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| author | Manman Ren <mren@apple.com> | 2013-03-12 18:27:15 +0000 |
|---|---|---|
| committer | Manman Ren <mren@apple.com> | 2013-03-12 18:27:15 +0000 |
| commit | bc3e96f17bb278358cd3976f35b87591a392f5af (patch) | |
| tree | c59c4eefb0e2cf7a67c9d80baf096c58331eb091 /lib/CodeGen/AsmPrinter/DIE.h | |
| parent | 1a5c0510ecb029b7e5d04249cdd4e50b97bf1c3f (diff) | |
| download | llvm-bc3e96f17bb278358cd3976f35b87591a392f5af.tar.gz llvm-bc3e96f17bb278358cd3976f35b87591a392f5af.tar.bz2 llvm-bc3e96f17bb278358cd3976f35b87591a392f5af.tar.xz | |
Debug Info: use DW_FORM_ref_addr instead of DW_FORM_ref4 if the referenced DIE
belongs to a different compile unit.
DW_FORM_ref_addr should be used for cross compile-unit reference.
When compiling a large application, we got a dwarfdump verification error where
abstract_origin points to nowhere.
This error can't be reproduced on any testing case in MultiSource.
We may have other cases where we use DW_FORM_ref4 unconditionally.
rdar://problem/13370501
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176882 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/AsmPrinter/DIE.h')
| -rw-r--r-- | lib/CodeGen/AsmPrinter/DIE.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/CodeGen/AsmPrinter/DIE.h b/lib/CodeGen/AsmPrinter/DIE.h index 35d7959ac1..9907b01ceb 100644 --- a/lib/CodeGen/AsmPrinter/DIE.h +++ b/lib/CodeGen/AsmPrinter/DIE.h @@ -152,6 +152,9 @@ namespace llvm { const std::vector<DIE *> &getChildren() const { return Children; } const SmallVector<DIEValue*, 32> &getValues() const { return Values; } DIE *getParent() const { return Parent; } + /// Climb up the parent chain to get the compile unit DIE this DIE belongs + /// to. + DIE *getCompileUnit() const; void setTag(unsigned Tag) { Abbrev.setTag(Tag); } void setOffset(unsigned O) { Offset = O; } void setSize(unsigned S) { Size = S; } |