clang/test/Sema/aarch64-fp16-target.c

   1 // RUN: %clang_cc1 -triple aarch64-none-linux-gnu -target-feature +neon -fsyntax-only -verify -emit-llvm -o - %s
   2 // REQUIRES: aarch64-registered-target
   3
   4 // Test that functions with the correct target attributes can use the correct FP16 intrinsics.
   5
   6 #include <arm_fp16.h>
   7
   8 __attribute__((target("fullfp16")))
   9 void test_fullfp16(float16_t f16) {
  10   vabdh_f16(f16, f16);
  11 }
  12
  13 __attribute__((target("fp16")))
  14 void fp16(float16_t f16) {
  15   vabdh_f16(f16, f16);
  16 }
  17
  18 __attribute__((target("arch=armv8-a+fp16")))
  19 void test_fp16_arch(float16_t f16) {
  20     vabdh_f16(f16, f16);
  21 }
  22
  23 __attribute__((target("+fp16")))
  24 void test_plusfp16(float16_t f16) {
  25     vabdh_f16(f16, f16);
  26 }
  27
  28 void undefined(float16_t f16) {
  29   vabdh_f16(f16, f16); // expected-error {{'__builtin_neon_vabdh_f16' needs target feature fullfp16}}
  30 }