190 lines · c
1// RUN: %clang_cc1 -triple x86_64-linux-gnu -Wno-strict-prototypes -fsyntax-only -verify %s -Wnonnull2 3void __attribute__((cpu_specific(ivybridge))) no_default(void);4void __attribute__((cpu_specific(sandybridge))) no_default(void);5 6void use1(void){7 // Should be OK, default not a problem.8 no_default();9}10 11int __attribute__((cpu_specific(atom))) addr_of(void);12int __attribute__((cpu_specific(ivybridge))) addr_of(void);13int __attribute__((cpu_specific(ivybridge))) addr_of2(void);14 15void use2(void){16 addr_of();17 addr_of2();18 // expected-error@+1{{reference to multiversioned function could not be resolved; did you mean to call it with no arguments?}}19 (void)+addr_of;20 // expected-error@+1{{reference to multiversioned function could not be resolved; did you mean to call it with no arguments?}}21 (void)+addr_of2;22 // expected-error@+1{{reference to multiversioned function could not be resolved; did you mean to call it with no arguments?}}23 (void)&addr_of;24 // expected-error@+1{{reference to multiversioned function could not be resolved; did you mean to call it with no arguments?}}25 (void)&addr_of2;26}27 28// expected-error@+1 {{multiversioned function must have a prototype}}29int __attribute__((cpu_specific(atom))) no_proto();30 31int __attribute__((cpu_specific(atom))) redecl1(void);32int __attribute__((cpu_specific(atom))) redecl1(void) { return 1; }33 34int __attribute__((cpu_dispatch(atom))) redecl2(void);35int __attribute__((cpu_dispatch(atom))) redecl2(void) { }36// expected-error@+2 {{redefinition of 'redecl2'}}37// expected-note@-2 {{previous definition is here}}38int __attribute__((cpu_dispatch(atom))) redecl2(void) { }39 40int allow_fwd_decl(void);41int __attribute__((cpu_dispatch(atom))) allow_fwd_decl(void) {}42 43int allow_fwd_decl2(void);44void use_fwd_decl(void) {45 allow_fwd_decl2();46}47// expected-error@+2 {{function declaration cannot become a multiversioned function after first usage}}48// expected-note@-5 {{previous declaration is here}}49int __attribute__((cpu_dispatch(atom))) allow_fwd_decl2(void) {}50 51 52int __attribute__((cpu_specific(atom))) redecl4(void);53// expected-error@+1 {{function declaration is missing 'cpu_specific' or 'cpu_dispatch' attribute in a multiversioned function}}54int redecl4(void);55 56// expected-warning@+1 {{CPU list contains duplicate entries; attribute ignored}}57int __attribute__((cpu_specific(atom, atom))) dup_procs(void);58 59int __attribute__((cpu_specific(ivybridge, atom))) dup_procs2(void);60// expected-error@+2 {{multiple 'cpu_specific' functions cannot specify the same CPU: 'atom'}}61// expected-note@-2 {{previous declaration is here}}62int __attribute__((cpu_specific(atom))) dup_procs2(void);63 64int __attribute__((cpu_specific(ivybridge, atom))) dup_procs3(void);65// expected-error@+2 {{multiple 'cpu_specific' functions cannot specify the same CPU: 'ivybridge'}}66// expected-note@-2 {{previous declaration is here}}67int __attribute__((cpu_specific(atom, ivybridge))) dup_procs3(void);68 69int __attribute__((cpu_specific(atom))) redef(void) { return 1; }70// expected-error@+2 {{redefinition of 'redef'}}71// expected-note@-2 {{previous definition is here}}72int __attribute__((cpu_specific(atom))) redef(void) { return 2; }73 74int __attribute((cpu_dispatch(atom))) mult_dispatch(void) {}75// expected-error@+2 {{'cpu_dispatch' function redeclared with different CPUs}}76// expected-note@-2 {{previous declaration is here}}77int __attribute((cpu_dispatch(ivybridge))) mult_dispatch(void) {}78 79// expected-error@+1 {{'cpu_dispatch' attribute takes at least 1 argument}}80int __attribute((cpu_dispatch())) no_dispatch(void) {}81// expected-error@+1 {{'cpu_specific' attribute takes at least 1 argument}}82int __attribute((cpu_specific())) no_specific(void) {}83 84//expected-error@+1 {{attribute 'cpu_specific' multiversioning cannot be combined with attribute 'used'}}85void __attribute__((used,cpu_specific(sandybridge))) addtl_attrs(void);86 87void __attribute__((target("default"))) addtl_attrs2(void);88// expected-error@+2 {{multiversioning attributes cannot be combined}}89// expected-note@-2 {{previous declaration is here}}90void __attribute__((cpu_specific(sandybridge))) addtl_attrs2(void);91 92// expected-error@+2 {{'cpu_dispatch' and 'cpu_specific' attributes are not compatible}}93// expected-note@+1 {{conflicting attribute is here}}94void __attribute((cpu_specific(sandybridge), cpu_dispatch(atom, sandybridge)))95combine_attrs(void);96 97int __attribute__((cpu_dispatch(ivybridge))) diff_cc(void){}98// expected-error@+1 {{multiversioned function declaration has a different calling convention}}99__vectorcall int __attribute__((cpu_specific(sandybridge))) diff_cc(void);100 101// expected-warning@+2 {{body of cpu_dispatch function will be ignored}}102int __attribute__((cpu_dispatch(atom))) disp_with_body(void) {103 return 5;104}105 106// expected-error@+1 {{invalid option 'INVALID'}}107int __attribute__((cpu_specific(INVALID))) called_invalid_value(void){ return 1;}108// expected-warning@+3 {{attribute declaration must precede definition}}109// expected-note@-2 2 {{previous definition is here}}110// expected-error@+1 {{redefinition of}}111int __attribute__((cpu_specific(pentium_iii))) called_invalid_value(void){ return 2;}112int __attribute__((cpu_specific(pentium_4))) called_invalid_value(void){ return 3;}113 114int use3(void) {115 return called_invalid_value();116}117 118// expected-warning@+1 {{CPU list contains duplicate entries; attribute ignored}}119int __attribute__((cpu_dispatch(pentium_iii, pentium_iii_no_xmm_regs))) dupe_p3(void);120 121void __attribute__((cpu_specific(atom), nothrow, nonnull(1))) addtl_attrs(int*);122 123int __attribute__((cpu_specific(atom))) bad_overload1(void);124int __attribute__((cpu_specific(ivybridge))) bad_overload1(void);125// expected-error@+1 {{function declaration is missing 'cpu_specific' or 'cpu_dispatch' attribute in a multiversioned function}}126int bad_overload1(int);127 128int bad_overload2(int);129// expected-error@+2 {{conflicting types for 'bad_overload2'}}130// expected-note@-2 {{previous declaration is here}}131int __attribute__((cpu_specific(atom))) bad_overload2(void);132int __attribute__((cpu_specific(ivybridge))) bad_overload2(void);133 134int __attribute__((cpu_dispatch(generic))) bad_overload3(void);135int __attribute__((cpu_specific(ivybridge))) bad_overload3(void);136// expected-error@+1 {{function declaration is missing 'cpu_specific' or 'cpu_dispatch' attribute in a multiversioned function}}137int bad_overload3(int);138 139int bad_overload4(int);140// expected-error@+2 {{conflicting types for 'bad_overload4'}}141// expected-note@-2 {{previous declaration is here}}142int __attribute__((cpu_dispatch(generic))) bad_overload4(void);143int __attribute__((cpu_specific(ivybridge))) bad_overload4(void);144 145// expected-error@+1 {{attribute 'cpu_specific' multiversioning cannot be combined with attribute 'overloadable'}}146int __attribute__((__overloadable__)) __attribute__((cpu_specific(generic))) bad_overload5(void);147int __attribute__((cpu_specific(ivybridge))) bad_overload5(void);148 149int __attribute__((cpu_specific(generic))) bad_overload6(void);150// expected-error@+1 {{attribute 'cpu_specific' multiversioning cannot be combined with attribute 'overloadable'}}151int __attribute__((__overloadable__)) __attribute__((cpu_specific(ivybridge))) bad_overload6(void);152 153int __attribute__((cpu_specific(atom))) good_overload1(void);154int __attribute__((cpu_specific(ivybridge))) good_overload1(void);155int __attribute__((__overloadable__)) good_overload1(int);156 157int __attribute__((__overloadable__)) good_overload2(int);158int __attribute__((cpu_specific(atom))) good_overload2(void);159int __attribute__((cpu_specific(ivybridge))) good_overload2(void);160 161// expected-error@+1 {{attribute 'cpu_specific' multiversioning cannot be combined with attribute 'overloadable'}}162int __attribute__((__overloadable__)) __attribute__((cpu_specific(atom))) good_overload3(void);163// expected-error@+1 {{attribute 'cpu_specific' multiversioning cannot be combined with attribute 'overloadable'}}164int __attribute__((__overloadable__)) __attribute__((cpu_specific(ivybridge))) good_overload3(void);165int good_overload3(int);166 167int good_overload4(int);168// expected-error@+1 {{attribute 'cpu_specific' multiversioning cannot be combined with attribute 'overloadable'}}169int __attribute__((__overloadable__)) __attribute__((cpu_specific(atom))) good_overload4(void);170// expected-error@+1 {{attribute 'cpu_specific' multiversioning cannot be combined with attribute 'overloadable'}}171int __attribute__((__overloadable__)) __attribute__((cpu_specific(ivybridge))) good_overload4(void);172 173// expected-error@+1 {{attribute 'cpu_specific' multiversioning cannot be combined with attribute 'overloadable'}}174int __attribute__((__overloadable__)) __attribute__((cpu_specific(atom))) good_overload5(void);175// expected-error@+1 {{attribute 'cpu_specific' multiversioning cannot be combined with attribute 'overloadable'}}176int __attribute__((__overloadable__)) __attribute__((cpu_specific(ivybridge))) good_overload5(int);177 178int __attribute__((cpu_specific(atom))) good_overload6(void);179// expected-error@+1 {{attribute 'cpu_specific' multiversioning cannot be combined with attribute 'overloadable'}}180int __attribute__((__overloadable__)) __attribute__((cpu_specific(ivybridge))) good_overload6(int);181 182// expected-error@+1 {{attribute 'cpu_specific' multiversioning cannot be combined with attribute 'overloadable'}}183int __attribute__((__overloadable__)) __attribute__((cpu_specific(atom))) good_overload7(void);184int __attribute__((cpu_specific(ivybridge))) good_overload7(int);185 186// expected-error@+1 {{invalid option 'x86_64'}}187int __attribute__((cpu_specific(x86_64))) baseline(void);188// expected-error@+1 {{invalid option 'x86_64_v2'}}189int __attribute__((cpu_specific(x86_64_v2))) baseline(void);190