| Chris Lattner | 75d1412 | 2004-01-13 05:32:27 +0000 | [diff] [blame] | 1 | ; This test checks to make sure that constant exprs fold in some simple situations |
| 2 | |
| 3 | ; RUN: llvm-as < %s | llvm-dis | not grep '(' |
| 4 | |
| 5 | %A = global long 0 |
| 6 | |
| 7 | global long* cast (long add (long cast (long* %A to long), long 0) to long*) ; X + 0 == X |
| 8 | global long* cast (long sub (long cast (long* %A to long), long 0) to long*) ; X - 0 == X |
| 9 | global long* cast (long mul (long cast (long* %A to long), long 0) to long*) ; X * 0 == 0 |
| 10 | global long* cast (long div (long cast (long* %A to long), long 1) to long*) ; X / 1 == X |
| 11 | global long* cast (long rem (long cast (long* %A to long), long 1) to long*) ; X % 1 == 0 |
| 12 | global long* cast (long and (long cast (long* %A to long), long 0) to long*) ; X & 0 == 0 |
| 13 | global long* cast (long and (long cast (long* %A to long), long -1) to long*) ; X & -1 == X |
| 14 | global long or (long cast (long* %A to long), long -1) ; X | -1 == -1 |
| 15 | global long* cast (long xor (long cast (long* %A to long), long 0) to long*) ; X ^ 0 == X |
| 16 | |
| 17 | %Ty = type { int, int } |
| 18 | %B = external global %Ty |
| 19 | |
| 20 | global bool setlt (long* %A, long* getelementptr (long* %A, long 1)) ; true |
| 21 | global bool setlt (long* %A, long* getelementptr (long* %A, long 0)) ; false |
| 22 | global bool setlt (int* getelementptr (%Ty* %B, long 0, ubyte 0), |
| 23 | int* getelementptr (%Ty* %B, long 0, ubyte 1)) ; true |
| Chris Lattner | 28d85f1 | 2004-07-08 15:38:23 +0000 | [diff] [blame^] | 24 | ;global bool setne (long* %A, long* cast (%Ty* %B to long*)) ; true |
| Chris Lattner | 75d1412 | 2004-01-13 05:32:27 +0000 | [diff] [blame] | 25 | |