1; The purpose of this test is to check that the remark emission analysis result
2; stays valid when it can and is invalidated otherwise. The code is just
3; a minimal amount of code to exercise the pass.
4;
5; First make sure we emit remarks on this test case.
6; RUN: opt %s -disable-output -aa-pipeline=basic-aa 2>&1 \
7; RUN:     -passes='require<opt-remark-emit>,loop(licm)' \
8; RUN:     -pass-remarks=licm -pass-remarks-with-hotness \
9; RUN:     | FileCheck %s
10;
11; Check that passes which preserve BFI don't invalidate the emitter.
12; RUN: opt %s -disable-output -aa-pipeline=basic-aa 2>&1 \
13; RUN:     -passes='require<opt-remark-emit>,instcombine,require<opt-remark-emit>,loop(licm)' -debug-pass-manager \
14; RUN:     -pass-remarks=licm -pass-remarks-with-hotness \
15; RUN:     | FileCheck %s --check-prefixes=CHECK,CHECK-PM-PRESERVE
16;
17; Check that invalidating BFI computes a fresh emitter.
18; RUN: opt %s -disable-output -aa-pipeline=basic-aa 2>&1 \
19; RUN:     -passes='require<opt-remark-emit>,invalidate<block-freq>,require<opt-remark-emit>,loop(licm)' -debug-pass-manager \
20; RUN:     -pass-remarks=licm -pass-remarks-with-hotness \
21; RUN:     | FileCheck %s --check-prefixes=CHECK,CHECK-PM-INVALIDATE
22;
23; Check that invalidating BFI desn't compute a fresh emitter when we don't
24; request hotness remarks.
25; RUN: opt %s -disable-output -aa-pipeline=basic-aa 2>&1 \
26; RUN:     -passes='require<opt-remark-emit>,invalidate<block-freq>,require<opt-remark-emit>,loop(licm)' -debug-pass-manager \
27; RUN:     -pass-remarks=licm \
28; RUN:     | FileCheck %s --check-prefixes=CHECK,CHECK-PM-NO-INVALIDATE
29
30target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
31
32define void @hoist(i32* %array, i32* noalias %p) {
33; CHECK-PM-PRESERVE: Running analysis: OptimizationRemarkEmitterAnalysis
34; CHECK-PM-PRESERVE: Running pass: InstCombinePass
35; CHECK-PM-PRESERVE-NOT: Invalidating analysis: OptimizationRemarkEmitterAnalysis
36; CHECK-PM-PRESERVE-NOT: Running analysis: OptimizationRemarkEmitterAnalysis
37; CHECK-PM-PRESERVE: Running pass: LICMPass
38; CHECK-PM-INVALIDATE: Running analysis: OptimizationRemarkEmitterAnalysis
39; CHECK-PM-INVALIDATE: Running pass: InvalidateAnalysisPass
40; CHECK-PM-INVALIDATE: Invalidating analysis: OptimizationRemarkEmitterAnalysis
41; CHECK-PM-INVALIDATE: Running analysis: OptimizationRemarkEmitterAnalysis
42; CHECK-PM-INVALIDATE: Running pass: LICMPass
43; CHECK-PM-NO-INVALIDATE: Running analysis: OptimizationRemarkEmitterAnalysis
44; CHECK-PM-NO-INVALIDATE: Running pass: InvalidateAnalysisPass
45; CHECK-PM-NO-INVALIDATE-NOT: Invalidating analysis: OptimizationRemarkEmitterAnalysis
46; CHECK-PM-NO-INVALIDATE-NOT: Running analysis: OptimizationRemarkEmitterAnalysis
47; CHECK-PM-NO-INVALIDATE: Running pass: LICMPass
48
49Entry:
50  br label %Loop
51
52Loop:
53  %j = phi i32 [ 0, %Entry ], [ %Next, %Loop ]
54  %addr = getelementptr i32, i32* %array, i32 %j
55  %a = load i32, i32* %addr
56; CHECK: remark: /tmp/kk.c:2:20: hoisting load
57  %b = load i32, i32* %p, !dbg !8
58  %a2 = add i32 %a, %b
59  store i32 %a2, i32* %addr
60  %Next = add i32 %j, 1
61  %cond = icmp eq i32 %Next, 0
62  br i1 %cond, label %Out, label %Loop
63
64Out:
65  ret void
66}
67
68!llvm.dbg.cu = !{!0}
69!llvm.module.flags = !{!3, !4}
70!llvm.ident = !{!5}
71
72!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.9.0 ", isOptimized: true, runtimeVersion: 0, emissionKind: NoDebug, enums: !2)
73!1 = !DIFile(filename: "/tmp/kk.c", directory: "/tmp")
74!2 = !{}
75!3 = !{i32 2, !"Debug Info Version", i32 3}
76!4 = !{i32 1, !"PIC Level", i32 2}
77!5 = !{!"clang version 3.9.0 "}
78!6 = distinct !DISubprogram(name: "success", scope: !1, file: !1, line: 1, type: !7, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !2)
79!7 = !DISubroutineType(types: !2)
80!8 = !DILocation(line: 2, column: 20, scope: !6)
81