clang/test/SemaCXX/attr-riscv-rvv-vector-bits.cpp

   1 // RUN: %clang_cc1 -triple riscv64-none-linux-gnu -target-feature +zve64x -ffreestanding -fsyntax-only -verify -std=c++11 -mvscale-min=4 -mvscale-max=4 -Wconversion %s
   2 // expected-no-diagnostics
   3
   4 #include <stdint.h>
   5
   6 typedef __rvv_int8m1_t vint8m1_t;
   7 typedef vint8m1_t fixed_int8m1_t __attribute__((riscv_rvv_vector_bits(__riscv_v_fixed_vlen)));
   8 typedef int8_t gnu_int8m1_t __attribute__((vector_size(__riscv_v_fixed_vlen / 8)));
   9
  10 template<typename T> struct S { T var; };
  11
  12 S<fixed_int8m1_t> s;
  13
  14 // Test implicit casts between VLA and VLS vectors
  15 vint8m1_t to_vint8m1_t(fixed_int8m1_t x) { return x; }
  16 fixed_int8m1_t from_vint8m1_t(vint8m1_t x) { return x; }
  17
  18 // Test implicit casts between GNU and VLA vectors
  19 vint8m1_t to_vint8m1_t__from_gnu_int8m1_t(gnu_int8m1_t x) { return x; }
  20 gnu_int8m1_t from_vint8m1_t__to_gnu_int8m1_t(vint8m1_t x) { return x; }
  21
  22 // Test implicit casts between GNU and VLS vectors
  23 fixed_int8m1_t to_fixed_int8m1_t__from_gnu_int8m1_t(gnu_int8m1_t x) { return x; }
  24 gnu_int8m1_t from_fixed_int8m1_t__to_gnu_int8m1_t(fixed_int8m1_t x) { return x; }