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https://gcc.gnu.org/ml/gcc-patches/2017-12/msg01055.html
PR c++/59930
* decl.c (xref_tag_1): Correct comments about template friends and
default args.
* friend.c (make_friend_class): Move comments concerning
self-friendliness to code dealing with such.
* pt.c (check_default_tmpl_args): Deal with template friend
classes too.
(push_template_decl_real): Check default args for non-function
template friends.
PR c++/59930
* g++.dg/cpp0x/temp_default4.C: Adjust diagnostic.
* g++.old-deja/g++.pt/friend23.C: Likewise.
* g++.old-deja/g++.pt/friend24.C: Delete.
From-SVN: r255698
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PR tree-optimization/83269
* fold-const.c (fold_binary_loc): Perform (-A) - B -> (-B) - A
subtraction in arg0's type if type is signed and arg0 is unsigned.
Formatting fix.
* gcc.c-torture/execute/pr83269.c: New test.
From-SVN: r255697
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PR sanitizer/81281
* match.pd ((T)(P + A) - (T)P -> (T) A): Use @@0 instead of @0 and
convert? on @0 instead of convert. Check type of @1, not @0.
((T)P - (T)(P + A) -> -(T) A): Use @@0 instead of @0 and
convert? on @0 instead of convert. Check type of @1, not @0.
((T)(P + A) - (T)(P + B) -> (T)A - (T)B): Use @@0 instead of @0,
only optimize if either both @1 and @2 types are narrower
precision, or both are wider or equal precision, and in the former
case only if both have undefined overflow.
* gcc.dg/pr81281-3.c: New test.
From-SVN: r255696
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innermost array instead of Esize of its component...
gcc/ada/
2017-12-15 Eric Botcazou <ebotcazou@adacore.com>
* exp_aggr.adb (Aggr_Assignment_OK_For_Backend): Use Component_Size of
the innermost array instead of Esize of its component type to exclude
inappropriate array types, including packed array types.
2017-12-15 Hristian Kirtchev <kirtchev@adacore.com>
* sem_prag.adb (Analyze_Input_Item): Allow concurrent types to appear
within the input list of Initializes. Remove the uses of Input_OK.
2017-12-15 Ed Schonberg <schonberg@adacore.com>
* exp_ch4.adb (Expand_N_In): Do not replace a membership test on a
scalar type with a validity test when the membership appears in a
predicate expression, to prevent a spurious error when predicate is
specified static.
* sem_ch13.adb (Build_Predicate_Functions): Add warning if a static
predicate, after constant-folding, reduces to True and is this
redundant.
* par-ch4.adb: Typo fixes and minor reformattings.
2017-12-15 Hristian Kirtchev <kirtchev@adacore.com>
* sem_elab.adb (Ensure_Prior_Elaboration_Static): Mark the generated
with clause as being implicit for an instantiation in order to
circumvent an issue with 'W' and 'Z' line encodings in ALI files.
2017-12-15 Ed Schonberg <schonberg@adacore.com>
* sem_util.adb (Is_Potentially_Unevaluated): Detect further cases of
misuse of 'Old that appear within an expression that is potentially
unevaluated, when the prefix of the attribute does not statically
designate an object (e.g. a function call).
2017-12-15 Ed Schonberg <schonberg@adacore.com>
* sem_ch6.adb (Conformking_Types): Two incomplete types are conforming
when one of them is used as a generic actual, but only within an
instantiation.
* einfo.ads: Clarify use of flag Used_As_Generic_Actual.
2017-12-15 Justin Squirek <squirek@adacore.com>
* sem_attr.adb (Resolve_Attribute): Modify check for aliased view on
prefix to use the prefix's original node to avoid looking at expanded
conversions for certain array types.
2017-12-15 Ed Schonberg <schonberg@adacore.com>
* sem_res.adb (Resolve_Membership_Op): Add warning on a membership
operation on a scalar type for which there is a user-defined equality
operator.
2017-12-15 Yannick Moy <moy@adacore.com>
* doc/gnat_rm/implementation_defined_pragmas.rst: Add Ghost assertion
policy.
gcc/testsuite/
2017-12-15 Justin Squirek <squirek@adacore.com>
* gnat.dg/aliasing4.adb: New testcase.
2017-12-15 Ed Schonberg <schonberg@adacore.com>
* gnat.dg/incomplete6.adb, gnat.dg/incomplete6.ads: New testcase.
2017-12-15 Hristian Kirtchev <kirtchev@adacore.com>
* gnat.dg/initializes.ads, gnat.dg/initializes.adb: New testcase.
2017-12-15 Eric Botcazou <ebotcazou@adacore.com>
* gnat.dg/component_size.adb: New testcase.
From-SVN: r255695
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-fsanitize=null)
2017-12-15 Richard Biener <rguenther@suse.de>
PR lto/83388
* internal-fn.def (IFN_NOP): Add.
* internal-fn.c (expand_NOP): Do nothing.
* lto-streamer-in.c (input_function): Instead of removing
sanitizer calls replace them with IFN_NOP calls.
* gcc.dg/lto/pr83388_0.c: New testcase.
From-SVN: r255694
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2017-12-15 Hristian Kirtchev <kirtchev@adacore.com>
* sem_prag.adb (Analyze_Initialization_Item): Remove the specialized
processing for a null initialization item. Such an item is always
illegal.
2017-12-15 Bob Duff <duff@adacore.com>
* types.ads, types.h, libgnat/a-except.adb, exp_ch11.adb
(PE_Build_In_Place_Mismatch): New reason code for raising when the
BIPalloc formal parameter is incorrect. This can happen if a compiler
bug causes a mismatch of build-in-place between caller and callee.
* exp_ch6.adb (Expand_N_Extended_Return_Statement): Use
PE_Build_In_Place_Mismatch.
2017-12-15 Ed Schonberg <schonberg@adacore.com>
* exp_ch4.ads, exp_ch4.adb (Expand_N_Reduction_Expression): New
procedure.
* exp_util.adb (Insert_Actions): Handle N_Reduction_Expression.
* expander.adb (Expand): Call Expand_N_Reduction_Expression
* par-ch4.adb (P_Reduction_Expression): New procedure.
(P_Iterated_Component_Assoc_Or_Reduction): New precedure, extension of
P_Iterated_Component_Association.
(OK_Reduction_Expression_Parameter): New procedure.
(P_Aggregate_Or_Paren_Expr): Improve error message for malformed delta
aggregate.
* sem.adb (Analyze): Call Analyze_Reduction_Expression and
Analyze_Reduction_Expression_Parameter
* sinfo.ads, sinfo.adb: New node kinds N_Reduction_Expression and
N_Reduction_Expression_Parameter.
* sem_ch4.ads, sem_ch4.adb (Analyze_Reduction_Expression,
Analyze_Reduction_Expression_Parameter): New procedures.
* sem_res.adb (Resolve): Handle Reduction_Expression and
Reduction_Expression_Parameter
* sem_spark.adb: Dummy entries for Reduction_Expression and
Reduction_Expression_Parameter
* sprint.adb (Sprint_Node_Actual): Print Reduction_Expression,
Reduction_Expression_Parameter
From-SVN: r255693
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store_info and read_info_type in dse.c represented the ranges as
start/end, but a lot of the internal code used offset/width instead.
Using offset/width throughout fits better with the poly_int.h
range-checking functions.
2017-12-15 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* dse.c (store_info, read_info_type): Replace begin and end with
offset and width.
(print_range): New function.
(set_all_positions_unneeded, any_positions_needed_p)
(check_mem_read_rtx, scan_stores, scan_reads, dse_step5): Update
accordingly.
(record_store): Likewise. Optimize the case in which all positions
are unneeded.
(get_stored_val): Replace read_begin and read_end with read_offset
and read_width.
(replace_read): Update call accordingly.
Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>
From-SVN: r255692
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* gimple-loop-interchange.cc (STMT_COST_RATIO): New macro.
(loop_cand::m_num_stmts, loop_cand::m_const_init_reduc): New members.
(loop_cand::loop_cand): Initialize above members.
(loop_cand::supported_operations): Delete.
(loop_cand::can_interchange_p): Inline above function.
(loop_cand::classify_simple_reduction): Record number of constant
initialized simple reductions.
(should_interchange_loops): New parameters. Check stmt cost of loops
to be interchange.
(tree_loop_interchange::interchange): Prepare stmt cost of outer loop.
Update call to should_interchange_loops.
(should_interchange_loop_nest): Update call to
should_interchange_loops.
From-SVN: r255691
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gcc/ada/
2017-12-15 Bob Duff <duff@adacore.com>
* einfo.ads: Comment fix.
2017-12-15 Piotr Trojanek <trojanek@adacore.com>
* s-vercon.adb: Minor style fixes.
2017-12-15 Ed Schonberg <schonberg@adacore.com>
* sem_ch6.adb (Freeze_Expr_Types): Do not emit a freeze node for an
itype that is the type of a discriminant-dependent component.
2017-12-15 Hristian Kirtchev <kirtchev@adacore.com>
* sem_prag.adb (Analyze_Part_Of): The context-specific portion of the
analysis is now directed to several specialized routines.
(Check_Part_Of_Abstract_State): New routine.
(Check_Part_Of_Concurrent_Type): New routine. Reimplement the checks
involving the item, the single concurrent type, and their respective
contexts.
* sem_res.adb (Resolve_Entity_Name): Potential constituents of a single
concurrent type are now recorded regardless of the SPARK mode.
* sem_util.adb (Check_Part_Of_Reference): Split some of the tests in
individual predicates. A Part_Of reference is legal when it appears
within the statement list of the object's immediately enclosing
package.
(Is_Enclosing_Package_Body): New routine.
(Is_Internal_Declaration_Or_Body): New routine.
(Is_Single_Declaration_Or_Body): New routine.
(Is_Single_Task_Pragma): New routine.
gcc/testsuite/
2017-12-15 Ed Schonberg <schonberg@adacore.com>
* gnat.dg/expr_func2.ads, gnat.dg/expr_func2.adb: New testcase.
From-SVN: r255690
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memory usage)
2017-12-15 Eric Botcazou <ebotcazou@adacore.com>
PR target/66488
* ggc-page.c (HOST_BITS_PER_PTR): Do not define here...
* hwint.h (HOST_BITS_PER_PTR): ...but here instead.
* config/i386/xm-mingw32.h (HOST_BITS_PER_PTR): Delete.
From-SVN: r255687
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2017-12-15 Patrick Bernardi <bernardi@adacore.com>
* gnat_ugn.texi: Regenerate.
2017-12-15 Bob Duff <duff@adacore.com>
* gnatvsn.ads: Minor comment fixes.
From-SVN: r255686
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Analysis" to include more details about...
gcc/ada/
2017-12-15 Patrick Bernardi <bernardi@adacore.com>
* doc/gnat_ugn/gnat_and_program_execution.rst: Update section "Dynamic
Stack Usage Analysis" to include more details about GNAT_STACK_LIMIT.
2017-12-15 Hristian Kirtchev <kirtchev@adacore.com>
* exp_util.adb (Add_Own_DIC): Ensure that the expression of the pragma
is available (Is_Verifiable_DIC_Pragma): Moved from Sem_Util.
* sem_util.adb (Has_Full_Default_Initialization):
Has_Fully_Default_Initializing_DIC_Pragma is now used to determine
whether a type has full default initialization due to pragma
Default_Initial_Condition.
(Has_Fully_Default_Initializing_DIC_Pragma): New routine.
(Is_Verifiable_DIC_Pragma): Moved to Exp_Util.
* sem_util.ads (Has_Fully_Default_Initializing_DIC_Pragma): New
routine.
(Is_Verifiable_DIC_Pragma): Moved to Exp_Util.
* sem_warn.adb (Is_OK_Fully_Initialized):
Has_Fully_Default_Initializing_DIC_Pragma is now used to determine
whether a type has full default initialization due to pragma
Default_Initial_Condition.
2017-12-15 Hristian Kirtchev <kirtchev@adacore.com>
* sem_prag.adb (Match_Constituent): Do not quietly accept constants as
suitable constituents.
* exp_util.adb: Minor reformatting.
2017-12-15 Ed Schonberg <schonberg@adacore.com>
* exp_aggr.adb (In_Place_Assign_OK): Extend the predicate to recognize
an array aggregate in an allocator, when the designated type is
unconstrained and the upper bound of the aggregate belongs to the base
type of the index.
2017-12-15 Bob Duff <duff@adacore.com>
* exp_ch6.adb (Expand_N_Extended_Return_Statement,
Expand_Simple_Function_Return): Assert that the b-i-p-ness of the
caller and callee match. Otherwise, we would need some substantial
changes to allow b-i-p calls non-b-i-p, and vice versa.
gcc/testsuite/
2017-12-15 Hristian Kirtchev <kirtchev@adacore.com>
* gnat.dg/dflt_init_cond.adb, gnat.dg/dflt_init_cond_pkg.ads: New
testcase.
From-SVN: r255685
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From-SVN: r255684
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generic package body.
gcc/ada/
2017-12-15 Ed Schonberg <schonberg@adacore.com>
* exp_unst.adb (Unnest_Subprograms): Nothing to do if the main unit is
a generic package body. Unnesting is only an issue when generating
code, and if the main unit is generic then nested instance bodies have
not been created and analyzed, and unnesting will crash in the absence
of those bodies,
2017-12-15 Hristian Kirtchev <kirtchev@adacore.com>
* inline.adb (Add_Inlined_Body): Do not add a function which is
completed by an expression function defined in the same context as the
initial declaration because the completing body is not in a package
body.
(Is_Non_Loading_Expression_Function): New routine.
2017-12-15 Hristian Kirtchev <kirtchev@adacore.com>
* debug.adb: Move the functionality of -gnatdL to -gnatd_i. Restore
the behavior of -gnatdL from before revision 255412.
* sem_elab.adb: Update the section of compiler switches.
(Build_Call_Marker): Do not create a marker for a call which originates
from an expanded spec or body of an instantiated gener, does not invoke
a generic formal subprogram, the target is external to the instance,
and -gnatdL is in effect.
(In_External_Context): New routine.
(Process_Conditional_ABE_Activation_Impl): Update the uses of -gnatdL
and associated flag.
(Process_Conditional_ABE_Call): Update the uses of -gnatdL and
associated flag.
* switch-c.adb (Scan_Front_End_Switches): Switch -gnatJ now sets switch
-gnatd_i.
* exp_unst.adb: Minor typo fixes and edits.
2017-12-15 Ed Schonberg <schonberg@adacore.com>
* sem_ch6.adb (Possible_Freeze): Do not set Delayed_Freeze on an
subprogram instantiation, now that the enclosing wrapper package
carries an explicit freeze node. THis prevents freeze nodes for the
subprogram for appearing in the wrong scope. This is relevant when the
generic subprogram has a private or incomplete formal type and the
instance appears within a package that declares the actual type for the
instantiation, and that type has itself a delayed freeze.
2017-12-15 Patrick Bernardi <bernardi@adacore.com>
* doc/gnat_ugn/gnat_and_program_execution.rst: Removed references to
the environment variable GNAT_STACK_LIMIT from the Stack Overflow
Checking section as it is no longer used by any of our supported
targets.
gcc/testsuite/
2017-12-15 Hristian Kirtchev <kirtchev@adacore.com>
* gnat.dg/expr_func_main.adb, gnat.dg/expr_func_pkg.ads,
gnat.dg/expr_func_pkg.adb: New testcase.
2017-12-15 Hristian Kirtchev <kirtchev@adacore.com>
* gnat.dg/abe_pkg.adb, gnat.dg/abe_pkg.ads: New testcase.
2017-12-15 Ed Schonberg <schonberg@adacore.com>
* gnat.dg/subp_inst.adb, gnat.dg/subp_inst_pkg.adb,
gnat.dg/subp_inst_pkg.ads: New testcase.
From-SVN: r255683
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2017-12-15 Bob Duff <duff@adacore.com>
* exp_ch6.adb (Expand_N_Extended_Return_Statement): If the
Init_Assignment is rewritten, we need to set Assignment_OK on the new
node. Otherwise, we will get spurious errors when initializing via
assignment statement.
2017-12-15 Arnaud Charlet <charlet@adacore.com>
* exp_unst.adb (Visit_Node): Refine handling of 'Access to ignore non
relevant nodes.
(Has_Non_Null_Statements): Moved to sem_util for later reuse.
2017-12-15 Eric Botcazou <ebotcazou@adacore.com>
* exp_attr.adb (Is_Inline_Floating_Point_Attribute): Fix comment.
* libgnat/s-fatgen.adb (Model): Use Machine attribute.
(Truncation): Likewise.
2017-12-15 Bob Duff <duff@adacore.com>
* exp_ch7.adb (Expand_Cleanup_Actions): Make sure the block and handled
statement sequence generated for certain extended return statements
have a Sloc that is not No_Location. Otherwise, the back end doesn't
set any location and ends up reading uninitialized variables.
From-SVN: r255680
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2017-12-15 Bob Duff <duff@adacore.com>
* types.ads, exp_ch6.adb, libgnat/s-regexp.ads, opt.ads: Partly revert
r255414, committed by mistake.
From-SVN: r255679
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gcc/
* config/i386/i386-builtin.def (__builtin_ia32_vaesenclast_v16qi,
__builtin_ia32_vaesenclast_v32qi, __builtin_ia32_vaesenclast_v64qi): New.
* config/i386/sse.md (vaesenclast_<mode>): New pattern.
* config/i386/vaesintrin.h (_mm256_aesenclast_epi128,
_mm512_aesenclast_epi128, _mm_aesenclast_epi128): New intrinsics.
gcc/testsuite/
* gcc.target/i386/avx512f-aesenclast-2.c: New test.
* gcc.target/i386/avx512vl-aesenclast-2.c: Ditto.
* gcc.target/i386/avx512fvl-vaes-1.c: Handle new intrinsics.
From-SVN: r255676
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gcc/
* config/i386/i386-builtin.def (__builtin_ia32_vaesenc_v16qi,
__builtin_ia32_vaesenc_v32qi, __builtin_ia32_vaesenc_v64qi): New.
* config/i386/sse.md (vaesenc_<mode>): New pattern.
* config/i386/vaesintrin.h (_mm256_aesenc_epi128, _mm512_aesenc_epi128,
_mm_aesenc_epi128): New intrinsics.
gcc/testsuite/
* gcc.target/i386/avx512f-aesenc-2.c: New test.
* gcc.target/i386/avx512vl-aesenc-2.c: Ditto.
* gcc.target/i386/avx512fvl-vaes-1.c: Handle new intrinsics.
From-SVN: r255675
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gcc/
* config/i386/i386-builtin.def (__builtin_ia32_vaesdeclast_v16qi,
__builtin_ia32_vaesdeclast_v32qi, __builtin_ia32_vaesdeclast_v64qi): New.
* config/i386/sse.md (vaesdeclast_<mode>): New pattern.
* config/i386/vaesintrin.h (_mm256_aesdeclast_epi128,
_mm512_aesdeclast_epi128, _mm_aesdeclast_epi128): New intrinsics.
gcc/testsuite/
* gcc.target/i386/avx512f-aesdeclast-2.c: New test.
* gcc.target/i386/avx512vl-aesdeclast-2.c
* gcc.target/i386/avx512fvl-vaes-1.c: Handle new intrinsics.
From-SVN: r255674
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From-SVN: r255673
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From-SVN: r255670
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replacement costs for constant strides from those for unknown strides.
2017-12-14 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
* gimple-ssa-strength-reduction.c (analyze_increments):
Distinguish replacement costs for constant strides from those for
unknown strides.
From-SVN: r255664
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From-SVN: r255663
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gcc:
2017-12-14 Bernd Edlinger <bernd.edlinger@hotmail.de>
* doc/invoke.texi: Document -Wcast-function-type.
* recog.h (stored_funcptr): Change signature.
* tree-dump.c (dump_node): Avoid warning.
* typed-splay-tree.h (typed_splay_tree): Avoid warning.
libcpp:
2017-12-14 Bernd Edlinger <bernd.edlinger@hotmail.de>
* internal.h (maybe_print_line): Change signature.
c-family:
2017-12-14 Bernd Edlinger <bernd.edlinger@hotmail.de>
* c.opt (Wcast-function-type): New warning option.
* c-lex.c (get_fileinfo): Avoid warning.
* c-ppoutput.c (scan_translation_unit_directives_only): Remove cast.
c:
2017-12-14 Bernd Edlinger <bernd.edlinger@hotmail.de>
* c-typeck.c (c_safe_arg_type_equiv_p,
c_safe_function_type_cast_p): New function.
(build_c_cast): Implement -Wcast-function-type.
cp:
2017-12-14 Bernd Edlinger <bernd.edlinger@hotmail.de>
* decl2.c (start_static_storage_duration_function): Avoid warning.
* typeck.c (cxx_safe_arg_type_equiv_p,
cxx_safe_function_type_cast_p): New function.
(build_reinterpret_cast_1): Implement -Wcast-function-type.
testsuite:
2017-12-14 Bernd Edlinger <bernd.edlinger@hotmail.de>
* c-c++-common/Wcast-function-type.c: New test.
* g++.dg/Wcast-function-type.C: New test.
From-SVN: r255661
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missing -Wformat-overflow with %s and non-member array arguments
-Wformat-overflow uses the routine "get_range_strlen" to decide the
maximum string length, however, currently "get_range_strlen" misses
the handling of non-member arrays.
Adding the handling of non-member array resolves the issue.
Adding test case pr79538.c into gcc.dg.
During gcc bootstrap, 2 source files (c-family/c-cppbuiltin.c,
fortran/class.c) were detected new warnings by -Wformat-overflow
due to the new handling of non-member array in "get_range_strlen".
in order to avoid these new warnings and continue with bootstrap,
updating these 2 files to avoid the warnings.
in c-family/c-cppbuiltin.c, the warning is following:
../../latest_gcc_2/gcc/c-family/c-cppbuiltin.c:1627:15: note:
‘sprintf’ output 2 or more bytes (assuming 257) into a destination
of size 256
sprintf (buf1, "%s=%s", macro, buf2);
~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
in the above, buf1 and buf2 are declared as:
char buf1[256], buf2[256];
i.e, buf1 and buf2 have same size. adjusting the size of buf1 and
buf2 resolves the warning.
fortran/class.c has the similar issue as above. Instead of adjusting
size of the buffers, replacing sprintf with xasprintf is a better
solution for these cases.
From-SVN: r255654
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From-SVN: r255653
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From-SVN: r255650
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gcc/ChangeLog:
PR tree-optimization/83312
* domwalk.h (dom_walker::dom_walker): Fix typo in comment.
* tree-cfg.c (find_taken_edge): Update to handle NULL_TREE for
"val" param, and to cope with arbitrary basic blocks.
(find_taken_edge_cond_expr): Add "cond_stmt" param and use it to
handle NULL_TREE for "val", dropping "bb" param.
(find_taken_edge_switch_expr): Make "switch_stmt" param const and
drop "bb" param. Handle NULL_TREE for "val".
(find_case_label_for_value): Make "switch_stmt" param const.
* tree-vrp.c (class check_array_bounds_dom_walker): New subclass
of dom_walker.
(vrp_prop::check_all_array_refs): Reimplement as...
(check_array_bounds_dom_walker::before_dom_children): ...this new
vfunc. Replace linear search through BB block list, excluding
those with non-executable in-edges via dominator walk.
gcc/testsuite/ChangeLog:
PR tree-optimization/83312
* gcc.dg/pr83312.c: New test case.
From-SVN: r255649
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if the call is recursive.
* gcc-interface/trans.c (Call_to_gnu): Set DECL_DISREGARD_INLINE_LIMITS
to 0 on the callee if the call is recursive.
From-SVN: r255648
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type if it is not already set.
* gcc-interface/decl.c (gnat_to_gnu_field): Do not set the alignment
of the enclosing record type if it is not already set.
From-SVN: r255645
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This patch adds an -mverbose-cost-dump option, similar to the one in aarch64.
It makes the RTX cost dump print the RTX we're costing in the backend, as well as its cost.
This can be distracting in other cost-related RTL dumps like combine's.
So now we don't dump the backend information by default, but provide the power-user option -mverbose-cost-dump
to enable the old verbose dumping.
This option is for GCC developers debugging the compiler only, so no documentation are added.
It's also trivially simple in functionality so no test is added either.
Bootstrapped and tested on arm-none-linux-gnueabihf.
Committed to trunk.
* config/arm/arm.opt (mverbose-cost-dump): New option.
* config/arm/arm.c (arm_rtx_costs): Use it.
From-SVN: r255644
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PR lto/81406
* gcc.dg/lto/pr81406_0.c: New test.
From-SVN: r255643
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2017-12-14 Richard Biener <rguenther@suse.de>
PR tree-optimization/66974
* gcc.dg/Warray-bounds-24.c: New testcase.
From-SVN: r255642
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2017-12-14 Richard Biener <rguenther@suse.de>
PR tree-optimization/65258
* gcc.dg/Warray-bounds-23.c: New testcase.
From-SVN: r255641
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PR bootstrap/83396
* reload1.c (emit_input_reload_insns): Skip debug markers.
From-SVN: r255640
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We skip debug insns and notes after a call that needs a nop_endbr, but
since a debug insn could be the last in a block, it may affect the loc
in the emitted nop_endbr insn. Although this has no effect on
codegen, it does mess with debug info a bit, and it causes
-fcompare-debug to fail for e.g. libsanitizer's
tsan/tsan_platform_linux.cc on x86_64.
So, pick the location of the call insn for the nop_endbr insn, to
avoid the line number differences in dumps, including -fcompare-debug
ones.
Also, we don't need to determine what the insert point would be unless
we're actually emitting the nop_endbr insn after the call, so
rearrange the code to avoid wasting cycles.
Finally, it seems like testing for barriers is a mistake. We probably
never actually pass that test, for the barriers would hit BB_END
first. If we did, we'd end up emitting the nop_endbr outside any BB,
even after the end of the function! That would be Very Bad (TM).
Now, since the test as it is can't hurt, I figured I wouldn't change
the logic right now, just add a comment so that someone involved in
endbr stuff can have a second look and hopefully fix it.
for gcc/ChangeLog
* config/i386/i386.c (rest_of_insert_endbranch): Use call loc
for its nop_endbr.
From-SVN: r255639
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The patch that added _nondebug to next_ and prev_nonnote_insn_bb
failed to find and adjust uses within config. Fixed.
for gcc/ChangeLog
PR bootstrap/83396
* config/arc/arc.c (hwloop_optimize): Skip debug insns.
* config/sh/sh-protos.h (sh_find_set_of_reg): Adjust.
* config/sh/sh.c: Skip debug insns besides notes.
* config/sh/sh.md: Likewise.
* config/sh/sh_treg_combine.cc: Likewise.
* config/sh/sync.md: Likewise.
From-SVN: r255638
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2017-12-14 Tom de Vries <tom@codesourcery.com>
* lib/target-supports.exp (check_effective_target_weak_undefined): New
proc.
* gcc.dg/visibility-22.c: Require effective target weak_undefined.
* doc/sourcebuild.texi (Effective-Target Keywords, Other attributes):
Add item for weak_undefined.
From-SVN: r255637
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2017-12-14 Richard Biener <rguenther@suse.de>
PR tree-optimization/67842
* sese.h (bb_in_region): Remove #if 0'ed code.
From-SVN: r255636
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regression with r255267 (reproducer attached))
2017-12-14 Richard Biener <rguenther@suse.de>
PR tree-optimization/83326
* tree-ssa-loop-ivcanon.c (try_unroll_loop_completely): Add
may_be_zero parameter and handle it by not marking the first
peeled copy as not exiting the loop.
(try_peel_loop): Likewise.
(canonicalize_loop_induction_variables): Use number_of_iterations_exit
to handle the case of constant or zero iterations and perform
loop header copying on-the-fly.
* gcc.dg/tree-ssa/pr81388-2.c: Adjust.
From-SVN: r255635
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* gcc-interface/gigi.h (pad_type_has_rm_size): Declare.
* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Variable>: Do not build
a padding type for the alignment before validating the size.
Flip conditional construct and add a comment.
* gcc-interface/trans.c (Attribute_to_gnu) <Attr_Size>: Make sure to
apply the exception for padded objects to the type of the object.
* gcc-interface/utils.c (hash_pad_type): New static function.
(lookup_and_insert_pad_type): Rename into...
(canonicalize_pad_type): ...this. Call hash_pad_type, do only one
lookup with insertion and always return the canonical type.
(maybe_pad_type): Adjust to above changes. Set debug type later.
(pad_type_has_rm_size): New predicate.
(set_reverse_storage_order_on_pad_type): Adjust to above changes.
From-SVN: r255631
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vector)
2017-12-14 Richard Biener <rguenther@suse.de>
PR c/83415
c/
* c-fold.c (c_fully_fold_internal): Treat VIEW_CONVERT_EXPR
like REALPART_EXPR for the behavior of whether its operand
is an lvalue.
* gcc.dg/pr83415.c: New testcase.
From-SVN: r255629
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extract_range_for_var_from_comparison_expr, at vr-values.c:448)
2017-12-14 Richard Biener <rguenther@suse.de>
PR tree-optimization/83418
* vr-values.c (vr_values::extract_range_for_var_from_comparison_expr):
Instead of asserting we don't get unfolded comparisons deal with
them.
* gcc.dg/torture/pr83418.c: New testcase.
From-SVN: r255628
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PR bootstrap/83396
* var-tracking.c (vt_initialize): Ignore non-DEBUG_INSNs outside of
basic blocks. Assert debug bind insns don't appear outside of bbs,
don't reset them. Assert insns without BLOCK_FOR_INSN are outside of
bb. Simplify.
* gcc.dg/pr83396.c: New test.
From-SVN: r255627
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gimple-ssa-sprintf.c:1900)
PR tree-optimization/83198
* gimple-ssa-sprintf.c (format_floating): Set type solely based on
dir.modifier, regardless of TREE_TYPE (arg). Assume non-REAL_CST
value if arg is a REAL_CST with incompatible type.
* gcc.dg/pr83198.c: New test.
* gcc.dg/tree-ssa/pr83198.c: New test.
From-SVN: r255626
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This patch is a follow up to the existing discussions on
https://gcc.gnu.org/ml/gcc-patches/2017-07/msg01904.html
Bin had earlier submitted this patch to fix the ICE that
occurs because of the missing LTGT in aarch64-simd.md.
That discussion opened up a new bug report PR81647 for
an inconsistent behavior.
As discussed earlier on the gcc-patches discussion and on
the bug report, PR81647 was occurring because of how UNEQ
was handled in aarch64-simd.md rather than LTGT.
Since __builtin_islessgreater is guaranteed to not give an
FP exception but LTGT might, __builtin_islessgreater gets
converted to ~UNEQ very early on in fold_builtin_unordered_cmp.
Thus I will post a separate patch for correcting how UNEQ and
other unordered comparisons are handled in aarch64-simd.md.
This patch is only adding the missing LTGT to plug the ICE.
Testing done: Checked for regressions on bootstrapped
aarch64-none-linux-gnu and added a new compile time test case
that gives out LTGT to make sure it doesn't ICE
*** gcc/ChangeLog ***
2017-12-14 Sudakshina Das <sudi.das@arm.com>
Bin Cheng <bin.cheng@arm.com>
PR target/81228
* config/aarch64/aarch64.c (aarch64_select_cc_mode): Move LTGT
to CCFPEmode.
* config/aarch64/aarch64-simd.md (vec_cmp<mode><v_int_equiv>): Add
LTGT.
*** gcc/testsuite/ChangeLog ***
2017-12-14 Sudakshina Das <sudi.das@arm.com>
PR target/81228
* gcc.dg/pr81228.c: New.
Co-Authored-By: Bin Cheng <bin.cheng@arm.com>
From-SVN: r255625
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The Cortex-A55 and Cortex-A75 processors support the fp16 extension.
We already specify them as such in the arm port.
This patch makes aarch64 consistent on this front.
Bootstrapped and tested on aarch64-none-linux-gnu.
Manually checked that compiling with aarch64-none-linux-gnu-gcc -mcpu=cortex-a55 -dM -E - < /dev/null
shows __ARM_FEATURE_FP16_VECTOR_ARITHMETIC and __ARM_FEATURE_FP16_SCALAR_ARITHMETIC being specified
as expected whereas they were not before this patch.
* config/aarch64/aarch64-cores.def (cortex-a55, cortex-a75,
cortex-a75.cortex-a55): Specify AARCH64_FL_F16 in the arch features.
From-SVN: r255624
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convert_nontype_argument (pt.c:6515))
PR c++/79650
* pt.c (convert_nontype_argument): Diagnose
reduced_constant_expression_p expressions that aren't INTEGER_CST.
* g++.dg/template/pr79650.C: New test.
From-SVN: r255623
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From-SVN: r255620
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This patch adds a new "poly_int" class to represent polynomial integers
of the form:
C0 + C1*X1 + C2*X2 ... + Cn*Xn
It also adds poly_int-based typedefs for offsets and sizes of various
precisions. In these typedefs, the Ci coefficients are compile-time
constants and the Xi indeterminates are run-time invariants. The number
of coefficients is controlled by the target and is initially 1 for all
ports.
Most routines can handle general coefficient counts, but for now a few
are specific to one or two coefficients. Support for other coefficient
counts can be added when needed.
The patch also adds a new macro, IN_TARGET_CODE, that can be
set to indicate that a TU contains target-specific rather than
target-independent code. When this macro is set and the number of
coefficients is 1, the poly-int.h classes define a conversion operator
to a constant. This allows most existing target code to work without
modification. The main exceptions are:
- values passed through ..., which need an explicit conversion to a
constant
- ?: expression in which one arm ends up being a polynomial and the
other remains a constant. In these cases it would be valid to convert
the constant to a polynomial and the polynomial to a constant, so a
cast is needed to break the ambiguity.
The patch also adds a new target hook to return the estimated
value of a polynomial for costing purposes.
The patch also adds operator<< on wide_ints (it was already defined
for offset_int and widest_int). I think this was originally excluded
because >> is ambiguous for wide_int, but << is useful for converting
bytes to bits, etc., so is worth defining on its own. The patch also
adds operator% and operator/ for offset_int and widest_int, since those
types are always signed. These changes allow the poly_int interface to
be more predictable.
I'd originally tried adding the tests as selftests, but that ended up
bloating cc1 by at least a third. It also took a while to build them
at -O2. The patch therefore uses plugin tests instead, where we can
force the tests to be built at -O0. They still run in negligible time
when built that way.
2017-12-14 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* poly-int.h: New file.
* poly-int-types.h: Likewise.
* coretypes.h: Include them.
(POLY_INT_CONVERSION): Define.
* target.def (estimated_poly_value): New hook.
* doc/tm.texi.in (TARGET_ESTIMATED_POLY_VALUE): New hook.
* doc/tm.texi: Regenerate.
* doc/poly-int.texi: New file.
* doc/gccint.texi: Include it.
* doc/rtl.texi: Describe restrictions on subreg modes.
* Makefile.in (TEXI_GCCINT_FILES): Add poly-int.texi.
* genmodes.c (NUM_POLY_INT_COEFFS): Provide a default definition.
(emit_insn_modes_h): Emit a definition of NUM_POLY_INT_COEFFS.
* targhooks.h (default_estimated_poly_value): Declare.
* targhooks.c (default_estimated_poly_value): New function.
* target.h (estimated_poly_value): Likewise.
* wide-int.h (WI_UNARY_RESULT): Use wi::binary_traits.
(wi::unary_traits): Delete.
(wi::binary_traits::signed_shift_result_type): Define for
offset_int << HOST_WIDE_INT, etc.
(generic_wide_int::operator <<=): Define for all types and use
wi::lshift instead of <<.
(wi::hwi_with_prec): Add a default constructor.
(wi::ints_for): New class.
(operator <<): Define for all wide-int types.
(operator /): New function.
(operator %): Likewise.
* selftest.h (ASSERT_KNOWN_EQ, ASSERT_KNOWN_EQ_AT, ASSERT_MAYBE_NE)
(ASSERT_MAYBE_NE_AT): New macros.
gcc/testsuite/
* gcc.dg/plugin/poly-int-tests.h,
gcc.dg/plugin/poly-int-test-1.c,
gcc.dg/plugin/poly-int-01_plugin.c,
gcc.dg/plugin/poly-int-02_plugin.c,
gcc.dg/plugin/poly-int-03_plugin.c,
gcc.dg/plugin/poly-int-04_plugin.c,
gcc.dg/plugin/poly-int-05_plugin.c,
gcc.dg/plugin/poly-int-06_plugin.c,
gcc.dg/plugin/poly-int-07_plugin.c: New tests.
* gcc.dg/plugin/plugin.exp: Run them.
Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>
From-SVN: r255617
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