clang/test/CodeGen/AArch64/sysregs-target.c

   1 // RUN: %clang_cc1 -triple aarch64-none-linux-gnu -target-feature +v8a -verify -emit-llvm -o - %s
   2 // RUN: %clang_cc1 -triple aarch64-none-linux-gnu -target-feature +d128 -verify=d128 -emit-llvm -o - %s
   3
   4 // REQUIRES: aarch64-registered-target
   5
   6 // Test that functions with the correct target attributes can use the correct
   7 // system-register intriniscs.
   8
   9 // All the calls below are valid if you have -target-feature +d128
  10 // d128-no-diagnostics
  11
  12 #include <arm_acle.h>
  13
  14 void anytarget(void) {
  15   unsigned x = __arm_rsr("1:2:3:4:5");
  16   __arm_wsr("1:2:3:4:5", x);
  17   unsigned long y = __arm_rsr64("1:2:3:4:5");
  18   __arm_wsr64("1:2:3:4:5", y);
  19   void *p = __arm_rsrp("1:2:3:4:5");
  20   __arm_wsrp("1:2:3:4:5", p);
  21 }
  22
  23 __attribute__((target("d128")))
  24 void d128target(void) {
  25   __uint128_t x = __arm_rsr128("1:2:3:4:5");
  26   __arm_wsr128("1:2:3:4:5", x);
  27 }
  28
  29 void notd128target(void) {
  30   __uint128_t x = __arm_rsr128("1:2:3:4:5"); // expected-error {{needs target feature d128}}
  31   __arm_wsr128("1:2:3:4:5", x); // expected-error {{needs target feature d128}}
  32 }