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| author | Roman Lebedev <lebedev.ri@gmail.com> | 2017-11-04 20:27:47 +0000 |
|---|---|---|
| committer | Roman Lebedev <lebedev.ri@gmail.com> | 2017-11-04 20:27:47 +0000 |
| commit | a54d18761bea291cfe7735f73d4b45ff23b7a835 (patch) | |
| tree | fe4796fb13267cbcca74414e9b5f84299507405f /test/Sema | |
| parent | 0576e32faa24ba1ad257be2a3bd32e82762bc243 (diff) | |
| download | clang-a54d18761bea291cfe7735f73d4b45ff23b7a835.tar.gz | |
[Sema] Document+test the -Wsign-conversion change for enums in C code [NFC]
Basically a regression after r316268.
However the diagnostic is correct, but the test coverage is bad.
So just like rL316500, introduce yet more tests,
and adjust the release notes.
See https://bugs.llvm.org/show_bug.cgi?id=35200
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@317421 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Sema')
| -rw-r--r-- | test/Sema/enum-sign-conversion.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/test/Sema/enum-sign-conversion.c b/test/Sema/enum-sign-conversion.c new file mode 100644 index 0000000000..518fc670d3 --- /dev/null +++ b/test/Sema/enum-sign-conversion.c @@ -0,0 +1,13 @@ +// RUN: %clang_cc1 -triple=x86_64-pc-linux-gnu -fsyntax-only -verify -DUNSIGNED -Wsign-conversion %s +// RUN: %clang_cc1 -triple=x86_64-pc-win32 -fsyntax-only -verify -Wsign-conversion %s + +// PR35200 +enum X { A,B,C}; +int f(enum X x) { +#ifdef UNSIGNED + return x; // expected-warning {{implicit conversion changes signedness: 'enum X' to 'int'}} +#else + // expected-no-diagnostics + return x; +#endif +} |