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PR fortran/91253
* scanner.c (skip_fixed_comments): Move comment
lines to next if block.
(gfc_next_char_literal): Fix continue_line setting.
(get_file): Remove bogus ATTRIBUTE_UNUSED.
From-SVN: r277948
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To support full condition reduction vectorization, we have to define
vec_cmp* and vcond_mask_*. This patch is to add related expands.
Also add the missing vector fp comparison RTL pattern supports
like: ungt, unge, unlt, unle, ne, lt and le.
gcc/ChangeLog
2019-11-08 Kewen Lin <linkw@gcc.gnu.org>
PR target/92132
* config/rs6000/predicates.md
(signed_or_equality_comparison_operator): New predicate.
(unsigned_or_equality_comparison_operator): Likewise.
* config/rs6000/rs6000.md (one_cmpl<mode>2): Remove expand.
(one_cmpl<mode>3_internal): Rename to one_cmpl<mode>2.
* config/rs6000/vector.md
(vcond_mask_<mode><mode> for VEC_I and VEC_I): New expand.
(vec_cmp<mode><mode> for VEC_I and VEC_I): Likewise.
(vec_cmpu<mode><mode> for VEC_I and VEC_I): Likewise.
(vcond_mask_<mode><VEC_int> for VEC_F): New expand for float
vector modes and same-size integer vector modes.
(vec_cmp<mode><VEC_int> for VEC_F): Likewise.
(vector_lt<mode> for VEC_F): New expand.
(vector_le<mode> for VEC_F): Likewise.
(vector_ne<mode> for VEC_F): Likewise.
(vector_unge<mode> for VEC_F): Likewise.
(vector_ungt<mode> for VEC_F): Likewise.
(vector_unle<mode> for VEC_F): Likewise.
(vector_unlt<mode> for VEC_F): Likewise.
(vector_uneq<mode>): Expose name.
(vector_ltgt<mode>): Likewise.
(vector_unordered<mode>): Likewise.
(vector_ordered<mode>): Likewise.
gcc/testsuite/ChangeLog
2019-11-08 Kewen Lin <linkw@gcc.gnu.org>
PR target/92132
* gcc.target/powerpc/pr92132-fp-1.c: New test.
* gcc.target/powerpc/pr92132-fp-2.c: New test.
* gcc.target/powerpc/pr92132-int-1.c: New test.
* gcc.target/powerpc/pr92132-int-2.c: New test.
From-SVN: r277947
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Changelog
gcc/
PR target/92295
* config/i386/i386-expand.c (ix86_expand_vector_init_concat)
Enhance ix86_expand_vector_init_concat.
gcc/testsuite
* gcc.target/i386/pr92295.c: New test.
From-SVN: r277946
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C2x removes support for old-style function definitions with identifier
lists, changing () in function definitions to be equivalent to (void)
(while () in declarations that are not definitions still gives an
unprototyped type).
This patch updates GCC accordingly. The new semantics for () are
implemented for C2x mode (meaning () in function definitions isn't
diagnosed by -Wold-style-definition in that mode).
-Wold-style-definition is enabled by default, and turned into a
pedwarn, for C2x.
Bootstrapped with no regressions on x86_64-pc-linux-gnu.
gcc:
* doc/invoke.texi (-Wold-style-definition): Document () not being
considered an old-style definition for C2x.
gcc/c:
* c-decl.c (grokparms): Convert () in a function definition to
(void) for C2x.
(store_parm_decls_oldstyle): Pedwarn for C2x.
(store_parm_decls): Update comment about () not generating a
prototype.
gcc/c-family:
* c.opt (Wold-style-definition): Initialize to -1.
* c-opts.c (c_common_post_options): Set warn_old_style_definition
to flag_isoc2x if not set explicitly.
gcc/testsuite:
* gcc.dg/c11-old-style-definition-1.c,
gcc.dg/c11-old-style-definition-2.c,
gcc.dg/c2x-old-style-definition-1.c,
gcc.dg/c2x-old-style-definition-2.c,
gcc.dg/c2x-old-style-definition-3.c,
gcc.dg/c2x-old-style-definition-4.c,
gcc.dg/c2x-old-style-definition-5.c,
gcc.dg/c2x-old-style-definition-6.c: New tests.
From-SVN: r277945
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Also process it with Doxygen.
* doc/doxygen/user.cfg.in (INPUT): Add <compare> header.
* include/precompiled/stdc++.h: Include <compare> header.
From-SVN: r277944
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* libsupc++/compare (common_comparison_category)
(common_comparison_category_t): Define for C++20.
* testsuite/18_support/comparisons/common/1.cc: New test.
From-SVN: r277943
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gcc/testsuite/
PR other/92090
* gcc.target/powerpc/pr92090-2.c: New test.
From-SVN: r277942
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* config/pa/pa.md (memory_barrier): Revise to use ldcw barriers.
Enhance comment.
(memory_barrier_coherent, memory_barrier_64, memory_barrier_32): New
insn patterns using ldcw instruction.
(memory_barrier): Remove insn pattern using sync instruction.
* config/pa/pa.opt (coherent-ldcw): New option.
(ordered): New option.
From-SVN: r277941
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From-SVN: r277940
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After the simplify-rtx patch, we can now be asked about conditions we
wouldn't be asked about before. This is perfectly fine, except we
have a little over-eager assert. Remove that one.
* config/rs6000/rs6000.c (validate_condition_mode): Don't assert for
valid conditions.
From-SVN: r277936
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There is one place in the C parser that already handles a subset of
the C2x [[]] attribute syntax: c_parser_transaction_attributes.
This patch factors C2x attribute parsing out of there, extending it to
cover the full C2x attribute syntax (although currently only called
from that one place in the parser - so this is another piece of
preparation for supporting C2x attributes in the places where C2x says
they are valid, not the patch that actually enables such support).
The new C2X attribute parsing code uses the same representation for
scoped attributes as C++ does, so requiring parse_tm_stmt_attr to
handle the scoped attributes representation (C++ currently
special-cases TM attributes "to avoid the pedwarn in C++98 mode"; in C
I'm using an argument to c_parser_std_attribute_specifier to disable
the pedwarn_c11 call in the TM case).
Parsing of arguments to known attributes is shared by GNU and C2x
attributes. C2x specifies that unknown attributes are ignored (GCC
practice in such a case is to warn along with ignoring the attribute)
and gives a very general balanced-token-sequence syntax for arguments
to unknown attributes (known ones each have their own syntax which is
a subset of balanced-token-sequence), so support is added for parsing
and ignoring such balanced-token-sequences as arguments of unknown
attributes.
Some limited tests are added of different attribute usages in the TM
attribute case. The cases that become valid in the TM case include
extra commas inside [[]], and an explicit "gnu" namespace, as the
extra commas have no semantic effect for C2x attributes, while
accepting the "gnu" namespace seems appropriate because the attribute
in question is accepted inside __attribute__ (()), which is considered
equivalent to the "gnu" namespace inside [[]].
Bootstrapped with no regressions on x86_64-pc-linux-gnu.
gcc/c:
* c-parser.c (c_parser_attribute_arguments): New function.
Factored out of c_parser_gnu_attribute.
(c_parser_gnu_attribute): Use c_parser_attribute_arguments.
(c_parser_balanced_token_sequence, c_parser_std_attribute)
(c_parser_std_attribute_specifier): New functions.
(c_parser_transaction_attributes): Use
c_parser_std_attribute_specifier.
gcc/c-family:
* c-attribs.c (parse_tm_stmt_attr): Handle scoped attributes.
gcc/testsuite:
* gcc.dg/tm/attrs-1.c: New test.
* gcc.dg/tm/props-5.c: New test. Based on props-4.c.
From-SVN: r277935
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* g++.dg/cpp2a/spaceship-scalar1-neg.C: Change dg-do from run to
compile.
From-SVN: r277934
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-> mismatch.
* ipa-utils.c (ipa_merge_profiles): Fix fprintf format string
typo - mistmatch -> mismatch.
* ipa-profile.c (ipa_profile): Likewise.
* ipa-devirt.c (compare_virtual_tables): Fix a comment typo
- mistmatch -> mismatch.
cp/
* init.c (build_vec_delete_1): Fix a comment typo - mist -> must.
From-SVN: r277933
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The Library Working Group have approved a change to std::for_each_n that
requires it to handle negative N gracefully, which we were not doing for
random access iterators.
* include/bits/stl_algo.h (for_each_n): Handle negative count.
* testsuite/25_algorithms/for_each/for_each_n_debug.cc: New test.
From-SVN: r277932
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This introduces simplify_logical_relational_operation. Currently the
only thing implemented it can simplify is the IOR of two CONDs of the
same arguments.
* simplify-rtx.c (comparison_to_mask): New function.
(mask_to_comparison): New function.
(simplify_logical_relational_operation): New function.
(simplify_binary_operation_1): Call
simplify_logical_relational_operation.
From-SVN: r277931
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This test uses -masm=intel, which isn't supported by Darwin. Add the
necessary dg-require-effective-target.
gcc/testsuite/ChangeLog:
2019-11-07 Iain Sandoe <iain@sandoe.co.uk>
* gcc.target/i386/pr92258.c: Add dg-requires for masm_intel.
From-SVN: r277930
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PR c++/91370 - Implement P1041R4 and P1139R2 - Stronger Unicode reqs
* charset.c (narrow_str_to_charconst): Add TYPE argument. For
CPP_UTF8CHAR diagnose whenever number of chars is > 1, using
CPP_DL_ERROR instead of CPP_DL_WARNING.
(wide_str_to_charconst): For CPP_CHAR16 or CPP_CHAR32, use
CPP_DL_ERROR instead of CPP_DL_WARNING when multiple char16_t
or char32_t chars are needed.
(cpp_interpret_charconst): Adjust narrow_str_to_charconst caller.
* g++.dg/cpp1z/utf8-neg.C: Expect errors rather than -Wmultichar
warnings.
* g++.dg/ext/utf16-4.C: Expect errors rather than warnings.
* g++.dg/ext/utf32-4.C: Likewise.
* g++.dg/cpp2a/ucn2.C: New test.
From-SVN: r277929
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gcc/
PR other/92090
* config/rs6000/predicates.md (input_operand): Allow MODE_PARTIAL_INT
modes for integer constants.
gcc/testsuite/
PR other/92090
* gcc.target/powerpc/pr92090.c: New test.
From-SVN: r277928
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pgo)
PR ipa/92406
* ipa-fnsummary.c (analyze_function_body): Use get_create to copy
summary.
From-SVN: r277927
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cl_optimization_option_free.
* optc-save-gen.awk: Generate cl_target_option_free
and cl_optimization_option_free.
* opth-en.awk: Declare cl_target_option_free
and cl_optimization_option_free.
* tree.c (free_node): Use it.
From-SVN: r277926
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Shortly after I finished implementing the previous semantics, the
committee decided to remove the *_equality comparison categories, because
they were largely obsoleted by the earlier change that separated operator==
from its original dependency on operator<=>.
gcc/cp/
* method.c (enum comp_cat_tag, comp_cat_info): Remove *_equality.
(genericize_spaceship, common_comparison_type): Likewise.
* typeck.c (cp_build_binary_op): Move SPACESHIP_EXPR to be with the
relational operators, exclude other types no longer supported.
libstdc++-v3/
* libsupc++/compare: Remove strong_equality and weak_equality.
From-SVN: r277925
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* lto-streamer-in.c: Include alloc-pool.h.
(freeing_string_slot_hasher): Remove.
(string_slot_allocator): New object allocator.
(file_name_hash_table): Turn to hash_table<string_slot_hasher>.
(file_name_obstack): New obstack.
(canon_file_name): Allocate in obstack and allocator.
(lto_reader_init): Initialize obstack and allocator.
(lto_free_file_name_hash): New function.
* lto-streamer.h (lto_free_file_name_hash): New.
* lto.c (do_whole_program_analysis): Call lto_free_file_name_hash.
From-SVN: r277924
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2019-11-07 Feng Xue <fxue@os.amperecomputing.com>
PR tree-optimization/89134
* doc/invoke.texi (min-loop-cond-split-prob): Document new --params.
* params.def: Add min-loop-cond-split-prob.
* tree-ssa-loop-split.c (split_loop): Remove niter parameter, move some
outside checks on loop into the function.
(split_info): New class.
(find_vdef_in_loop, get_control_equiv_head_block): New functions.
(find_control_dep_blocks, vuse_semi_invariant_p): Likewise.
(ssa_semi_invariant_p, loop_iter_phi_semi_invariant_p): Likewise.
(control_dep_semi_invariant_p, stmt_semi_invariant_p_1): Likewise.
(stmt_semi_invariant_p, branch_removable_p): Likewise.
(get_cond_invariant_branch, compute_added_num_insns): Likewise.
(get_cond_branch_to_split_loop, do_split_loop_on_cond): Likewise.
(split_loop_on_cond): Likewise.
(tree_ssa_split_loops): Add loop split on conditional statement.
2019-11-07 Feng Xue <fxue@os.amperecomputing.com>
PR tree-optimization/89134
* gcc.dg/tree-ssa/loop-cond-split-1.c: New test.
* g++.dg/tree-ssa/loop-cond-split-1.C: New test.
* gcc.dg/torture/pr55107.c: Add -fno-split-loops.
From-SVN: r277923
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The RTXs used to express an overflow condition check in add/sub/mul are
too complex for if conversion. However, there is code in
noce_emit_store_flag which generates a simple CC compare as the base
for using a conditional load. All we have to do is to provide a
pattern to store the truth value of a CC compare into a GPR.
Done with the attached patch.
2019-11-07 Andreas Krebbel <krebbel@linux.ibm.com>
* config/s390/s390.md ("*cstorecc<mode>_z13"): New insn_and_split
pattern.
gcc/testsuite/ChangeLog:
2019-11-07 Andreas Krebbel <krebbel@linux.ibm.com>
* gcc.target/s390/addsub-signed-overflow-1.c: Expect lochi
instructions to be used.
* gcc.target/s390/addsub-signed-overflow-2.c: Likewise.
* gcc.target/s390/mul-signed-overflow-1.c: Likewise.
* gcc.target/s390/mul-signed-overflow-2.c: Likewise.
* gcc.target/s390/vector/vec-scalar-cmp-1.c: Check for 32 and 64
bit variant of lochi. Swap the values for the lochi's.
* gcc.target/s390/zvector/vec-cmp-1.c: Likewise.
From-SVN: r277922
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tree-vect-stmts.c:1683)
2019-11-07 Richard Biener <rguenther@suse.de>
PR tree-optimization/92405
* tree-vect-loop.c (vectorizable_reduction): Appropriately
restrict lane-reducing ops to single stmt chains.
From-SVN: r277921
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2019-11-07 Martin Jambor <mjambor@suse.cz>
PR lto/70929
* cif-code.def (MISMATCHED_ARGUMENTS): Removed.
* cgraph.h (gimple_check_call_matching_types): Remove
* cgraph.c (gimple_check_call_args): Likewise.
(gimple_check_call_matching_types): Likewise.
(symbol_table::create_edge): Do not call
gimple_check_call_matching_types.
(cgraph_edge::make_direct): Likewise.
(cgraph_edge::redirect_call_stmt_to_callee): Likewise.
* value-prof.h (check_ic_target): Remove.
* value-prof.c (check_ic_target): Remove.
(gimple_ic_transform): Do nat call check_ic_target.
* auto-profile.c (function_instance::find_icall_target_map): Likewise.
(afdo_indirect_call): Likewise.
* ipa-prop.c (update_indirect_edges_after_inlining): Do not call
gimple_check_call_matching_types.
* ipa-inline.c (early_inliner): Likewise.
testsuite/
* g++.dg/lto/pr70929_[01].C: New test.
* gcc.dg/winline-10.c: Adjust for the fact that inlining happens.
From-SVN: r277920
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This last patch adds the the __ssat16 and __usat16 intrinsics that perform
"clipping" to a particular bitwidth on packed SIMD values, setting the Q bit
as appropriate.
* config/arm/arm.md (arm_<simd32_op>): New define_expand.
(arm_<simd32_op><add_clobber_q_name>_insn): New define_insn.
* config/arm/arm_acle.h (__ssat16, __usat16): Define.
* config/arm/arm_acle_builtins.def: Define builtins for the above.
* config/arm/iterators.md (USSAT16): New int_iterator.
(simd32_op): Handle UNSPEC_SSAT16, UNSPEC_USAT16.
(sup): Likewise.
* config/arm/predicates.md (ssat16_imm): New predicate.
(usat16_imm): Likewise.
* config/arm/unspecs.md (UNSPEC_SSAT16, UNSPEC_USAT16): Define.
* gcc.target/arm/acle/simd32.c: Update test.
From-SVN: r277919
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This patch implements some more Q-setting intrinsics of the
multiply-accumulate
variety, but these are in the SIMD32 family in that they treat their
operands as packed SIMD values, but that's not important at the RTL level.
* config/arm/arm.md (arm_<simd32_op><add_clobber_q_name>_insn):
New define_insns.
(arm_<simd32_op>): New define_expands.
* config/arm/arm_acle.h (__smlad, __smladx, __smlsd, __smlsdx,
__smuad, __smuadx): Define.
* config/arm/arm_acle_builtins.def: Define builtins for the above.
* config/arm/iterators.md (SIMD32_TERNOP_Q): New int_iterator.
(SIMD32_BINOP_Q): Likewise.
(simd32_op): Handle the above.
* config/arm/unspecs.md: Define unspecs for the above.
* gcc.target/arm/acle/simd32.c: Update test.
From-SVN: r277918
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This patch adds in plumbing for the ACLE intrinsics that set the GE bits in
APSR. These are special SIMD instructions in Armv6 that pack bytes or
halfwords into the 32-bit general-purpose registers and set the GE bits in
APSR to indicate if some of the "lanes" of the result have overflowed or
have some other instruction-specific property.
These bits can then be used by the SEL instruction (accessed through the
__sel intrinsic) to select lanes for further processing.
This situation is similar to the Q-setting intrinsics: we have to track
the GE fake register, detect when a function reads it through __sel and restrict
existing patterns that may generate GE-clobbering instruction from
straight-line C code when reading the GE bits matters.
* config/arm/aout.h (REGISTER_NAMES): Add apsrge.
* config/arm/arm.md (APSRGE_REGNUM): Define.
(arm_<simd32_op>): New define_insn.
(arm_sel): Likewise.
* config/arm/arm.h (FIXED_REGISTERS): Add entry for apsrge.
(CALL_USED_REGISTERS): Likewise.
(REG_ALLOC_ORDER): Likewise.
(FIRST_PSEUDO_REGISTER): Update value.
(ARM_GE_BITS_READ): Define.
* config/arm/arm.c (arm_conditional_register_usage): Clear
APSRGE_REGNUM from operand_reg_set.
(arm_ge_bits_access): Define.
* config/arm/arm-builtins.c (arm_check_builtin_call): Handle
ARM_BUIILTIN_sel.
* config/arm/arm-protos.h (arm_ge_bits_access): Declare prototype.
* config/arm/arm-fixed.md (add<mode>3): Convert to define_expand.
FAIL if ARM_GE_BITS_READ.
(*arm_add<mode>3): New define_insn.
(sub<mode>3): Convert to define_expand. FAIL if ARM_GE_BITS_READ.
(*arm_sub<mode>3): New define_insn.
* config/arm/arm_acle.h (__sel, __sadd8, __ssub8, __uadd8, __usub8,
__sadd16, __sasx, __ssax, __ssub16, __uadd16, __uasx, __usax,
__usub16): Define.
* config/arm/arm_acle_builtins.def: Define builtins for the above.
* config/arm/iterators.md (SIMD32_GE): New int_iterator.
(simd32_op): Handle the above.
* config/arm/unspecs.md (UNSPEC_GE_SET): Define.
(UNSPEC_SEL, UNSPEC_SADD8, UNSPEC_SSUB8, UNSPEC_UADD8, UNSPEC_USUB8,
UNSPEC_SADD16, UNSPEC_SASX, UNSPEC_SSAX, UNSPEC_SSUB16, UNSPEC_UADD16,
UNSPEC_UASX, UNSPEC_USAX, UNSPEC_USUB16): Define.
* gcc.target/arm/acle/simd32.c: Update test.
* gcc.target/arm/acle/simd32_sel.c: New test.
From-SVN: r277917
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This patch implements some more Q-setting intrinsics form the SMLA* group.
These can set the saturation bit on overflow in the accumulation step.
Like earlier, these have non-Q-setting RTL forms as well for when the
Q-bit read
is not needed.
* config/arm/arm.md (arm_smlabb_setq): New define_insn.
(arm_smlabb): New define_expand.
(*maddhisi4tb): Rename to...
(maddhisi4tb): ... This.
(*maddhisi4tt): Rename to...
(maddhisi4tt): ... This.
(arm_smlatb_setq): New define_insn.
(arm_smlatb): New define_expand.
(arm_smlatt_setq): New define_insn.
(arm_smlatt): New define_expand.
(arm_<smlaw_op><add_clobber_name>_insn): New define_insn.
(arm_<smlaw_op>): New define_expand.
* config/arm/arm_acle.h (__smlabb, __smlatb, __smlabt, __smlatt,
__smlawb, __smlawt): Define.
* config/arm_acle_builtins.def: Define builtins for the above.
* config/arm/iterators.md (SMLAWBT): New int_iterator.
(slaw_op): New int_attribute.
* config/arm/unspecs.md (UNSPEC_SMLAWB, UNSPEC_SMLAWT): Define.
* gcc.target/arm/acle/dsp_arith.c: Update test.
From-SVN: r277916
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This patch implements some more Q-bit-setting intrinsics from ACLE.
With the plumbing from patch 1 in place they are a simple builtin->RTL
affair.
* config/arm/arm.md (arm_<ss_op>): New define_expand.
(arm_<ss_op><add_clobber_q_name>_insn): New define_insn.
* config/arm/arm_acle.h (__qadd, __qsub, __qdbl): Define.
* config/arm/arm_acle_builtins.def: Add builtins for qadd, qsub.
* config/arm/iterators.md (SSPLUSMINUS): New code iterator.
(ss_op): New code_attr.
* gcc.target/arm/acle/dsp_arith.c: New test.
From-SVN: r277915
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This patch adds the plumbing for and an implementation of the saturation
intrinsics from ACLE, in particular the __ssat, __usat intrinsics.
These intrinsics set the Q sticky bit in APSR if an overflow occurred.
ACLE allows the user to read that bit (within the same function, it's not
defined across function boundaries) using the __saturation_occurred
intrinsic
and reset it using __set_saturation_occurred.
Thus, if the user cares about the Q bit they would be using a flow such as:
__set_saturation_occurred (0); // reset the Q bit
...
__ssat (...) // Do some calculations involving __ssat
...
if (__saturation_occurred ()) // if Q bit set handle overflow
...
For the implementation this has a few implications:
* We must track the Q-setting side-effects of these instructions to make
sure
saturation reading/writing intrinsics are ordered properly.
This is done by introducing a new "apsrq" register (and associated
APSRQ_REGNUM) in a similar way to the "fake"" cc register.
* The RTL patterns coming out of these intrinsics can have two forms:
one where they set the APSRQ_REGNUM and one where they don't.
Which one is used depends on whether the function cares about reading the Q
flag. This is detected using the TARGET_CHECK_BUILTIN_CALL hook on the
__saturation_occurred, __set_saturation_occurred occurrences.
If no Q-flag read is present in the function we'll use the simpler
non-Q-setting form to allow for more aggressive scheduling and such.
If a Q-bit read is present then the Q-setting form is emitted.
To avoid adding two patterns for each intrinsic to the MD file we make
use of define_subst to auto-generate the Q-setting forms
* Some existing patterns already produce instructions that may clobber the
Q bit, but they don't model it (as we didn't care about that bit up till
now).
Since these patterns can be generated from straight-line C code they can
affect
the Q-bit reads from intrinsics. Therefore they have to be disabled when
a Q-bit read is present. These are mostly patterns in arm-fixed.md that are
not very common anyway, but there are also a couple of widening
multiply-accumulate patterns in arm.md that can set the Q-bit during
accumulation.
There are more Q-setting intrinsics in ACLE, but these will be
implemented in
a more mechanical fashion once the infrastructure in this patch goes in.
* config/arm/aout.h (REGISTER_NAMES): Add apsrq.
* config/arm/arm.md (APSRQ_REGNUM): Define.
(add_setq): New define_subst.
(add_clobber_q_name): New define_subst_attr.
(add_clobber_q_pred): Likewise.
(maddhisi4): Change to define_expand. Split into mult and add if
ARM_Q_BIT_READ.
(arm_maddhisi4): New define_insn.
(*maddhisi4tb): Disable for ARM_Q_BIT_READ.
(*maddhisi4tt): Likewise.
(arm_ssat): New define_expand.
(arm_usat): Likewise.
(arm_get_apsr): New define_insn.
(arm_set_apsr): Likewise.
(arm_saturation_occurred): New define_expand.
(arm_set_saturation): Likewise.
(*satsi_<SAT:code>): Rename to...
(satsi_<SAT:code><add_clobber_q_name>): ... This.
(*satsi_<SAT:code>_shift): Disable for ARM_Q_BIT_READ.
* config/arm/arm.h (FIXED_REGISTERS): Mark apsrq as fixed.
(CALL_USED_REGISTERS): Mark apsrq.
(FIRST_PSEUDO_REGISTER): Update value.
(REG_ALLOC_ORDER): Add APSRQ_REGNUM.
(machine_function): Add q_bit_access.
(ARM_Q_BIT_READ): Define.
* config/arm/arm.c (TARGET_CHECK_BUILTIN_CALL): Define.
(arm_conditional_register_usage): Clear APSRQ_REGNUM from
operand_reg_set.
(arm_q_bit_access): Define.
* config/arm/arm-builtins.c: Include stringpool.h.
(arm_sat_binop_imm_qualifiers,
arm_unsigned_sat_binop_unsigned_imm_qualifiers,
arm_sat_occurred_qualifiers, arm_set_sat_qualifiers): Define.
(SAT_BINOP_UNSIGNED_IMM_QUALIFIERS,
UNSIGNED_SAT_BINOP_UNSIGNED_IMM_QUALIFIERS, SAT_OCCURRED_QUALIFIERS,
SET_SAT_QUALIFIERS): Likewise.
(arm_builtins): Define ARM_BUILTIN_SAT_IMM_CHECK.
(arm_init_acle_builtins): Initialize __builtin_sat_imm_check.
Handle 0 argument expander.
(arm_expand_acle_builtin): Handle ARM_BUILTIN_SAT_IMM_CHECK.
(arm_check_builtin_call): Define.
* config/arm/arm.md (ssmulsa3, usmulusa3, usmuluha3,
arm_ssatsihi_shift, arm_usatsihi): Disable when ARM_Q_BIT_READ.
* config/arm/arm-protos.h (arm_check_builtin_call): Declare prototype.
(arm_q_bit_access): Likewise.
* config/arm/arm_acle.h (__ssat, __usat, __ignore_saturation,
__saturation_occurred, __set_saturation_occurred): Define.
* config/arm/arm_acle_builtins.def: Define builtins for ssat, usat,
saturation_occurred, set_saturation_occurred.
* config/arm/unspecs.md (UNSPEC_Q_SET): Define.
(UNSPEC_APSR_READ): Likewise.
(VUNSPEC_APSR_WRITE): Likewise.
* config/arm/arm-fixed.md (ssadd<mode>3): Convert to define_expand.
(*arm_ssadd<mode>3): New define_insn.
(sssub<mode>3): Convert to define_expand.
(*arm_sssub<mode>3): New define_insn.
(ssmulsa3): Convert to define_expand.
(*arm_ssmulsa3): New define_insn.
(usmulusa3): Convert to define_expand.
(*arm_usmulusa3): New define_insn.
(ssmulha3): FAIL if ARM_Q_BIT_READ.
(arm_ssatsihi_shift, arm_usatsihi): Disable for ARM_Q_BIT_READ.
* config/arm/iterators.md (qaddsub_clob_q): New mode attribute.
* gcc.target/arm/acle/saturation.c: New test.
* gcc.target/arm/acle/sat_no_smlatb.c: Likewise.
* lib/target-supports.exp (check_effective_target_arm_qbit_ok_nocache):
Define..
(check_effective_target_arm_qbit_ok): Likewise.
(add_options_for_arm_qbit): Likewise.
From-SVN: r277914
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2019-11-07 Martin Liska <mliska@suse.cz>
PR c++/92354
* cgraph.c (delete_function_version): Clear global
variable version_info_node if equal to deleted
function.
2019-11-07 Martin Liska <mliska@suse.cz>
PR c++/92354
* g++.target/i386/pr92354.C: New test.
From-SVN: r277913
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2019-11-07 Martin Liska <mliska@suse.cz>
* fold-const.c (operand_compare::operand_equal_p): Add comparison
of CONSTRUCTOR_NO_CLEARING.
(operand_compare::hash_operand): Likewise.
From-SVN: r277912
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From-SVN: r277911
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2019-11-07 Martin Liska <mliska@suse.cz>
* all source files: Reapply all revisions mentioned in LOCAL_PATCHES.
From-SVN: r277910
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2019-11-07 Martin Liska <mliska@suse.cz>
* merge.sh: Update to use llvm-project git repository.
* all source files: Merge from upstream
82588e05cc32bb30807e480abd4e689b0dee132a.
From-SVN: r277909
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gcc/
Support 64-bit double and 64-bit long double configurations.
PR target/92055
* config.gcc (tm_defines) [avr]: Set from --with-double=,
--with-long-double=.
* config/avr/t-multilib: Remove.
* config/avr/t-avr: Output of genmultilib.awk is now fully
dynamically generated and no more part of the repo.
(HAVE_DOUBLE_MULTILIB, HAVE_LONG_DOUBLE_MULTILIB): New variables.
Pass them down to...
* config/avr/genmultilib.awk: ...here and handle them.
* gcc/config/avr/avr.opt (-mdouble=, avr_double). New option and var.
(-mlong-double=, avr_long_double). New option and var.
* common/config/avr/avr-common.c (opts.h, diagnostic.h): Include.
(TARGET_OPTION_OPTIMIZATION_TABLE) <-mdouble=, -mlong-double=>:
Set default as requested by --with-double=
(TARGET_HANDLE_OPTION): Define to this...
(avr_handle_option): ...new hook worker.
* config/avr/avr.h (DOUBLE_TYPE_SIZE): Define to avr_double.
(LONG_DOUBLE_TYPE_SIZE): Define to avr_long_double.
(avr_double_lib): New proto for spec function.
(EXTRA_SPEC_FUNCTIONS) <double-lib>: Add.
(DRIVER_SELF_SPECS): Call %:double-lib.
* config/avr/avr.c (avr_option_override): Assert
sizeof(long double) >= sizeof(double) for the target.
* config/avr/avr-c.c (avr_cpu_cpp_builtins)
[__HAVE_DOUBLE_MULTILIB__, __HAVE_LONG_DOUBLE_MULTILIB__]
[__HAVE_DOUBLE64__, __HAVE_DOUBLE32__, __DEFAULT_DOUBLE__=]
[__HAVE_LONG_DOUBLE64__, __HAVE_LONG_DOUBLE32__]
[__HAVE_LONG_DOUBLE_IS_DOUBLE__, __DEFAULT_LONG_DOUBLE__=]:
New built-in define depending on --with-double=, --with-long-double=.
* config/avr/driver-avr.c (avr_double_lib): New spec function.
* doc/invoke.tex (AVR Options) <-mdouble=,-mlong-double=>: Doc.
* doc/install.texi (Cross-Compiler-Specific Options)
<--with-double=, --with-long-double=>: Doc.
libgcc/
Support 64-bit double and 64-bit long double configurations.
PR target/92055
* config/avr/t-avr (HOST_LIBGCC2_CFLAGS): Only add -DF=SF if
long double is a 32-bit type.
* config/avr/t-avrlibc: Copy double64 and long-double64
multilib(s) from the vanilla one.
* config/avr/t-copy-libgcc: New Makefile snip.
From-SVN: r277908
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2019-11-07 Richard Biener <rguenther@suse.de>
* dbgcnt.def (gimple_unroll): New.
* tree-ssa-loop-ivcanon.c (try_unroll_loop_completely): Check
gimple_unroll debug counter before applying transform.
(try_peel_loop): Likewise.
From-SVN: r277907
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2019-11-07 Prathamesh Kulkarni <prathamesh.kulkarni@linaro.org>
testsuite/
* gcc.dg/tree-ssa/pr92163.c: Add dg-require-effective-target fopenacc.
From-SVN: r277906
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and ew.d e0 edit descriptors for output)
2019-11-06 Jerry DeLisle <jvdelisle@gcc.ngu.org>
PR fortran/90374
* io.c (check_format): Allow zero width for D, E, EN, and ES
specifiers as default and when -std=F2018 is given. Retain
existing errors when using the -fdec family of flags.
* libgfortran/io/format.c (parse_format_list): Relax format checking for
zero width as default and when -std=f2018.
io/format.h (format_token): Move definition to io.h.
io/io.h (format_token): Add definition here to allow access to
this definition at higher levels. Rename the declaration of
write_real_g0 to write_real_w0 and add a new format_token
argument, allowing higher level functions to pass in the
token for handling of g0 vs the other zero width specifiers.
io/transfer.c (formatted_transfer_scalar_write): Add checks for
zero width and call write_real_w0 to handle it.
io/write.c (write_real_g0): Remove.
(write_real_w0): Add new, same as previous write_real_g0 except
check format token to handle the g0 case.
* gfortran.dg/fmt_error_10.f: Modify for new constraints.
* gfortran.dg/fmt_error_7.f: Add dg-options "-std=f95".
* gfortran.dg/fmt_error_9.f: Modify for new constraints.
* gfortran.dg/fmt_zero_width.f90: New test.
From-SVN: r277905
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gcc/testsuite/ChangeLog:
2019-11-07 Xiong Hu Luo <luoxhu@linux.ibm.com>
* gcc.target/powerpc/pr72804.c: Move inline options from
dg-require-effective-target to dg-options.
From-SVN: r277904
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This patch is another piece of preparation for C2x attributes support.
C2x attributes require unbounded lookahead in the parser, because the
token sequence '[[' that starts a C2x attribute is also valid in
Objective-C in some of the same contexts, so it is necessary to see
whether the matching ']]' are consecutive tokens or not to determine
whether those tokens start an attribute.
Unbounded lookahead means lexing an unbounded number of tokens before
they are parsed. c_lex_one_token does various context-sensitive
processing of tokens that cannot be done at that lookahead time,
because it depends on information (such as whether particular
identifiers are typedefs) that may be different at the time it is
relevant than at the time the lookahead is needed (recall that more or
less arbitrary C code, including declarations and statements, can
appear inside expressions in GNU C).
Most of that context-sensitive processing is not a problem, simply
because it is not needed for lookahead purposes so can be deferred
until the tokens lexed during lookahead are parsed. However, the
earliest piece of context-sensitive processing is the handling of
string literals based on flags passed to c_lex_with_flags, which
determine whether adjacent literals are concatenated and whether
translation to the execution character set occurs.
Because the choice of whether to translate to the execution character
set is context-sensitive, this means that unbounded lookahead requires
the C parser to move to the approach used by the C++ parser, where
string literals are generally not translated or concatenated from
within c_lex_with_flags, but only later in the parser once it knows
whether translation is needed. (Translation requires the tokens in
their form before concatenation.)
Thus, this patch makes that change to the C parser. Flags in the
parser are still used for two special cases similar to C++: the
handling of an initial #pragma pch_preprocess, and arranging for
strings inside attributes not to be translated (the latter is made
more logically correct by saving and restoring the flags, as in the
C++ parser, rather than assuming that the state outside the attribute
was always to translate string literals, which might not be the case
in corner cases involving declarations and attributes inside
attributes).
The consequent change to pragma_lex to use c_parser_string_literal
makes it disallow wide strings and disable translation in that
context, which also follows C++ and is more logically correct than the
previous state without special handling in that regard. Translation
to the execution character set is always disabled when string
constants are handled in the GIMPLE parser.
Although the handling of strings is now a lot closer to that in C++,
there are still some differences, in particular regarding the handling
of locations. See c-c++-common/Wformat-pr88257.c, which has different
expected multiline diagnostic output for C and C++, for example; I'm
not sure whether the C or C++ output is better there (C++ has a more
complete range than C, C mentions a macro definition location that C++
doesn't), but I tried to keep the locations the same as those
previously used by the C front end, as far as possible, to minimize
the testsuite changes needed, rather than possibly making them closer
to those used with C++.
The only changes needed for tests of user-visible diagnostics were for
the wording of one diagnostic changing to match C++ (as a consequence
of having a check for wide strings based on a flag in a general
string-handling function rather than in a function specific to asm).
However, although locations are extremely similar to what they were
before, I couldn't make them completely identical in all cases. (My
understanding of the implementation reason for the differences is as
follows: lex_string uses src_loc from each cpp_token; the C parser is
using the virtual location from cpp_get_token_with_location as called
by c_lex_with_flags, and while passing that through
linemap_resolve_location with LRK_MACRO_DEFINITION_LOCATION, as this
patch does, produces something very close to what lex_string uses,
it's not completely identical in some cases.)
This results in changes being needed to two of the gcc.dg/plugin tests
that use a plugin to test details of how string locations are handled.
Because the tests being changed are for ICEs and the only change is to
the details of the particular non-user-visible error that code gives
in cases it can't handle (one involving __FILE__, one involving a
string literal from stringizing), I think it's OK to change that
non-user-visible error and that the new errors are no worse than the
old ones. So these particular errors are now different for C and C++
(some other messages in those tests already had differences between C
and C++).
Bootstrapped with no regressions on x86_64-pc-linux-gnu.
gcc/c:
* c-parser.c (c_parser): Remove lex_untranslated_string. Add
lex_joined_string and translate_strings_p.
(c_lex_one_token): Pass 0 or C_LEX_STRING_NO_JOIN to
c_lex_with_flags.
(c_parser_string_literal): New function.
(c_parser_static_assert_declaration_no_semi): Use
c_parser_string_literal. Do not set lex_untranslated_string.
(c_parser_asm_string_literal): Use c_parser_string_literal.
(c_parser_simple_asm_expr): Do not set lex_untranslated_string.
(c_parser_gnu_attributes): Set and restore translate_strings_p
instead of lex_untranslated_string.
(c_parser_asm_statement): Do not set lex_untranslated_string.
(c_parser_asm_operands): Likewise.
(c_parser_has_attribute_expression): Set and restore
translate_strings_p instead of lex_untranslated_string.
(c_parser_postfix_expression): Use c_parser_string_literal.
(pragma_lex): Likewise.
(c_parser_pragma_pch_preprocess): Set lex_joined_string.
(c_parse_file): Set translate_strings_p.
* gimple-parser.c (c_parser_gimple_postfix_expression)
(c_parser_gimple_or_rtl_pass_list): Use c_parser_string_literal.
* c-parser.c (c_parser_string_literal): Declare function.
gcc/testsuite:
* gcc.dg/asm-wide-1.c, gcc.dg/diagnostic-token-ranges.c,
gcc.dg/plugin/diagnostic-test-string-literals-1.c,
gcc.dg/plugin/diagnostic-test-string-literals-2.c: Update expected
diagnostics.
From-SVN: r277903
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ISO C++ paper D1907R1 proposes "structural type" as an alternative to the
current notion of "strong structural equality", which has various problems.
I'm implementing it to give people a chance to try it.
The build_base_field changes are to make it easier for structural_type_p to
see whether a base is private or protected.
* tree.c (structural_type_p): New.
* pt.c (invalid_nontype_parm_type_p): Use it.
* class.c (build_base_field_1): Take binfo. Copy TREE_PRIVATE.
(build_base_field): Pass binfo.
From-SVN: r277902
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Here unify was getting confused by the VIEW_CONVERT_EXPR we add in
finish_id_expression_1 to make class NTTP const when they're used in an
expression.
Tested x86_64-pc-linux-gnu, applying to trunk.
* pt.c (unify): Handle VIEW_CONVERT_EXPR.
From-SVN: r277901
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gcc/cp/
2019-11-06 Andrew Sutton <asutton@lock3software.com>
* constraint.cc (build_parameter_mapping): Use
current_template_parms when the declaration is not available.
(norm_info::norm_info) Make explicit.
(normalize_constraint_expression): Factor into a separate overload
that takes arguments, and use that in the original function.
(tsubst_nested_requirement): Use satisfy_constraint instead of
trying to evaluate this as a constant expression.
(finish_nested_requirement): Keep the normalized constraint and the
original normalization arguments with the requirement.
(diagnose_nested_requirement): Use satisfy_constraint. Tentatively
implement more comprehensive diagnostics, but do not enable.
* parser.c (cp_parser_requires_expression): Relax requirement that
requires-expressions can live only inside templates.
* pt.c (any_template_parm_r): Look into type of PARM_DECL.
2019-11-06 Jason Merrill <jason@redhat.com>
* pt.c (use_pack_expansion_extra_args_p): Still do substitution if
all packs are simple pack expansions.
(add_extra_args): Check that the extra args aren't dependent.
gcc/testsuite/
* lib/prune.exp: Ignore "in requirements" in diagnostics.
* g++.dg/cpp2a/requires-18.C: New test.
* g++.dg/cpp2a/requires-19.C: New test.
From-SVN: r277900
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From-SVN: r277899
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When multiple hard registers are required to hold the frame pointer,
ensure that the registers after the first are marked as non-allocatable,
live and eliminable as well.
2019-11-07 Kwok Cheung Yeung <kcy@codesourcery.com>
gcc/
* ira.c (setup_alloc_regs): Setup no_unit_alloc_regs for
frame pointer in multiple registers.
(ira_setup_eliminable_regset): Setup eliminable_regset,
ira_no_alloc_regs and regs_ever_live for frame pointer in
multiple registers.
From-SVN: r277895
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gcc/ChangeLog:
2019-11-06 Kelvin Nilsen <kelvin@gcc.gnu.org>
* config/rs6000/vsx.md (xxswapd_<mode>): Add support for V2DF and
V2DI modes.
From-SVN: r277893
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The test works by checking that a known framework path is accessible
when the '-F' option is given. We need to find a framework path that
exists across a range of Darwin versions, and parseable by GCC. This
adjusts the test to use a header path that exists and is parsable from
Darwin9 through Darwin19.
gcc/testsuite/ChangeLog:
2019-11-06 Iain Sandoe <iain@sandoe.co.uk>
* gcc.dg/framework-1.c: Adjust test header path.
From-SVN: r277892
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