re PR target/57756 (Function target attribute is retaining state of previously seen function)

PR target/57756

The root-cause of this PR is that global_options is not restored to
default before calling ix86_valid_target_attribute_tree and hence
target attributes are incorrectly processed sometimes.

This patch refactors code in i386.c in functions in the call-chain of 
ix86_valid_target_attribute_tree to use any gcc_options struct passed
as a parameter. It replaces existing code which always uses the
global_options struct.

2013-10-15 Sriraman Tallam  <tmsriram@google.com>

	PR target/57756
	* optc-save-gen.awk: Add extra parameter to the save and restore
	target calls.
	* opth-gen.awk: Generate new TARGET_* macros  to accept a parameter.
	* tree.c (build_optimization_node): New parameter.  Add extra parameter
	to call to cl_optimization_save.
	(build_target_option_node): New parameter. Add extra parameter
	to call to cl_target_option_save.
	* tree.h (build_optimization_node): New parameter.
	(build_target_option_node): New parameter.
	* c-family/c-common.c (handle_optimize_attribute): Fix calls to
	build_optimization_node and build_target_option_node.
	* c-family/c-pragma.c (handle_pragma_optimize): Ditto.
	(handle_pragma_push_options): Ditto.
	* toplev.c (process_options): Ditto.
	* opts.c (init_options_struct): Check for opts_set non-null.
	* target.def (target_option.save): New parameter.
	(target_option.restore): New parameter.
	* tm.texi: Generate.
	* config/i386/i386-c.c (ix86_target_macros_internal): Ditto.
	(ix86_pragma_target_parse): Ditto.
	* config/i386/i386-protos.h (ix86_valid_target_attribute_tree): New
	parameters.
	* config/rs6000/rs6000.c (rs6000_option_override_internal): Fix calls
	to  build_optimization_node and build_target_option_node.
	(rs6000_valid_attribute_p): Ditto.
	(rs6000_pragma_target_parse): Ditto.
	* config/i386/i386.opt (x_ix86_target_flags_explicit): New TargetSave
	data.
	* config/i386/i386.h:
	TARGET_64BIT_P: New Macro
	TARGET_MMX_P: New Macro.
	TARGET_3DNOW_P: New Macro.
	TARGET_3DNOW_A_P: New Macro.
	TARGET_SSE_P: New Macro.
	TARGET_SSE2_P: New Macro.
	TARGET_SSE3_P: New Macro.
	TARGET_SSSE3_P: New Macro.
	TARGET_SSE4_1_P: New Macro.
	TARGET_SSE4_2_P: New Macro.
	TARGET_AVX_P: New Macro.
	TARGET_AVX2_P: New Macro.
	TARGET_AVX512F_P: New Macro.
	TARGET_AVX512PF_P: New Macro.
	TARGET_AVX512ER_P: New Macro.
	TARGET_AVX512CD_P: New Macro.
	TARGET_FMA_P: New Macro.
	TARGET_SSE4A_P: New Macro.
	TARGET_FMA4_P: New Macro.
	TARGET_XOP_P: New Macro.
	TARGET_LWP_P: New Macro.
	TARGET_ABM_P: New Macro.
	TARGET_BMI_P: New Macro.
	TARGET_BMI2_P: New Macro.
	TARGET_LZCNT_P: New Macro.
	TARGET_TBM_P: New Macro.
	TARGET_POPCNT_P: New Macro.
	TARGET_SAHF_P: New Macro.
	TARGET_MOVBE_P: New Macro.
	TARGET_CRC32_P: New Macro.
	TARGET_AES_P: New Macro.
	TARGET_PCLMUL_P: New Macro.
	TARGET_CMPXCHG16B_P: New Macro.
	TARGET_FSGSBASE_P: New Macro.
	TARGET_RDRND_P: New Macro.
	TARGET_F16C_P: New Macro.
	TARGET_RTM_P: New Macro.
	TARGET_HLE_P: New Macro.
	TARGET_RDSEED_P: New Macro.
	TARGET_PRFCHW_P: New Macro.
	TARGET_ADX_P: New Macro.
	TARGET_FXSR_P: New Macro.
	TARGET_XSAVE_P: New Macro.
	TARGET_XSAVEOPT_P: New Macro.
	TARGET_LP64_P: New Macro.
	TARGET_X32_P: New Macro.
	TARGET_FPMATH_DEFAULT_P: New Macro.
	TARGET_FLOAT_RETURNS_IN_80387_P: New Macro.
	* config/i386/i386.c (ix86_option_override_internal): New parameters.
	opts and opts_set.
	Change ix86_tune_string to access opts->x_ix86_tune_string.
	Change ix86_isa_flags to access opts->x_ix86_isa_flags.
	Change ix86_arch_string to access opts->x_ix86_arch_string.
	Change ix86_stringop_alg to access opts->x_ix86_stringop_alg.
	Change ix86_pmode to access opts->x_ix86_pmode.
	Change ix86_abi to access opts->x_ix86_abi.
	Change ix86_cmodel to access opts->x_ix86_cmodel.
	Change ix86_asm_dialect to access opts->x_ix86_asm_dialect.
	Change ix86_isa_flags_explicit to access
	opts->x_ix86_isa_flags_explicit.
	Change ix86_dump_tunes to access opts->x_ix86_dump_tunes.
	Change ix86_regparm to access opts->x_ix86_regparm.
	Change ix86_branch_cost to access opts->x_ix86_branch_cost.
	Change ix86_preferred_stack_boundary_arg to access
	opts->x_ix86_preferred_stack_boundary_arg.
	Change ix86_force_align_arg_pointer to access
	opts->x_ix86_force_align_arg_pointer.
	Change ix86_incoming_stack_boundar_arg to access
	opts->x_ix86_incoming_stack_boundar_arg.
	Change ix86_fpmath to access opts->x_ix86_fpmath.
	Change ix86_veclibabi_type to access opts->x_ix86_veclibabi_type.
	Change ix86_recip_name to access opts->x_ix86_recip_name.
	Change ix86_stack_protector_guard to access
	opts->x_ix86_stack_protector_guard.
	Change ix86_tune_memcpy_strategy to access
	opts->x_ix86_tune_memcpy_strategy.
	Change ix86_tune_memset_strategy to access
	opts->x_ix86_tune_memset_strategy.
	Change global_options to access opts.
	Change global_options_set to access opts_set.
        Change TARGET_64BIT to TARGET_64BIT_P (opts->...)
        Change TARGET_MMX to TARGET_MMX_P (opts->...)
        Change TARGET_3DNOW to TARGET_3DNOW_P (opts->...)
        Change TARGET_3DNOW_A to TARGET_3DNOW_A_P (opts->...)
        Change TARGET_SSE to TARGET_SSE_P (opts->...)
        Change TARGET_SSE2 to TARGET_SSE2_P (opts->...)
        Change TARGET_SSE3 to TARGET_SSE3_P (opts->...)
        Change TARGET_SSSE3 to TARGET_SSSE3_P (opts->...)
        Change TARGET_SSE4_1 to TARGET_SSE4_1_P (opts->...)
        Change TARGET_SSE4_2 to TARGET_SSE4_2_P (opts->...)
        Change TARGET_AVX to TARGET_AVX_P (opts->...)
        Change TARGET_AVX2 to TARGET_AVX2_P (opts->...)
        Change TARGET_AVX512F to TARGET_AVX512F_P (opts->...)
        Change TARGET_AVX512PF to TARGET_AVX512PF_P (opts->...)
        Change TARGET_AVX512ER to TARGET_AVX512ER_P (opts->...)
        Change TARGET_AVX512CD to TARGET_AVX512CD_P (opts->...)
        Change TARGET_FMA to TARGET_FMA_P (opts->...)
        Change TARGET_SSE4A to TARGET_SSE4A_P (opts->...)
        Change TARGET_FMA4 to TARGET_FMA4_P (opts->...)
        Change TARGET_XOP to TARGET_XOP_P (opts->...)
        Change TARGET_LWP to TARGET_LWP_P (opts->...)
        Change TARGET_ABM to TARGET_ABM_P (opts->...)
        Change TARGET_BMI to TARGET_BMI_P (opts->...)
        Change TARGET_BMI2 to TARGET_BMI2_P (opts->...)
        Change TARGET_LZCNT to TARGET_LZCNT_P (opts->...)
        Change TARGET_TBM to TARGET_TBM_P (opts->...)
        Change TARGET_POPCNT to TARGET_POPCNT_P (opts->...)
        Change TARGET_SAHF to TARGET_SAHF_P (opts->...)
        Change TARGET_MOVBE to TARGET_MOVBE_P (opts->...)
        Change TARGET_CRC32 to TARGET_CRC32_P (opts->...)
        Change TARGET_AES to TARGET_AES_P (opts->...)
        Change TARGET_PCLMUL to TARGET_PCLMUL_P (opts->...)
        Change TARGET_CMPXCHG16B to TARGET_CMPXCHG16B_P (opts->...)
        Change TARGET_FSGSBASE to TARGET_FSGSBASE_P (opts->...)
        Change TARGET_RDRND to TARGET_RDRND_P (opts->...)
        Change TARGET_F16C to TARGET_F16C_P (opts->...)
        Change TARGET_RTM to TARGET_RTM_P (opts->...)
        Change TARGET_HLE to TARGET_HLE_P (opts->...)
        Change TARGET_RDSEED to TARGET_RDSEED_P (opts->...)
        Change TARGET_PRFCHW to TARGET_PRFCHW_P (opts->...)
        Change TARGET_ADX to TARGET_ADX_P (opts->...)
        Change TARGET_FXSR to TARGET_FXSR_P (opts->...)
        Change TARGET_XSAVE to TARGET_XSAVE_P (opts->...)
        Change TARGET_XSAVEOPT to TARGET_XSAVEOPT_P (opts->...)
        Change TARGET_LP64 to TARGET_LP64_P (opts->...)
        Change TARGET_X32 to TARGET_X32_P (opts->...)
        Change TARGET_FPMATH_DEFAULT to TARGET_FPMATH_DEFAULT_P (opts->...)
        Change TARGET_FLOAT_RETURNS_IN_80387 to
	 TARGET_FLOAT_RETURNS_IN_80387_P (opts->...)
	(ix86_function_specific_save): New parameter. Use opts-> fields
	to replace global fields.
	(ix86_function_specific_restore): Ditto.
	(ix86_valid_target_attribute_inner_p): New parameters.
	Fix recursive call.
	Fix call to ix86_handle_option and set_option.
	(ix86_valid_target_attribute_tree): New parameters.
	Change global_options to access opts.
	Change global_options_set to access opts_set.
	Fix call to ix86_valid_target_attribute_inner_p.
	Change ix86_tune_string to access opts->x_ix86_tune_string.
	Change ix86_arch_string to access opts->x_ix86_arch_string.
	Change ix86_fpmath to access opts->x_ix86_fpmath
	Fix call to ix86_option_override_internal.
	Fix call to ix86_add_new_builtins.
	Fix calls to build_optimization_node and build_target_option_node.
	(ix86_valid_target_attribute_p): Remove access to global_options.
	Use new gcc_options structure func_options.
	Fix call to ix86_valid_target_attribute_tree.
	Fix call to  build_optimization_node.
	(get_builtin_code_for_version):	Fix call to
	ix86_valid_target_attribute_tree.

	PR target/57756
	* gcc.target/i386/pr57756.c: New test.
	* gcc.target/i386/pr57756_2.c: New test.

From-SVN: r203634

1 files changed, 4 insertions, 4 deletions

diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi
index 8d220f3..f96764d 100644
--- a/gcc/doc/tm.texi
+++ b/gcc/doc/tm.texi
@@ -9853,17 +9853,17 @@ the function declaration to hold a pointer to a target-specific
 @code{struct cl_target_option} structure.
 @end deftypefn
 
-@deftypefn {Target Hook} void TARGET_OPTION_SAVE (struct cl_target_option *@var{ptr})
+@deftypefn {Target Hook} void TARGET_OPTION_SAVE (struct cl_target_option *@var{ptr}, struct gcc_options *@var{opts})
 This hook is called to save any additional target-specific information
 in the @code{struct cl_target_option} structure for function-specific
-options.
+options from the @code{struct gcc_options} structure.
 @xref{Option file format}.
 @end deftypefn
 
-@deftypefn {Target Hook} void TARGET_OPTION_RESTORE (struct cl_target_option *@var{ptr})
+@deftypefn {Target Hook} void TARGET_OPTION_RESTORE (struct gcc_options *@var{opts}, struct cl_target_option *@var{ptr})
 This hook is called to restore any additional target-specific
 information in the @code{struct cl_target_option} structure for
-function-specific options.
+function-specific options to the @code{struct gcc_options} structure.
 @end deftypefn
 
 @deftypefn {Target Hook} void TARGET_OPTION_PRINT (FILE *@var{file}, int @var{indent}, struct cl_target_option *@var{ptr})