blob: a0e71a7e7dcae08f9fd4b6b641b5d6407cf540d1 [file] [log] [blame]
Hal Finkel7529c552014-09-02 21:43:13 +00001; 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.
9define void @qux(i1 %m, double* noalias %x, double* noalias %y,
10 i1 %n, double* noalias %v, double* noalias %w) {
11entry:
12 br i1 %m, label %true, label %false
13
14true:
15 br label %exit
16
17false:
18 br label %exit
19
20exit:
21 %a = phi double* [ %x, %true ], [ %y, %false ]
22 br i1 %n, label %ntrue, label %nfalse
23
24ntrue:
25 br label %nexit
26
27nfalse:
28 br label %nexit
29
30nexit:
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