46 lines · cpp
1// RUN: %clang_cc1 -triple x86_64-linux -verify -emit-llvm-only -DERR %s2// RUN: not %clang_cc1 -triple x86_64-linux -emit-llvm-only -fdiagnostics-parseable-fixits -DERR %s 2>&1 | FileCheck %s --check-prefix=FIXIT3// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm %s -o - | FileCheck %s4 5#ifdef ERR6void *f1_ifunc(void) { return nullptr; }7void f1(void) __attribute__((alias("f1_ifunc")));8// expected-error@-1 {{alias must point to a defined variable or function}}9// expected-note@-2 {{must refer to its mangled name}}10// expected-note@-3 {{function by that name is mangled as}}11// FIXIT: fix-it:"{{.*}}":{[[@LINE-4]]:30-[[@LINE-4]]:47}:"alias(\"_Z8f1_ifuncv\")"12 13void *f6_resolver_resolver(void) { return 0; }14void *f6_resolver(void) __attribute__((alias("f6_resolver_resolver")));15// expected-error@-1 {{alias must point to a defined variable or function}}16// expected-note@-2 {{must refer to its mangled name}}17// expected-note@-3 {{function by that name is mangled as}}18// FIXIT: fix-it:"{{.*}}":{[[@LINE-4]]:40-[[@LINE-4]]:69}:"alias(\"_Z20f6_resolver_resolverv\")"19void f6(void) __attribute__((alias("f6_resolver")));20// expected-error@-1 {{alias must point to a defined variable or function}}21// expected-note@-2 {{must refer to its mangled name}}22// expected-note@-3 {{function by that name is mangled as}}23// FIXIT: fix-it:"{{.*}}":{[[@LINE-4]]:30-[[@LINE-4]]:50}:"alias(\"_Z11f6_resolverv\")"24 25__attribute__((unused, alias("resolver"), deprecated("hahahaha, isn't C great?")))26void func();27// expected-error@-2 {{alias must point to a defined variable or function}}28// expected-note@-3 {{must refer to its mangled name}}29 30void *operator new(unsigned long) __attribute__((alias("A"))); // expected-error {{alias must point to a defined variable or function}} \31 // expected-note {{the function or variable specified in an alias must refer to its mangled name}}32#endif33 34// CHECK: @_ZN4libc4log2Ed ={{.*}} alias double (double), ptr @log235// CHECK: define{{.*}} @log2(36namespace libc { double log2(double x); }37extern "C" double log2(double);38namespace std { using ::log2; }39using std::log2;40 41namespace libc {42decltype(libc::log2) __log2_impl__ __asm__("log2");43decltype(libc::log2) log2 [[gnu::alias("log2")]];44double __log2_impl__(double x) { return x; }45}46