| /* PR 34389 */ |
| /* { dg-do compile } */ |
| /* { dg-options "-Wconversion -Wsign-conversion" } */ |
| /* { dg-require-effective-target int32plus } */ |
| short mask1(short x) |
| { |
| short y = 0x7fff; |
| return x & y; /* { dg-bogus "conversion" "bogus warning" } */ |
| } |
| |
| short mask2(short ssx) |
| { |
| short ssy; |
| short ssz; |
| |
| ssz = ((int)ssx) & 0x7fff; |
| ssy = ((int)ssx) | 0x7fff; |
| ssz = ((int)ssx) ^ 0x7fff; |
| return ssx & 0x7fff; |
| } |
| |
| short mask3(int si, unsigned int ui) |
| { |
| short ss; |
| unsigned short us; |
| |
| ss = si & 0x7fff; |
| ss = si & 0xAAAA; /* { dg-warning "conversion" } */ |
| ss = ui & 0x7fff; |
| ss = ui & 0xAAAA; /* { dg-warning "conversion" } */ |
| |
| us = si & 0x7fff; |
| us = si & 0xAAAA; /* { dg-warning "conversion" } */ |
| us = ui & 0x7fff; |
| us = ui & 0xAAAA; /* 0xAAAA is zero-extended, thus it masks the |
| upper bits of 'ui' making it fit in 'us'. */ |
| |
| return ss; |
| } |
| |
| short mask4(int x, int y) |
| { |
| return x & y; /* { dg-warning "conversion" } */ |
| } |
| |
| short mask5(int x) |
| { |
| return x & -1; /* { dg-warning "conversion" } */ |
| } |
| |
| short mask6(short x) |
| { |
| return x & -1; |
| } |
