diff options
Diffstat (limited to 'clang/test/Sema/shift.c')
| -rw-r--r-- | clang/test/Sema/shift.c | 33 |
1 files changed, 31 insertions, 2 deletions
diff --git a/clang/test/Sema/shift.c b/clang/test/Sema/shift.c index 5acbe12ac33..4c2b88a7f01 100644 --- a/clang/test/Sema/shift.c +++ b/clang/test/Sema/shift.c @@ -1,6 +1,35 @@ -// RUN: clang-cc -fsyntax-only %s +// RUN: clang-cc -Wall -fsyntax-only -verify %s + +#include <limits.h> + +enum { + X = 1 << 0, + Y = 1 << 1, + Z = 1 << 2 +}; void test() { char c; - c <<= 14; + + c = 0 << 0; + c = 0 << 1; // expected-warning {{no effect}} + c = 1 << 0; + c = 1 << -0; + c = 1 >> -0; + c = 1 << -1; // expected-warning {{shift count is negative}} + c = 1 >> -1; // expected-warning {{shift count is negative}} + c = 1 << c; + c <<= 0; // expected-warning {{no effect}} + c >>= 0; // expected-warning {{no effect}} + c <<= 1; + c >>= 1; + c <<= -1; // expected-warning {{shift count is negative}} + c >>= -1; // expected-warning {{shift count is negative}} + c <<= 999999; // expected-warning {{shift count >= width of type}} + c >>= 999999; // expected-warning {{shift count >= width of type}} + c <<= CHAR_BIT; // expected-warning {{shift count >= width of type}} + c >>= CHAR_BIT; // expected-warning {{shift count >= width of type}} + c <<= CHAR_BIT+1; // expected-warning {{shift count >= width of type}} + c >>= CHAR_BIT+1; // expected-warning {{shift count >= width of type}} + (void)((long)c << CHAR_BIT); } |
