Debug Info Finder|Verifier: handle DbgLoc attached to instructions.

Also remove checking of llvm.dbg.sp since it is not used in generating dwarf.

Current state of Finder:
DebugInfoFinder tries to list all debug info MDNodes used in a module. To
list debug info MDNodes used by an instruction, DebugInfoFinder provides
processDeclare, processValue and processLocation to handle DbgDeclareInst,
DbgValueInst and DbgLoc attached to instructions. processModule will go
through all DICompileUnits in llvm.dbg.cu and list debug info MDNodes
used by the CUs.

TODO:
1> Finder has a list of CUs, SPs, Types, Scopes and global variables. We
need to add a list of variables that are used by DbgDeclareInst and
DbgValueInst.
2> MDString fields should be null or isa<MDString> and MDNode fields should be
null or isa<MDNode>. We currently use empty string or int 0 to represent null.
3> Go though Verify functions and make sure that they check field types.
4> Clean up existing testing cases to remove llvm.dbg.sp and make sure each
testing case has a llvm.dbg.cu.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187609 91177308-0d34-0410-b5e6-96231b3b80d8

4 files changed, 8 insertions, 7 deletions

diff --git a/test/DebugInfo/2010-01-05-DbgScope.ll b/test/DebugInfo/2010-01-05-DbgScope.ll
index b21a9c8a01..e421c93211 100644
--- a/test/DebugInfo/2010-01-05-DbgScope.ll
+++ b/test/DebugInfo/2010-01-05-DbgScope.ll
@@ -11,7 +11,7 @@ entry:
 !llvm.dbg.cu = !{!3}
 
 !0 = metadata !{i32 571, i32 3, metadata !1, null}
-!1 = metadata !{i32 458763, metadata !2, i32 1, i32 1}; [DW_TAG_lexical_block ]
+!1 = metadata !{i32 458763, metadata !11, metadata !2, i32 1, i32 1, i32 0}; [DW_TAG_lexical_block ]
 !2 = metadata !{i32 458798, i32 0, metadata !3, metadata !"foo", metadata !"foo", metadata !"foo", i32 561, metadata !4, i1 false, i1 true, i32 0, i32 0, null, i32 0, i32 0, null, null, null, null, i32 0}; [DW_TAG_subprogram ]
 !3 = metadata !{i32 458769, metadata !11, i32 12, metadata !"clang 1.1", i1 true, metadata !"", i32 0, metadata !12, metadata !12, metadata !13, null, null, metadata !""}; [DW_TAG_compile_unit ]
 !4 = metadata !{i32 458773, null, metadata !3, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !5, i32 0}; [DW_TAG_subroutine_type ]
diff --git a/test/DebugInfo/2010-05-03-DisableFramePtr.ll b/test/DebugInfo/2010-05-03-DisableFramePtr.ll
index 7112c4797d..1aa2240c08 100644
--- a/test/DebugInfo/2010-05-03-DisableFramePtr.ll
+++ b/test/DebugInfo/2010-05-03-DisableFramePtr.ll
@@ -17,10 +17,10 @@ return:                                           ; preds = %entry
 declare void @llvm.dbg.declare(metadata, metadata) nounwind readnone
 
 !llvm.dbg.cu = !{!3}
-!0 = metadata !{i32 524545, metadata !1, metadata !"userUPP", metadata !2, i32 7, metadata !6} ; [ DW_TAG_arg_variable ]
+!0 = metadata !{i32 524545, metadata !1, metadata !"userUPP", metadata !2, i32 7, metadata !6, i32 0, null} ; [ DW_TAG_arg_variable ]
 !1 = metadata !{i32 524334, metadata !16, null, metadata !"DisposeDMNotificationUPP", metadata !"DisposeDMNotificationUPP", metadata !"DisposeDMNotificationUPP", i32 7, metadata !4, i1 false, i1 true, i32 0, i32 0, null, i1 false, i32 0, null, null, null, null, i32 0} ; [ DW_TAG_subprogram ]
 !2 = metadata !{i32 524329, metadata !16} ; [ DW_TAG_file_type ]
-!3 = metadata !{i32 524305, metadata !16, i32 1, metadata !"4.2.1 (Based on Apple Inc. build 5658) (LLVM build 9999)", i1 true, metadata !"", i32 0, metadata !17, metadata !17, null, null, null, metadata !""} ; [ DW_TAG_compile_unit ]
+!3 = metadata !{i32 524305, metadata !16, i32 1, metadata !"4.2.1 (Based on Apple Inc. build 5658) (LLVM build 9999)", i1 true, metadata !"", i32 0, metadata !17, metadata !17, metadata !18, null, null, metadata !""} ; [ DW_TAG_compile_unit ]
 !4 = metadata !{i32 524309, metadata !16, metadata !2, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !5, i32 0, null} ; [ DW_TAG_subroutine_type ]
 !5 = metadata !{null, metadata !6}
 !6 = metadata !{i32 524310, metadata !16, metadata !2, metadata !"DMNotificationUPP", i32 6, i64 0, i64 0, i64 0, i32 0, metadata !7} ; [ DW_TAG_typedef ]
@@ -32,6 +32,7 @@ declare void @llvm.dbg.declare(metadata, metadata) nounwind readnone
 !12 = metadata !{i32 524307, metadata !16, metadata !2, metadata !"AEDesc", i32 1, i64 0, i64 0, i64 0, i32 4, null, null, i32 0, null} ; [ DW_TAG_structure_type ]
 !13 = metadata !{i32 7, i32 0, metadata !1, null}
 !14 = metadata !{i32 8, i32 0, metadata !15, null}
-!15 = metadata !{i32 524299, metadata !1, i32 7, i32 0} ; [ DW_TAG_lexical_block ]
+!15 = metadata !{i32 524299, metadata !16, metadata !1, i32 7, i32 0, i32 0} ; [ DW_TAG_lexical_block ]
 !16 = metadata !{metadata !"t.c", metadata !"/Users/echeng/LLVM/radars/r7937664/"}
 !17 = metadata !{i32 0}
+!18 = metadata !{metadata !1}
diff --git a/test/DebugInfo/2010-05-10-MultipleCU.ll b/test/DebugInfo/2010-05-10-MultipleCU.ll
index 71e4bdc032..da0b2e8304 100644
--- a/test/DebugInfo/2010-05-10-MultipleCU.ll
+++ b/test/DebugInfo/2010-05-10-MultipleCU.ll
@@ -31,7 +31,7 @@ return:
 !17 = metadata !{metadata !10}
 
 !0 = metadata !{i32 3, i32 0, metadata !1, null}
-!1 = metadata !{i32 786443, metadata !2, i32 2, i32 0} ; [ DW_TAG_lexical_block ]
+!1 = metadata !{i32 786443, metadata !18, metadata !2, i32 2, i32 0, i32 0} ; [ DW_TAG_lexical_block ]
 !2 = metadata !{i32 786478, metadata !18, metadata !3, metadata !"foo", metadata !"foo", metadata !"foo", i32 2, metadata !5, i1 false, i1 true, i32 0, i32 0, null, i1 false, i1 false, i32 ()* @foo, null, null, null, i32 0} ; [ DW_TAG_subprogram ]
 !3 = metadata !{i32 786473, metadata !18} ; [ DW_TAG_file_type ]
 !4 = metadata !{i32 786449, metadata !18, i32 1, metadata !"4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", i1 false, metadata !"", i32 0, metadata !19, metadata !19, metadata !16, null, null, metadata !""} ; [ DW_TAG_compile_unit ]
@@ -39,7 +39,7 @@ return:
 !6 = metadata !{metadata !7}
 !7 = metadata !{i32 786468, metadata !18, metadata !3, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ]
 !8 = metadata !{i32 3, i32 0, metadata !9, null}
-!9 = metadata !{i32 786443, metadata !10, i32 2, i32 0} ; [ DW_TAG_lexical_block ]
+!9 = metadata !{i32 786443, metadata !20, metadata !10, i32 2, i32 0, i32 0} ; [ DW_TAG_lexical_block ]
 !10 = metadata !{i32 786478, metadata !20, metadata !11, metadata !"bar", metadata !"bar", metadata !"bar", i32 2, metadata !13, i1 false, i1 true, i32 0, i32 0, null, i1 false, i1 false, i32 ()* @bar, null, null, null, i32 0} ; [ DW_TAG_subprogram ]
 !11 = metadata !{i32 786473, metadata !20} ; [ DW_TAG_file_type ]
 !12 = metadata !{i32 786449, metadata !20, i32 1, metadata !"4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", i1 false, metadata !"", i32 0, metadata !19, metadata !19, metadata !17, null, null, metadata !""} ; [ DW_TAG_compile_unit ]
diff --git a/test/DebugInfo/X86/2010-04-13-PubType.ll b/test/DebugInfo/X86/2010-04-13-PubType.ll
index d6081ede7e..0ec7f59583 100644
--- a/test/DebugInfo/X86/2010-04-13-PubType.ll
+++ b/test/DebugInfo/X86/2010-04-13-PubType.ll
@@ -46,7 +46,7 @@ declare void @llvm.dbg.declare(metadata, metadata) nounwind readnone
 !13 = metadata !{i32 7, i32 0, metadata !1, null}
 !14 = metadata !{i32 786689, metadata !1, metadata !"y", metadata !2, i32 7, metadata !9, i32 0, null} ; [ DW_TAG_arg_variable ]
 !15 = metadata !{i32 7, i32 0, metadata !16, null}
-!16 = metadata !{i32 786443, metadata !1, i32 7, i32 0} ; [ DW_TAG_lexical_block ]
+!16 = metadata !{i32 786443, metadata !18, metadata !1, i32 7, i32 0, i32 0} ; [ DW_TAG_lexical_block ]
 !17 = metadata !{metadata !1}
 !18 = metadata !{metadata !"a.c", metadata !"/tmp/"}
 !19 = metadata !{i32 0}