1 // Check that implicit modules builds give correct diagnostics, even when
2 // reusing a module built with strong -Werror flags.
3 //
4 // Clear the caches.
5 // RUN: rm -rf %t.cache %t-pragma.cache
6 //
7 // Build with -Werror, then with -W, and then with neither.
8 // RUN: not %clang_cc1 -triple x86_64-apple-darwin16 -fsyntax-only -fmodules \
9 // RUN:   -Werror=shorten-64-to-32 \
10 // RUN:   -I%S/Inputs/implicit-built-Werror-using-W -fimplicit-module-maps \
11 // RUN:   -fmodules-cache-path=%t.cache -x c++ %s 2>&1 \
12 // RUN: | FileCheck %s -check-prefix=CHECK-ERROR
13 // RUN: %clang_cc1 -triple x86_64-apple-darwin16 -fsyntax-only -fmodules \
14 // RUN:   -Wshorten-64-to-32 \
15 // RUN:   -I%S/Inputs/implicit-built-Werror-using-W -fimplicit-module-maps \
16 // RUN:   -fdisable-module-hash \
17 // RUN:   -fmodules-cache-path=%t.cache -x c++ %s 2>&1 \
18 // RUN: | FileCheck %s -check-prefix=CHECK-WARN
19 // RUN: %clang_cc1 -triple x86_64-apple-darwin16 -fsyntax-only -fmodules \
20 // RUN:   -I%S/Inputs/implicit-built-Werror-using-W -fimplicit-module-maps \
21 // RUN:   -fmodules-cache-path=%t.cache -x c++ %s 2>&1 \
22 // RUN: | FileCheck %s -allow-empty
23 //
24 // In the presence of a warning pragma, build with -Werror and then without.
25 // RUN: not %clang_cc1 -triple x86_64-apple-darwin16 -fsyntax-only -fmodules \
26 // RUN:   -DUSE_PRAGMA -Werror=shorten-64-to-32 \
27 // RUN:   -I%S/Inputs/implicit-built-Werror-using-W -fimplicit-module-maps \
28 // RUN:   -fmodules-cache-path=%t-pragma.cache -x c++ %s 2>&1 \
29 // RUN: | FileCheck %s -check-prefix=CHECK-ERROR
30 // RUN: %clang_cc1 -triple x86_64-apple-darwin16 -fsyntax-only -fmodules \
31 // RUN:   -DUSE_PRAGMA \
32 // RUN:   -I%S/Inputs/implicit-built-Werror-using-W -fimplicit-module-maps \
33 // RUN:   -fmodules-cache-path=%t-pragma.cache -x c++ %s 2>&1 \
34 // RUN: | FileCheck %s -check-prefix=CHECK-WARN
35 #include <convert.h>
36 
37 long long foo() { return convert<long long>(0); }
38 
39 // CHECK-ERROR: error: implicit conversion
40 // CHECK-WARN: warning: implicit conversion
41 // CHECK-NOT: error: implicit conversion
42 // CHECK-NOT: warning: implicit conversion
43