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 // RUN: %clang_cc1 -triple powerpc-linux-gnu  -fsyntax-only -verify -std=c2x %s
   5 // RUN: %clang_cc1 -triple ppc64le-linux-gnu  -fsyntax-only -verify -std=c2x %s
   6
   7 #ifdef __x86_64__
   8
   9 int __attribute__((target("avx,sse4.2,arch=ivybridge"))) foo(void) { return 4; }
  10 //expected-error@+1 {{'target' attribute takes one argument}}
  11 int __attribute__((target())) bar(void) { return 4; }
  12 // no warning, tune is supported for x86
  13 int __attribute__((target("tune=sandybridge"))) baz(void) { return 4; }
  14 //expected-warning@+1 {{unsupported 'fpmath=' in the 'target' attribute string; 'target' attribute ignored}}
  15 int __attribute__((target("fpmath=387"))) walrus(void) { return 4; }
  16 //expected-warning@+1 {{unknown CPU 'hiss' in the 'target' attribute string; 'target' attribute ignored}}
  17 int __attribute__((target("avx,sse4.2,arch=hiss"))) meow(void) {  return 4; }
  18 //expected-warning@+1 {{unsupported 'woof' in the 'target' attribute string; 'target' attribute ignored}}
  19 int __attribute__((target("woof"))) bark(void) {  return 4; }
  20 // no warning, same as saying 'nothing'.
  21 int __attribute__((target("arch="))) turtle(void) { return 4; }
  22 //expected-warning@+1 {{unknown CPU 'hiss' in the 'target' attribute string; 'target' attribute ignored}}
  23 int __attribute__((target("arch=hiss,arch=woof"))) pine_tree(void) { return 4; }
  24 //expected-warning@+1 {{duplicate 'arch=' in the 'target' attribute string; 'target' attribute ignored}}
  25 int __attribute__((target("arch=ivybridge,arch=haswell"))) oak_tree(void) { return 4; }
  26 //expected-warning@+1 {{unsupported 'branch-protection' in the 'target' attribute string; 'target' attribute ignored}}
  27 int __attribute__((target("branch-protection=none"))) birch_tree(void) { return 5; }
  28 //expected-warning@+1 {{unknown tune CPU 'hiss' in the 'target' attribute string; 'target' attribute ignored}}
  29 int __attribute__((target("tune=hiss,tune=woof"))) apple_tree(void) { return 4; }
  30
  31 //expected-warning@+1 {{unsupported 'x86-64' in the 'target' attribute string}}
  32 void __attribute__((target("x86-64"))) baseline(void) {}
  33 //expected-warning@+1 {{unsupported 'x86-64-v2' in the 'target' attribute string}}
  34 void __attribute__((target("x86-64-v2"))) v2(void) {}
  35
  36 #elifdef __aarch64__
  37
  38 int __attribute__((target("sve,arch=armv8-a"))) foo(void) { return 4; }
  39 //expected-error@+1 {{'target' attribute takes one argument}}
  40 int __attribute__((target())) bar(void) { return 4; }
  41 // no warning, tune is supported for aarch64
  42 int __attribute__((target("tune=cortex-a710"))) baz(void) { return 4; }
  43 //expected-warning@+1 {{unsupported 'fpmath=' in the 'target' attribute string; 'target' attribute ignored}}
  44 int __attribute__((target("fpmath=387"))) walrus(void) { return 4; }
  45 //expected-warning@+1 {{unknown CPU 'hiss' in the 'target' attribute string; 'target' attribute ignored}}
  46 int __attribute__((target("sve,cpu=hiss"))) meow(void) {  return 4; }
  47 // FIXME: We currently have no implementation of isValidFeatureName, so this is not noticed as an error.
  48 int __attribute__((target("woof"))) bark(void) {  return 4; }
  49 // FIXME: Same
  50 int __attribute__((target("arch=armv8-a+woof"))) buff(void) {  return 4; }
  51 // FIXME: Same
  52 int __attribute__((target("+noway"))) noway(void) {  return 4; }
  53 // no warning, same as saying 'nothing'.
  54 int __attribute__((target("arch="))) turtle(void) { return 4; }
  55 //expected-warning@+1 {{unknown CPU 'hiss' in the 'target' attribute string; 'target' attribute ignored}}
  56 int __attribute__((target("cpu=hiss,cpu=woof"))) pine_tree(void) { return 4; }
  57 //expected-warning@+1 {{duplicate 'arch=' in the 'target' attribute string; 'target' attribute ignored}}
  58 int __attribute__((target("arch=armv8.1-a,arch=armv8-a"))) oak_tree(void) { return 4; }
  59 //expected-warning@+1 {{duplicate 'cpu=' in the 'target' attribute string; 'target' attribute ignored}}
  60 int __attribute__((target("cpu=cortex-a710,cpu=neoverse-n2"))) apple_tree(void) { return 4; }
  61 //expected-warning@+1 {{duplicate 'tune=' in the 'target' attribute string; 'target' attribute ignored}}
  62 int __attribute__((target("tune=cortex-a710,tune=neoverse-n2"))) pear_tree(void) { return 4; }
  63 // no warning - branch-protection should work on aarch64
  64 int __attribute__((target("branch-protection=none"))) birch_tree(void) { return 5; }
  65
  66 #elifdef __powerpc__
  67
  68 int __attribute__((target("float128,arch=pwr9"))) foo(void) { return 4; }
  69 //expected-error@+1 {{'target' attribute takes one argument}}
  70 int __attribute__((target())) bar(void) { return 4; }
  71 // no warning, tune is supported for PPC
  72 int __attribute__((target("tune=pwr8"))) baz(void) { return 4; }
  73 //expected-warning@+1 {{unsupported 'fpmath=' in the 'target' attribute string; 'target' attribute ignored}}
  74 int __attribute__((target("fpmath=387"))) walrus(void) { return 4; }
  75 //expected-warning@+1 {{unknown CPU 'hiss' in the 'target' attribute string; 'target' attribute ignored}}
  76 int __attribute__((target("float128,arch=hiss"))) meow(void) {  return 4; }
  77 // no warning, same as saying 'nothing'.
  78 int __attribute__((target("arch="))) turtle(void) { return 4; }
  79 //expected-warning@+1 {{unknown CPU 'hiss' in the 'target' attribute string; 'target' attribute ignored}}
  80 int __attribute__((target("arch=hiss,arch=woof"))) pine_tree(void) { return 4; }
  81 //expected-warning@+1 {{duplicate 'arch=' in the 'target' attribute string; 'target' attribute ignored}}
  82 int __attribute__((target("arch=pwr9,arch=pwr10"))) oak_tree(void) { return 4; }
  83 //expected-warning@+1 {{unsupported 'branch-protection' in the 'target' attribute string; 'target' attribute ignored}}
  84 int __attribute__((target("branch-protection=none"))) birch_tree(void) { return 5; }
  85 //expected-warning@+1 {{unknown tune CPU 'hiss' in the 'target' attribute string; 'target' attribute ignored}}
  86 int __attribute__((target("tune=hiss,tune=woof"))) apple_tree(void) { return 4; }
  87
  88 #else
  89
  90 // tune is not supported by other targets.
  91 //expected-warning@+1 {{unsupported 'tune=' in the 'target' attribute string; 'target' attribute ignored}}
  92 int __attribute__((target("tune=hiss"))) baz(void) { return 4; }
  93
  94 #endif