1; 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 2 3; CHECK: remark: source.c:2:8: the cost-model indicates that vectorization is not beneficial 4 5target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 6 7; Function Attrs: nounwind ssp uwtable 8define void @conditional_store(ptr noalias nocapture %indices) #0 !dbg !4 { 9entry: 10 br label %for.body, !dbg !10 11 12for.body: ; preds = %for.inc, %entry 13 %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.inc ] 14 %arrayidx = getelementptr inbounds i32, ptr %indices, i64 %indvars.iv, !dbg !12 15 %0 = load i32, ptr %arrayidx, align 4, !dbg !12, !tbaa !14 16 %cmp1 = icmp eq i32 %0, 1024, !dbg !12 17 br i1 %cmp1, label %if.then, label %for.inc, !dbg !12 18 19if.then: ; preds = %for.body 20 store i32 0, ptr %arrayidx, align 4, !dbg !18, !tbaa !14 21 br label %for.inc, !dbg !18 22 23for.inc: ; preds = %for.body, %if.then 24 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1, !dbg !10 25 %exitcond = icmp eq i64 %indvars.iv.next, 4096, !dbg !10 26 br i1 %exitcond, label %for.end, label %for.body, !dbg !10 27 28for.end: ; preds = %for.inc 29 ret void, !dbg !19 30} 31 32attributes #0 = { nounwind } 33 34!llvm.dbg.cu = !{!0} 35!llvm.module.flags = !{!7, !8} 36!llvm.ident = !{!9} 37 38!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) 39!1 = !DIFile(filename: "source.c", directory: ".") 40!2 = !{} 41!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) 42!5 = !DIFile(filename: "source.c", directory: ".") 43!6 = !DISubroutineType(types: !2) 44!7 = !{i32 2, !"Dwarf Version", i32 2} 45!8 = !{i32 2, !"Debug Info Version", i32 3} 46!9 = !{!"clang version 3.6.0"} 47!10 = !DILocation(line: 2, column: 8, scope: !11) 48!11 = distinct !DILexicalBlock(line: 2, column: 3, file: !1, scope: !4) 49!12 = !DILocation(line: 3, column: 9, scope: !13) 50!13 = distinct !DILexicalBlock(line: 3, column: 9, file: !1, scope: !11) 51!14 = !{!15, !15, i64 0} 52!15 = !{!"int", !16, i64 0} 53!16 = !{!"omnipotent char", !17, i64 0} 54!17 = !{!"Simple C/C++ TBAA"} 55!18 = !DILocation(line: 3, column: 29, scope: !13) 56!19 = !DILocation(line: 4, column: 1, scope: !4) 57