clang/test/CodeGen/attr-ifunc.cpp

   1 // RUN: %clang_cc1 -triple x86_64-linux -verify -emit-llvm-only %s
   2 // RUN: %clang_cc1 -triple x86_64-apple-macosx -verify -emit-llvm-only %s
   3 // RUN: %clang_cc1 -triple arm64-apple-macosx -verify -emit-llvm-only %s
   4 // RUN: not %clang_cc1 -triple x86_64-linux -emit-llvm-only -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck %s
   5 // RUN: not %clang_cc1 -triple x86_64-apple-macosx -emit-llvm-only -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck %s
   6 // RUN: not %clang_cc1 -triple arm64-apple-macosx -emit-llvm-only -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck %s
   7
   8 void *f1_ifunc(void) { return nullptr; }
   9 void f1(void) __attribute__((ifunc("f1_ifunc")));
  10 // expected-error@-1 {{ifunc must point to a defined function}}
  11 // expected-note@-2 {{must refer to its mangled name}}
  12 // expected-note@-3 {{function by that name is mangled as}}
  13 // CHECK: fix-it:"{{.*}}":{[[@LINE-4]]:30-[[@LINE-4]]:47}:"ifunc(\"_Z8f1_ifuncv\")"
  14
  15 void *f6_resolver_resolver(void) { return 0; }
  16 void *f6_resolver(void) __attribute__((ifunc("f6_resolver_resolver")));
  17 // expected-error@-1 {{ifunc must point to a defined function}}
  18 // expected-note@-2 {{must refer to its mangled name}}
  19 // expected-note@-3 {{function by that name is mangled as}}
  20 // CHECK: fix-it:"{{.*}}":{[[@LINE-4]]:40-[[@LINE-4]]:69}:"ifunc(\"_Z20f6_resolver_resolverv\")"
  21 void f6(void) __attribute__((ifunc("f6_resolver")));
  22 // expected-error@-1 {{ifunc must point to a defined function}}
  23 // expected-note@-2 {{must refer to its mangled name}}
  24 // expected-note@-3 {{function by that name is mangled as}}
  25 // CHECK: fix-it:"{{.*}}":{[[@LINE-4]]:30-[[@LINE-4]]:50}:"ifunc(\"_Z11f6_resolverv\")"
  26
  27 __attribute__((unused, ifunc("resolver"), deprecated("hahahaha, isn't C great?")))
  28 void func();
  29 // expected-error@-2 {{ifunc must point to a defined function}}
  30 // expected-note@-3 {{must refer to its mangled name}}
  31