2017-08-31 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
Backport from mainline
2017-08-25 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
PR target/81504
* config/rs6000/rs6000.c (find_alignment_op): Add reference
parameter and_insn and return it.
(recombine_lvx_pattern): Insert a copy to ensure availability of
the base register of the copied masking operation at the point of
the instruction replacement.
(recombine_stvx_pattern): Likewise.
From-SVN: r251575
2017-08-29 Michael Meissner <meissner@linux.vnet.ibm.com>
Back port from trunk
2017-08-07 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/81593
* gcc.target/powerpc/vsx-extract-6.c: New tests for optimzing
vector inserts from vector extracts.
* gcc.target/powerpc/vsx-extract-7.c: Likewise.
From-SVN: r251446
[gcc]
2017-08-29 Michael Meissner <meissner@linux.vnet.ibm.com>
Back port from trunk
2017-08-07 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/81593
* config/rs6000/vsx.md (vsx_concat_<mode>_1): New combiner insns
to recognize inserting into a vector from a double word element
that was extracted from another vector, and eliminate extra
XXPERMDI instructions.
(vsx_concat_<mode>_2): Likewise.
(vsx_concat_<mode>_3): Likewise.
(vsx_set_<mode>, VSX_D): Rewrite vector set in terms of vector
concat to allow optimizing inserts from previous extracts.
[gcc/testsuite]
2017-08-29 Michael Meissner <meissner@linux.vnet.ibm.com>
Back port from trunk
2017-08-07 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/81593
* gcc.target/powerpc/vec-setup.h: New tests to test various
combinations of setting up vectors of 2 double word elements.
* gcc.target/powerpc/vec-setup-long.c: Likewise.
* gcc.target/powerpc/vec-setup-double.c: Likewise.
* gcc.target/powerpc/vec-setup-be-long.c: Likewise.
* gcc.target/powerpc/vec-setup-be-double.c: Likewise.
From-SVN: r251445
These need to match the gnu-user.h definitions to support
--enable-default-pie. Otherwise we end up linking the wrong startup
files when defaulting to PIE.
PR target/81170
PR target/81295
* config/rs6000/sysv4.h (STARTFILE_LINUX_SPEC): Upgrade to
match gnu-user.h startfile.
(ENDFILE_LINUX_SPEC): Similarly.
From-SVN: r251403
-static and -pie together behave differently depending on whether GCC is
configured with --enable-default-pie. On x86, "-static -pie" fails to
create executable when --enable-default-pie isn't used, but creates a
static executable when --enable-default-pie is used. This patch makes
-static completely override -pie to create a static executable, regardless
if --enable-default-pie is used to configure GCC.
PR target/81170
PR target/81295
PR driver/81523
* gcc.c (NO_PIE_SPEC): Delete.
(PIE_SPEC): Define as !no-pie/pie. Move static|shared|r
exclusion..
(LINK_PIE_SPEC): ..to here.
(LINK_COMMAND_SPEC): Support -no-pie.
* config/gnu-user.h (GNU_USER_TARGET_STARTFILE_SPEC): Correct
chain of crtbegin*.o selection, update for PIE_SPEC changes and
format.
(GNU_USER_TARGET_ENDFILE_SPEC): Similarly.
* config/sol2.h (STARTFILE_CRTBEGIN_SPEC): Similarly.
(ENDFILE_CRTEND_SPEC): Similarly.
From-SVN: r251402
2017-08-29 Richard Biener <rguenther@suse.de>
Backport from mainline
2017-08-28 Richard Biener <rguenther@suse.de>
PR tree-optimization/81977
* tree-ssa-sccvn.c (vn_reference_lookup_3): Fix look through
memcpy.
* g++.dg/torture/pr81977.C: New testcase.
2017-08-28 Richard Biener <rguenther@suse.de>
PR debug/81993
* dwarf2out.c (gen_remaining_tmpl_value_param_die_attributes):
Do nothing for removed DIEs.
From-SVN: r251399
2017-08-28 Richard Biener <rguenther@suse.de>
Backport from mainline
2017-06-14 Richard Biener <rguenther@suse.de>
PR middle-end/81088
* fold-const.c (split_tree): Drop TREE_OVERFLOW flag from
literal constants.
(fold_binary_loc): When associating do not treat pre-existing
TREE_OVERFLOW on literal constants as a reason to allow
TREE_OVERFLOW on associated literal constants.
* c-c++-common/ubsan/pr81088.c: New testcase.
2017-06-13 Richard Biener <rguenther@suse.de>
PR middle-end/81065
* fold-const.c (extract_muldiv_1): Remove bogus distribution
case of C * (x * C2 + C3).
(fold_addr_of_array_ref_difference): Properly fold index difference.
* c-c++-common/ubsan/pr81065.c: New testcase.
2017-06-08 Marek Polacek <polacek@redhat.com>
PR sanitize/80932
* c-c++-common/ubsan/pr80932.c: Test with ints, not with long ints.
2017-06-07 Marek Polacek <polacek@redhat.com>
PR sanitizer/80932
* fold-const.c (extract_muldiv_1) <case MINUS_EXPR>: Add
TYPE_OVERFLOW_WRAPS check.
* c-c++-common/ubsan/pr80932.c: New test.
From-SVN: r251381
2017-08-28 Richard Biener <rguenther@suse.de>
Backport from mainline
2017-08-21 Richard Biener <rguenther@suse.de>
PR middle-end/81884
* tree-ssa-alias.c (stmt_kills_ref_p): Handle array accesses
at struct end conservatively when comparing common bases.
* g++.dg/torture/pr81884.C: New testcase.
2017-05-04 Richard Biener <rguenther@suse.de>
* tree.c (array_at_struct_end_p): Handle arrays at struct
end with flexarrays more conservatively. Refactor and treat
arrays of arrays or aggregates more strict. Fix
VIEW_CONVERT_EXPR handling. Remove allow_compref argument.
* tree.h (array_at_struct_end_p): Adjust prototype.
* gimple-fold.c (get_range_strlen): Likewise.
* tree-chkp.c (chkp_may_narrow_to_field): Likewise.
From-SVN: r251379
2017-08-28 Richard Biener <rguenther@suse.de>
Backport from mainline
2017-08-01 Richard Biener <rguenther@suse.de>
PR tree-optimization/81181
* tree-ssa-pre.c (compute_antic_aux): Defer clean() to ...
(compute_antic): ... end of iteration here.
* gcc.dg/torture/pr81181.c: New testcase.
2017-08-08 Richard Biener <rguenther@suse.de>
PR tree-optimization/81723
* tree-vect-slp.c (struct bst_traits): New hash traits.
(bst_fail): New global.
(vect_build_slp_tree_2): New worker, split out from ...
(vect_build_slp_tree): ... this now wrapping it with using
bst_fail set to cache SLP tree build fails. Properly handle
max_tree_size.
(vect_analyze_slp_instance): Allocate and free bst_fail.
* gfortran.dg/pr81723.f: New testcase.
2017-08-24 Richard Biener <rguenther@suse.de>
PR target/81921
* config/i386/i386.c: Include symbol-summary.h, ipa-prop.h
and ipa-inline.h.
(ix86_can_inline_p): When ix86_fpmath flags do not match
check whether the callee uses FP math at all.
* gcc/testsuite/gcc.target/i386/pr81921.c: New testcase.
From-SVN: r251376
PR c++/81607
* cp-gimplify.c (cp_fold): If folding exposed a branch of
a COND_EXPR, convert it to the original type of the COND_EXPR, if
they differ.
From-SVN: r251358
Backport from mainline
2017-08-23 Daniel Santos <daniel.santos@pobox.com>
* lib/target-supports.exp (check_avx2_hw_available):
Fix breakage due NULL being undefined.
From-SVN: r251336
gcc/
Backport from mainline
2017-08-17 Peter Bergner <bergner@vnet.ibm.com>
PR target/72804
* config/rs6000/vsx.md (*vsx_le_permute_<mode>): Add support for
operands residing in integer registers.
(*vsx_le_perm_load_<mode>): Likewise.
(*vsx_le_perm_store_<mode>): Likewise.
(define_peephole2): Add peepholes to optimize the above.
gcc/testsuite/
Backport from mainline
2017-08-17 Peter Bergner <bergner@vnet.ibm.com>
PR target/72804
* gcc.target/powerpc/pr72804.c: New test.
From-SVN: r251318
2017-08-22 Jerry DeLisle <jvdelisle@gcc.gnu.org>
Backport from trunk
PR fortran/81296
* trans-io.c (get_dtio_proc): Add check for format label and set
formatted flag accordingly. Reorganize the code a little.
* gfortran.dg/dtio_12.f90: Update test.
From-SVN: r251301
gcc/
Backport from mainline
2017-08-17 Peter Bergner <bergner@vnet.ibm.com>
PR target/80210
* config/rs6000/rs6000.c (rs6000_activate_target_options): New function.
(rs6000_set_current_function): Rewrite function to use it.
gcc/testsuite/
Backport from mainline
2017-08-17 Peter Bergner <bergner@vnet.ibm.com>
PR target/80210
* gcc.target/powerpc/pr80210.c: New test.
From-SVN: r251293
2017-08-18 Jerry DeLisle <jvdelisle@gcc.gnu.org>
Backport from trunk
PR fortran/80164
* trans-stmt.c (gfc_trans_call): If no code expr, use code->loc
as warning/error locus.
* gfortran.dg/array_temporaries_4.f90: New test.
From-SVN: r251189
Backport from mainline
2017-08-17 Maxim Ostapenko <m.ostapenko@samsung.com>
PR target/81861
* config/i386/i386.c (ix86_option_override_internal): Save target
specific options after ix86_stack_protector_guard_reg was changed.
From-SVN: r251162
[gcc]
2017-08-16 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
Backport from mainline
2017-08-08 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
PR tree-optimization/81354
* gimple-ssa-strength-reduction.c (create_add_on_incoming_edge):
Insert on edges rather than explicitly creating landing pads.
(analyze_candidates_and_replace): Commit edge inserts.
[gcc/testsuite]
2017-08-16 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
Backport from mainline
2017-08-08 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
PR tree-optimization/81354
* g++.dg/torture/pr81354.C: New file.
From-SVN: r251120
GCC mainline built for sh4-linux-gnu runs out of memory building a
glibc test, which calls strncmp with very large constant size
argument, resulting in the SH inline strncmp expansion trying to
inline a fully unrolled expansion of strncmp for that size.
This patch limits that fully unrolled expansion to the case of less
than 32 bytes. This is explicitly *not* trying to be optimal in any
way (very likely a lower threshold makes sense), just to limit enough
to avoid the out-of-memory issue in the glibc testsuite.
I have *not* run the GCC testsuite for SH. I have verified that this
allows the glibc testsuite to build OK, with both GCC mainline and GCC
7 branch (and that the included test builds quickly with patched GCC,
runs out of memory with unpatched GCC).
PR target/78460
PR target/67712
gcc:
* config/sh/sh-mem.cc (sh_expand_cmpnstr): Only unroll for
constant count if that count is less than 32.
gcc/testsuite:
* gcc.c-torture/compile/string-large-1.c: New test.
From-SVN: r251109
Backport from mainline
2017-08-09 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/79820
PR libstdc++/81751
* config/io/basic_file_stdio.cc (sys_open(FILE*, ios_base::openmode)):
Call fflush on the stream instead of calling sync() while _M_cfile is
null. Restore original value of errno.
* testsuite/ext/stdio_filebuf/char/79820.cc: New.
* testsuite/ext/stdio_filebuf/char/81751.cc: New.
From-SVN: r251090
Janus Weil
GCC Administrator
Marek Polacek
Bill Schmidt
Michael Meissner
Michael Meissner
Alan Modra
Richard Biener
Marek Polacek
Uros Bizjak
Peter Bergner
Jerry DeLisle
Peter Bergner
Sebastian Huber
Yvan Roux
Georg-Johann Lay
Sebastian Huber
Joseph Myers
John David Anglin
Jonathan Wakely