[PATCH] D51822: Support generating unique identifiers for Stmt objects
George Karpenkov via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Fri Sep 7 17:17:06 PDT 2018
george.karpenkov created this revision.
george.karpenkov added reviewers: NoQ, rsmith, bogner, aprantl, arphaman.
Unlike pointer values, those identifiers are reproducible between the runs.
https://reviews.llvm.org/D51822
Files:
clang/include/clang/AST/Stmt.h
clang/lib/AST/Stmt.cpp
Index: clang/lib/AST/Stmt.cpp
===================================================================
--- clang/lib/AST/Stmt.cpp
+++ clang/lib/AST/Stmt.cpp
@@ -302,6 +302,14 @@
llvm_unreachable("unknown statement kind");
}
+int64_t Stmt::getID(const ASTContext &Context) const {
+ Optional<int64_t> Out = Context.getAllocator().identifyObject(this);
+ assert(Out && "Wrong allocator used");
+ assert(*Out % alignof(Stmt) == 0 && "Wrong alignment information");
+ return *Out / alignof(Stmt);
+
+}
+
CompoundStmt::CompoundStmt(ArrayRef<Stmt *> Stmts, SourceLocation LB,
SourceLocation RB)
: Stmt(CompoundStmtClass), LBraceLoc(LB), RBraceLoc(RB) {
Index: clang/include/clang/AST/Stmt.h
===================================================================
--- clang/include/clang/AST/Stmt.h
+++ clang/include/clang/AST/Stmt.h
@@ -413,6 +413,9 @@
void dump(raw_ostream &OS, SourceManager &SM) const;
void dump(raw_ostream &OS) const;
+ /// \return Unique reproducible object identifier
+ int64_t getID(const ASTContext &Context) const;
+
/// dumpColor - same as dump(), but forces color highlighting.
void dumpColor() const;
-------------- next part --------------
A non-text attachment was scrubbed...
Name: D51822.164547.patch
Type: text/x-patch
Size: 1178 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/cfe-commits/attachments/20180908/e1b47233/attachment.bin>
More information about the cfe-commits
mailing list