llvm-6502/test/CodeGen/X86/2011-01-24-DbgValue-Before-Use.ll

; RUN: llc < %s | FileCheck %s
; RUN: llc < %s -regalloc=basic | 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"

; Check debug info for variable z_s
;CHECK: .long Lset14
;CHECK-NEXT:  ## DW_AT_decl_file
;CHECK-NEXT:  ## DW_AT_decl_line
;CHECK-NEXT:  ## DW_AT_type
;CHECK-NEXT:  ## DW_AT_location


@.str1 = private unnamed_addr constant [14 x i8] c"m=%u, z_s=%d\0A\00"
@str = internal constant [21 x i8] c"Failing test vector:\00"

define i64 @gcd(i64 %a, i64 %b) nounwind readnone optsize noinline ssp {
entry:
  tail call void @llvm.dbg.value(metadata !{i64 %a}, i64 0, metadata !10), !dbg !18
  tail call void @llvm.dbg.value(metadata !{i64 %b}, i64 0, metadata !11), !dbg !19
  br label %while.body, !dbg !20

while.body:                                       ; preds = %while.body, %entry
  %b.addr.0 = phi i64 [ %b, %entry ], [ %rem, %while.body ]
  %a.addr.0 = phi i64 [ %a, %entry ], [ %b.addr.0, %while.body ]
  %rem = srem i64 %a.addr.0, %b.addr.0, !dbg !21
  %cmp = icmp eq i64 %rem, 0, !dbg !23
  br i1 %cmp, label %if.then, label %while.body, !dbg !23

if.then:                                          ; preds = %while.body
  tail call void @llvm.dbg.value(metadata !{i64 %rem}, i64 0, metadata !12), !dbg !21
  ret i64 %b.addr.0, !dbg !23
}

define i32 @main() nounwind optsize ssp {
entry:
  %call = tail call i32 @rand() nounwind optsize, !dbg !24
  tail call void @llvm.dbg.value(metadata !{i32 %call}, i64 0, metadata !14), !dbg !24
  %cmp = icmp ugt i32 %call, 21, !dbg !25
  br i1 %cmp, label %cond.true, label %cond.end, !dbg !25

cond.true:                                        ; preds = %entry
  %call1 = tail call i32 @rand() nounwind optsize, !dbg !25
  br label %cond.end, !dbg !25

cond.end:                                         ; preds = %entry, %cond.true
  %cond = phi i32 [ %call1, %cond.true ], [ %call, %entry ], !dbg !25
  tail call void @llvm.dbg.value(metadata !{i32 %cond}, i64 0, metadata !17), !dbg !25
  %conv = sext i32 %cond to i64, !dbg !26
  %conv5 = zext i32 %call to i64, !dbg !26
  %call6 = tail call i64 @gcd(i64 %conv, i64 %conv5) optsize, !dbg !26
  %cmp7 = icmp eq i64 %call6, 0
  br i1 %cmp7, label %return, label %if.then, !dbg !26

if.then:                                          ; preds = %cond.end
  %puts = tail call i32 @puts(i8* getelementptr inbounds ([21 x i8]* @str, i64 0, i64 0))
  %call12 = tail call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([14 x i8]* @.str1, i64 0, i64 0), i32 %call, i32 %cond) nounwind optsize, !dbg !26
  ret i32 1, !dbg !27

return:                                           ; preds = %cond.end
  ret i32 0, !dbg !27
}

declare i32 @rand() optsize

declare i32 @printf(i8* nocapture, ...) nounwind optsize

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

declare i32 @puts(i8* nocapture) nounwind

!llvm.dbg.cu = !{!2}

!0 = metadata !{i32 786478, metadata !1, metadata !"gcd", metadata !"gcd", metadata !"", metadata !1, i32 5, metadata !3, i1 false, i1 true, i32 0, i32 0, i32 0, i32 256, i1 true, i64 (i64, i64)* @gcd, null, null, metadata !29, i32 0} ; [ DW_TAG_subprogram ]
!1 = metadata !{i32 786473, metadata !31} ; [ DW_TAG_file_type ]
!2 = metadata !{i32 786449, metadata !31, i32 12, metadata !"clang version 2.9 (trunk 124117)", i1 true, metadata !"", i32 0, null, null, metadata !28, null,  null, null} ; [ DW_TAG_compile_unit ]
!3 = metadata !{i32 786453, metadata !1, metadata !1, metadata !"", i32 0, i64 0, i64 0, i32 0, i32 0, i32 0, metadata !4, i32 0, i32 0} ; [ DW_TAG_subroutine_type ]
!4 = metadata !{metadata !5}
!5 = metadata !{i32 786468, null, metadata !2, metadata !"long int", i32 0, i64 64, i64 64, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ]
!6 = metadata !{i32 786478, metadata !1, metadata !"main", metadata !"main", metadata !"", metadata !1, i32 25, metadata !7, i1 false, i1 true, i32 0, i32 0, i32 0, i32 0, i1 true, i32 ()* @main, null, null, metadata !30, i32 0} ; [ DW_TAG_subprogram ]
!7 = metadata !{i32 786453, metadata !1, metadata !1, metadata !"", i32 0, i64 0, i64 0, i32 0, i32 0, i32 0, metadata !8, i32 0, i32 0} ; [ DW_TAG_subroutine_type ]
!8 = metadata !{metadata !9}
!9 = metadata !{i32 786468, null, metadata !2, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ]
!10 = metadata !{i32 786689, metadata !0, metadata !"a", metadata !1, i32 5, metadata !5, i32 0, null} ; [ DW_TAG_arg_variable ]
!11 = metadata !{i32 786689, metadata !0, metadata !"b", metadata !1, i32 5, metadata !5, i32 0, null} ; [ DW_TAG_arg_variable ]
!12 = metadata !{i32 786688, metadata !13, metadata !"c", metadata !1, i32 6, metadata !5, i32 0, null} ; [ DW_TAG_auto_variable ]
!13 = metadata !{i32 786443, metadata !1, metadata !0, i32 5, i32 52, i32 0} ; [ DW_TAG_lexical_block ]
!14 = metadata !{i32 786688, metadata !15, metadata !"m", metadata !1, i32 26, metadata !16, i32 0, null} ; [ DW_TAG_auto_variable ]
!15 = metadata !{i32 786443, metadata !1, metadata !6, i32 25, i32 12, i32 2} ; [ DW_TAG_lexical_block ]
!16 = metadata !{i32 786468, null, metadata !2, metadata !"unsigned int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 7} ; [ DW_TAG_base_type ]
!17 = metadata !{i32 786688, metadata !15, metadata !"z_s", metadata !1, i32 27, metadata !9, i32 0, null} ; [ DW_TAG_auto_variable ]
!18 = metadata !{i32 5, i32 41, metadata !0, null}
!19 = metadata !{i32 5, i32 49, metadata !0, null}
!20 = metadata !{i32 7, i32 5, metadata !13, null}
!21 = metadata !{i32 8, i32 9, metadata !22, null}
!22 = metadata !{i32 786443, metadata !1, metadata !13, i32 7, i32 14, i32 1} ; [ DW_TAG_lexical_block ]
!23 = metadata !{i32 9, i32 9, metadata !22, null}
!24 = metadata !{i32 26, i32 38, metadata !15, null}
!25 = metadata !{i32 27, i32 38, metadata !15, null}
!26 = metadata !{i32 28, i32 9, metadata !15, null}
!27 = metadata !{i32 30, i32 1, metadata !15, null}
!28 = metadata !{metadata !0, metadata !6}
!29 = metadata !{metadata !10, metadata !11, metadata !12}
!30 = metadata !{metadata !14, metadata !17}
!31 = metadata !{metadata !"rem_small.c", metadata !"/private/tmp"}