| /* { dg-do compile } */ |
| /* { dg-options "-O2" } */ |
| |
| /* The integer variable shift and rotate instructions truncate their |
| shift amounts by the datasize. Make sure that we don't emit a redundant |
| masking operation. */ |
| |
| unsigned |
| f1 (unsigned x, int y) |
| { |
| return x << (y & 31); |
| } |
| |
| unsigned long long |
| f2 (unsigned long long x, int y) |
| { |
| return x << (y & 63); |
| } |
| |
| unsigned long long |
| f3 (unsigned long long bit_addr, int y) |
| { |
| unsigned long bitnumb = bit_addr & 63; |
| return (1LL << bitnumb); |
| } |
| |
| unsigned int |
| f4 (unsigned int x, unsigned int y) |
| { |
| y &= 31; |
| return x >> y | (x << (32 - y)); |
| } |
| |
| unsigned long long |
| f5 (unsigned long long x, unsigned long long y) |
| { |
| y &= 63; |
| return x >> y | (x << (64 - y)); |
| } |
| |
| unsigned int |
| f6 (unsigned int x, unsigned int y) |
| { |
| return (x << (32 - (y & 31))); |
| } |
| |
| unsigned long long |
| f7 (unsigned long long x, unsigned long long y) |
| { |
| return (x << (64 - (y & 63))); |
| } |
| |
| unsigned long long |
| f8 (unsigned long long x, unsigned long long y) |
| { |
| return (x << -(y & 63)); |
| } |
| |
| /* { dg-final { scan-assembler-times "lsl\tw\[0-9\]+, w\[0-9\]+, w\[0-9\]+" 2 } } */ |
| /* { dg-final { scan-assembler-times "lsl\tx\[0-9\]+, x\[0-9\]+, x\[0-9\]+" 4 } } */ |
| /* { dg-final { scan-assembler-times "ror\tw\[0-9\]+, w\[0-9\]+, w\[0-9\]+" 1 } } */ |
| /* { dg-final { scan-assembler-times "ror\tx\[0-9\]+, x\[0-9\]+, x\[0-9\]+" 1 } } */ |
| /* { dg-final { scan-assembler-not "and\tw\[0-9\]+, w\[0-9\]+, 31" } } */ |
| /* { dg-final { scan-assembler-not "and\tx\[0-9\]+, x\[0-9\]+, 63" } } */ |
| /* { dg-final { scan-assembler-not "sub\tw\[0-9\]+, w\[0-9\]+, w\[0-9\]+" } } */ |
