1; Test to make sure loop vectorizer metadata is automatically upgraded.
2;
3; Run using opt as well to ensure that the metadata is upgraded when parsing
4; assembly.
5;
6; RUN: llvm-as < %s | llvm-dis | FileCheck %s
7; RUN: opt -S < %s | FileCheck %s
8; RUN: verify-uselistorder %s
9
10define void @_Z28loop_with_vectorize_metadatav() {
11entry:
12  %i = alloca i32, align 4
13  store i32 0, i32* %i, align 4
14  br label %for.cond
15
16for.cond:                                         ; preds = %for.inc, %entry
17  %0 = load i32, i32* %i, align 4
18  %cmp = icmp slt i32 %0, 16
19  br i1 %cmp, label %for.body, label %for.end, !llvm.loop !1
20
21for.body:                                         ; preds = %for.cond
22  br label %for.inc
23
24for.inc:                                          ; preds = %for.body
25  %1 = load i32, i32* %i, align 4
26  %inc = add nsw i32 %1, 1
27  store i32 %inc, i32* %i, align 4
28  br label %for.cond
29
30for.end:                                          ; preds = %for.cond
31  ret void
32}
33
34; CHECK: !{!"llvm.loop.interleave.count", i32 4}
35; CHECK: !{!"llvm.loop.vectorize.width", i32 8}
36; CHECK: !{!"llvm.loop.vectorize.enable", i1 true}
37
38!0 = !{!"clang version 3.5.0 (trunk 211528)"}
39!1 = !{!1, !2, !3, !4, !4}
40!2 = !{!"llvm.vectorizer.unroll", i32 4}
41!3 = !{!"llvm.vectorizer.width", i32 8}
42!4 = !{!"llvm.vectorizer.enable", i1 true}
43