clang/test/Sema/attr-target-version.c

   1 // RUN: %clang_cc1 -triple aarch64-linux-gnu  -fsyntax-only -verify %s
   2
   3 int __attribute__((target_version("crc"))) dup(void) { return 3; }
   4 int __attribute__((target_version("default"))) dup(void) { return 1; }
   5 //expected-error@+2 {{redefinition of 'dup'}}
   6 //expected-note@-2 {{previous definition is here}}
   7 int __attribute__((target_version("default"))) dup(void) { return 2; }
   8
   9 int __attribute__((target_version("default"))) dup1(void) { return 1; }
  10 //expected-error@+2 {{redefinition of 'dup1'}}
  11 //expected-note@-2 {{previous definition is here}}
  12 int dup1(void) { return 2; }
  13
  14 int __attribute__((target_version("aes"))) foo(void) { return 1; }
  15 //expected-note@+1 {{previous definition is here}}
  16 int __attribute__((target_version("default"))) foo(void) { return 2; }
  17
  18 //expected-note@+1 {{previous definition is here}}
  19 int __attribute__((target_version("sha3 + pmull "))) foo(void) { return 1; }
  20 //expected-note@-1 {{previous definition is here}}
  21
  22 //expected-error@+1 {{redefinition of 'foo'}}
  23 int __attribute__((target("dotprod"))) foo(void) { return -1; }
  24 //expected-warning@-1 {{attribute declaration must precede definition}}
  25
  26 //expected-error@+1 {{redefinition of 'foo'}}
  27 int foo(void) { return 2; }
  28
  29 //expected-note@+1 {{previous definition is here}}
  30 __attribute__ ((target("bf16,sve,sve2,dotprod"))) int func(void) { return 1; }
  31 //expected-error@+1 {{redefinition of 'func'}}
  32 __attribute__ ((target("default"))) int func(void) { return 0; }
  33
  34 //expected-note@+1 {{previous declaration is here}}
  35 void __attribute__((target_version("bti+flagm2"))) one(void) {}
  36 //expected-error@+1 {{multiversioned function redeclarations require identical target attributes}}
  37 void __attribute__((target_version("flagm2+bti"))) one(void) {}
  38
  39 void __attribute__((target_version("ssbs+sha1"))) two(void) {}
  40 void __attribute__((target_version("ssbs+fp16fml"))) two(void) {}
  41
  42 //expected-error@+1 {{'main' cannot be a multiversioned function}}
  43 int __attribute__((target_version("lse"))) main(void) { return 1; }
  44
  45 //expected-note@+1 {{previous definition is here}}
  46 int hoo(void) { return 1; }
  47 //expected-note@-1 {{previous definition is here}}
  48 //expected-warning@+2 {{attribute declaration must precede definition}}
  49 //expected-error@+1 {{redefinition of 'hoo'}}
  50 int __attribute__((target_version("dit"))) hoo(void) { return 2; }
  51
  52 //expected-warning@+1 {{unsupported '' in the 'target_version' attribute string; 'target_version' attribute ignored}}
  53 int __attribute__((target_version(""))) unsup1(void) { return 1; }
  54 //expected-warning@+1 {{unsupported 'crc32' in the 'target_version' attribute string; 'target_version' attribute ignored}}
  55 void __attribute__((target_version("crc32"))) unsup2(void) {}
  56
  57 void __attribute__((target_version("default+fp16"))) koo(void) {}
  58 void __attribute__((target_version("default+default+default"))) loo(void) {}
  59 void __attribute__((target_version("rdm+rng+crc"))) redef(void) {}
  60 //expected-error@+2 {{redefinition of 'redef'}}
  61 //expected-note@-2 {{previous definition is here}}
  62 void __attribute__((target_version("rdm+rng+crc"))) redef(void) {}
  63
  64 int __attribute__((target_version("sm4"))) def(void);
  65 void __attribute__((target_version("dit"))) nodef(void);
  66 void __attribute__((target_version("ls64"))) nodef(void);
  67 void __attribute__((target_version("aes"))) ovl(void);
  68 void __attribute__((target_version("default"))) ovl(void);
  69 int bar() {
  70   // expected-error@+2 {{reference to overloaded function could not be resolved; did you mean to call it?}}
  71   // expected-note@-3 {{possible target for call}}
  72   ovl++;
  73   // expected-error@+1 {{no matching function for call to 'nodef'}}
  74   nodef();
  75   return def();
  76 }
  77 // expected-error@+1 {{function declaration cannot become a multiversioned function after first usage}}
  78 int __attribute__((target_version("sha1"))) def(void) { return 1; }
  79
  80 int __attribute__((target_version("sve"))) prot();
  81 // expected-error@-1 {{multiversioned function must have a prototype}}
  82 // expected-note@+1 {{function multiversioning caused by this declaration}}
  83 int __attribute__((target_version("fcma"))) prot();
  84
  85 int __attribute__((target_version("pmull"))) rtype(int);
  86 // expected-error@+1 {{multiversioned function declaration has a different return type}}
  87 float __attribute__((target_version("rdm"))) rtype(int);
  88
  89 int __attribute__((target_version("sha2"))) combine(void) { return 1; }
  90 // expected-error@+1 {{multiversioned function declaration has a different calling convention}}
  91 int __attribute__((aarch64_vector_pcs, target_version("sha3"))) combine(void) { return 2; }
  92
  93 int __attribute__((target_version("fp+aes+pmull+rcpc"))) unspec_args() { return -1; }
  94 // expected-error@+1 {{multiversioned function must have a prototype}}
  95 int __attribute__((target_version("default"))) unspec_args() { return 0; }
  96 int cargs() { return unspec_args(); }