From be7793ef912b7aac0e548f528e54aaf5ddd40a4e Mon Sep 17 00:00:00 2001
From: Jiong Wang <jiong.wang@arm.com>
Date: Wed, 6 Jul 2016 14:43:31 +0100
Subject: [PATCH 11/14] [11/14] TESTSUITE selector for ARMv8.2-A FP16 extension
---
gcc/testsuite/lib/target-supports.exp | 50 ++++++++++++++++++++++++++---------
1 file changed, 38 insertions(+), 12 deletions(-)
@@ -2905,7 +2905,7 @@ proc add_options_for_arm_v8_1a_neon { flags } {
}
# Add the options needed for ARMv8.2 with the scalar FP16 extension.
-# Also adds the ARMv8 FP options for ARM.
+# Also adds the ARMv8 FP options for ARM and for AArch64.
proc add_options_for_arm_v8_2a_fp16_scalar { flags } {
if { ! [check_effective_target_arm_v8_2a_fp16_scalar_ok] } {
@@ -2916,7 +2916,7 @@ proc add_options_for_arm_v8_2a_fp16_scalar { flags } {
}
# Add the options needed for ARMv8.2 with the FP16 extension. Also adds
-# the ARMv8 NEON options for ARM.
+# the ARMv8 NEON options for ARM and for AArch64.
proc add_options_for_arm_v8_2a_fp16_neon { flags } {
if { ! [check_effective_target_arm_v8_2a_fp16_neon_ok] } {
@@ -3487,14 +3487,14 @@ proc check_effective_target_arm_v8_1a_neon_ok { } {
}
# Return 1 if the target supports ARMv8.2 scalar FP16 arithmetic
-# instructions, 0 otherwise. The test is valid for ARM. Record the
-# command line options needed.
+# instructions, 0 otherwise. The test is valid for ARM and for AArch64.
+# Record the command line options needed.
proc check_effective_target_arm_v8_2a_fp16_scalar_ok_nocache { } {
global et_arm_v8_2a_fp16_scalar_flags
set et_arm_v8_2a_fp16_scalar_flags ""
- if { ![istarget arm*-*-*] } {
+ if { ![istarget arm*-*-*] && ![istarget aarch64*-*-*] } {
return 0;
}
@@ -3522,14 +3522,14 @@ proc check_effective_target_arm_v8_2a_fp16_scalar_ok { } {
}
# Return 1 if the target supports ARMv8.2 Adv.SIMD FP16 arithmetic
-# instructions, 0 otherwise. The test is valid for ARM. Record the
-# command line options needed.
+# instructions, 0 otherwise. The test is valid for ARM and for AArch64.
+# Record the command line options needed.
proc check_effective_target_arm_v8_2a_fp16_neon_ok_nocache { } {
global et_arm_v8_2a_fp16_neon_flags
set et_arm_v8_2a_fp16_neon_flags ""
- if { ![istarget arm*-*-*] } {
+ if { ![istarget arm*-*-*] && ![istarget aarch64*-*-*] } {
return 0;
}
@@ -3613,7 +3613,8 @@ proc check_effective_target_arm_v8_1a_neon_hw { } {
}
# Return 1 if the target supports executing floating point instructions from
-# ARMv8.2 with the FP16 extension, 0 otherwise. The test is valid for ARM.
+# ARMv8.2 with the FP16 extension, 0 otherwise. The test is valid for ARM and
+# for AArch64.
proc check_effective_target_arm_v8_2a_fp16_scalar_hw { } {
if { ![check_effective_target_arm_v8_2a_fp16_scalar_ok] } {
@@ -3626,19 +3627,30 @@ proc check_effective_target_arm_v8_2a_fp16_scalar_hw { } {
__fp16 a = 1.0;
__fp16 result;
+ #ifdef __ARM_ARCH_ISA_A64
+
+ asm ("fabs %h0, %h1"
+ : "=w"(result)
+ : "w"(a)
+ : /* No clobbers. */);
+
+ #else
+
asm ("vabs.f16 %0, %1"
: "=w"(result)
: "w"(a)
: /* No clobbers. */);
+ #endif
+
return (result == 1.0) ? 0 : 1;
}
} [add_options_for_arm_v8_2a_fp16_scalar ""]]
}
-# Return 1 if the target supports executing instructions Adv.SIMD
-# instructions from ARMv8.2 with the FP16 extension, 0 otherwise. The
-# test is valid for ARM.
+# Return 1 if the target supports executing Adv.SIMD instructions from ARMv8.2
+# with the FP16 extension, 0 otherwise. The test is valid for ARM and for
+# AArch64.
proc check_effective_target_arm_v8_2a_fp16_neon_hw { } {
if { ![check_effective_target_arm_v8_2a_fp16_neon_ok] } {
@@ -3648,6 +3660,18 @@ proc check_effective_target_arm_v8_2a_fp16_neon_hw { } {
int
main (void)
{
+ #ifdef __ARM_ARCH_ISA_A64
+
+ __Float16x4_t a = {1.0, -1.0, 1.0, -1.0};
+ __Float16x4_t result;
+
+ asm ("fabs %0.4h, %1.4h"
+ : "=w"(result)
+ : "w"(a)
+ : /* No clobbers. */);
+
+ #else
+
__simd64_float16_t a = {1.0, -1.0, 1.0, -1.0};
__simd64_float16_t result;
@@ -3656,6 +3680,8 @@ proc check_effective_target_arm_v8_2a_fp16_neon_hw { } {
: "w"(a)
: /* No clobbers. */);
+ #endif
+
return (result[0] == 1.0) ? 0 : 1;
}
} [add_options_for_arm_v8_2a_fp16_neon ""]]
--
2.5.0