1 ; RUN: opt < %s -enable-cond-stores-vec=false -loop-vectorize -S -pass-remarks-missed='loop-vectorize' -pass-remarks-analysis='loop-vectorize' 2>&1 | FileCheck %s
2 ; RUN: opt < %s -enable-cond-stores-vec=false -passes=loop-vectorize -S -pass-remarks-missed='loop-vectorize' -pass-remarks-analysis='loop-vectorize' 2>&1 | FileCheck %s
4 ; CHECK: remark: source.c:2:8: the cost-model indicates that vectorization is not beneficial
6 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
8 ; Function Attrs: nounwind ssp uwtable
9 define void @conditional_store(i32* noalias nocapture %indices) #0 !dbg !4 {
11 br label %for.body, !dbg !10
13 for.body: ; preds = %for.inc, %entry
14 %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.inc ]
15 %arrayidx = getelementptr inbounds i32, i32* %indices, i64 %indvars.iv, !dbg !12
16 %0 = load i32, i32* %arrayidx, align 4, !dbg !12, !tbaa !14
17 %cmp1 = icmp eq i32 %0, 1024, !dbg !12
18 br i1 %cmp1, label %if.then, label %for.inc, !dbg !12
20 if.then: ; preds = %for.body
21 store i32 0, i32* %arrayidx, align 4, !dbg !18, !tbaa !14
22 br label %for.inc, !dbg !18
24 for.inc: ; preds = %for.body, %if.then
25 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1, !dbg !10
26 %exitcond = icmp eq i64 %indvars.iv.next, 4096, !dbg !10
27 br i1 %exitcond, label %for.end, label %for.body, !dbg !10
29 for.end: ; preds = %for.inc
33 attributes #0 = { nounwind }
36 !llvm.module.flags = !{!7, !8}
39 !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.6.0", isOptimized: true, emissionKind: LineTablesOnly, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
40 !1 = !DIFile(filename: "source.c", directory: ".")
42 !4 = distinct !DISubprogram(name: "conditional_store", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 1, file: !1, scope: !5, type: !6, retainedNodes: !2)
43 !5 = !DIFile(filename: "source.c", directory: ".")
44 !6 = !DISubroutineType(types: !2)
45 !7 = !{i32 2, !"Dwarf Version", i32 2}
46 !8 = !{i32 2, !"Debug Info Version", i32 3}
47 !9 = !{!"clang version 3.6.0"}
48 !10 = !DILocation(line: 2, column: 8, scope: !11)
49 !11 = distinct !DILexicalBlock(line: 2, column: 3, file: !1, scope: !4)
50 !12 = !DILocation(line: 3, column: 9, scope: !13)
51 !13 = distinct !DILexicalBlock(line: 3, column: 9, file: !1, scope: !11)
52 !14 = !{!15, !15, i64 0}
53 !15 = !{!"int", !16, i64 0}
54 !16 = !{!"omnipotent char", !17, i64 0}
55 !17 = !{!"Simple C/C++ TBAA"}
56 !18 = !DILocation(line: 3, column: 29, scope: !13)
57 !19 = !DILocation(line: 4, column: 1, scope: !4)