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  1. 12 Dec, 2016 18 commits
    • re PR preprocessor/78680 (ICE in get_substring_ranges_for_loc, at input.c:1398) · 470a60b2 
      Fix for PR preprocessor/78680

PR preprocessor/78680 identifies a crash when attempting to issue
a -Wformat warning, where the format string includes a string token
split across multiple physical source lines via backslash-continued
lines.

The issue is that libcpp is generating bogus range information for
such tokens.

For example, in:

void fn1() {
  __builtin_printf("\
     %ld.\n\
        2\n"); };

the range of the string token is printed as:

   __builtin_printf("\
                    ^~

whereas the range ought to be:

  __builtin_printf("\
                   ^~
     %ld.\n\
     ~~~~~~~
        2\n"); };
        ~~~~

The root cause is that the line notes expressing the update
of the buffer in lex.c aren't yet updated when the end-point of
the token is computed

3095	    tok_range.m_finish
3096	      = linemap_position_for_column (pfile->line_table,
3097					     CPP_BUF_COLUMN (buffer, buffer->cur));

so that the physical line is still regarded as that of the start
of the token, and, where CPP_BUF_COLUMN uses (BUF)->line_base,
line_base is still the location of the first physical line in the
and hence the column information is too large (as if it were the
offset in the *logical* line).

(the printed range is somewhat misleading; the actual buggy range
extends beyond the "\ in the line, but within diagnostic-show-locus.c
layout::print_annotation_line only prints up to the xbound set by
layout::print_source_line and so truncates most of the buggy range).

The fix is to ensure that line notes are handled before calculating
the end-point of the token range.

This leads to the range for the string token being correctly
computed, as:

  __builtin_printf("\
                   ^~
     %ld.\n\
     ~~~~~~~
        2\n"); };
        ~~~~

and this leads to get_substring_ranges_for_loc failing gracefully,
rather than crashing.

gcc/testsuite/ChangeLog:
	PR preprocessor/78680
	* gcc.dg/format/pr78680.c: New test case.
	* gcc.dg/plugin/diagnostic-test-expressions-1.c
	(test_multiline_token): New function.
	* gcc.dg/plugin/diagnostic-test-string-literals-1.c
	(test_backslash_continued_logical_lines): New function.

libcpp/ChangeLog:
	PR preprocessor/78680
	* lex.c (_cpp_lex_direct): Ensure line notes are processed before
	computing the end-point of the token.

From-SVN: r243567
      David Malcolm committed
    • re PR other/78252 (C++ demangler crashes with infinite recursion with lambda (auto)) · 8e09a726 
      	libiberty/
	PR c++/78252
	* cp-demangle.c (struct d_print_info): Add is_lambda_arg field.
	(d_print_init): Initialize it.
	(d_print_comp_inner) <DEMANGLE_COMPONENT_TEMPLATE_PARAM>: Check
	is_lambda_arg for auto.
	<DEMANGLE_COMPONENT_REFERENCE,
	DEMANGLE_COMPONENT_RVALUE_REFERENCE>: Skip smashing check when
	is_lambda_arg.
	<DEMANGLE_COMPONENT_LAMBDA>: Increment is_lambda_arg around arg
	printing.
	* testsuite/demangle-expected: Add lambda auto mangling cases.

	gcc/testsuite/
	PR c++/78252
	* g++.dg/cpp1y/lambda-mangle-1.C: New.

From-SVN: r243566
      Nathan Sidwell committed
    • re PR target/78738 (ICE in extract_insn, at recog.c:2311) · b8cab8a5 
      	PR target/78738
	* config/i386/i386.h (X87_ENABLE_ARITH): Also enable for
	flag_unsafe_math_optimizations.
	(X87_ENABLE_FLOAT): Ditto.

testsuite/ChangeLog:

	PR target/78738
	* gcc.target/i386/pr78738.c: New test.

From-SVN: r243559
      Uros Bizjak committed
    • [libstdc++][testsuite] XFAIL tests relying on long double-to-string conversions on broken newlib · 39c42937 
          * lib/target-supports.exp
    (check_effective_target_newlib_broken_long_double_io): New check.
    (check_effective_target_frexpl): Likewise.

    * testsuite/21_strings/basic_string/numeric_conversions/char/stod.cc:
    XFAIL run if newlib_broken_long_double_io.
    * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/stod.cc:
    Likewise.
    * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/stold.cc:
    Likewise.
    * testsuite/27_io/basic_ostream/inserters_arithmetic/char/hexfloat.cc:
    Likewise.

From-SVN: r243558
      Kyrylo Tkachov committed
    • Remove stray character at end of dg-do directive · 1c433842 
      	* testsuite/experimental/filesystem/operations/is_empty.cc:
	Remove stray character at end of dg-do directive.

From-SVN: r243555
      Jonathan Wakely committed
    • re PR middle-end/78716 (ICE in gimplify_va_arg_expr, at gimplify.c:12650 (i686-linux-gnu)) · 3071bfa9 
      	PR middle-end/78716
	* gimplify.c (gimplify_va_arg_expr): Don't require ADDR_EXPR for
	Case 1; check POINTER_TYPE_P instead.

	* g++.dg/other/vararg-5.C: New.

From-SVN: r243553
      Marek Polacek committed
    • Disable hwcaps on libgfortran · 66dbcf2d 
      	libgfortran:
	* configure.ac: Call GCC_CHECK_LINKER_HWCAP.
	* Makefile.am (libgfortran_la_LDFLAGS): Add HWCAP_LDFLAGS.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* Makefile.in: Regenerate.

	config:
	* hwcaps.m4: New file.

	libitm:
	* acinclude.m4 (LIBITM_CHECK_LINKER_FEATURES): Remove.
	* aclocal.m4: Regenerate.
	* configure.ac: Call GCC_CHECK_LINKER_HWCAP instead of
	LIBITM_CHECK_LINKER_HWCAP.

From-SVN: r243552
      Rainer Orth committed
    • re PR rtl-optimization/78669 (ICE: in combine_and_move_insns, at ira.c:3665 with… · fba12165 
      re PR rtl-optimization/78669 (ICE: in combine_and_move_insns, at ira.c:3665 with -Os -fno-tree-ter -mavx512bw)


	PR rtl-optimization/78669
	* ira.c (combine_and_move_insns): When deleting an insn, clear the
	replace flag for all used regs in that insn.

	PR rtl-optimization/78669
	* gcc.target/i386/pr78669.c: New test.

From-SVN: r243551
      Bernd Schmidt committed
    • Remove stray character at end of dg-do directive · 8152d6ef 
      	* testsuite/experimental/filesystem/operations/temp_directory_path.cc:
	Remove stray character at end of dg-do directive.

From-SVN: r243548
      Jonathan Wakely committed
    • lib1funcs.S (__ashrdi3): Fix typo from r243545. · 8ae1c2c1 
      libgcc/
	* config/avr/lib1funcs.S (__ashrdi3): Fix typo from r243545.

From-SVN: r243546
      George Spelvin committed
    • lib1funcs.S (__ashldi3): Use __tmp_reg__ to restore R16 instead of push + pop. · a5b947fa 
      libgcc/
	2016-12-12  George Spelvin  <linux@sciencehorizons.net>
	* config/avr/lib1funcs.S (__ashldi3): Use __tmp_reg__ to restore
	R16 instead of push + pop.
	(__ashrdi3, __lshrdi3): Same. And use __zero_reg__ for signs.

From-SVN: r243545
      George Spelvin committed
    • Fix g++.dg/debug/dwarf2/typedef1.C · 9e903493 
      	* g++.dg/debug/dwarf2/typedef1.C: Adjust pattern for last change.

From-SVN: r243544
      Rainer Orth committed
    • MIPS: Upgrade to R2 for -mnan=2008 and -mabs=2008. · 4a584d05 
      gcc/testsuite/

	* gcc.target/mips/mips.exp (mips-dg-options): Upgrade to R2 for
	-mnan=2008 and -mabs=2008.

From-SVN: r243542
      Toma Tabacu committed
    • Define arm_arch_core_flags in a single file · 6e4e50f5 
      2016-12-12  Thomas Preud'homme  <thomas.preudhomme@arm.com>

    gcc/
    * config/arm/arm-opts.h: Move struct arm_arch_core_flag and
    arm_arch_core_flags to ...
    * common/config/arm/arm-common.c: There.

From-SVN: r243541
      Thomas Preud'homme committed
    • constraints.md (T): Use special memory constraint. · 5c2ee2f1 
      	* config/sparc/constraints.md (T): Use special memory constraint.
	(U): Minor tweak.
	(W): Add TARGET_ARCH64 test.
	* config/sparc/sparc.md (*movdi_insn_sp32): Replace 'W' with 'T'.
	(*movdf_insn_sp32): Likewise.
	(*mov<VM64:mode>_insn_sp32): Likewise.  Replace 'e' with 'f' in
	conjunction with offsettable memory references.

From-SVN: r243540
      Eric Botcazou committed
    • invoke.texi: Correct capitalization of OpenMP. · d688bd65 
      	* doc/invoke.texi: Correct capitalization of OpenMP.

From-SVN: r243539
      John David Anglin committed
    • nios2.c (nios2_emit_move_sequence): Call copy_rtx to avoid shared structure error. · 1cf4526c 
      2016-12-11  Sandra Loosemore  <sandra@codesourcery.com>

	gcc/
	* config/nios2/nios2.c (nios2_emit_move_sequence): Call copy_rtx
	to avoid shared structure error.

From-SVN: r243538
      Sandra Loosemore committed
    • Daily bump. · 8a828956 
      From-SVN: r243537
      GCC Administrator committed
  3. 11 Dec, 2016 9 commits
  5. 10 Dec, 2016 8 commits
  7. 09 Dec, 2016 5 commits