Hal Finkel | 7529c55 | 2014-09-02 21:43:13 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -cfl-aa -aa-eval -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s |
| 2 | ; Derived from (a subset of) BasicAA/phi-and-select.ll |
| 3 | |
| 4 | ; CHECK: Function: qux |
| 5 | ; CHECK: NoAlias: double* %a, double* %b |
| 6 | ; CHECK: ===== Alias Analysis Evaluator Report ===== |
| 7 | |
| 8 | ; Two PHIs with disjoint sets of inputs. |
| 9 | define void @qux(i1 %m, double* noalias %x, double* noalias %y, |
| 10 | i1 %n, double* noalias %v, double* noalias %w) { |
| 11 | entry: |
| 12 | br i1 %m, label %true, label %false |
| 13 | |
| 14 | true: |
| 15 | br label %exit |
| 16 | |
| 17 | false: |
| 18 | br label %exit |
| 19 | |
| 20 | exit: |
| 21 | %a = phi double* [ %x, %true ], [ %y, %false ] |
| 22 | br i1 %n, label %ntrue, label %nfalse |
| 23 | |
| 24 | ntrue: |
| 25 | br label %nexit |
| 26 | |
| 27 | nfalse: |
| 28 | br label %nexit |
| 29 | |
| 30 | nexit: |
| 31 | %b = phi double* [ %v, %ntrue ], [ %w, %nfalse ] |
| 32 | store volatile double 0.0, double* %a |
| 33 | store volatile double 1.0, double* %b |
| 34 | ret void |
| 35 | } |
| 36 | |