1 ; RUN: opt < %s -licm -pass-remarks=licm -o /dev/null 2>&1 | FileCheck %s
2 ; RUN: opt -aa-pipeline=basic-aa -passes='require<aa>,require<targetir>,require<scalar-evolution>,require<opt-remark-emit>,loop(licm)' %s -o /dev/null -pass-remarks=licm 2>&1 | FileCheck %s
3 target 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"
5 define void @hoist(i32* %array, i32* noalias %p) {
10 %j = phi i32 [ 0, %Entry ], [ %Next, %Loop ]
11 %addr = getelementptr i32, i32* %array, i32 %j
12 %a = load i32, i32* %addr
13 ; CHECK: remark: /tmp/kk.c:2:20: hoisting load
14 %b = load i32, i32* %p, !dbg !8
16 store i32 %a2, i32* %addr
18 %cond = icmp eq i32 %Next, 0
19 br i1 %cond, label %Out, label %Loop
25 define i32 @sink(i32* %array, i32* noalias %p, i32 %b) {
30 %j = phi i32 [ 0, %Entry ], [ %Next, %Loop ]
31 %addr = getelementptr i32, i32* %array, i32 %j
32 %a = load i32, i32* %addr
34 store i32 %a2, i32* %addr
35 ; CHECK: remark: /tmp/kk.c:2:21: sinking add
36 %a3 = add i32 %a, 1, !dbg !9
38 %cond = icmp eq i32 %Next, 0
39 br i1 %cond, label %Out, label %Loop
42 %a4 = phi i32 [ %a3, %Loop ]
46 define void @promote(i32* %array, i32* noalias %p) {
51 %j = phi i32 [ 0, %Entry ], [ %Next, %Loop ]
52 %addr = getelementptr i32, i32* %array, i32 %j
53 %a = load i32, i32* %addr
54 %b = load i32, i32* %p
56 store i32 %a2, i32* %addr
57 ; CHECK: remark: /tmp/kk.c:2:22: Moving accesses to memory location out of the loop
58 store i32 %b, i32* %p, !dbg !10
60 %cond = icmp eq i32 %Next, 0
61 br i1 %cond, label %Out, label %Loop
68 !llvm.module.flags = !{!3, !4}
71 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.9.0 ", isOptimized: true, runtimeVersion: 0, emissionKind: NoDebug, enums: !2)
72 !1 = !DIFile(filename: "/tmp/kk.c", directory: "/tmp")
74 !3 = !{i32 2, !"Debug Info Version", i32 3}
75 !4 = !{i32 1, !"PIC Level", i32 2}
76 !5 = !{!"clang version 3.9.0 "}
77 !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)
78 !7 = !DISubroutineType(types: !2)
79 !8 = !DILocation(line: 2, column: 20, scope: !6)
80 !9 = !DILocation(line: 2, column: 21, scope: !6)
81 !10 = !DILocation(line: 2, column: 22, scope: !6)