| 1 | // RUN: %clang_cc1 -triple x86_64-linux-gnu -fsyntax-only -verify %s |
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| 2 | |
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| 3 | void __attribute__((target("sse4.2"))) no_default(void); |
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| 4 | void __attribute__((target("arch=sandybridge"))) no_default(void); |
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| 5 | |
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| 6 | void use1(void){ |
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| 7 | // expected-error@+1 {{no matching function for call to 'no_default'}} |
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| 8 | no_default(); |
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| 9 | } |
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| 10 | |
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| 11 | void __attribute__((target("sse4.2"))) has_def(void); |
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| 12 | void __attribute__((target("default"))) has_def(void); |
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| 13 | |
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| 14 | void use2(void){ |
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| 15 | // expected-error@+2 {{reference to overloaded function could not be resolved; did you mean to call it?}} |
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| 16 | // expected-note@-4 {{possible target for call}} |
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| 17 | +has_def; |
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| 18 | } |
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| 19 | |
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| 20 | int __attribute__((target("sse4.2"))) no_proto(); |
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| 21 | // expected-error@-1 {{multiversioned function must have a prototype}} |
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| 22 | // expected-note@+1 {{function multiversioning caused by this declaration}} |
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| 23 | int __attribute__((target("arch=sandybridge"))) no_proto(); |
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| 24 | |
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| 25 | // The following should all be legal, since they are just redeclarations. |
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| 26 | int __attribute__((target("sse4.2"))) redecl1(void); |
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| 27 | int __attribute__((target("sse4.2"))) redecl1(void) { return 1; } |
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| 28 | int __attribute__((target("arch=sandybridge"))) redecl1(void) { return 2; } |
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| 29 | |
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| 30 | int __attribute__((target("sse4.2"))) redecl2(void) { return 1; } |
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| 31 | int __attribute__((target("sse4.2"))) redecl2(void); |
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| 32 | int __attribute__((target("arch=sandybridge"))) redecl2(void) { return 2; } |
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| 33 | |
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| 34 | int __attribute__((target("sse4.2"))) redecl3(void) { return 0; } |
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| 35 | int __attribute__((target("arch=ivybridge"))) redecl3(void) { return 1; } |
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| 36 | int __attribute__((target("arch=sandybridge"))) redecl3(void); |
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| 37 | int __attribute__((target("arch=sandybridge"))) redecl3(void) { return 2; } |
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| 38 | |
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| 39 | int __attribute__((target("sse4.2"))) redecl4(void) { return 1; } |
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| 40 | int __attribute__((target("arch=sandybridge"))) redecl4(void) { return 2; } |
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| 41 | int __attribute__((target("arch=sandybridge"))) redecl4(void); |
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| 42 | |
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| 43 | int __attribute__((target("sse4.2"))) redef(void) { return 1; } |
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| 44 | int __attribute__((target("arch=ivybridge"))) redef(void) { return 1; } |
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| 45 | int __attribute__((target("arch=sandybridge"))) redef(void) { return 2; } |
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| 46 | // expected-error@+2 {{redefinition of 'redef'}} |
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| 47 | // expected-note@-2 {{previous definition is here}} |
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| 48 | int __attribute__((target("arch=sandybridge"))) redef(void) { return 2; } |
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| 49 | |
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| 50 | int __attribute__((target("default"))) redef2(void) { return 1;} |
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| 51 | // expected-error@+2 {{redefinition of 'redef2'}} |
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| 52 | // expected-note@-2 {{previous definition is here}} |
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| 53 | int __attribute__((target("default"))) redef2(void) { return 1;} |
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| 54 | |
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| 55 | int __attribute__((target("sse4.2"))) mv_after_use(void) { return 1; } |
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| 56 | int use3(void) { |
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| 57 | return mv_after_use(); |
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| 58 | } |
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| 59 | |
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| 60 | // expected-error@+1 {{function declaration cannot become a multiversioned function after first usage}} |
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| 61 | int __attribute__((target("arch=sandybridge"))) mv_after_use(void) { return 2; } |
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| 62 | |
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| 63 | int __attribute__((target("sse4.2,arch=sandybridge"))) mangle(void) { return 1; } |
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| 64 | //expected-error@+2 {{multiversioned function redeclarations require identical target attributes}} |
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| 65 | //expected-note@-2 {{previous declaration is here}} |
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| 66 | int __attribute__((target("arch=sandybridge,sse4.2"))) mangle(void) { return 2; } |
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| 67 | |
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| 68 | // allow this, since we want to treat the 1st one as fwd-decl of the sandybridge version. |
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| 69 | int prev_no_target(void); |
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| 70 | int __attribute__((target("arch=sandybridge"))) prev_no_target(void) { return 2; } |
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| 71 | int __attribute__((target("arch=ivybridge"))) prev_no_target(void) { return 2; } |
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| 72 | |
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| 73 | int __attribute__((target("arch=sandybridge"))) prev_no_target2(void); |
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| 74 | int prev_no_target2(void); |
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| 75 | // expected-error@-1 {{function declaration is missing 'target' attribute in a multiversioned function}} |
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| 76 | // expected-note@+1 {{function multiversioning caused by this declaration}} |
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| 77 | int __attribute__((target("arch=ivybridge"))) prev_no_target2(void); |
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| 78 | |
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| 79 | void __attribute__((target("sse4.2"))) addtl_attrs(void); |
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| 80 | //expected-error@+1 {{attribute 'target' multiversioning cannot be combined}} |
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| 81 | void __attribute__((used,target("arch=sandybridge"))) addtl_attrs(void); |
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| 82 | |
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| 83 | //expected-error@+1 {{attribute 'target' multiversioning cannot be combined}} |
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| 84 | void __attribute__((target("default"), used)) addtl_attrs2(void); |
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| 85 | |
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| 86 | //expected-error@+2 {{attribute 'target' multiversioning cannot be combined}} |
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| 87 | //expected-note@+2 {{function multiversioning caused by this declaration}} |
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| 88 | void __attribute__((used,target("sse4.2"))) addtl_attrs3(void); |
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| 89 | void __attribute__((target("arch=sandybridge"))) addtl_attrs3(void); |
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| 90 | |
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| 91 | void __attribute__((target("sse4.2"))) addtl_attrs4(void); |
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| 92 | void __attribute__((target("arch=sandybridge"))) addtl_attrs4(void); |
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| 93 | //expected-error@+1 {{attribute 'target' multiversioning cannot be combined}} |
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| 94 | void __attribute__((used,target("arch=ivybridge"))) addtl_attrs4(void); |
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| 95 | |
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| 96 | int __attribute__((target("sse4.2"))) diff_cc(void); |
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| 97 | // expected-error@+1 {{multiversioned function declaration has a different calling convention}} |
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| 98 | __vectorcall int __attribute__((target("arch=sandybridge"))) diff_cc(void); |
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| 99 | |
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| 100 | int __attribute__((target("sse4.2"))) diff_ret(void); |
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| 101 | // expected-error@+1 {{multiversioned function declaration has a different return type}} |
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| 102 | short __attribute__((target("arch=sandybridge"))) diff_ret(void); |
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| 103 | |
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