77 lines · c
1// RUN: %clang_cc1 -fms-extensions -triple i686-pc-windows-msvc -Wcast-calling-convention -DMSVC -Wno-pointer-bool-conversion -verify -x c %s2// RUN: %clang_cc1 -fms-extensions -triple i686-pc-windows-msvc -Wcast-calling-convention -DMSVC -Wno-pointer-bool-conversion -verify -x c++ %s3// RUN: %clang_cc1 -fms-extensions -triple i686-pc-windows-msvc -Wcast-calling-convention -DMSVC -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck %s --check-prefix=MSFIXIT4// RUN: %clang_cc1 -triple i686-pc-windows-gnu -Wcast-calling-convention -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck %s --check-prefix=GNUFIXIT5 6// expected-note@+1 {{consider defining 'mismatched_before_winapi' with the 'stdcall' calling convention}}7void mismatched_before_winapi(int x) {}8 9#ifdef MSVC10#define WINAPI __stdcall11#else12#define WINAPI __attribute__((stdcall))13#endif14 15// expected-note@+1 3 {{consider defining 'mismatched' with the 'stdcall' calling convention}}16void mismatched(int x) {}17 18// expected-note@+1 {{consider defining 'mismatched_declaration' with the 'stdcall' calling convention}}19void mismatched_declaration(int x);20 21// expected-note@+1 {{consider defining 'suggest_fix_first_redecl' with the 'stdcall' calling convention}}22void suggest_fix_first_redecl(int x);23void suggest_fix_first_redecl(int x);24 25typedef void (WINAPI *callback_t)(int);26void take_callback(callback_t callback);27 28void WINAPI mismatched_stdcall(int x) {}29 30void take_opaque_fn(void (*callback)(int));31 32int main(void) {33 // expected-warning@+1 {{cast between incompatible calling conventions 'cdecl' and 'stdcall'}}34 take_callback((callback_t)mismatched);35 36 // expected-warning@+1 {{cast between incompatible calling conventions 'cdecl' and 'stdcall'}}37 callback_t callback = (callback_t)mismatched; // warns38 (void)callback;39 40 // expected-warning@+1 {{cast between incompatible calling conventions 'cdecl' and 'stdcall'}}41 callback = (callback_t)&mismatched; // warns42 43 // No warning, just to show we don't drill through other kinds of unary operators.44 callback = (callback_t)!mismatched;45 46 // expected-warning@+1 {{cast between incompatible calling conventions 'cdecl' and 'stdcall'}}47 callback = (callback_t)&mismatched_before_winapi; // warns48 49 // Probably a bug, but we don't warn.50 void (*callback2)(int) = mismatched;51 take_callback((callback_t)callback2);52 53 // Another way to suppress the warning.54 take_callback((callback_t)(void*)mismatched);55 56 // Warn on declarations as well as definitions.57 // expected-warning@+1 {{cast between incompatible calling conventions 'cdecl' and 'stdcall'}}58 take_callback((callback_t)mismatched_declaration);59 // expected-warning@+1 {{cast between incompatible calling conventions 'cdecl' and 'stdcall'}}60 take_callback((callback_t)suggest_fix_first_redecl);61 62 // Don't warn, because we're casting from stdcall to cdecl. Usually that means63 // the programmer is rinsing the function pointer through some kind of opaque64 // API.65 take_opaque_fn((void (*)(int))mismatched_stdcall);66}67 68// MSFIXIT: fix-it:"{{.*}}callingconv-cast.c":{16:6-16:6}:"WINAPI "69// MSFIXIT: fix-it:"{{.*}}callingconv-cast.c":{16:6-16:6}:"WINAPI "70// MSFIXIT: fix-it:"{{.*}}callingconv-cast.c":{16:6-16:6}:"WINAPI "71// MSFIXIT: fix-it:"{{.*}}callingconv-cast.c":{7:6-7:6}:"__stdcall "72 73// GNUFIXIT: fix-it:"{{.*}}callingconv-cast.c":{16:6-16:6}:"WINAPI "74// GNUFIXIT: fix-it:"{{.*}}callingconv-cast.c":{16:6-16:6}:"WINAPI "75// GNUFIXIT: fix-it:"{{.*}}callingconv-cast.c":{16:6-16:6}:"WINAPI "76// GNUFIXIT: fix-it:"{{.*}}callingconv-cast.c":{7:6-7:6}:"__attribute__((stdcall)) "77