Remove threshold for inserting lifetime markers for named temporaries
Now that TailRecursionElimination has been fixed with r222354, the
threshold on size for lifetime marker insertion can be removed. This
only affects named temporary though, as the patch for unnamed temporaries
is still in progress.
My previous commit (r222993) was not handling debuginfo correctly, but
this could only be seen with some asan tests. Basically, lifetime markers
are just instrumentation for the compiler's usage and should not affect
debug information; however, the cleanup infrastructure was assuming it
contained only destructors, i.e. actual code to be executed, and was
setting the breakpoint for the end of the function to the closing '}', and
not the return statement, in order to show some destructors have been
called when leaving the function. This is wrong when the cleanups are only
lifetime markers, and this is now fixed.
llvm-svn: 234581
diff --git a/clang/lib/CodeGen/CodeGenFunction.h b/clang/lib/CodeGen/CodeGenFunction.h
index 7a8f9b2..0ab1e5e 100644
--- a/clang/lib/CodeGen/CodeGenFunction.h
+++ b/clang/lib/CodeGen/CodeGenFunction.h
@@ -1741,6 +1741,9 @@
void EmitCXXTemporary(const CXXTemporary *Temporary, QualType TempType,
llvm::Value *Ptr);
+ llvm::Value *EmitLifetimeStart(uint64_t Size, llvm::Value *Addr);
+ void EmitLifetimeEnd(llvm::Value *Size, llvm::Value *Addr);
+
llvm::Value *EmitCXXNewExpr(const CXXNewExpr *E);
void EmitCXXDeleteExpr(const CXXDeleteExpr *E);