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  1. 15 Sep, 2015 22 commits
  3. 14 Sep, 2015 18 commits
    • [PATCH] Minor DOM cleanup · 55133eae 
              PR tree-optimization/47679
	* tree-ssa-dom.c (avail_expr_hash): Pass a pointer to a real
	type rather than void *.

From-SVN: r227762
      Jeff Law committed
    • re PR c++/44282 (fastcall is not mangled at all) · 65440c48 
      	PR c++/44282

	* mangle.c (write_CV_qualifiers_for_type): Also warn about regparm
	mangling with lower -fabi-version.

From-SVN: r227761
      Jason Merrill committed
    • The flag diagnostic_context::some_warnings_are_errors controls whether to give... · 0d179691 
      The flag diagnostic_context::some_warnings_are_errors controls whether
to give the message "all warnings being treated as errors". However, when
warnings are buffered and then discarded, this flag is not reset. It turns
out we do not need this flag at all, since we already count explicitly how
many warnings were converted into errors, and this number is kept up to
date for the buffered diagnostics used by Fortran.

gcc/ChangeLog:

2015-09-14  Manuel López-Ibáñez  <manu@gcc.gnu.org>

	PR fortran/67460
	* diagnostic.c (diagnostic_initialize): Do not set
	some_warnings_are_errors.
	(diagnostic_finish): Use DK_WERROR count instead.
	(diagnostic_report_diagnostic): Do not set
	some_warnings_are_errors.
	* diagnostic.h (struct diagnostic_context): Remove
	some_warnings_are_errors.

gcc/testsuite/ChangeLog:

2015-09-14  Manuel López-Ibáñez  <manu@gcc.gnu.org>

	PR fortran/67460
	* gfortran.dg/pr67460.f90: New test.

From-SVN: r227760
      Manuel López-Ibáñez committed
    • compiler: Ignore result context in constant expressions. · 34e98513 
          
    When evaluating a constant expression, the gofrontend would incorrectly
    force each operand to be represented as the resulting type before
    checking if the operation was valid with the untyped constants.
    According to the language specification on constant
    expressions(http://golang.org/ref/spec#Constant_expressions): "Untyped
    boolean, numeric, and string constants may be used as operands wherever
    it is legal to use an operand of boolean, numeric, or string type,
    respectively."
    
    Fixes golang/go#11566.
    
    Reviewed-on: https://go-review.googlesource.com/12716

From-SVN: r227758
      Ian Lance Taylor committed
    • [SPARC] Simplify const_all_ones_operand · 5c270a92 
      gen_rtx_CONST_VECTOR ensures that there is a single instance of:

       (const_vector:M [(const_int -1) ... (const_int -1)])

for each M, so pointer equality with CONSTM1_RTX is enough.  Also,
HOST_BITS_PER_WIDE_INT == 32 is doubly dead: HOST_WIDE_INT is always
64 bits now, and we always use const_int rather than const_double
or const_wide_int for all-ones values (or any other value that
fits in a signed HOST_WIDE_INT).

gcc/
	* config/sparc/predicates.md (const_all_ones_operand): Use
	CONSTM1_RTX to simplify definition.

From-SVN: r227757
      Richard Sandiford committed
    • ChangeLog: Fix shitespace. · 81fc3217 
      	* ChangeLog: Fix shitespace.
	* testsuite/ChangeLog: Ditto.

From-SVN: r227756
      Uros Bizjak committed
    • dump-new-function-3.c (dg-final): Also scan for $loopfn. · b4e240a1 
      	* gcc.dg/gomp/dump-new-function-3.c (dg-final): Also scan for $loopfn.
	* gcc.dg/gomp/notify-new-function-3.c (dg-final): Ditto.

From-SVN: r227755
      Uros Bizjak committed
    • re PR c++/51911 ([C++11] G++ accepts new auto { list }) · 5a0f3af4 
      /cp
2015-09-14  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/51911
	* parser.c (cp_parser_new_expression): Enforce 5.3.4/2 (as amended
	per the spirit of DR 1467).

/testsuite
2015-09-14  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/51911
	* g++.dg/cpp0x/new-auto1.C: New.

From-SVN: r227753
      Paolo Carlini committed
    • re PR target/67061 (sh64-elf: internal compiler error: in sh_find_set_of_reg, at… · f6ba5bb2 
      re PR target/67061 (sh64-elf: internal compiler error: in sh_find_set_of_reg, at config/sh/sh-protos.h:235)

gcc/
	PR target/67061
	* config/sh/sh-protos.h (sh_find_set_of_reg): Simplfiy for-loop.
	Handle call insns.

From-SVN: r227750
      Oleg Endo committed
    • lto-wrapper.c (merge_and_complain): Add OPT_fdiagnostics_show_caret... · eb472171 
      2015-09-14  Chung-Lin Tang  <cltang@codesourcery.com>

	* lto-wrapper.c (merge_and_complain): Add OPT_fdiagnostics_show_caret,
	OPT_fdiagnostics_show_option, OPT_fdiagnostics_show_location_, and
	OPT_fshow_column to handled saved option cases.
	(append_compiler_options): Do not skip the above added options.

From-SVN: r227749
      Chung-Lin Tang committed
    • [AArch64] Handle literal pools for functions > 1 MiB in size. · b4f50fd4 
          

This patch fixes the issue in PR63304 where we have
functions that are > 1MiB. The idea is to use adrp / ldr or adrp / add
instructions to address the literal pools under the use of a command line
option. I would like to turn this on by default on trunk but keep this
disabled by default for the release branches in order to get some
serious testing for this feature while it bakes on trunk.

As a follow-up I would like to try and see if estimate_num_insns or
something else can give us a heuristic to turn this on for "large" functions.
After all the number of incidences of this are quite low in real life,
so may be we should look to restrict this use as much as possible on the
grounds that this code generation implies an extra integer register for
addressing for every floating point and vector constant and I don't think
that's great in code that already may have high register pressure.

Tested on aarch64-none-elf with no regressions. A previous
version was bootstrapped and regression tested.

Applied to trunk.

regards
Ramana

2015-09-14  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

    	PR target/63304
    	* config/aarch64/aarch64.c (aarch64_expand_mov_immediate): Handle
    	nopcrelative_literal_loads.
    	(aarch64_classify_address): Likewise.
    	(aarch64_constant_pool_reload_icode): Define.
    	(aarch64_secondary_reload): Handle secondary reloads for
    	literal pools.
    	(aarch64_override_options): Handle nopcrelative_literal_loads.
    	(aarch64_classify_symbol): Handle nopcrelative_literal_loads.
    	* config/aarch64/aarch64.md (aarch64_reload_movcp<GPF_TF:mode><P:mode>):
    	Define.
    	(aarch64_reload_movcp<VALL:mode><P:mode>): Likewise.
    	* config/aarch64/aarch64.opt (mpc-relative-literal-loads): New option.
    	* config/aarch64/predicates.md (aarch64_constant_pool_symref): New
    	predicate.
    	* doc/invoke.texi (mpc-relative-literal-loads): Document.

From-SVN: r227748
      Ramana Radhakrishnan committed
    • re PR middle-end/67401 (Incorrect expand of __atomic_compare_exchange_8 using… · 641f1ab4 
      re PR middle-end/67401 (Incorrect expand of __atomic_compare_exchange_8 using __sync_val_compare_and_swap_8)

	PR middle-end/67401
	* optabs.c (expand_atomic_compare_and_swap): Move result of emitting
	sync_compare_and_swap_optab libcall to target_oval.

From-SVN: r227746
      John David Anglin committed
    • c-opts.c (c_common_post_options): Set C++ standard earlier, before setting various warnings. · aa9f4b4c 
      	* c-opts.c (c_common_post_options): Set C++ standard earlier, before
	setting various warnings.

From-SVN: r227744
      Marek Polacek committed
    • c-common.c (warn_for_sign_compare): Cast to unsigned when shifting a negative value. · aa256c4a 
      	* c-common.c (warn_for_sign_compare): Cast to unsigned when shifting
	a negative value.

	* c-typeck.c (set_nonincremental_init_from_string): Use
	HOST_WIDE_INT_M1U when shifting a negative value.

	* rtlanal.c (split_double): Cast to unsigned when shifting a negative
	value.
	* sched-int.h (UNKNOWN_DEP_COST): Likewise.

From-SVN: r227743
      Marek Polacek committed
    • PR28901 -Wunused-variable ignores unused const initialised variables in C · 0f876f22 
      12 years ago it was decided that -Wunused-variable shouldn't warn about
static const variables because some code used const static char rcsid[]
strings which were never used but wanted in the code anyway. But as the
bug points out this hides some real bugs. These days the usage of rcsids
is not very popular anymore. So this patch changes the default to warn
about unused static const variables in C with -Wunused-variable. And it
adds a new option -Wno-unused-const-variable to turn this warning off.
For C++ this new warning is off by default, since const variables can be
used as #defines in C++. New testcases for the new defaults in C and C++
are included testing the new warning and suppressing it with an unused
attribute or using -Wno-unused-const-variable.

gcc/ChangeLog

       PR c/28901
       * toplev.c (check_global_declaration): Check and use
       warn_unused_const_variable.
       * doc/invoke.texi (Warning Options): Add -Wunused-const-variable.
       (-Wunused-variable): Remove non-constant. For C implies
       -Wunused-const-variable.
       (-Wunused-const-variable): New.

gcc/c-family/ChangeLog

       PR c/28901
       * c.opt (Wunused-variable): Option from common.opt.
       (Wunused-const-variable): New option.

gcc/cp/ChangeLog

       PR c/28901
       * cp-objcp-common.c (cxx_warn_unused_global_decl): Remove hard-coded
       VAR_P TREE_READONLY override.

gcc/testsuite/ChangeLog

       PR c/28901
       * g++.dg/warn/unused-variable-1.C: New test.
       * g++.dg/warn/unused-variable-2.C: Likewise.
       * gcc.dg/unused-4.c: Adjust warning for static const.
       * gcc.dg/unused-variable-1.c: New test.
       * gcc.dg/unused-variable-2.c: Likewise.

From-SVN: r227742
      Mark Wielaard committed
    • match-and-simplify.texi: Update for changed syntax of inner ifs and the new switch expression. · cc099b03 
      2015-09-14  Richard Biener  <rguenther@suse.de>

	* doc/match-and-simplify.texi: Update for changed syntax
	of inner ifs and the new switch expression.

From-SVN: r227741
      Richard Biener committed
    • haswell.md: New file describing Haswell pipeline. · 64106a1a 
      	* config/i386/haswell.md: New file describing Haswell pipeline.
	* config/i386/i386.c (processor_alias_table): Use CPU_HASWELL for
	haswell-like processors.
	(ix86_reassociation_width): Increase reassociation width for 64-bit
	Haswell processor family.
	* config/i386/i386.md: Introduce haswell cpu and include new md file.

From-SVN: r227740
      Yuri Rumyantsev committed
    • match-and-simplify.texi: Fixup some formatting issues and document the 's' flag. · 43f77706 
      2015-09-14  Richard Biener  <rguenther@suse.de>

	* doc/match-and-simplify.texi: Fixup some formatting issues
	and document the 's' flag.

From-SVN: r227739
      Richard Biener committed