| ; LFTR should eliminate the need for the computation of i*i completely. It |
| ; is only used to compute the exit value. |
| ; RUN: llvm-as < %s | opt -indvars -dce | llvm-dis | not grep mul |
| |
| %A = external global int |
| |
| implementation |
| |
| int %quadratic_setlt() { ;; for (i = 7; i*i < 1000; ++i) |
| entry: |
| br label %loop |
| loop: |
| %i = phi int [ 7, %entry ], [ %i.next, %loop ] |
| %i.next = add int %i, 1 |
| store int %i, int* %A |
| |
| %i2 = mul int %i, %i |
| %c = setlt int %i2, 1000 |
| br bool %c, label %loop, label %loopexit |
| loopexit: |
| ret int %i |
| } |
| |
