Handle the option, make the saved filenames and paths easier to handle.
Don't print '[Leaving...]' for files we never created and don't exist - or unless
verbose is true.

2018-12-23  Iain Sandoe  <iain@sandoe.co.uk>

	* collect2.c (main): Parse the output file early so we can make nicer
	temp names.  Respond to “-save-temps” in the GCC OPTIONS.
	(maybe_unlink): Don’t print “[Leaving…”] for files we never created
	and don’t exist.

From-SVN: r267370

To ensure compatibility with the flags consumed by ld, some of the flags
needed by collect2 come from the command line and some are passed
in the COLLECT_GCC_OPTIONS.

Here we combine initial parses of both and then set the LTO mode accordingly.

2018-12-23  Iain Sandoe  <iain@sandoe.co.uk>

	* collect2.c (main): Combine flags from both the command line and
	COLLECT_GCC_OPTIONS to determine the set in force

From-SVN: r267369

2018-12-22  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/88328
	* io.c (resolve_tag_format): Add error for zero-sized array.
	(gfc_resolve_dt): Manipulate gfc_current_locus to get sensible error
	message locus.

2018-12-22  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/88328
	* gfortran.dg/pr88328.f90: New test.

From-SVN: r267367

From-SVN: r267366

libiberty/
	* cplus-dem.c: Remove cplus_mangle_opname, cplus_demangle_opname,
	internal_cplus_demangle, and all subroutines.
	(libiberty_demanglers): Remove entries for ancient GNU (pre-3.0),
	Lucid, ARM, HP, and EDG demangling styles.
	(cplus_demangle): Remove 'work' variable.  Don't call
	internal_cplus_demangle.
include/
	* demangle.h: Remove support for ancient GNU (pre-3.0), Lucid,
	ARM, HP, and EDG demangling styles.

From-SVN: r267363

From-SVN: r267361

	* tree.c: (obj_type_ref_class): Move to...
	* ipa-devirt.c (obj_type_ref_class): Move to here; lookup main
	odr type.
	(get_odr_type): Compensate for type simplification.

	* g++.dg/ipa/devirt-30.C: Add dg-do.
	* g++.dg/lto/devirt-1_0.C: New testcase.
	* g++.dg/lto/devirt-2_0.C: New testcase.
	* g++.dg/lto/devirt-3_0.C: New testcase.
	* g++.dg/lto/devirt-4_0.C: New testcase.
	* g++.dg/lto/devirt-5_0.C: New testcase.
	* g++.dg/lto/devirt-6_0.C: New testcase.
	* g++.dg/lto/devirt-13_0.C: New testcase.
	* g++.dg/lto/devirt-14_0.C: New testcase.
	* g++.dg/lto/devirt-19_0.C: New testcase.
	* g++.dg/lto/devirt-22_0.C: New testcase.
	* g++.dg/lto/devirt-23_0.C: New testcase.
	* g++.dg/lto/devirt-30_0.C: New testcase.
	* g++.dg/lto/devirt-34_0.C: New testcase.

From-SVN: r267359

During 8.x, the rs6000 target-specific mangling was reorganised which uncovered
a long-standing bug in Darwin’s mangling for ‘IBM’ long double.  Now the symbols
are correctly mangled, and we end up with a bunch of test link fails.

This patch adds the necessary subset of the Linux long double exports to Darwin’s
export table.

2018-12-22  Iain Sandoe  <iain@sandoe.co.uk>

	* /config/os/bsd/darwin/ppc-extra.ver: Append long double symbols.

From-SVN: r267358

2018-12-22  Steven G . Kargl  <kargl@gcc.gnu.org>

	PR fortran/85798
	* decl.c (gfc_match_data): If a component of a derived type entity
	appears in data statement, check that does not have the allocatable
	attribute.
 
2018-12-22  Steven G . Kargl  <kargl@gcc.gnu.org>

	PR fortran/85798
	* gfortran.dg/pr85798.f90: New test.

From-SVN: r267356

2018-12-21  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/88169
	* module.c (mio_namelist): Remove an error condition/message that
	is contrary to the Fortran standard.

2018-12-21  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/88169
	* gfortran.dg/pr88169_1.f90: new test.
	* gfortran.dg/pr88169_2.f90: Ditto.
	* gfortran.dg/pr88169_3.f90: Ditto.

From-SVN: r267351

2018-12-22  Thomas Koenig  <tkoenig@gcc.gnu.org>

    Backport from trunk
    PR fortran/85544
    * gfortran.dg/power_7.f90: New test.

From-SVN: r267348

2018-12-22  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/85544
	* frontend-passes.c (optimize_power): Remove.
	(optimize_op): Remove call to optimize_power.
	* trans-expr.c (gfc_conv_power_op): Handle cases of 1**integer,
	(2|4|8|16) ** integer and (-1) ** integer.

2018-12-22  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/85544
	* gfortran.dg/power_7.f90: New test.

From-SVN: r267347

From-SVN: r267346

2018-12-21  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/69121
	* ieee/ieee_arithmetic.F90: Provide missing interfaces for IEEE_SCALB.

2018-12-21  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/69121
	* gfortran.dg/ieee/ieee_9.f90: New test.

From-SVN: r267343

re PR c++/86524 (std::less with pointer arguments not usable in static_assert in constexpr function)

	PR c++/86524
	PR c++/88446
	* cp-tree.h (cp_fold_maybe_rvalue, cp_fold_rvalue): Declare.
	(fold_non_dependent_expr): Add manifestly_const_eval argument.
	* constexpr.c (cxx_eval_builtin_function_call): Evaluate
	__builtin_constant_p if ctx->manifestly_const_eval even in constexpr
	functions.  Don't reuse dummy{1,2} vars between different arguments.
	Use cp_fold_rvalue instead of cp_fully_fold.  Fix comment typo.
	(fold_non_dependent_expr): Add manifestly_const_eval argument, pass
	it through to cxx_eval_outermost_constant_expr and
	maybe_constant_value.
	* cp-gimplify.c (cp_fold_maybe_rvalue, cp_fold_rvalue): No longer
	static.
	* semantics.c (finish_static_assert): Call fold_non_dependent_expr
	with true as manifestly_const_eval.

	* g++.dg/cpp1y/constexpr-86524.C: New test.
	* g++.dg/cpp2a/is-constant-evaluated4.C: New test.
	* g++.dg/cpp2a/is-constant-evaluated5.C: New test.
	* g++.dg/cpp2a/is-constant-evaluated6.C: New test.

From-SVN: r267341

From-SVN: r267340

	PR middle-end/85594
	PR middle-end/88553
	* omp-expand.c (extract_omp_for_update_vars): Regimplify the condition
	if needed.
	(expand_omp_for_generic): Don't clobber t temporary for ordered loops.

	* gcc.dg/gomp/pr85594.c: New test.
	* gcc.dg/gomp/pr88553.c: New test.

From-SVN: r267339

	PR ipa/88561
	* ipa-polymorphic-call.c
	(ipa_polymorphic_call_context::ipa_polymorphic_call_context): Handle
	arguments of thunks correctly.
	(ipa_polymorphic_call_context::get_dynamic_context): Be ready for
	NULL instance pinter.
	* lto-cgraph.c (lto_output_node): Always stream thunk info.

From-SVN: r267338

2018-12-21  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/87881
	* expr.c (find_inquiry_ref): Loop through the inquiry refs in
	case there are two of them.
	(simplify_ref_chain): Return true after a successful call to
	find_inquiry_ref.

2018-12-21  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/87881
	* gfortran.dg/inquiry_part_ref_4.f90: New test.

From-SVN: r267337

gcc/ChangeLog:

2018-12-21  Andreas Krebbel  <krebbel@linux.ibm.com>

	* config/s390/vector.md ("floatv2div2df2", "floatunsv2div2df2")
	("fix_truncv2dfv2di2", "fixuns_truncv2dfv2di2"): New pattern
	definitions.

gcc/testsuite/ChangeLog:

2018-12-21  Andreas Krebbel  <krebbel@linux.ibm.com>

	* gcc.target/s390/vector/fp-signedint-convert-1.c: New test.
	* gcc.target/s390/vector/fp-unsignedint-convert-1.c: New test.

From-SVN: r267336

        * gcc.target/i386/pr88418.c (dg-options): Add -mno-avx.

From-SVN: r267334

2018-12-21  Thomas Preud'homme  <thomas.preudhomme@linaro.org>

    * MAINTAINERS (Write After Approval): Update my maintainer address.

From-SVN: r267330

From-SVN: r267329

	PR rtl-optimization/87727
	* combine.c (cant_combine_insn_p): On a LEAF_REGISTERS target, combine
	again moves from leaf hard registers.

	* final.c (final_scan_insn_1) <NOTE_INSN_INLINE_ENTRY>: Minor tweak.

From-SVN: r267328

	PR target/88522
	* config/i386/sse.md (*avx512pf_gatherpf<mode>sf_mask,
	*avx512pf_gatherpf<mode>df_mask, *avx512pf_scatterpf<mode>sf_mask,
	*avx512pf_scatterpf<mode>df_mask): Use %X5 instead of %5 for
	-masm=intel.
	(gatherq_mode): Remove mode iterator.
	(*avx512f_gathersi<mode>, *avx512f_gathersi<mode>_2): Use X instead
	of <xtg_mode>.
	(*avx512f_gatherdi<mode>): Use X instead of <gatherq_mode>.
	(*avx512f_gatherdi<mode>_2, *avx512f_scattersi<mode>,
	*avx512f_scatterdi<mode>): Use %X5 for -masm=intel.

From-SVN: r267327

re PR rtl-optimization/88563 (wrong code with -O2 -fno-code-hoisting -fno-tree-ccp -fno-tree-dominator-opts -fno-tree-forwprop -fno-tree-fre -fno-tree-pre -fno-tree-vrp)

	PR rtl-optimization/88563
	* expr.c (expand_expr_real_2) <case WIDEN_MULT_EXPR>: Swap innermode
	and mode arguments to convert_modes.  Likewise swap mode and word_mode
	arguments.  Handle both arguments with VOIDmode before convert_modes
	of one of them.  Formatting fixes.

	* gcc.dg/pr88563.c: New test.

From-SVN: r267326

	PR target/88556
	* internal-fn.def (COSH): New.
	(SINH): Ditto.
	(TANH): Ditto.
	* optabs.def (cosh_optab): New.
	(sinh_optab): Ditto.
	(tanh_optab): Ditto.
	* config/i386/i386-protos.h (ix86_emit_i387_sinh): New prototype.
	(ix86_emit_i387_cosh): Ditto.
	(ix86_emit_i387_tanh): Ditto.
	* config/i386/i386.c (ix86_emit_i387_sinh): New function.
	(ix86_emit_i387_cosh): Ditto.
	(ix86_emit_i387_tanh): Ditto.
	* config/i386/i386.md (sinhxf2): New expander.
	(sinh<mode>2):	Ditto.
	(coshxf2): Ditto.
	(cosh<mode>2): Ditto.
	(tanhxf2): Ditto.
	(tanh<mode>2): Ditto.

From-SVN: r267325

	PR c++/87125
	* g++.dg/cpp0x/pr87125.C: New test.

From-SVN: r267324

On some version of dejagnu, options in RUNTESTFLAGS are appended to the
command-line and thus any -mfloat-abi=softfp or -mfloat-abi=hard in
there overwrite the -mfloat-abi=soft in the dg-options for
size-optimization-ieee-* tests. Test is still run though because
arm_soft_ok returns true if -mfloat-abi=soft is accepted, even if the
file is not compiled for softfloat due to a later -mfloat-abi on the
command line.

This patch adds a dg-skip-if to those tests to ensure they are not run
in softfp or hard mode.

2018-12-21  Thomas Preud'homme  <thomas.preudhomme@linaro.org>

    gcc/testsuite/
    * gcc.target/arm/size-optimization-ieee-1.c: Skip if passing
    -mfloat-abi=softfp or -mfloat-abi=hard.
    * gcc.target/arm/size-optimization-ieee-2.c: Likewise.
    * gcc.target/arm/size-optimization-ieee-3.c: Likewise.

From-SVN: r267323

	PR target/88547
	* config/i386/i386.c (ix86_expand_int_sse_cmp): Optimize
	x > y ? 0 : -1 into min (x, y) == x ? -1 : 0.

	* gcc.target/i386/pr88547-1.c: Expect only 2 knotb and 2 knotw
	insns instead of 4, check for vpminud, vpminuq and no vpsubd or
	vpsubq.
	* gcc.target/i386/sse2-pr88547-1.c: New test.
	* gcc.target/i386/sse2-pr88547-2.c: New test.
	* gcc.target/i386/sse4_1-pr88547-1.c: New test.
	* gcc.target/i386/sse4_1-pr88547-2.c: New test.
	* gcc.target/i386/avx2-pr88547-1.c: New test.
	* gcc.target/i386/avx2-pr88547-2.c: New test.
	* gcc.target/i386/avx512f-pr88547-2.c: New test.
	* gcc.target/i386/avx512vl-pr88547-1.c: New test.
	* gcc.target/i386/avx512vl-pr88547-2.c: New test.
	* gcc.target/i386/avx512vl-pr88547-3.c: New test.
	* gcc.target/i386/avx512f_cond_move.c (y): Change from unsigned int
	array to int array.

From-SVN: r267322

They are no different from their VAESENC{,LAST} counterparts in this
regard.

From-SVN: r267321

Introduce @name as a means to specify alternate multilib profiles as
arguments to --with-multilib-list.

So far this is only implemented for ARM.


for  gcc/ChangeLog

	* config.gcc (tmake_file): Add name to tmake_file for
        each @name in --with-multilib-list on arm-*-* targets.
	* doc/install.texi (with-multilib-list): Document it.

From-SVN: r267320

	* pt.c (convert_nontype_argument): If the expr is a PTRMEM_CST, also
	check if the type we're converting it to is TYPE_PTRMEM_P.

	* g++.dg/cpp0x/ptrmem-cst-arg1.C: Tweak dg-error.
	* g++.dg/cpp2a/nontype-class10.C: New test.
	* g++.dg/template/pr54858.C: Tweak dg-error.

From-SVN: r267319

tree-vect-data-refs.c (vect_enhance_data_refs_alignment): Use DR_TARGET_ALIGNMENT on dr_info rather than dr.

	* tree-vect-data-refs.c (vect_enhance_data_refs_alignment): Use
	DR_TARGET_ALIGNMENT on dr_info rather than dr.  Spelling fixes.

From-SVN: r267318

From-SVN: r267317

tree-vect-data-refs.c (vect_enhance_data_refs_alignment): Don't do versioning for data accesses with misaligned step.

2018-12-20  Joern Rennecke  <joern.rennecke@riscy-ip.com>

        * tree-vect-data-refs.c (vect_enhance_data_refs_alignment): Don't do
        versioning for data accesses with misaligned step.

From-SVN: r267314

When address of packed member of struct or union is taken, it may result
in an unaligned pointer value.  This patch adds -Waddress-of-packed-member
to check alignment at pointer assignment and warn unaligned address as
well as unaligned pointer:

$ cat x.i
struct pair_t
{
  char c;
  int i;
} __attribute__ ((packed));

extern struct pair_t p;
int *addr = &p.i;
$ gcc -O2 -S x.i
x.i:8:13: warning: taking address of packed member of ‘struct pair_t’ may result in an unaligned pointer value [-Waddress-of-packed-member]
8 | int *addr = &p.i;
  |             ^

$ cat c.i
struct B { int i; };
struct C { struct B b; } __attribute__ ((packed));

long* g8 (struct C *p) { return p; }
$ gcc -O2 -S c.i -Wno-incompatible-pointer-types
c.i: In function ‘g8’:
c.i:4:18: warning: converting a packed ‘struct C *’ pointer (alignment 1) to ‘long int *’ (alignment 8) may may result in an unaligned pointer value [-Waddress-of-packed-member]
4 | long* g8 (struct C *p) { return p; }
  |                  ^
c.i:2:8: note: defined here
2 | struct C { struct B b; } __attribute__ ((packed));
  |        ^
$

This warning is enabled by default.  Since read_encoded_value_with_base
in unwind-pe.h has

  union unaligned
    {
      void *ptr;
      unsigned u2 __attribute__ ((mode (HI)));
      unsigned u4 __attribute__ ((mode (SI)));
      unsigned u8 __attribute__ ((mode (DI)));
      signed s2 __attribute__ ((mode (HI)));
      signed s4 __attribute__ ((mode (SI)));
      signed s8 __attribute__ ((mode (DI)));
    } __attribute__((__packed__));
  _Unwind_Internal_Ptr result;

and GCC warns:

gcc/libgcc/unwind-pe.h:210:37: warning: taking address of packed member of 'union unaligned' may result in an unaligned pointer value [-Waddress-of-packed-member]
    result = (_Unwind_Internal_Ptr) u->ptr;
                                    ^
we need to add GCC pragma to ignore -Waddress-of-packed-member.

gcc/

	PR c/51628
	* doc/invoke.texi: Document -Wno-address-of-packed-member.

gcc/c-family/

	PR c/51628
	* c-common.h (warn_for_address_or_pointer_of_packed_member): New.
	* c-warn.c (check_alignment_of_packed_member): New function.
	(check_address_of_packed_member): Likewise.
	(check_and_warn_address_of_packed_member): Likewise.
	(warn_for_address_or_pointer_of_packed_member): Likewise.
	* c.opt: Add -Wno-address-of-packed-member.

gcc/c/

	PR c/51628
	* c-typeck.c (convert_for_assignment): Call
	warn_for_address_or_pointer_of_packed_member.

gcc/cp/

	PR c/51628
	* call.c (convert_for_arg_passing): Call
	warn_for_address_or_pointer_of_packed_member.
	* typeck.c (convert_for_assignment): Likewise.

gcc/testsuite/

	PR c/51628
	* c-c++-common/pr51628-1.c: New test.
	* c-c++-common/pr51628-2.c: Likewise.
	* c-c++-common/pr51628-3.c: Likewise.
	* c-c++-common/pr51628-4.c: Likewise.
	* c-c++-common/pr51628-5.c: Likewise.
	* c-c++-common/pr51628-6.c: Likewise.
	* c-c++-common/pr51628-7.c: Likewise.
	* c-c++-common/pr51628-8.c: Likewise.
	* c-c++-common/pr51628-9.c: Likewise.
	* c-c++-common/pr51628-10.c: Likewise.
	* c-c++-common/pr51628-11.c: Likewise.
	* c-c++-common/pr51628-12.c: Likewise.
	* c-c++-common/pr51628-13.c: Likewise.
	* c-c++-common/pr51628-14.c: Likewise.
	* c-c++-common/pr51628-15.c: Likewise.
	* c-c++-common/pr51628-26.c: Likewise.
	* c-c++-common/pr51628-27.c: Likewise.
	* c-c++-common/pr51628-28.c: Likewise.
	* c-c++-common/pr51628-29.c: Likewise.
	* c-c++-common/pr51628-30.c: Likewise.
	* c-c++-common/pr51628-31.c: Likewise.
	* c-c++-common/pr51628-32.c: Likewise.
	* gcc.dg/pr51628-17.c: Likewise.
	* gcc.dg/pr51628-18.c: Likewise.
	* gcc.dg/pr51628-19.c: Likewise.
	* gcc.dg/pr51628-20.c: Likewise.
	* gcc.dg/pr51628-21.c: Likewise.
	* gcc.dg/pr51628-22.c: Likewise.
	* gcc.dg/pr51628-23.c: Likewise.
	* gcc.dg/pr51628-24.c: Likewise.
	* gcc.dg/pr51628-25.c: Likewise.
	* c-c++-common/asan/misalign-1.c: Add
	-Wno-address-of-packed-member.
	* c-c++-common/asan/misalign-2.c: Likewise.
	* c-c++-common/ubsan/align-2.c: Likewise.
	* c-c++-common/ubsan/align-4.c: Likewise.
	* c-c++-common/ubsan/align-6.c: Likewise.
	* c-c++-common/ubsan/align-7.c: Likewise.
	* c-c++-common/ubsan/align-8.c: Likewise.
	* c-c++-common/ubsan/align-10.c: Likewise.
	* g++.dg/ubsan/align-2.C: Likewise.
	* gcc.target/i386/avx512bw-vmovdqu16-2.c: Likewise.
	* gcc.target/i386/avx512f-vmovdqu32-2.c: Likewise.
	* gcc.target/i386/avx512f-vmovdqu64-2.c: Likewise.
	* gcc.target/i386/avx512vl-vmovdqu16-2.c: Likewise.
	* gcc.target/i386/avx512vl-vmovdqu32-2.c: Likewise.
	* gcc.target/i386/avx512vl-vmovdqu64-2.c: Likewise.

libgcc/

	* unwind-pe.h (read_encoded_value_with_base): Add GCC pragma
	to ignore -Waddress-of-packed-member.

From-SVN: r267313

2018-12-20  Steven G. Kargl  <kargl@gcc.gnu.org>

	* libgfortran/ieee/ieee_arithmetic.F90: Re-organize file to 
	eliminate #ifdef ... #endif.  No functional change.

From-SVN: r267312

	* testsuite/27_io/filesystem/operations/proximate.cc: Fix test for
	MinGW.
	* testsuite/27_io/filesystem/path/append/source.cc: Likewise.
	* testsuite/27_io/filesystem/path/compare/lwg2936.cc: Likewise.

From-SVN: r267308

2018-12-20  Vladimir Makarov  <vmakarov@redhat.com>

	PR target/88457
	* ira-color.c (fast_allocation): Choose the best cost hard reg.

2018-12-20  Vladimir Makarov  <vmakarov@redhat.com>

	PR target/88457
	* ira-color.c (fast_allocation): Choose the best cost hard reg.

From-SVN: r267307