// RUN: %clang_cc1 -target-feature +f64mm -triple aarch64-none-linux-gnu -target-feature +sve -target-feature +bf16 -fallow-half-arguments-and-returns -S -O1 -Werror -Wall -emit-llvm -o - %s | FileCheck %s
// RUN: %clang_cc1 -target-feature +f64mm -DSVE_OVERLOADED_FORMS -triple aarch64-none-linux-gnu -target-feature +sve -target-feature +bf16 -fallow-half-arguments-and-returns -S -O1 -Werror -Wall -emit-llvm -o - %s | FileCheck %s
// RUN: %clang_cc1 -triple aarch64-none-linux-gnu -target-feature +sve -target-feature +bf16 -fallow-half-arguments-and-returns -fsyntax-only -verify -verify-ignore-unexpected=error -verify-ignore-unexpected=note %s

#include <arm_sve.h>

#ifdef SVE_OVERLOADED_FORMS
// A simple used,unused... macro, long enough to represent any SVE builtin.
#define SVE_ACLE_FUNC(A1, A2_UNUSED, A3, A4_UNUSED) A1##A3
#else
#define SVE_ACLE_FUNC(A1, A2, A3, A4) A1##A2##A3##A4
#endif

svbfloat16_t test_svtrn2_bf16(svbfloat16_t op1, svbfloat16_t op2) {
  // CHECK-LABEL: test_svtrn2_bf16
  // CHECK: %[[INTRINSIC:.*]] = call <vscale x 8 x bfloat> @llvm.aarch64.sve.trn2q.nxv8bf16(<vscale x 8 x bfloat> %op1, <vscale x 8 x bfloat> %op2)
  // CHECK: ret <vscale x 8 x bfloat> %[[INTRINSIC]]
  // expected-warning@+1 {{implicit declaration of function 'svtrn2q_bf16'}}
  return SVE_ACLE_FUNC(svtrn2q, _bf16, , )(op1, op2);
}
