1 ; RUN: opt -loop-idiom < %s -S | FileCheck %s 2 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" 3 target triple = "x86_64-apple-darwin10.0.0" 4 5 6 define void @foo(double* nocapture %a) nounwind ssp !dbg !0 { 7 entry: 8 tail call void @llvm.dbg.value(metadata double* %a, i64 0, metadata !5, metadata !DIExpression()), !dbg !8 9 tail call void @llvm.dbg.value(metadata i32 0, i64 0, metadata !10, metadata !DIExpression()), !dbg !14 10 br label %for.body 11 12 for.body: ; preds = %entry, %for.body 13 %indvar = phi i64 [ 0, %entry ], [ %indvar.next, %for.body ] 14 %arrayidx = getelementptr double, double* %a, i64 %indvar 15 ; CHECK: call void @llvm.memset{{.+}} !dbg 16 store double 0.000000e+00, double* %arrayidx, align 8, !dbg !15 17 %indvar.next = add i64 %indvar, 1 18 %exitcond = icmp ne i64 %indvar.next, 1000 19 br i1 %exitcond, label %for.body, label %for.end, !dbg !14 20 21 for.end: ; preds = %for.body 22 tail call void @llvm.dbg.value(metadata !{null}, i64 0, metadata !10, metadata !DIExpression()), !dbg !16 23 ret void, !dbg !17 24 } 25 26 declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone 27 28 declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnone 29 30 !llvm.module.flags = !{!19} 31 !llvm.dbg.sp = !{!0} 32 33 !0 = distinct !DISubprogram(name: "foo", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, file: !18, scope: !1, type: !3) 34 !1 = !DIFile(filename: "li.c", directory: "/private/tmp") 35 !2 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 2.9 (trunk 127165:127174)", isOptimized: true, emissionKind: 0, file: !18, enums: !9, retainedTypes: !9) 36 !3 = !DISubroutineType(types: !4) 37 !4 = !{null} 38 !5 = !DILocalVariable(name: "a", line: 2, arg: 1, scope: !0, file: !1, type: !6) 39 !6 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, scope: !2, baseType: !7) 40 !7 = !DIBasicType(tag: DW_TAG_base_type, name: "double", size: 64, align: 64, encoding: DW_ATE_float) 41 !8 = !DILocation(line: 2, column: 18, scope: !0) 42 !9 = !{} 43 !10 = !DILocalVariable(name: "i", line: 3, scope: !11, file: !1, type: !13) 44 !11 = distinct !DILexicalBlock(line: 3, column: 3, file: !18, scope: !12) 45 !12 = distinct !DILexicalBlock(line: 2, column: 21, file: !18, scope: !0) 46 !13 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 47 !14 = !DILocation(line: 3, column: 3, scope: !12) 48 !15 = !DILocation(line: 4, column: 5, scope: !11) 49 !16 = !DILocation(line: 3, column: 29, scope: !11) 50 !17 = !DILocation(line: 5, column: 1, scope: !12) 51 !18 = !DIFile(filename: "li.c", directory: "/private/tmp") 52 !19 = !{i32 1, !"Debug Info Version", i32 3} 53
