141 lines · c
1// RUN: %clang_cc1 -triple x86_64-linux-gnu -fsyntax-only -verify %s2 3// expected-error@+1 {{'target_clones' multiversioning requires a default target}}4void __attribute__((target_clones("sse4.2", "arch=sandybridge")))5no_default(void);6 7// expected-error@+2 {{'target_clones' and 'target' attributes are not compatible}}8// expected-note@+1 {{conflicting attribute is here}}9void __attribute__((target("sse4.2"), target_clones("arch=sandybridge")))10ignored_attr(void);11// expected-error@+2 {{'target' and 'target_clones' attributes are not compatible}}12// expected-note@+1 {{conflicting attribute is here}}13void __attribute__((target_clones("arch=sandybridge,default"), target("sse4.2")))14ignored_attr2(void);15 16int redecl(void);17int __attribute__((target_clones("sse4.2", "default"))) redecl(void) { return 1; }18 19int __attribute__((target_clones("sse4.2", "default"))) redecl2(void);20int __attribute__((target_clones("sse4.2", "default"))) redecl2(void) { return 1; }21 22int __attribute__((target_clones("sse4.2", "default"))) redecl3(void);23int redecl3(void);24 25int __attribute__((target_clones("sse4.2", "arch=atom", "default"))) redecl4(void);26// expected-error@+3 {{'target_clones' attribute does not match previous declaration}}27// expected-note@-2 {{previous declaration is here}}28int __attribute__((target_clones("sse4.2", "arch=sandybridge", "default")))29redecl4(void) { return 1; }30 31int __attribute__((target_clones("sse4.2", "default"))) redecl5(void);32int redecl5(void) { return 1; }33 34int redecl6(void);35int __attribute__((target_clones("sse4.2", "default"))) redecl6(void) { return 1; }36 37int __attribute__((target_clones("sse4.2", "default"))) redecl7(void);38// expected-error@+2 {{multiversioning attributes cannot be combined}}39// expected-note@-2 {{previous declaration is here}}40int __attribute__((target("sse4.2"))) redecl7(void) { return 1; }41 42int __attribute__((target("sse4.2"))) redef2(void) { return 1; }43// expected-error@+2 {{multiversioning attributes cannot be combined}}44// expected-note@-2 {{previous declaration is here}}45int __attribute__((target_clones("sse4.2", "default"))) redef2(void) { return 1; }46 47int __attribute__((target_clones("sse4.2,default"))) redef3(void) { return 1; }48// expected-error@+2 {{redefinition of 'redef3'}}49// expected-note@-2 {{previous definition is here}}50int __attribute__((target_clones("sse4.2,default"))) redef3(void) { return 1; }51 52int __attribute__((target_clones("sse4.2,default"))) redef4(void) { return 1; }53// expected-error@+2 {{redefinition of 'redef4'}}54// expected-note@-2 {{previous definition is here}}55int __attribute__((target_clones("sse4.2,default"))) redef4(void) { return 1; }56 57// Duplicates are allowed, however they alter name mangling.58// expected-warning@+2 {{mixing 'target_clones' specifier mechanisms is permitted for GCC compatibility}}59// expected-warning@+1 2 {{version list contains duplicate entries}}60int __attribute__((target_clones("arch=atom,arch=atom", "arch=atom,default")))61dupes(void) { return 1; }62 63// expected-warning@+1 {{unsupported '' in the 'target_clones' attribute string;}}64void __attribute__((target_clones("")))65empty_target_1(void);66// expected-warning@+1 {{unsupported '' in the 'target_clones' attribute string;}}67void __attribute__((target_clones(",default")))68empty_target_2(void);69// expected-warning@+1 {{unsupported '' in the 'target_clones' attribute string;}}70void __attribute__((target_clones("default,")))71empty_target_3(void);72// expected-warning@+1 {{unsupported '' in the 'target_clones' attribute string;}}73void __attribute__((target_clones("default, ,avx2")))74empty_target_4(void);75 76// expected-warning@+1 {{unsupported '' in the 'target_clones' attribute string;}}77void __attribute__((target_clones("default,avx2", "")))78empty_target_5(void);79 80// expected-warning@+1 {{version list contains duplicate entries}}81void __attribute__((target_clones("default", "default")))82dupe_default(void);83 84// expected-warning@+1 {{version list contains duplicate entries}}85void __attribute__((target_clones("avx2,avx2,default")))86dupe_normal(void);87 88// expected-error@+2 {{attribute 'target_clones' cannot appear more than once on a declaration}}89// expected-note@+1 {{conflicting attribute is here}}90void __attribute__((target_clones("avx2,default"), target_clones("arch=atom,default")))91dupe_normal2(void);92 93int mv_after_use(void);94int useage(void) {95 return mv_after_use();96}97// expected-error@+1 {{function declaration cannot become a multiversioned function after first usage}}98int __attribute__((target_clones("sse4.2", "default"))) mv_after_use(void) { return 1; }99 100void bad_overload1(void) __attribute__((target_clones("mmx", "sse4.2", "default")));101// expected-error@+2 {{conflicting types for 'bad_overload1'}}102// expected-note@-2 {{previous declaration is here}}103void bad_overload1(int p) {}104 105void bad_overload2(int p) {}106// expected-error@+2 {{conflicting types for 'bad_overload2'}}107// expected-note@-2 {{previous definition is here}}108void bad_overload2(void) __attribute__((target_clones("mmx", "sse4.2", "default")));109 110void bad_overload3(void) __attribute__((target_clones("mmx", "sse4.2", "default")));111// expected-error@+2 {{conflicting types for 'bad_overload3'}}112// expected-note@-2 {{previous declaration is here}}113void bad_overload3(int) __attribute__((target_clones("mmx", "sse4.2", "default")));114 115void good_overload1(void) __attribute__((target_clones("mmx", "sse4.2", "default")));116void __attribute__((__overloadable__)) good_overload1(int p) {}117 118// expected-error@+1 {{attribute 'target_clones' multiversioning cannot be combined with attribute 'overloadable'}}119void __attribute__((__overloadable__)) good_overload2(void) __attribute__((target_clones("mmx", "sse4.2", "default")));120void good_overload2(int p) {}121 122// expected-error@+1 {{attribute 'target_clones' multiversioning cannot be combined with attribute 'overloadable'}}123void __attribute__((__overloadable__)) good_overload3(void) __attribute__((target_clones("mmx", "sse4.2", "default")));124// expected-error@+1 {{attribute 'target_clones' multiversioning cannot be combined with attribute 'overloadable'}}125void __attribute__((__overloadable__)) good_overload3(int) __attribute__((target_clones("mmx", "sse4.2", "default")));126 127void good_overload4(void) __attribute__((target_clones("mmx", "sse4.2", "default")));128// expected-error@+1 {{attribute 'target_clones' multiversioning cannot be combined with attribute 'overloadable'}}129void __attribute__((__overloadable__)) good_overload4(int) __attribute__((target_clones("mmx", "sse4.2", "default")));130 131// expected-error@+1 {{attribute 'target_clones' multiversioning cannot be combined with attribute 'overloadable'}}132void __attribute__((__overloadable__)) good_overload5(void) __attribute__((target_clones("mmx", "sse4.2", "default")));133void good_overload5(int) __attribute__((target_clones("mmx", "sse4.2", "default")));134 135void good_isa_level(int) __attribute__((target_clones("default", "arch=x86-64", "arch=x86-64-v2", "arch=x86-64-v3", "arch=x86-64-v4")));136// expected-warning@+1 {{unsupported CPU 'x86-64-v5' in the 'target_clones' attribute string; 'target_clones' attribute ignored}}137void bad_isa_level(int) __attribute__((target_clones("default", "arch=x86-64-v5")));138 139// expected-warning@+1 {{unsupported 'sha' in the 'target_clones' attribute string; 'target_clones' attribute ignored}}140void bad_feature(void) __attribute__((target_clones("default", "sse4.2", "sha")));141