| 1 | // RUN: %clang_cc1 -triple x86_64-windows -fsyntax-only -verify %s |
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| 2 | // RUN: %clang_cc1 -triple x86_64-linux -fsyntax-only -verify -emit-llvm-only -DCHECK_ALIASES %s |
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| 3 | // RUN: %clang_cc1 -triple x86_64-linux -fsyntax-only -verify -emit-llvm-only %s |
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| 4 | |
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| 5 | #if defined(_WIN32) |
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| 6 | void foo() {} |
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| 7 | void bar() __attribute__((ifunc("foo"))); |
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| 8 | //expected-warning@-1 {{unknown attribute 'ifunc' ignored}} |
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| 9 | |
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| 10 | #else |
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| 11 | #if defined(CHECK_ALIASES) |
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| 12 | void* f1_ifunc(); |
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| 13 | void f1() __attribute__((ifunc("f1_ifunc"))); |
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| 14 | //expected-error@-1 {{ifunc must point to a defined function}} |
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| 15 | |
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| 16 | void* f2_a() __attribute__((ifunc("f2_b"))); |
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| 17 | //expected-error@-1 {{ifunc definition is part of a cycle}} |
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| 18 | void* f2_b() __attribute__((ifunc("f2_a"))); |
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| 19 | //expected-error@-1 {{ifunc definition is part of a cycle}} |
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| 20 | |
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| 21 | void* f3_a() __attribute__((ifunc("f3_b"))); |
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| 22 | //expected-warning@-1 {{ifunc will always resolve to f3_c even if weak definition of f3_b is overridden}} |
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| 23 | void* f3_b() __attribute__((weak, alias("f3_c"))); |
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| 24 | void* f3_c() { return 0; } |
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| 25 | |
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| 26 | void f4_ifunc() {} |
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| 27 | void f4() __attribute__((ifunc("f4_ifunc"))); |
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| 28 | //expected-error@-1 {{ifunc resolver function must return a pointer}} |
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| 29 | |
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| 30 | #else |
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| 31 | void f1a() __asm("f1"); |
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| 32 | void f1a() {} |
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| 33 | //expected-note@-1 {{previous definition is here}} |
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| 34 | void f1() __attribute__((ifunc("f1_ifunc"))); |
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| 35 | //expected-error@-1 {{definition with same mangled name 'f1' as another definition}} |
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| 36 | void* f1_ifunc() { return 0; } |
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| 37 | |
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| 38 | void* f6_ifunc(int i); |
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| 39 | void __attribute__((ifunc("f6_ifunc"))) f6() {} |
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| 40 | //expected-error@-1 {{definition 'f6' cannot also be an ifunc}} |
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| 41 | |
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| 42 | #endif |
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| 43 | #endif |
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| 44 | |
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