; RUN: llc < %s -march=hexagon -mcpu=hexagonv4 -O2 -disable-lsr | FileCheck %s
; ModuleID = 'hwloop-dbg.o'
target datalayout = "e-p:32:32:32-i64:64:64-i32:32:32-i16:16:16-i1:32:32-f64:64:64-f32:32:32-v64:64:64-v32:32:32-a0:0-n16:32"
target triple = "hexagon"

define void @foo(i32* nocapture %a, i32* nocapture %b) nounwind {
entry:
  tail call void @llvm.dbg.value(metadata !{i32* %a}, i64 0, metadata !13, metadata !{metadata !"0x102"}), !dbg !17
  tail call void @llvm.dbg.value(metadata !{i32* %b}, i64 0, metadata !14, metadata !{metadata !"0x102"}), !dbg !18
  tail call void @llvm.dbg.value(metadata !30, i64 0, metadata !15, metadata !{metadata !"0x102"}), !dbg !19
  br label %for.body, !dbg !19

for.body:                                         ; preds = %for.body, %entry
; CHECK:     loop0(
; CHECK-NOT: add({{r[0-9]*}}, #
; CHECK:     endloop0
  %arrayidx.phi = phi i32* [ %a, %entry ], [ %arrayidx.inc, %for.body ]
  %i.02 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
  %b.addr.01 = phi i32* [ %b, %entry ], [ %incdec.ptr, %for.body ]
  %incdec.ptr = getelementptr inbounds i32* %b.addr.01, i32 1, !dbg !21
  tail call void @llvm.dbg.value(metadata !{i32* %incdec.ptr}, i64 0, metadata !14, metadata !{metadata !"0x102"}), !dbg !21
  %0 = load i32* %b.addr.01, align 4, !dbg !21
  store i32 %0, i32* %arrayidx.phi, align 4, !dbg !21
  %inc = add nsw i32 %i.02, 1, !dbg !26
  tail call void @llvm.dbg.value(metadata !{i32 %inc}, i64 0, metadata !15, metadata !{metadata !"0x102"}), !dbg !26
  %exitcond = icmp eq i32 %inc, 10, !dbg !19
  %arrayidx.inc = getelementptr i32* %arrayidx.phi, i32 1
  br i1 %exitcond, label %for.end, label %for.body, !dbg !19

for.end:                                          ; preds = %for.body
  ret void, !dbg !27
}

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


!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!29}

!0 = metadata !{metadata !"0x11\0012\00QuIC LLVM Hexagon Clang version 6.1-pre-unknown, (git://git-hexagon-aus.quicinc.com/llvm/clang-mainline.git e9382867661454cdf44addb39430741578e9765c) (llvm/llvm-mainline.git 36412bb1fcf03ed426d4437b41198bae066675ac)\001\00\000\00\001", metadata !28, metadata !2, metadata !2, metadata !3, metadata !2, null} ; [ DW_TAG_compile_unit ] [/usr2/kparzysz/s.hex/t/hwloop-dbg.c] [DW_LANG_C99]
!2 = metadata !{}
!3 = metadata !{metadata !5}
!5 = metadata !{metadata !"0x2e\00foo\00foo\00\001\000\001\000\006\00256\001\001", metadata !28, null, metadata !7, null, void (i32*, i32*)* @foo, null, null, metadata !11} ; [ DW_TAG_subprogram ] [line 1] [def] [foo]
!6 = metadata !{metadata !"0x29", metadata !28} ; [ DW_TAG_file_type ]
!7 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !8, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!8 = metadata !{null, metadata !9, metadata !9}
!9 = metadata !{metadata !"0xf\00\000\0032\0032\000\000", null, null, metadata !10} ; [ DW_TAG_pointer_type ] [line 0, size 32, align 32, offset 0] [from int]
!10 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
!11 = metadata !{metadata !13, metadata !14, metadata !15}
!13 = metadata !{metadata !"0x101\00a\0016777217\000", metadata !5, metadata !6, metadata !9} ; [ DW_TAG_arg_variable ] [a] [line 1]
!14 = metadata !{metadata !"0x101\00b\0033554433\000", metadata !5, metadata !6, metadata !9} ; [ DW_TAG_arg_variable ] [b] [line 1]
!15 = metadata !{metadata !"0x100\00i\002\000", metadata !16, metadata !6, metadata !10} ; [ DW_TAG_auto_variable ] [i] [line 2]
!16 = metadata !{metadata !"0xb\001\0026\000", metadata !28, metadata !5} ; [ DW_TAG_lexical_block ] [/usr2/kparzysz/s.hex/t/hwloop-dbg.c]
!17 = metadata !{i32 1, i32 15, metadata !5, null}
!18 = metadata !{i32 1, i32 23, metadata !5, null}
!19 = metadata !{i32 3, i32 8, metadata !20, null}
!20 = metadata !{metadata !"0xb\003\003\001", metadata !28, metadata !16} ; [ DW_TAG_lexical_block ] [/usr2/kparzysz/s.hex/t/hwloop-dbg.c]
!21 = metadata !{i32 4, i32 5, metadata !22, null}
!22 = metadata !{metadata !"0xb\003\0028\002", metadata !28, metadata !20} ; [ DW_TAG_lexical_block ] [/usr2/kparzysz/s.hex/t/hwloop-dbg.c]
!26 = metadata !{i32 3, i32 23, metadata !20, null}
!27 = metadata !{i32 6, i32 1, metadata !16, null}
!28 = metadata !{metadata !"hwloop-dbg.c", metadata !"/usr2/kparzysz/s.hex/t"}
!29 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
!30 = metadata !{i32 0}