target-supports.exp (check_effective_target_arm_v8_3a_complex_neon_ok_nocache, [...]): New.

gcc/testsuite/ChangeLog:

2019-01-10  Tamar Christina  <tamar.christina@arm.com>

	* lib/target-supports.exp
	(check_effective_target_arm_v8_3a_complex_neon_ok_nocache,
	check_effective_target_arm_v8_3a_complex_neon_ok,
	add_options_for_arm_v8_3a_complex_neon,
	check_effective_target_arm_v8_3a_complex_neon_hw,
	check_effective_target_vect_complex_rot_N): New.

From-SVN: r267794

gcc/testsuite/ChangeLog

+2019-01-10  Tamar Christina  <tamar.christina@arm.com>
+
+	* lib/target-supports.exp
+	(check_effective_target_arm_v8_3a_complex_neon_ok_nocache,
+	check_effective_target_arm_v8_3a_complex_neon_ok,
+	add_options_for_arm_v8_3a_complex_neon,
+	check_effective_target_arm_v8_3a_complex_neon_hw,
+	check_effective_target_vect_complex_rot_N): New.
+
 2019-01-09  Steven G. Kargl  <kargl@gcc.gnu.org>
 
 	PR fortran/88376

gcc/testsuite/lib/target-supports.exp

@@ -9064,3 +9064,111 @@ proc check_effective_target_inf { } {
         const double pinf = __builtin_inf ();
     }]
 }
+
+# Return 1 if the target supports ARMv8.3 Adv.SIMD Complex instructions
+# instructions, 0 otherwise.  The test is valid for ARM and for AArch64.
+# Record the command line options needed.
+
+proc check_effective_target_arm_v8_3a_complex_neon_ok_nocache { } {
+    global et_arm_v8_3a_complex_neon_flags
+    set et_arm_v8_3a_complex_neon_flags ""
+
+    if { ![istarget arm*-*-*] && ![istarget aarch64*-*-*] } {
+        return 0;
+    }
+
+    # Iterate through sets of options to find the compiler flags that
+    # need to be added to the -march option.
+    foreach flags {"" "-mfloat-abi=softfp -mfpu=auto" "-mfloat-abi=hard -mfpu=auto"} {
+        if { [check_no_compiler_messages_nocache \
+                  arm_v8_3a_complex_neon_ok object {
+            #if !defined (__ARM_FEATURE_COMPLEX)
+            #error "__ARM_FEATURE_COMPLEX not defined"
+            #endif
+        } "$flags -march=armv8.3-a"] } {
+            set et_arm_v8_3a_complex_neon_flags "$flags -march=armv8.3-a"
+            return 1
+        }
+    }
+
+    return 0;
+}
+
+proc check_effective_target_arm_v8_3a_complex_neon_ok { } {
+    return [check_cached_effective_target arm_v8_3a_complex_neon_ok \
+                check_effective_target_arm_v8_3a_complex_neon_ok_nocache]
+}
+
+proc add_options_for_arm_v8_3a_complex_neon { flags } {
+    if { ! [check_effective_target_arm_v8_3a_complex_neon_ok] } {
+        return "$flags"
+    }
+    global et_arm_v8_3a_complex_neon_flags
+    return "$flags $et_arm_v8_3a_complex_neon_flags"
+}
+
+# Return 1 if the target supports executing AdvSIMD instructions from ARMv8.3
+# with the complex instruction extension, 0 otherwise.  The test is valid for
+# ARM and for AArch64.
+
+proc check_effective_target_arm_v8_3a_complex_neon_hw { } {
+    if { ![check_effective_target_arm_v8_3a_complex_neon_ok] } {
+        return 0;
+    }
+    return [check_runtime arm_v8_3a_complex_neon_hw_available {
+        #include "arm_neon.h"
+        int
+        main (void)
+        {
+
+          float32x2_t results = {-4.0,5.0};
+          float32x2_t a = {1.0,3.0};
+          float32x2_t b = {2.0,5.0};
+
+          #ifdef __ARM_ARCH_ISA_A64
+          asm ("fcadd %0.2s, %1.2s, %2.2s, #90"
+               : "=w"(results)
+               : "w"(a), "w"(b)
+               : /* No clobbers.  */);
+
+          #else
+          asm ("vcadd.f32 %P0, %P1, %P2, #90"
+               : "=w"(results)
+               : "w"(a), "w"(b)
+               : /* No clobbers.  */);
+          #endif
+
+          return (results[0] == 8 && results[1] == 24) ? 1 : 0;
+        }
+    } [add_options_for_arm_v8_3a_complex_neon ""]]
+}
+
+# Return 1 if the target plus current options supports a vector
+# complex addition with rotate of half and single float modes, 0 otherwise.
+#
+# This won't change for different subtargets so cache the result.
+
+foreach N {hf sf} {
+    eval [string map [list N $N] {
+        proc check_effective_target_vect_complex_rot_N { } {
+            return [check_cached_effective_target_indexed vect_complex_rot_N {
+            expr { [istarget aarch64*-*-*]
+                    || [istarget arm*-*-*] }}]
+        }
+    }]
+}
+
+# Return 1 if the target plus current options supports a vector
+# complex addition with rotate of double float modes, 0 otherwise.
+#
+# This won't change for different subtargets so cache the result.
+
+foreach N {df} {
+    eval [string map [list N $N] {
+        proc check_effective_target_vect_complex_rot_N { } {
+            return [check_cached_effective_target_indexed vect_complex_rot_N {
+            expr { [istarget aarch64*-*-*] }}]
+        }
+    }]
+}
+