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DebugInfo: Fix a bunch of tests that, owing to their compile_unit metadata not including a 13th field, had some subtle behavior.

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Without the 13th field, the "emission kind" field defaults to 0 (which
is not equal to either of the values of the emission kind enum (1 ==
full debug info, 2 == line tables only)).

In this particular instance, the comparison with "FullDebugInfo" was
done when adding elements to the ranges list - so for these test cases
no values were added to the ranges list.

This got weirder when emitting debug_loc entries as the addresses should
be relative to the range of the CU if the CU has only one range (the
reasonable assumption is that if we're emitting debug_loc lists for a CU
that CU has at least one range - but due to the above situation, it has
zero) so the ranges were emitted relative to the start of the section
rather than relative to the start of the CU's singular range.

Fix these tests by accounting for the difference in the description of
debug_loc entries (in some cases making the test ignorant to these
differences, in others adding the extra label difference expression,
etc) or the presence/absence of high/low_pc on the CU, and add the 13th
field to their CUs to enable proper "full debug info" emission here.

In a future commit I'll fix up a bunch of other test cases that are not
so rigorously depending on this behavior, but still doing similarly
weird things due to the missing 13th field.

llvm-svn: 214937
This commit is contained in:
David Blaikie 2014-08-05 23:57:31 +00:00
parent 1ecd6214f0
commit 5d7061d904
4 changed files with 41 additions and 47 deletions
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45
test/CodeGen/ARM/2011-08-02-MergedGlobalDbg.ll
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@ -1,25 +1,23 @@
; RUN: llc < %s | FileCheck %s
; RUN: llc -filetype=obj < %s | llvm-dwarfdump -debug-dump=info - | FileCheck %s
; Check debug info output for merged global.
; DW_AT_location
; DW_OP_addr
; DW_OP_plus
; .long __MergedGlobals
; DW_OP_constu
; offset
;CHECK: .long Lset9
;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
; 4 is byte offset of x2 in __MergedGobals
;CHECK-NEXT: .byte 4
;CHECK-NEXT: .byte 34
; 0x03 DW_OP_addr
; 0x.. .long __MergedGlobals
; 0x10 DW_OP_constu
; 0x.. offset
; 0x22 DW_OP_plus
; CHECK: DW_TAG_variable
; CHECK-NOT: DW_TAG
; CHECK: DW_AT_name {{.*}} "x1"
; CHECK-NOT: {{DW_TAG|NULL}}
; CHECK: DW_AT_location [DW_FORM_exprloc] (<0x8> 03 [[ADDR:.. .. .. ..]] 10 00 22 )
; CHECK: DW_TAG_variable
; CHECK-NOT: DW_TAG
; CHECK: DW_AT_name {{.*}} "x2"
; CHECK-NOT: {{DW_TAG|NULL}}
; CHECK: DW_AT_location [DW_FORM_exprloc] (<0x8> 03 [[ADDR]] 10 04 22 )
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-macosx10.7.0"
@ -75,7 +73,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!49}
!0 = metadata !{i32 786449, metadata !47, i32 12, metadata !"clang", i1 true, metadata !"", i32 0, metadata !48, metadata !48, metadata !40, metadata !41, metadata !48, null} ; [ DW_TAG_compile_unit ]
!0 = metadata !{i32 786449, metadata !47, i32 12, metadata !"clang", i1 true, metadata !"", i32 0, metadata !48, metadata !48, metadata !40, metadata !41, metadata !48, null, i32 1} ; [ DW_TAG_compile_unit ]
!1 = metadata !{i32 786478, metadata !47, metadata !2, metadata !"get1", metadata !"get1", metadata !"", i32 5, metadata !3, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, i32 (i32)* @get1, null, null, metadata !42, i32 5} ; [ DW_TAG_subprogram ] [line 5] [def] [get1]
!2 = metadata !{i32 786473, metadata !47} ; [ DW_TAG_file_type ]
!3 = metadata !{i32 786453, metadata !47, metadata !2, metadata !"", i32 0, i64 0, i64 0, i32 0, i32 0, null, metadata !4, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
@ -97,11 +95,8 @@ declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
!19 = metadata !{i32 786689, metadata !8, metadata !"a", metadata !2, i32 16777230, metadata !5, i32 0, null} ; [ DW_TAG_arg_variable ]
!20 = metadata !{i32 786688, metadata !21, metadata !"b", metadata !2, i32 14, metadata !5, i32 0, null} ; [ DW_TAG_auto_variable ]
!21 = metadata !{i32 786443, metadata !47, metadata !8, i32 14, i32 19, i32 3} ; [ DW_TAG_lexical_block ]
!22 = metadata !{i32 786484, i32 0, metadata !0, metadata !"x5", metadata !"x5", metadata !"", metadata !2, i32 16, metadata !5, i32 0, i32 1, i32* @x5, null} ; [ DW_TAG_variable ]
!23 = metadata !{i32 786484, i32 0, metadata !0, metadata !"x4", metadata !"x4", metadata !"", metadata !2, i32 13, metadata !5, i32 1, i32 1, i32* @x4, null} ; [ DW_TAG_variable ]
!24 = metadata !{i32 786484, i32 0, metadata !0, metadata !"x3", metadata !"x3", metadata !"", metadata !2, i32 10, metadata !5, i32 1, i32 1, i32* @x3, null} ; [ DW_TAG_variable ]
!25 = metadata !{i32 786484, i32 0, metadata !0, metadata !"x2", metadata !"x2", metadata !"", metadata !2, i32 7, metadata !5, i32 1, i32 1, i32* @x2, null} ; [ DW_TAG_variable ]
!26 = metadata !{i32 786484, i32 0, metadata !0, metadata !"x1", metadata !"x1", metadata !"", metadata !2, i32 4, metadata !5, i32 1, i32 1, i32* @x1, null} ; [ DW_TAG_variable ]
!25 = metadata !{i32 786484, i32 0, metadata !0, metadata !"x1", metadata !"x1", metadata !"", metadata !2, i32 4, metadata !5, i32 1, i32 1, i32* @x1, null} ; [ DW_TAG_variable ]
!26 = metadata !{i32 786484, i32 0, metadata !0, metadata !"x2", metadata !"x2", metadata !"", metadata !2, i32 7, metadata !5, i32 1, i32 1, i32* @x2, null} ; [ DW_TAG_variable ]
!27 = metadata !{i32 786689, metadata !9, metadata !"a", metadata !2, i32 16777233, metadata !5, i32 0, null} ; [ DW_TAG_arg_variable ]
!28 = metadata !{i32 786688, metadata !29, metadata !"b", metadata !2, i32 17, metadata !5, i32 0, null} ; [ DW_TAG_auto_variable ]
!29 = metadata !{i32 786443, metadata !47, metadata !9, i32 17, i32 19, i32 4} ; [ DW_TAG_lexical_block ]
@ -116,7 +111,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
!38 = metadata !{i32 17, i32 16, metadata !9, null}
!39 = metadata !{i32 17, i32 32, metadata !29, null}
!40 = metadata !{metadata !1, metadata !6, metadata !7, metadata !8, metadata !9}
!41 = metadata !{metadata !22, metadata !23, metadata !24, metadata !25, metadata !26}
!41 = metadata !{metadata !25, metadata !26}
!42 = metadata !{metadata !10, metadata !11}
!43 = metadata !{metadata !13, metadata !14}
!44 = metadata !{metadata !16, metadata !17}

23
test/CodeGen/ARM/debug-info-sreg2.ll
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@ -1,21 +1,14 @@
; RUN: llc < %s - | FileCheck %s
; RUN: llc < %s - -filetype=obj | llvm-dwarfdump -debug-dump=loc - | FileCheck %s
; Radar 9376013
target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:32-f32:32:32-f64:32:32-v64:32:64-v128:32:128-a0:0:32-n32"
target triple = "thumbv7-apple-macosx10.6.7"
;CHECK-LABEL: Lfunc_begin0:
;CHECK: Ltmp[[K:[0-9]+]]:
;CHECK: Ltmp[[L:[0-9]+]]:
;CHECK-LABEL: Ldebug_loc0:
;CHECK-NEXT: .long Ltmp[[K]]
;CHECK-NEXT: .long Ltmp[[L]]
;CHECK-NEXT: Lset[[N:[0-9]+]] = Ltmp{{[0-9]+}}-Ltmp[[M:[0-9]+]] @ Loc expr size
;CHECK-NEXT: .short Lset[[N]]
;CHECK-NEXT: Ltmp[[M]]:
;CHECK-NEXT: .byte 144 @ super-register
;CHECK-NEXT: @ DW_OP_regx
;CHECK-NEXT: .ascii
;CHECK-NEXT: .byte {{[0-9]+}} @ DW_OP_{{.*}}piece
; Just making sure the first part of the location isn't a repetition of the size of the location description.
; 0x90 DW_OP_regx of super-register
; CHECK: 0x00000000: Beginning address offset:
; CHECK-NEXT: Ending address offset:
; CHECK-NEXT: Location description: 90 {{.. .. .. ..}}
define void @_Z3foov() optsize ssp {
entry:
@ -48,7 +41,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!20}
!0 = metadata !{i32 786449, metadata !18, i32 4, metadata !"clang version 3.0 (trunk 130845)", i1 true, metadata !"", i32 0, metadata !19, metadata !19, metadata !16, null, null, null} ; [ DW_TAG_compile_unit ]
!0 = metadata !{i32 786449, metadata !18, i32 4, metadata !"clang version 3.0 (trunk 130845)", i1 true, metadata !"", i32 0, metadata !19, metadata !19, metadata !16, null, null, null, i32 1} ; [ DW_TAG_compile_unit ]
!1 = metadata !{i32 786478, metadata !18, metadata !2, metadata !"foo", metadata !"foo", metadata !"_Z3foov", i32 5, metadata !3, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, void ()* @_Z3foov, null, null, metadata !17, i32 5} ; [ DW_TAG_subprogram ] [line 5] [def] [foo]
!2 = metadata !{i32 786473, metadata !18} ; [ DW_TAG_file_type ]
!3 = metadata !{i32 786453, metadata !18, metadata !2, metadata !"", i32 0, i64 0, i64 0, i32 0, i32 0, null, metadata !4, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]

14
test/CodeGen/X86/2010-05-26-DotDebugLoc.ll
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@ -26,7 +26,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
!0 = metadata !{i32 786484, i32 0, metadata !1, metadata !"ret", metadata !"ret", metadata !"", metadata !1, i32 7, metadata !3, i1 false, i1 true, null, null} ; [ DW_TAG_variable ]
!1 = metadata !{i32 786473, metadata !36} ; [ DW_TAG_file_type ]
!2 = metadata !{i32 786449, metadata !36, i32 1, metadata !"4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", i1 true, metadata !"", i32 0, metadata !37, metadata !37, metadata !32, metadata !31, metadata !37, metadata !""} ; [ DW_TAG_compile_unit ]
!2 = metadata !{i32 786449, metadata !36, i32 1, metadata !"4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", i1 true, metadata !"", i32 0, metadata !37, metadata !37, metadata !32, metadata !31, metadata !37, metadata !"", i32 1} ; [ DW_TAG_compile_unit ]
!3 = metadata !{i32 786468, metadata !36, metadata !1, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ]
!4 = metadata !{i32 786689, metadata !5, metadata !"x", metadata !1, i32 12, metadata !3, i32 0, null} ; [ DW_TAG_arg_variable ]
!5 = metadata !{i32 786478, metadata !36, metadata !1, metadata !"foo", metadata !"foo", metadata !"foo", i32 13, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i1 false, i1 true, void (i32)* @foo, null, null, metadata !33, i32 13} ; [ DW_TAG_subprogram ]
@ -73,15 +73,19 @@ declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
; CHECK: Ldebug_loc0:
; CHECK-NEXT: .quad Lfunc_begin0
; CHECK-NEXT: .quad [[LABEL]]
; CHECK-NEXT: [[SET1:.*]] = Lfunc_begin0-Lfunc_begin0
; CHECK-NEXT: .quad [[SET1]]
; CHECK-NEXT: [[SET2:.*]] = [[LABEL]]-Lfunc_begin0
; CHECK-NEXT: .quad [[SET2]]
; CHECK-NEXT: Lset{{.*}} = Ltmp{{.*}}-Ltmp{{.*}} ## Loc expr size
; CHECK-NEXT: .short Lset{{.*}}
; CHECK-NEXT: Ltmp{{.*}}:
; CHECK-NEXT: .byte 85
; CHECK-NEXT: Ltmp{{.*}}:
; CHECK-NEXT: .quad [[LABEL]]
; CHECK-NEXT: .quad [[CLOBBER]]
; CHECK-NEXT: [[SET3:.*]] = [[LABEL]]-Lfunc_begin0
; CHECK-NEXT: .quad [[SET3]]
; CHECK-NEXT: [[SET4:.*]] = [[CLOBBER]]-Lfunc_begin0
; CHECK-NEXT: .quad [[SET4]]
; CHECK-NEXT: Lset{{.*}} = Ltmp{{.*}}-Ltmp{{.*}} ## Loc expr size
; CHECK-NEXT: .short Lset{{.*}}
; CHECK-NEXT: Ltmp{{.*}}:

6
test/DebugInfo/X86/dbg-value-range.ll
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@ -22,7 +22,7 @@ declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
!0 = metadata !{i32 786478, metadata !22, metadata !1, metadata !"bar", metadata !"bar", metadata !"", i32 5, metadata !3, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, i32 (%struct.a*)* @bar, null, null, metadata !21, i32 0} ; [ DW_TAG_subprogram ] [line 5] [def] [scope 0] [bar]
!1 = metadata !{i32 786473, metadata !22} ; [ DW_TAG_file_type ]
!2 = metadata !{i32 786449, metadata !22, i32 12, metadata !"clang version 2.9 (trunk 122997)", i1 true, metadata !"", i32 0, metadata !23, metadata !23, metadata !20, null, null, null} ; [ DW_TAG_compile_unit ]
!2 = metadata !{i32 786449, metadata !22, i32 12, metadata !"clang version 2.9 (trunk 122997)", i1 true, metadata !"", i32 0, metadata !23, metadata !23, metadata !20, null, null, null, i32 1} ; [ DW_TAG_compile_unit ]
!3 = metadata !{i32 786453, metadata !22, metadata !1, metadata !"", i32 0, i64 0, i64 0, i32 0, i32 0, null, metadata !4, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!4 = metadata !{metadata !5}
!5 = metadata !{i32 786468, null, metadata !2, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ]
@ -51,8 +51,10 @@ declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
;CHECK-NEXT: [[CLOBBER:Ltmp[0-9]*]]
;CHECK:Ldebug_loc0:
;CHECK-NEXT: Lset{{.*}} =
;CHECK-NEXT: .quad
;CHECK-NEXT: .quad [[CLOBBER]]
;CHECK-NEXT: [[CLOBBER_OFF:Lset.*]] = [[CLOBBER]]-{{.*}}
;CHECK-NEXT: .quad [[CLOBBER_OFF]]
;CHECK-NEXT: Lset{{.*}} = Ltmp{{.*}}-Ltmp{{.*}}
;CHECK-NEXT: .short Lset
;CHECK-NEXT: Ltmp