with different overflow behavior make sure there's an
available expression on the path.
* gcc.dg/torture/pr86554-1.c: New testcase.
* gcc.dg/torture/pr86554-2.c: Likewise.
2018-11-20 Richard Biener <rguenther@suse.de>
PR tree-optimization/88105
* tree-ssa-dom.c (pass_dominator::execute): Do not walk
backedges.
* gcc.dg/gomp/pr88105.c: New testcase.
2018-03-08 Richard Biener <rguenther@suse.de>
PR middle-end/84552
* tree-scalar-evolution.c: Include tree-into-ssa.h.
(follow_copies_to_constant): Do not follow SSA names registered
for update.
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