This version of the fix uses __getauxval instead of getauxval.
The whole thing is guarded simply on __gnu_linux__.
__getauxval was introduced in 2.16 but the aarch64 port was added in 2.17 so in practice I expect all aarch64 glibcs to support __getauxval.
Bootstrapped and tested on aarch64-none-linux-gnu.
Also tested on aarch64-none-elf.
2020-05-06 Kyrylo Tkachov <kyrylo.tkachov@arm.com>
* config/aarch64/lse-init.c (init_have_lse_atomics): Use __getauxval
instead of getauxval.
(AT_HWCAP): Define.
(HWCAP_ATOMICS): Define.
Guard detection on __gnu_linux__.
This removes trivial instances of SLP_INSTANCE_GROUP_SIZE and refrains
from using a "SLP instance" which nowadays is just one of the possibly
many entries into the SLP graph.
2020-05-06 Richard Biener <rguenther@suse.de>
* tree-vectorizer.h (vect_transform_slp_perm_load): Adjust.
* tree-vect-data-refs.c (vect_slp_analyze_node_dependences):
Remove slp_instance parameter, just iterate over all scalar stmts.
(vect_slp_analyze_instance_dependence): Adjust and likewise.
* tree-vect-slp.c (vect_bb_slp_scalar_cost): Remove unused BB
parameter.
(vect_schedule_slp): Just iterate over all scalar stmts.
(vect_supported_load_permutation_p): Adjust.
(vect_transform_slp_perm_load): Remove slp_instance parameter,
instead use the number of lanes in the node as group size.
* tree-vect-stmts.c (vect_model_load_cost): Get vectorization
factor instead of slp_instance as parameter.
(vectorizable_load): Adjust.
aarch64_get_extension_string_for_isa_flags is declared in
"aarch64-protos.h", use that instead of re-declaring it improperly.
* config/aarch64/driver-aarch64.c: Include "aarch64-protos.h".
(aarch64_get_extension_string_for_isa_flags): Don't declare.
I just remembered that the libstdc++ ABI baselines haven't been updated
for the GCC 10 release yet. This patch corrects this for Solaris/SPARC
and x86.
Created on master with make new-abi-baseline on i386-pc-solaris2.11 and
sparc-sun-solaris2.11, bootstrapped on gcc-10 branch without regressions.
* config/abi/post/i386-solaris/baseline_symbols.txt: Regenerate.
* config/abi/post/i386-solaris/amd64/baseline_symbols.txt:
Likewise.
* config/abi/post/sparc-solaris/baseline_symbols.txt: Likewise.
* config/abi/post/sparc-solaris/sparcv9/baseline_symbols.txt:
Likewise.
Loop optimizers expect to be able to insert on the preheader
edge w/o splitting it thus avoid ending up with a preheader
that enters the loop via an EH edge (or an abnormal edge).
2020-05-06 Richard Biener <rguenther@suse.de>
PR middle-end/94964
* cfgloopmanip.c (create_preheader): Require non-complex
preheader edge for CP_SIMPLE_PREHEADERS.
Eliding the load for store-motion causes an uninitialized variable
flowing into the loop, conditionally initialized and used. The
uninit warning cannot relate the flag used to guard the initialization
and use with the actual initialization so the following robustifies
the previous approach of marking the conditional store as not to
be warned on by instead initializing the variable on loop entry
from an uninitialized variable we mark as not to be warned for.
2020-05-06 Richard Biener <rguenther@suse.de>
PR tree-optimization/94963
* tree-ssa-loop-im.c (execute_sm_if_changed): Remove
no-warning marking of the conditional store.
(execute_sm): Instead mark the uninitialized state
on loop entry to be not warned about.
* gcc.dg/pr94963.c: New testcase.
On Wed, May 06, 2020 at 10:49:13AM +0200, Rainer Orth wrote:
> I just remembered that the libstdc++ ABI baselines haven't been updated
> for the GCC 10 release yet. This patch corrects this for Solaris/SPARC
> and x86.
Oops, here are the updates from Fedora packages built during the weekend.
2020-05-06 Jakub Jelinek <jakub@redhat.com>
* config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
* config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
* config/abi/post/i386-linux-gnu/baseline_symbols.txt: Update.
* config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
* config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
* config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
* config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
According to my verification proglet, this transformation for signed types
with undefined overflow doesn't introduce nor remove any UB cases, so should
be valid even for signed integral types.
Not using a for because of the :c on plus which can't be there on minus.
2020-05-06 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/94921
* match.pd (~(~X - Y) -> X + Y, ~(~X + Y) -> X - Y): New
simplifications.
* gcc.dg/tree-ssa/pr94921.c: New test.
Should have passed vinfo, not loop_vinfo.
2020-05-06 Richard Biener <rguenther@suse.de>
PR tree-optimization/94965
* tree-vect-stmts.c (vectorizable_load): Fix typo.
This patch updates install.texi for GCC 10 on Solaris. It includes some
general cleanup and updates and includes a couple of caveats, some of
them found when testing GCC 10.1.0 RC1 with only the bundled tools.
The reference to TGCware on the binaries page is gone because they only
provide binaries up to Solaris 9.
The note about configuring 64-bit Solaris/SPARC compilers with
--build=sparcv9-sun-solaris2.11 became necessary because upstream
config.guess silently reverted my patch to automatically detect this. We
already had a bug report about a comparison failure caused by this issue.
Tested with make doc/gccinstall.info and doc/gccinstall.pdf and
inspection of the resulting files.
* doc/install.texi: Replace Sun with Solaris as appropriate.
(Tools/packages necessary for building GCC, Perl version between
5.6.1 and 5.6.24): Remove Solaris 8 reference.
(Installing GCC: Binaries, Solaris 2 (SPARC, Intel)): Remove
TGCware reference.
(Specific, i?86-*-solaris2*): Update version references for
Solaris 11.3 and later. Remove gas 2.26 caveat.
(Specific, *-*-solaris2*): Update version references for
Solaris 11.3 and later. Remove boehm-gc reference.
Document GMP, MPFR caveats on Solaris 11.3.
(Specific, sparc-sun-solaris2*): Update Solaris 9 references.
(Specific, sparc64-*-solaris2*): Likewise.
Document --build requirement.
Similarly to the fixes on many other targets, riscv needs to use TARGET_EXPR
to avoid having the create_tmp_var_raw temporaries without proper DECL_CONTEXT
and not mentioned in local decls.
2020-05-06 Jakub Jelinek <jakub@redhat.com>
PR target/94950
* config/riscv/riscv-builtins.c (riscv_atomic_assign_expand_fenv): Use
TARGET_EXPR instead of MODIFY_EXPR for first assignment to old_flags.
There were some discussions about whether REG_EQUAL notes are valid on insns with a single
set which contains auto-inc-dec side-effects in the SET_SRC and the majority thinks that
it should be valid. So, this patch fixes the combiner to punt in that case, because otherwise
the auto-inc-dec side-effects from the SET_SRC are lost.
2020-05-06 Jakub Jelinek <jakub@redhat.com>
PR rtl-optimization/94873
* combine.c (combine_instructions): Don't optimize using REG_EQUAL
note if SET_SRC (set) has side-effects.
* gcc.dg/pr94873.c: New test.
The existing check doesn't reflect the actual reason why it exists,
the patch makes us to use POINTERS_EXTEND_UNSIGNED instead which
is specified for ptr_mode and word_mode/Pmode precision.
2020-05-06 Richard Biener <rguenther@suse.de>
* tree-cfg.c (verify_gimple_assign_unary): Adjust integer
to/from pointer conversion checking.
Issue 2235 removed the rule previously added for issues 1391/1847 that had
partial ordering completely ignore function parameters with no deducible
template parameters.
gcc/cp/ChangeLog
2020-05-05 Jason Merrill <jason@redhat.com>
CWG 2235
* pt.c (more_specialized_fn): Do consider parms with no deducible
template parameters.
This is the same issue as PR86429, just in potential_constant_expression_1
rather than cxx_eval_constant_expression. As in that case, when we're
trying to evaluate a constant expression within a lambda, we don't have a
constant closure object to refer to, but we can try to refer directly to the
captured variable.
gcc/cp/ChangeLog
2020-05-05 Jason Merrill <jason@redhat.com>
PR c++/90212
* constexpr.c (potential_constant_expression_1): In a lambda
function, consider a captured variable directly.
my_exception_matcher must return int. Otherwise, this test fails.
PR testsuite/84324
* objc/execute/exceptions/matcher-1.m (my_exception_matcher):
Change return type to int.
gcc/fortran/ChangeLog:
2020-05-05 Steve Kargl <kargl@gcc.gnu.org>
Harald Anlauf <anlauf@gmx.de>
PR fortran/93366
* check.c (gfc_check_associated, invalid_null_arg): Factorize
check for presence of invalid NULL() argument.
(gfc_check_kind, gfc_check_merge, gfc_check_shape)
(gfc_check_sizeof, gfc_check_spread, gfc_check_transfer): Use this
check for presence of invalid NULL() arguments.
gcc/testsuite/ChangeLog:
2020-05-05 Harald Anlauf <anlauf@gmx.de>
PR fortran/93366
* gfortran.dg/pr93366.f90: New test.
Diagnostic coloring makes the log file hard to read when there's a
problem. Let's do without it.
* Testsuite/lib/libitm.exp (libitm_init): Add
-fdiagnostics-color=never to options.
The lowering of co_yield to a promise method call and a co_await
was moved to the initial analysis phase with the intention of
avoiding the need to handle the two cases later.
Before removing the later checks entirely, this patch replaces
them with checking asserts.
gcc/cp/Changelog:
2020-05-05 Iain Sandoe <iain@sandoe.co.uk>
* coroutines.cc (transform_await_wrapper): Check that we have
no unlowered co_yields.
(captures_temporary): Likewise.
(register_awaits): Likewise.
Per clarification in [1], macro is supposed to check for partial
clobbering of single HW registers. Since PRU declares only 8-bit
HW registers, and ABI does not define individual bit clobbering,
it is safe to remove the implementation.
[1] https://gcc.gnu.org/ml/gcc-patches/2019-09/msg00778.html
gcc/ChangeLog:
2020-05-05 Dimitar Dimitrov <dimitar@dinux.eu>
* config/pru/pru.c (pru_hard_regno_call_part_clobbered): Remove.
(TARGET_HARD_REGNO_CALL_PART_CLOBBERED): Remove.
Signed-off-by: Dimitar Dimitrov <dimitar@dinux.eu>
TI has clarified [1] that R3.w0 is caller saved, so allow compiler to
use it. This is safe change because older GCC versions treat R3.w0 as
fixed register and never use it.
[1] https://e2e.ti.com/support/tools/ccs/f/81/t/849993
gcc/ChangeLog:
2020-05-05 Dimitar Dimitrov <dimitar@dinux.eu>
* config/pru/pru.h: Mark R3.w0 as caller saved.
gcc/testsuite/ChangeLog:
2020-05-05 Dimitar Dimitrov <dimitar@dinux.eu>
* gcc.target/pru/lra-framepointer-fragmentation-1.c: Update test to
take into account additional available registers.
* gcc.target/pru/lra-framepointer-fragmentation-2.c: Ditto.
Signed-off-by: Dimitar Dimitrov <dimitar@dinux.eu>
Use the new @insn syntax for simpler gen_* invocation.
gcc/ChangeLog:
2020-05-05 Dimitar Dimitrov <dimitar@dinux.eu>
* config/pru/pru.c (pru_emit_doloop): Use new gen_doloop_end_internal
and gen_doloop_begin_internal.
(pru_reorg_loop): Use gen_pruloop with mode.
* config/pru/pru.md: Use new @insn syntax.
Signed-off-by: Dimitar Dimitrov <dimitar@dinux.eu>
