sourcebuild.texi (arm_tune_string_ops_prefer_neon): New.

	* doc/sourcebuild.texi (arm_tune_string_ops_prefer_neon): New.

	gcc/testsuite/ChangeLog
	* lib/target-supports.exp (arm_tune_string_ops_prefer_neon): New.
	* gcc.target/arm/memset-inline-4.c: Skip for
	arm_tune_string_ops_prefer_neon.
	* gcc.target/arm/memset-inline-5.c: Ditto.
	* gcc.target/arm/memset-inline-6.c: Ditto.
	* gcc.target/arm/memset-inline-8.c: Ditto.
	* gcc.target/arm/memset-inline-9.c: Ditto.

From-SVN: r221651

gcc/ChangeLog

 2015-03-25  Bin Cheng  <bin.cheng@arm.com>
 
+	* doc/sourcebuild.texi (arm_tune_string_ops_prefer_neon): New.
+
+2015-03-25  Bin Cheng  <bin.cheng@arm.com>
+
 	* config/arm/arm.opt (print_tune_info): New option.
 	* config/arm/arm.c (arm_print_tune_info): New function.
 	(arm_file_start): Call arm_print_tune_info.

gcc/doc/sourcebuild.texi

@@ -1527,6 +1527,9 @@ Some multilibs may be incompatible with this option.
 @item arm_neon
 ARM target supports generating NEON instructions.
 
+@item arm_tune_string_ops_prefer_neon
+Test CPU tune supports inlining string operations with NEON instructions.
+
 @item arm_neon_hw
 Test system supports executing NEON instructions.
 

gcc/testsuite/ChangeLog

+2015-03-25  Bin Cheng  <bin.cheng@arm.com>
+
+	* lib/target-supports.exp (arm_tune_string_ops_prefer_neon): New.
+	* gcc.target/arm/memset-inline-4.c: Skip for
+	arm_tune_string_ops_prefer_neon.
+	* gcc.target/arm/memset-inline-5.c: Ditto.
+	* gcc.target/arm/memset-inline-6.c: Ditto.
+	* gcc.target/arm/memset-inline-8.c: Ditto.
+	* gcc.target/arm/memset-inline-9.c: Ditto.
+
 2015-03-24  Paolo Carlini  <paolo.carlini@oracle.com>
 
 	PR c++/58923

gcc/testsuite/gcc.target/arm/memset-inline-4.c

 /* { dg-do run } */
-/* { dg-skip-if "Don't inline memset using neon instructions on cortex-a9" { *-*-* } { "-mcpu=cortex-a9" } { "" } } */
-/* { dg-skip-if "Don't inline memset using neon instructions on cortex-a9" { *-*-* } { "-mtune=cortex-a9" } { "" } } */
+/* { dg-skip-if "Don't inline memset using neon instructions" { ! arm_tune_string_ops_prefer_neon } } */
 /* { dg-options "-save-temps -O2 -fno-inline" } */
 /* { dg-add-options "arm_neon" } */
 

gcc/testsuite/gcc.target/arm/memset-inline-5.c

 /* { dg-do run } */
-/* { dg-skip-if "Don't inline memset using neon instructions on cortex-a9" { *-*-* } { "-mcpu=cortex-a9" } { "" } } */
-/* { dg-skip-if "Don't inline memset using neon instructions on cortex-a9" { *-*-* } { "-mtune=cortex-a9" } { "" } } */
+/* { dg-skip-if "Don't inline memset using neon instructions" { ! arm_tune_string_ops_prefer_neon } } */
 /* { dg-options "-save-temps -O2 -fno-inline" } */
 /* { dg-add-options "arm_neon" } */
 

gcc/testsuite/gcc.target/arm/memset-inline-6.c

 /* { dg-do run } */
-/* { dg-skip-if "Don't inline memset using neon instructions on cortex-a9" { *-*-* } { "-mcpu=cortex-a9" } { "" } } */
-/* { dg-skip-if "Don't inline memset using neon instructions on cortex-a9" { *-*-* } { "-mtune=cortex-a9" } { "" } } */
+/* { dg-skip-if "Don't inline memset using neon instructions" { ! arm_tune_string_ops_prefer_neon } } */
 /* { dg-options "-save-temps -O2 -fno-inline" } */
 /* { dg-add-options "arm_neon" } */
 

gcc/testsuite/gcc.target/arm/memset-inline-8.c

 /* { dg-do run } */
-/* { dg-skip-if "Don't inline memset using neon instructions on cortex-a9" { *-*-* } { "-mcpu=cortex-a9" } { "" } } */
-/* { dg-skip-if "Don't inline memset using neon instructions on cortex-a9" { *-*-* } { "-mtune=cortex-a9" } { "" } } */
+/* { dg-skip-if "Don't inline memset using neon instructions" { ! arm_tune_string_ops_prefer_neon } } */
 /* { dg-options "-save-temps -O2 -fno-inline"  } */
 /* { dg-add-options "arm_neon" } */
 

gcc/testsuite/gcc.target/arm/memset-inline-9.c

 /* { dg-do run } */
-/* { dg-skip-if "Don't inline memset using neon instructions on cortex-a9" { *-*-* } { "-mcpu=cortex-a9" } { "" } } */
-/* { dg-skip-if "Don't inline memset using neon instructions on cortex-a9" { *-*-* } { "-mtune=cortex-a9" } { "" } } */
+/* { dg-skip-if "Don't inline memset using neon instructions" { ! arm_tune_string_ops_prefer_neon } } */
 /* { dg-options "-save-temps -Os -fno-inline" } */
 /* { dg-add-options "arm_neon" } */
 

gcc/testsuite/lib/target-supports.exp

@@ -2954,6 +2954,14 @@ proc check_effective_target_arm_cortex_m { } {
     } "-mthumb"]
 }
 
+# Return 1 if this compilation turns on string_ops_prefer_neon on.
+
+proc check_effective_target_arm_tune_string_ops_prefer_neon { } {
+    return [check_no_messages_and_pattern arm_tune_string_ops_prefer_neon "@string_ops_prefer_neon:\t1" assembly {
+	int foo (void) { return 0; }
+    } "-O2 -mprint-tune-info" ]
+}
+
 # Return 1 if the target supports executing NEON instructions, 0
 # otherwise.  Cache the result.