re PR target/82641 (Unable to enable crc32 for a certain function with target…

re PR target/82641 (Unable to enable crc32 for a certain function with target attribute on ARM (aarch32))

2017-11-10  Tamar Christina  <tamar.christina@arm.com>

	PR target/82641
	* config/arm/arm.c
	(arm_option_override): Refactor.
	(arm_option_reconfigure_globals): New.
	(arm_options_perform_arch_sanity_checks): New.
	* config/arm/arm-protos.h (arm_option_reconfigure_globals): New prototype.
	(arm_options_perform_arch_sanity_checks): Likewise

From-SVN: r254632

gcc/ChangeLog

+2017-11-10  Tamar Christina  <tamar.christina@arm.com>
+
+	PR target/82641
+	* config/arm/arm.c
+	(arm_option_override): Refactor.
+	(arm_option_reconfigure_globals): New.
+	(arm_options_perform_arch_sanity_checks): New.
+	* config/arm/arm-protos.h (arm_option_reconfigure_globals): New prototype.
+	(arm_options_perform_arch_sanity_checks): Likewise
+
 2017-11-10  Pat Haugen  <pthaugen@us.ibm.com>
 
 	* rs6000/power9.md (power9-qpdiv): Correct DFU pipe usage.

gcc/config/arm/arm-protos.h

@@ -224,6 +224,8 @@ extern tree arm_valid_target_attribute_tree (tree, struct gcc_options *,
 extern void arm_configure_build_target (struct arm_build_target *,
 					struct cl_target_option *,
 					struct gcc_options *, bool);
+extern void arm_option_reconfigure_globals (void);
+extern void arm_options_perform_arch_sanity_checks (void);
 extern void arm_pr_long_calls (struct cpp_reader *);
 extern void arm_pr_no_long_calls (struct cpp_reader *);
 extern void arm_pr_long_calls_off (struct cpp_reader *);