clang/test/Sema/attr-target.c

   1 // RUN: %clang_cc1 -triple x86_64-linux-gnu  -fsyntax-only -verify -std=c2x %s
   2 // RUN: %clang_cc1 -triple aarch64-linux-gnu  -fsyntax-only -verify -std=c2x %s
   3 // RUN: %clang_cc1 -triple arm-linux-gnu  -fsyntax-only -verify -std=c2x %s
   4
   5 #ifdef __x86_64__
   6
   7 int __attribute__((target("avx,sse4.2,arch=ivybridge"))) foo(void) { return 4; }
   8 //expected-error@+1 {{'target' attribute takes one argument}}
   9 int __attribute__((target())) bar(void) { return 4; }
  10 // no warning, tune is supported for x86
  11 int __attribute__((target("tune=sandybridge"))) baz(void) { return 4; }
  12 //expected-warning@+1 {{unsupported 'fpmath=' in the 'target' attribute string; 'target' attribute ignored}}
  13 int __attribute__((target("fpmath=387"))) walrus(void) { return 4; }
  14 //expected-warning@+1 {{unknown CPU 'hiss' in the 'target' attribute string; 'target' attribute ignored}}
  15 int __attribute__((target("avx,sse4.2,arch=hiss"))) meow(void) {  return 4; }
  16 //expected-warning@+1 {{unsupported 'woof' in the 'target' attribute string; 'target' attribute ignored}}
  17 int __attribute__((target("woof"))) bark(void) {  return 4; }
  18 // no warning, same as saying 'nothing'.
  19 int __attribute__((target("arch="))) turtle(void) { return 4; }
  20 //expected-warning@+1 {{unknown CPU 'hiss' in the 'target' attribute string; 'target' attribute ignored}}
  21 int __attribute__((target("arch=hiss,arch=woof"))) pine_tree(void) { return 4; }
  22 //expected-warning@+1 {{duplicate 'arch=' in the 'target' attribute string; 'target' attribute ignored}}
  23 int __attribute__((target("arch=ivybridge,arch=haswell"))) oak_tree(void) { return 4; }
  24 //expected-warning@+1 {{unsupported 'branch-protection' in the 'target' attribute string; 'target' attribute ignored}}
  25 int __attribute__((target("branch-protection=none"))) birch_tree(void) { return 5; }
  26 //expected-warning@+1 {{unknown tune CPU 'hiss' in the 'target' attribute string; 'target' attribute ignored}}
  27 int __attribute__((target("tune=hiss,tune=woof"))) apple_tree(void) { return 4; }
  28
  29 #elifdef __aarch64__
  30
  31 int __attribute__((target("sve,arch=armv8-a"))) foo(void) { return 4; }
  32 //expected-error@+1 {{'target' attribute takes one argument}}
  33 int __attribute__((target())) bar(void) { return 4; }
  34 // no warning, tune is supported for aarch64
  35 int __attribute__((target("tune=cortex-a710"))) baz(void) { return 4; }
  36 //expected-warning@+1 {{unsupported 'fpmath=' in the 'target' attribute string; 'target' attribute ignored}}
  37 int __attribute__((target("fpmath=387"))) walrus(void) { return 4; }
  38 //expected-warning@+1 {{unknown CPU 'hiss' in the 'target' attribute string; 'target' attribute ignored}}
  39 int __attribute__((target("sve,cpu=hiss"))) meow(void) {  return 4; }
  40 // FIXME: We currently have no implementation of isValidFeatureName, so this is not noticed as an error.
  41 int __attribute__((target("woof"))) bark(void) {  return 4; }
  42 // FIXME: Same
  43 int __attribute__((target("arch=armv8-a+woof"))) buff(void) {  return 4; }
  44 // FIXME: Same
  45 int __attribute__((target("+noway"))) noway(void) {  return 4; }
  46 // no warning, same as saying 'nothing'.
  47 int __attribute__((target("arch="))) turtle(void) { return 4; }
  48 //expected-warning@+1 {{unknown CPU 'hiss' in the 'target' attribute string; 'target' attribute ignored}}
  49 int __attribute__((target("cpu=hiss,cpu=woof"))) pine_tree(void) { return 4; }
  50 //expected-warning@+1 {{duplicate 'arch=' in the 'target' attribute string; 'target' attribute ignored}}
  51 int __attribute__((target("arch=armv8.1-a,arch=armv8-a"))) oak_tree(void) { return 4; }
  52 //expected-warning@+1 {{duplicate 'cpu=' in the 'target' attribute string; 'target' attribute ignored}}
  53 int __attribute__((target("cpu=cortex-a710,cpu=neoverse-n2"))) apple_tree(void) { return 4; }
  54 //expected-warning@+1 {{duplicate 'tune=' in the 'target' attribute string; 'target' attribute ignored}}
  55 int __attribute__((target("tune=cortex-a710,tune=neoverse-n2"))) pear_tree(void) { return 4; }
  56 // no warning - branch-protection should work on aarch64
  57 int __attribute__((target("branch-protection=none"))) birch_tree(void) { return 5; }
  58
  59 #else
  60
  61 // tune is not supported by other targets.
  62 //expected-warning@+1 {{unsupported 'tune=' in the 'target' attribute string; 'target' attribute ignored}}
  63 int __attribute__((target("tune=hiss"))) baz(void) { return 4; }
  64
  65 #endif