diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/c-c++-common/pr48418.c')
| -rw-r--r-- | gcc-4.9/gcc/testsuite/c-c++-common/pr48418.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/c-c++-common/pr48418.c b/gcc-4.9/gcc/testsuite/c-c++-common/pr48418.c new file mode 100644 index 000000000..95ff855b8 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/c-c++-common/pr48418.c @@ -0,0 +1,20 @@ +/* PR c/48418 */ +/* { dg-do compile } */ +/* { dg-options "-Wall -O2" } */ + +int +foo (int x) +{ + const int a = sizeof (int) * __CHAR_BIT__; + const int b = -7; + int c = 0; + c += x << a; /* { dg-warning "left shift count >= width of type" } */ + c += x << b; /* { dg-warning "left shift count is negative" } */ + c += x << (sizeof (int) * __CHAR_BIT__); /* { dg-warning "left shift count >= width of type" } */ + c += x << -7; /* { dg-warning "left shift count is negative" } */ + c += x >> a; /* { dg-warning "right shift count >= width of type" } */ + c += x >> b; /* { dg-warning "right shift count is negative" } */ + c += x >> (sizeof (int) * __CHAR_BIT__); /* { dg-warning "right shift count >= width of type" } */ + c += x >> -7; /* { dg-warning "right shift count is negative" } */ + return c; +} |