PR c/51849
gcc/
	* gcc/doc/invoke.texi: Document -Wc90-c99-compat.
gcc/c-family/
	* c-opts.c (sanitize_cpp_opts): Pass warn_c90_c99_compat to libcpp.
	* c.opt (Wc90-c99-compat): Add option.
gcc/c/
	* c-decl.c (build_array_declarator): Remove check for !flag_isoc99.
	Call pedwarn_c90 instead of pedwarn.
	(check_bitfield_type_and_width): Likewise.
	(declspecs_add_qual): Likewise.
	(declspecs_add_type): Likewise.
	(warn_variable_length_array): Unify function for -pedantic and -Wvla.
	Adjust to only call pedwarn_c90.
	(grokdeclarator): Remove pedantic && !flag_isoc99 check.  Call
	pedwarn_c90 instead of pedwarn.
	* c-errors.c (pedwarn_c90): Handle -Wc90-c99-compat.
	* c-parser.c (disable_extension_diagnostics): Handle
	warn_c90_c99_compat.
	(restore_extension_diagnostics): Likewise.
	(c_parser_enum_specifier): Remove check for !flag_isoc99.  Call
	pedwarn_c90 instead of pedwarn.
	(c_parser_initelt): Likewise.
	(c_parser_postfix_expression): Likewise.
	(c_parser_postfix_expression_after_paren_type): Likewise.
	(c_parser_compound_statement_nostart): Remove check for !flag_isoc99.
	* c-tree.h: Fix formatting.
	* c-typeck.c (build_array_ref): Remove check for !flag_isoc99.  Call
	pedwarn_c90 instead of pedwarn.
gcc/testsuite/
	* gcc.dg/Wc90-c99-compat-1.c: New test.
	* gcc.dg/Wc90-c99-compat-2.c: New test.
	* gcc.dg/Wc90-c99-compat-3.c: New test.
	* gcc.dg/Wc90-c99-compat-4.c: New test.
	* gcc.dg/Wc90-c99-compat-5.c: New test.
	* gcc.dg/Wc90-c99-compat-6.c: New test.
	* gcc.dg/wvla-1.c: Adjust dg-warning.
	* gcc.dg/wvla-2.c: Adjust dg-warning.
	* gcc.dg/wvla-4.c: Adjust dg-warning.
	* gcc.dg/wvla-6.c: Adjust dg-warning.
libcpp/
	* lex.c (_cpp_lex_direct): Warn when -Wc90-c99-compat is in effect.
	* charset.c (_cpp_valid_ucn): Likewise.
	* include/cpplib.h (cpp_options): Add cpp_warn_c90_c99_compat.
	* macro.c (replace_args): Warn when -Wc90-c99-compat is in effect.
	(parse_params): Likewise.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@213786 138bc75d-0d04-0410-961f-82ee72b054a4
[Patch, microblaze]: Add optimized lshrsi3

When barrel shifter is not present, the immediate value
is greater than #5 and optimization is -OS, the
compiler will generate shift operation using loop.

Changelog

2013-11-26  David Holsgrove <david.holsgrove@xilinx.com>

 * gcc/config/microblaze/microblaze.md: Add size optimized lshrsi3 insn

ChangeLog/testsuite

2014-02-12  David Holsgrove <david.holsgrove@xilinx.com>

 * gcc/testsuite/gcc.target/microblaze/others/lshrsi_Os_1.c: New test.

Signed-off-by:Nagaraju <nmekala@xilix.com>
Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
[Patch, microblaze]: Add INIT_PRIORITY support

Added TARGET_ASM_CONSTRUCTOR and TARGET_ASM_DESTRUCTOR macros.

These macros allows users to control the order of initialization
of objects defined at namespace scope with the init_priority
attribute by specifying a relative priority, a constant integral
expression currently bounded between 101 and 65535 inclusive.

Lower numbers indicate a higher priority.

Changelog

2013-11-26  Nagaraju Mekala <nagaraju.mekala@xilinx.com>

 * gcc/config/microblaze/microblaze.c: Add microblaze_asm_constructor,
   microblaze_asm_destructor. Define TARGET_ASM_CONSTRUCTOR and
   TARGET_ASM_DESTRUCTOR.

Signed-off-by:nagaraju <nmekala@xilix.com>
Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
[Patch, microblaze]: Add supervisory call support

A function can be executed in supervisory mode when a function
is declared with svc_handler attribute.

If a function with svc_handler is called, the processor switches
to supervisory mode and executes. After executing the function
it returns to normal mode.

Same feature can also be invoked with svc_table_handler attribute
but this attribute will accept a service ID, to be used for
calling the function.

Signed-off-by:nagaraju <nmekala@xilix.com>
Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
[Patch, microblaze]: Increase max alignment to please the testsuite

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
[Patch, microblaze]: Disable fivopts by default

Turn off ivopts by default. Interferes with cse.

Changelog

2013-03-18  Edgar E. Iglesias <edgar.iglesias@xilinx.com>

 * gcc/common/config/microblaze/microblaze-common.c
   (microblaze_option_optimization_table): Disable fivopts by default.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
[Patch, microblaze]: Use bralid for profiler calls

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
[Patch, microblaze]: Enable DWARF exception handling support.

Changelog

2013-03-18  Edgar E. Iglesias <edgar.iglesias@xilinx.com>
            David Holsgrove <david.holsgrove@xilinx.com>

 * common/config/microblaze/microblaze-common.c: Remove
   TARGET_EXCEPT_UNWIND_INFO definition.
 * config/microblaze/microblaze-protos.h: Add
   microblaze_eh_return prototype.
 * gcc/config/microblaze/microblaze.c: (microblaze_must_save_register,
   microblaze_expand_epilogue, microblaze_return_addr): Handle
   calls_eh_return
   (microblaze_eh_return): New function.
 * gcc/config/microblaze/microblaze.h: Define RETURN_ADDR_OFFSET,
   EH_RETURN_DATA_REGNO, MB_EH_STACKADJ_REGNUM, EH_RETURN_STACKADJ_RTX,
   ASM_PREFERRED_EH_DATA_FORMAT
 * gcc/config/microblaze/microblaze.md: Define eh_return pattern.

Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
[Patch, microblaze]: Fixed missing save of r18 in fast_interrupt.

Register 18 is used as a clobber register, and must be stored when
entering a fast_interrupt. Before this fix, register 18 was only
saved if it was used directly in the interrupt function.

However, if the fast_interrupt function called a function that used
r18, the register would not be saved, and thus be mangled
upon returning from the interrupt.

Changelog

2014-02-27  Klaus Petersen <klauspetersen@gmail.com>

 * gcc/config/microblaze/microblaze.c: Check for fast_interrupt in
   microblaze_must_save_register.

Signed-off-by: Klaus Petersen <klauspetersen@gmail.com>
Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
[Patch, microblaze]: Removed moddi3 routinue

Using the default moddi3 function as the existing implementation has many bugs

Signed-off-by:Nagaraju <nmekala@xilix.com>
[Patch, microblaze]: Added ashrsi3_with_size_opt

Added ashrsi3_with_size_opt pattern to optimize the sra instructions
when the -Os optimization is used. lshrsi3_with_size_opt is
being removed as it has conflicts with unsigned int variables

Signed-off-by:Nagaraju Mekala <nmekala@xilix.com>
[Patch, testsuite]: Add MicroBlaze to check_profiling_available

Testsuite, add microblaze*-*-* target in check_profiling_available
inline with other archs setting profiling_available_saved to 0

Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
[Patch, testsuite]: Allow MicroBlaze .weakext pattern in regex match

Extend regex pattern to include optional ext at the end of
.weak to match the MicroBlaze weak label .weakext

ChangeLog/testsuite

2014-02-14  David Holsgrove <david.holsgrove@xilinx.com>

 * gcc/testsuite/g++.dg/abi/rtti3.C: Extend scan-assembler
   pattern to take optional ext after .weak.
 * gcc/testsuite/g++.dg/abi/thunk4.C: Likewise.

Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
[Patch, testsuite]: Update MicroBlaze strings test

for new scan-assembly output resulting in use of $LC label

ChangeLog/testsuite

2014-02-14  David Holsgrove <david.holsgrove@xilinx.com>

 * gcc/testsuite/gcc.target/microblaze/others/strings1.c: Update
   to include $LC label.

Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
[Patch, testsuite]: Add MicroBlaze to target-supports for atomic builtin tests

MicroBlaze added to supported targets for atomic builtin tests.

Changelog/testsuite

2014-02-14  David Holsgrove <david.holsgrove@xilinx.com>

 * gcc/testsuite/lib/target-supports.exp: Add microblaze to
   check_effective_target_sync_int_long.

Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
[LOCAL]: For dejagnu static testing on qemu, suppress warnings

about multiple definitions from the test function and libc in line
with method used by powerpc. Dynamic linking and using a qemu binary
which understands sysroot resolves all test failures with builtins

Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
[LOCAL]: Testsuite - explicitly add -fivopts for tests that depend on it

(test gcc/testsuite/gcc.dg/tree-ssa/ivopts-lt.c doesnt exist in 4.6 branch)

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
[LOCAL]: Quick fail g++.dg/opt/memcpy1.C

This particular testcase fails with a timeout. Instead, fail it
at compile-time for microblaze. This speeds up the testsuite without
removing it from the FAIL reports.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
[LOCAL]: Testsuite - builtins tests require fpic

Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>