; RUN: opt -loop-idiom < %s -S | FileCheck %s
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"
target triple = "x86_64-apple-darwin10.0.0"


define void @foo(double* nocapture %a) nounwind ssp {
entry:
  tail call void @llvm.dbg.value(metadata !{double* %a}, i64 0, metadata !5, metadata !{}), !dbg !8
  tail call void @llvm.dbg.value(metadata !9, i64 0, metadata !10, metadata !{}), !dbg !14
  br label %for.body

for.body:                                         ; preds = %entry, %for.body
  %indvar = phi i64 [ 0, %entry ], [ %indvar.next, %for.body ]
  %arrayidx = getelementptr double* %a, i64 %indvar
; CHECK: call void @llvm.memset{{.+}} !dbg 
  store double 0.000000e+00, double* %arrayidx, align 8, !dbg !15
  %indvar.next = add i64 %indvar, 1
  %exitcond = icmp ne i64 %indvar.next, 1000
  br i1 %exitcond, label %for.body, label %for.end, !dbg !14

for.end:                                          ; preds = %for.body
  tail call void @llvm.dbg.value(metadata !{null}, i64 0, metadata !10, metadata !{}), !dbg !16
  ret void, !dbg !17
}

declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone

declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnone

!llvm.module.flags = !{!19}
!llvm.dbg.sp = !{!0}

!0 = metadata !{metadata !"0x2e\00foo\00foo\00\002\000\001\000\006\00256\000\000", metadata !18, metadata !1, metadata !3, null, void (double*)* @foo, null, null, null} ; [ DW_TAG_subprogram ] [line 2] [def] [scope 0] [foo]
!1 = metadata !{metadata !"0x29", metadata !18} ; [ DW_TAG_file_type ]
!2 = metadata !{metadata !"0x11\0012\00clang version 2.9 (trunk 127165:127174)\001\00\000\00\000", metadata !18, metadata !9, metadata !9, null, null, null} ; [ DW_TAG_compile_unit ]
!3 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", metadata !18, metadata !1, null, metadata !4, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!4 = metadata !{null}
!5 = metadata !{metadata !"0x101\00a\0016777218\000", metadata !0, metadata !1, metadata !6} ; [ DW_TAG_arg_variable ]
!6 = metadata !{metadata !"0xf\00\000\0064\0064\000\000", null, metadata !2, metadata !7} ; [ DW_TAG_pointer_type ]
!7 = metadata !{metadata !"0x24\00double\000\0064\0064\000\000\004", null, metadata !2} ; [ DW_TAG_base_type ]
!8 = metadata !{i32 2, i32 18, metadata !0, null}
!9 = metadata !{i32 0}
!10 = metadata !{metadata !"0x100\00i\003\000", metadata !11, metadata !1, metadata !13} ; [ DW_TAG_auto_variable ]
!11 = metadata !{metadata !"0xb\003\003\001", metadata !18, metadata !12} ; [ DW_TAG_lexical_block ]
!12 = metadata !{metadata !"0xb\002\0021\000", metadata !18, metadata !0} ; [ DW_TAG_lexical_block ]
!13 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, metadata !2} ; [ DW_TAG_base_type ]
!14 = metadata !{i32 3, i32 3, metadata !12, null}
!15 = metadata !{i32 4, i32 5, metadata !11, null}
!16 = metadata !{i32 3, i32 29, metadata !11, null}
!17 = metadata !{i32 5, i32 1, metadata !12, null}
!18 = metadata !{metadata !"li.c", metadata !"/private/tmp"}
!19 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}