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[libclang] Expose aligned() attribute. 

Summary:
This is useful because otherwise there's no easy way to distinguish #pragma
packed(N) from attribute(packed, aligned(N)) that isn't looking at field
offsets (since pragma packed() also creates a packed attribute).

Reviewers: Anastasia, arphaman, serge-sans-paille

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D59299

llvm-svn: 356062
This commit is contained in:
Emilio Cobos Alvarez 2019-03-13 16:16:54 +00:00
parent 7d546aba6c
commit cd74127d28
5 changed files with 19 additions and 2 deletions
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1
clang/bindings/python/clang/cindex.py
View File

@ -1345,6 +1345,7 @@ CursorKind.DLLIMPORT_ATTR = CursorKind(419)
CursorKind.CONVERGENT_ATTR = CursorKind(438)
CursorKind.WARN_UNUSED_ATTR = CursorKind(439)
CursorKind.WARN_UNUSED_RESULT_ATTR = CursorKind(440)
CursorKind.ALIGNED_ATTR = CursorKind(441)
###
# Preprocessing

5
clang/include/clang-c/Index.h
View File

@ -32,7 +32,7 @@
* compatible, thus CINDEX_VERSION_MAJOR is expected to remain stable.
*/
#define CINDEX_VERSION_MAJOR 0
#define CINDEX_VERSION_MINOR 53
#define CINDEX_VERSION_MINOR 54
#define CINDEX_VERSION_ENCODE(major, minor) ( \
((major) * 10000) \
@ -2589,7 +2589,8 @@ enum CXCursorKind {
CXCursor_ConvergentAttr = 438,
CXCursor_WarnUnusedAttr = 439,
CXCursor_WarnUnusedResultAttr = 440,
CXCursor_LastAttr = CXCursor_WarnUnusedResultAttr,
CXCursor_AlignedAttr = 441,
CXCursor_LastAttr = CXCursor_AlignedAttr,
/* Preprocessing */
CXCursor_PreprocessingDirective = 500,

12
clang/test/Index/attributes.c
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@ -20,6 +20,14 @@ struct __attribute__((warn_unused)) WarnUnused {
int b;
};
struct __attribute__((aligned(64))) Aligned1 {
int c;
};
struct Aligned2 {
int c;
} __attribute__((aligned(64)));
// CHECK: attributes.c:3:32: StructDecl=Test2:3:32 (Definition) Extent=[3:1 - 5:2]
// CHECK: attributes.c:3:23: attribute(packed)=packed Extent=[3:23 - 3:29]
// CHECK: attributes.c:4:8: FieldDecl=a:4:8 (Definition) Extent=[4:3 - 4:9] [access=public]
@ -39,3 +47,7 @@ struct __attribute__((warn_unused)) WarnUnused {
// CHECK: attributes.c:17:44: attribute(warn_unused_result)= Extent=[17:44 - 17:62]
// CHECK: attributes.c:19:37: StructDecl=WarnUnused:19:37 (Definition) Extent=[19:1 - 21:2]
// CHECK: attributes.c:19:23: attribute(warn_unused)= Extent=[19:23 - 19:34]
// CHECK: attributes.c:23:37: StructDecl=Aligned1:23:37 (Definition) Extent=[23:1 - 25:2]
// CHECK: attributes.c:23:23: attribute(aligned)= Extent=[23:23 - 23:34]
// CHECK: attributes.c:27:8: StructDecl=Aligned2:27:8 (Definition) Extent=[27:1 - 29:2]
// CHECK: attributes.c:29:18: attribute(aligned)= Extent=[29:18 - 29:29]

2
clang/tools/libclang/CIndex.cpp
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@ -5484,6 +5484,8 @@ CXString clang_getCursorKindSpelling(enum CXCursorKind Kind) {
return cxstring::createRef("attribute(warn_unused)");
case CXCursor_WarnUnusedResultAttr:
return cxstring::createRef("attribute(warn_unused_result)");
case CXCursor_AlignedAttr:
return cxstring::createRef("attribute(aligned)");
}
llvm_unreachable("Unhandled CXCursorKind");

1
clang/tools/libclang/CXCursor.cpp
View File

@ -81,6 +81,7 @@ static CXCursorKind GetCursorKind(const Attr *A) {
case attr::Convergent: return CXCursor_ConvergentAttr;
case attr::WarnUnused: return CXCursor_WarnUnusedAttr;
case attr::WarnUnusedResult: return CXCursor_WarnUnusedResultAttr;
case attr::Aligned: return CXCursor_AlignedAttr;
}
return CXCursor_UnexposedAttr;