source: icGREP/icgrep-devel/llvm-3.8.0.src/test/Analysis/CFLAliasAnalysis/constant-over-index.ll @ 5027

Last change on this file since 5027 was 5027, checked in by cameron, 3 years ago

Upgrade to llvm 3.8

File size: 965 bytes
Line 
1; RUN: opt < %s -cfl-aa -aa-eval -print-all-alias-modref-info 2>&1 | FileCheck %s
2
3; CFL AA currently returns PartialAlias, BasicAA returns MayAlias, both seem
4; acceptable (although we might decide that we don't want PartialAlias, and if
5; so, we should update this test case accordingly).
6; CHECK: {{PartialAlias|MayAlias}}: double* %p.0.i.0, double* %p3
7
8; %p3 is equal to %p.0.i.0 on the second iteration of the loop,
9; so MayAlias is needed.
10
11define void @foo([3 x [3 x double]]* noalias %p) {
12entry:
13  %p3 = getelementptr [3 x [3 x double]], [3 x [3 x double]]* %p, i64 0, i64 0, i64 3
14  br label %loop
15
16loop:
17  %i = phi i64 [ 0, %entry ], [ %i.next, %loop ]
18
19  %p.0.i.0 = getelementptr [3 x [3 x double]], [3 x [3 x double]]* %p, i64 0, i64 %i, i64 0
20
21  store volatile double 0.0, double* %p3
22  store volatile double 0.1, double* %p.0.i.0
23
24  %i.next = add i64 %i, 1
25  %cmp = icmp slt i64 %i.next, 3
26  br i1 %cmp, label %loop, label %exit
27
28exit:
29  ret void
30}
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