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| author | Aleksandr Urakov <aleksandr.urakov@jetbrains.com> | 2018-07-31 08:27:06 +0000 |
|---|---|---|
| committer | Aleksandr Urakov <aleksandr.urakov@jetbrains.com> | 2018-07-31 08:27:06 +0000 |
| commit | cd5b56f4ccdd9fe19700b9ea45bf754fe34648a5 (patch) | |
| tree | a2cf2b18c782aaca37cd3783cc67c90459d834ae /test/CodeGenCXX/Inputs | |
| parent | a7a88118684e7ea75ae229b1ae9b2ac31c7d5fcc (diff) | |
Improve support of PDB as an external layout source
Summary:
This patch improves support of PDB as an external layout source
in the next cases:
- Multiple non-virtual inheritance from packed base classes. When using
external layout, there's no need to align `NonVirtualSize` of a base class.
It may cause an overlapping when the next base classes will be layouted
(but there is a slightly different case in the test because I can't find
a way to specify a base offset);
- Support of nameless structs and unions. There is no info about nameless child
structs and unions in Microsoft cl-emitted PDBs. Instead all its fields
are just treated as outer structure's (union's) fields. This also causes
a fields overlapping, and makes it possible for unions to have fields located
at a non-zero offset.
Reviewers: rsmith, zturner, rnk, mstorsjo, majnemer
Reviewed By: rnk
Subscribers: cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D49871
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@338353 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGenCXX/Inputs')
| -rw-r--r-- | test/CodeGenCXX/Inputs/override-layout-nameless-struct-union.layout | 16 | ||||
| -rw-r--r-- | test/CodeGenCXX/Inputs/override-layout-packed-base.layout | 18 |
2 files changed, 34 insertions, 0 deletions
diff --git a/test/CodeGenCXX/Inputs/override-layout-nameless-struct-union.layout b/test/CodeGenCXX/Inputs/override-layout-nameless-struct-union.layout new file mode 100644 index 0000000000..9eb4d244bd --- /dev/null +++ b/test/CodeGenCXX/Inputs/override-layout-nameless-struct-union.layout @@ -0,0 +1,16 @@ + +*** Dumping AST Record Layout +Type: struct S + +Layout: <ASTRecordLayout + Size:64 + Alignment:32 + FieldOffsets: [0, 32, 32]> + +*** Dumping AST Record Layout +Type: union U + +Layout: <ASTRecordLayout + Size:96 + Alignment:32 + FieldOffsets: [0, 0, 32, 64, 68, 73]> diff --git a/test/CodeGenCXX/Inputs/override-layout-packed-base.layout b/test/CodeGenCXX/Inputs/override-layout-packed-base.layout new file mode 100644 index 0000000000..949215ab84 --- /dev/null +++ b/test/CodeGenCXX/Inputs/override-layout-packed-base.layout @@ -0,0 +1,18 @@ + +*** Dumping AST Record Layout +Type: class B<0> + +Layout: <ASTRecordLayout + FieldOffsets: [0, 32]> + +*** Dumping AST Record Layout +Type: class B<1> + +Layout: <ASTRecordLayout + FieldOffsets: [0, 32]> + +*** Dumping AST Record Layout +Type: class C + +Layout: <ASTRecordLayout + FieldOffsets: [80]> |