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llvm-mirror/test/CodeGen/ARM/2011-01-19-MergedGlobalDbg.ll
Manman Ren 6edff4edb0 Attempt to recover gdb bot after r174445. 
Failure: undefined symbol 'Lline_table_start0'.
Root-cause: we use a symbol subtraction to calculate at_stmt_list, but
the line table entries are not dumped in the assembly.
Fix: use zero instead of a symbol subtraction for Compile Unit 0.

llvm-svn: 174479
2013-02-06 00:59:41 +00:00

126 lines
7.7 KiB
LLVM
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; RUN: llc < %s | FileCheck %s
target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:32:64-v128:32:128-a0:0:32-n32"
target triple = "thumbv7-apple-darwin10"
@x1 = internal global i8 1, align 1
@x2 = internal global i8 1, align 1
@x3 = internal global i8 1, align 1
@x4 = internal global i8 1, align 1
@x5 = global i8 1, align 1
; Check debug info output for merged global.
; DW_AT_location
; DW_OP_addr
; DW_OP_plus
; .long __MergedGlobals
; DW_OP_constu
; offset
;CHECK: .long Lset6
;CHECK-NEXT: @ DW_AT_type
;CHECK-NEXT: @ DW_AT_decl_file
;CHECK-NEXT: @ DW_AT_decl_line
;CHECK-NEXT: @ DW_AT_location
;CHECK-NEXT: .byte 3
;CHECK-NEXT: .long __MergedGlobals
;CHECK-NEXT: .byte 16
;CHECK-NEXT: .byte 1
;CHECK-NEXT: .byte 34
define zeroext i8 @get1(i8 zeroext %a) nounwind optsize {
entry:
tail call void @llvm.dbg.value(metadata !{i8 %a}, i64 0, metadata !10), !dbg !30
%0 = load i8* @x1, align 4, !dbg !30
tail call void @llvm.dbg.value(metadata !{i8 %0}, i64 0, metadata !11), !dbg !30
store i8 %a, i8* @x1, align 4, !dbg !30
ret i8 %0, !dbg !31
}
declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
define zeroext i8 @get2(i8 zeroext %a) nounwind optsize {
entry:
tail call void @llvm.dbg.value(metadata !{i8 %a}, i64 0, metadata !18), !dbg !32
%0 = load i8* @x2, align 4, !dbg !32
tail call void @llvm.dbg.value(metadata !{i8 %0}, i64 0, metadata !19), !dbg !32
store i8 %a, i8* @x2, align 4, !dbg !32
ret i8 %0, !dbg !33
}
define zeroext i8 @get3(i8 zeroext %a) nounwind optsize {
entry:
tail call void @llvm.dbg.value(metadata !{i8 %a}, i64 0, metadata !21), !dbg !34
%0 = load i8* @x3, align 4, !dbg !34
tail call void @llvm.dbg.value(metadata !{i8 %0}, i64 0, metadata !22), !dbg !34
store i8 %a, i8* @x3, align 4, !dbg !34
ret i8 %0, !dbg !35
}
define zeroext i8 @get4(i8 zeroext %a) nounwind optsize {
entry:
tail call void @llvm.dbg.value(metadata !{i8 %a}, i64 0, metadata !24), !dbg !36
%0 = load i8* @x4, align 4, !dbg !36
tail call void @llvm.dbg.value(metadata !{i8 %0}, i64 0, metadata !25), !dbg !36
store i8 %a, i8* @x4, align 4, !dbg !36
ret i8 %0, !dbg !37
}
define zeroext i8 @get5(i8 zeroext %a) nounwind optsize {
entry:
tail call void @llvm.dbg.value(metadata !{i8 %a}, i64 0, metadata !27), !dbg !38
%0 = load i8* @x5, align 4, !dbg !38
tail call void @llvm.dbg.value(metadata !{i8 %0}, i64 0, metadata !28), !dbg !38
store i8 %a, i8* @x5, align 4, !dbg !38
ret i8 %0, !dbg !39
}
!llvm.dbg.sp = !{!0, !6, !7, !8, !9}
!llvm.dbg.lv.get1 = !{!10, !11}
!llvm.dbg.gv = !{!13, !14, !15, !16, !17}
!llvm.dbg.lv.get2 = !{!18, !19}
!llvm.dbg.lv.get3 = !{!21, !22}
!llvm.dbg.lv.get4 = !{!24, !25}
!llvm.dbg.lv.get5 = !{!27, !28}
!0 = metadata !{i32 589870, i32 0, metadata !1, metadata !"get1", metadata !"get1", metadata !"get1", metadata !1, i32 4, metadata !3, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, i8 (i8)* @get1} ; [ DW_TAG_subprogram ]
!1 = metadata !{i32 589865, metadata !"foo.c", metadata !"/tmp/", metadata !2} ; [ DW_TAG_file_type ]
!2 = metadata !{i32 589841, i32 0, i32 1, metadata !"foo.c", metadata !"/tmp/", metadata !"4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2369.8)", i1 true, i1 true, metadata !"", i32 0} ; [ DW_TAG_compile_unit ]
!3 = metadata !{i32 589845, metadata !1, metadata !"", metadata !1, i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !4, i32 0, null} ; [ DW_TAG_subroutine_type ]
!4 = metadata !{metadata !5, metadata !5}
!5 = metadata !{i32 589860, metadata !1, metadata !"_Bool", metadata !1, i32 0, i64 8, i64 8, i64 0, i32 0, i32 2} ; [ DW_TAG_base_type ]
!6 = metadata !{i32 589870, i32 0, metadata !1, metadata !"get2", metadata !"get2", metadata !"get2", metadata !1, i32 7, metadata !3, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, i8 (i8)* @get2} ; [ DW_TAG_subprogram ]
!7 = metadata !{i32 589870, i32 0, metadata !1, metadata !"get3", metadata !"get3", metadata !"get3", metadata !1, i32 10, metadata !3, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, i8 (i8)* @get3} ; [ DW_TAG_subprogram ]
!8 = metadata !{i32 589870, i32 0, metadata !1, metadata !"get4", metadata !"get4", metadata !"get4", metadata !1, i32 13, metadata !3, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, i8 (i8)* @get4} ; [ DW_TAG_subprogram ]
!9 = metadata !{i32 589870, i32 0, metadata !1, metadata !"get5", metadata !"get5", metadata !"get5", metadata !1, i32 16, metadata !3, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, i8 (i8)* @get5} ; [ DW_TAG_subprogram ]
!10 = metadata !{i32 590081, metadata !0, metadata !"a", metadata !1, i32 4, metadata !5, i32 0} ; [ DW_TAG_arg_variable ]
!11 = metadata !{i32 590080, metadata !12, metadata !"b", metadata !1, i32 4, metadata !5, i32 0} ; [ DW_TAG_auto_variable ]
!12 = metadata !{i32 589835, metadata !0, i32 4, i32 0, metadata !1, i32 0} ; [ DW_TAG_lexical_block ]
!13 = metadata !{i32 589876, i32 0, metadata !1, metadata !"x1", metadata !"x1", metadata !"", metadata !1, i32 3, metadata !5, i1 true, i1 true, i8* @x1} ; [ DW_TAG_variable ]
!14 = metadata !{i32 589876, i32 0, metadata !1, metadata !"x2", metadata !"x2", metadata !"", metadata !1, i32 6, metadata !5, i1 true, i1 true, i8* @x2} ; [ DW_TAG_variable ]
!15 = metadata !{i32 589876, i32 0, metadata !1, metadata !"x3", metadata !"x3", metadata !"", metadata !1, i32 9, metadata !5, i1 true, i1 true, i8* @x3} ; [ DW_TAG_variable ]
!16 = metadata !{i32 589876, i32 0, metadata !1, metadata !"x4", metadata !"x4", metadata !"", metadata !1, i32 12, metadata !5, i1 true, i1 true, i8* @x4} ; [ DW_TAG_variable ]
!17 = metadata !{i32 589876, i32 0, metadata !1, metadata !"x5", metadata !"x5", metadata !"", metadata !1, i32 15, metadata !5, i1 false, i1 true, i8* @x5} ; [ DW_TAG_variable ]
!18 = metadata !{i32 590081, metadata !6, metadata !"a", metadata !1, i32 7, metadata !5, i32 0} ; [ DW_TAG_arg_variable ]
!19 = metadata !{i32 590080, metadata !20, metadata !"b", metadata !1, i32 7, metadata !5, i32 0} ; [ DW_TAG_auto_variable ]
!20 = metadata !{i32 589835, metadata !6, i32 7, i32 0, metadata !1, i32 1} ; [ DW_TAG_lexical_block ]
!21 = metadata !{i32 590081, metadata !7, metadata !"a", metadata !1, i32 10, metadata !5, i32 0} ; [ DW_TAG_arg_variable ]
!22 = metadata !{i32 590080, metadata !23, metadata !"b", metadata !1, i32 10, metadata !5, i32 0} ; [ DW_TAG_auto_variable ]
!23 = metadata !{i32 589835, metadata !7, i32 10, i32 0, metadata !1, i32 2} ; [ DW_TAG_lexical_block ]
!24 = metadata !{i32 590081, metadata !8, metadata !"a", metadata !1, i32 13, metadata !5, i32 0} ; [ DW_TAG_arg_variable ]
!25 = metadata !{i32 590080, metadata !26, metadata !"b", metadata !1, i32 13, metadata !5, i32 0} ; [ DW_TAG_auto_variable ]
!26 = metadata !{i32 589835, metadata !8, i32 13, i32 0, metadata !1, i32 3} ; [ DW_TAG_lexical_block ]
!27 = metadata !{i32 590081, metadata !9, metadata !"a", metadata !1, i32 16, metadata !5, i32 0} ; [ DW_TAG_arg_variable ]
!28 = metadata !{i32 590080, metadata !29, metadata !"b", metadata !1, i32 16, metadata !5, i32 0} ; [ DW_TAG_auto_variable ]
!29 = metadata !{i32 589835, metadata !9, i32 16, i32 0, metadata !1, i32 4} ; [ DW_TAG_lexical_block ]
!30 = metadata !{i32 4, i32 0, metadata !0, null}
!31 = metadata !{i32 4, i32 0, metadata !12, null}
!32 = metadata !{i32 7, i32 0, metadata !6, null}
!33 = metadata !{i32 7, i32 0, metadata !20, null}
!34 = metadata !{i32 10, i32 0, metadata !7, null}
!35 = metadata !{i32 10, i32 0, metadata !23, null}
!36 = metadata !{i32 13, i32 0, metadata !8, null}
!37 = metadata !{i32 13, i32 0, metadata !26, null}
!38 = metadata !{i32 16, i32 0, metadata !9, null}
!39 = metadata !{i32 16, i32 0, metadata !29, null}
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