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.

llvm-svn: 187609

1 files changed, 4 insertions, 3 deletions

diff --git a/llvm/test/DebugInfo/2010-05-03-DisableFramePtr.ll b/llvm/test/DebugInfo/2010-05-03-DisableFramePtr.ll
index 7112c4797d1..1aa2240c086 100644
--- a/llvm/test/DebugInfo/2010-05-03-DisableFramePtr.ll
+++ b/llvm/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}