1 ; Confirm that the line numbers for the middle.block operations are all the
2 ; same as the start of the loop.
4 ; RUN: opt -S -passes=loop-vectorize -force-vector-width=4 -force-vector-interleave=4 <%s | FileCheck %s
7 ; CHECK-NEXT: %{{.*}}= add <4 x i32>{{.*}}, !dbg ![[DL:[0-9]+]]
8 ; CHECK-NEXT: %{{.*}}= add <4 x i32>{{.*}}, !dbg ![[DL]]
9 ; CHECK-NEXT: %{{.*}}= add <4 x i32>{{.*}}, !dbg ![[DL]]
10 ; CHECK-NEXT: %{{.*}}= call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> {{.*}}), !dbg ![[DL]]
11 ; CHECK-NEXT: %{{.*}}= icmp eq i64{{.*}}, !dbg ![[DL]]
12 ; CHECK-NEXT: br i1 %{{.*}}, !dbg ![[DL]]
13 ; CHECK: ![[DL]] = !DILocation(line: 5,
15 ; This IR can be generated by running:
16 ; clang -gmlt -S src.cpp -emit-llvm -mllvm -opt-bisect-limit=56 -O2 -o -
18 ; Where src.cpp contains:
19 ; int foo(int count, int *bar)
23 ; for (int j = 0; j < count; j++) {
31 define dso_local i32 @"foo"(i32 %count, ptr nocapture readonly %bar) local_unnamed_addr !dbg !8 {
33 %cmp8 = icmp sgt i32 %count, 0, !dbg !10
34 br i1 %cmp8, label %for.body.preheader, label %for.cond.cleanup, !dbg !10
36 for.body.preheader: ; preds = %entry
37 %wide.trip.count = zext i32 %count to i64
38 br label %for.body, !dbg !11
40 for.cond.cleanup.loopexit: ; preds = %for.body
41 %add.lcssa = phi i32 [ %add, %for.body ], !dbg !12
42 br label %for.cond.cleanup, !dbg !13
44 for.cond.cleanup: ; preds = %for.cond.cleanup.loopexit, %entry
45 %ret.0.lcssa = phi i32 [ %count, %entry ], [ %add.lcssa, %for.cond.cleanup.loopexit ], !dbg !14
46 ret i32 %ret.0.lcssa, !dbg !13
48 for.body: ; preds = %for.body, %for.body.preheader
49 %indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ]
50 %ret.09 = phi i32 [ %count, %for.body.preheader ], [ %add, %for.body ]
51 %arrayidx = getelementptr inbounds i32, ptr %bar, i64 %indvars.iv, !dbg !11
52 %0 = load i32, ptr %arrayidx, align 4, !dbg !11, !tbaa !15
53 %add = add nsw i32 %0, %ret.09, !dbg !12
54 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1, !dbg !10
55 %exitcond = icmp eq i64 %indvars.iv.next, %wide.trip.count, !dbg !10
56 br i1 %exitcond, label %for.cond.cleanup.loopexit, label %for.body, !dbg !10, !llvm.loop !19
60 !llvm.module.flags = !{!3, !4, !5, !6}
63 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "", isOptimized: true, runtimeVersion: 0, emissionKind: LineTablesOnly, enums: !2, nameTableKind: None)
64 !1 = !DIFile(filename: "src.cpp", directory: "")
66 !3 = !{i32 2, !"CodeView", i32 1}
67 !4 = !{i32 2, !"Debug Info Version", i32 3}
68 !5 = !{i32 1, !"wchar_size", i32 2}
69 !6 = !{i32 7, !"PIC Level", i32 2}
71 !8 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 1, type: !9, scopeLine: 2, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
72 !9 = !DISubroutineType(types: !2)
73 !10 = !DILocation(line: 5, scope: !8)
74 !11 = !DILocation(line: 6, scope: !8)
75 !12 = !DILocation(line: 7, scope: !8)
76 !13 = !DILocation(line: 10, scope: !8)
77 !14 = !DILocation(line: 0, scope: !8)
78 !15 = !{!16, !16, i64 0}
79 !16 = !{!"int", !17, i64 0}
80 !17 = !{!"omnipotent char", !18, i64 0}
81 !18 = !{!"Simple C++ TBAA"}
82 !19 = distinct !{!19, !10, !20}
83 !20 = !DILocation(line: 8, scope: !8)