diff options
| author | Douglas Gregor <dgregor@apple.com> | 2010-05-15 00:13:29 +0000 |
|---|---|---|
| committer | Douglas Gregor <dgregor@apple.com> | 2010-05-15 00:13:29 +0000 |
| commit | 3c9034cb7ff1d6c1e4ecd1b44c98f553df013c7c (patch) | |
| tree | 51a260b4bf4837766cfd3d2f06de837b8ffc08df /lib/Frontend/PCHWriterStmt.cpp | |
| parent | 67d438d39a1cc37c372a2684dc354f58d0169bb1 (diff) | |
Recognize when the named return value optimization applies in a
"return" statement and mark the corresponding CXXConstructExpr as
elidable. Teach CodeGen that eliding a temporary is different from
eliding an object construction.
This is just a baby step toward NRVO.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103849 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Frontend/PCHWriterStmt.cpp')
| -rw-r--r-- | lib/Frontend/PCHWriterStmt.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/Frontend/PCHWriterStmt.cpp b/lib/Frontend/PCHWriterStmt.cpp index 9a361d499c..a7f73a17fa 100644 --- a/lib/Frontend/PCHWriterStmt.cpp +++ b/lib/Frontend/PCHWriterStmt.cpp @@ -873,6 +873,7 @@ void PCHStmtWriter::VisitCXXConstructExpr(CXXConstructExpr *E) { Record.push_back(E->getNumArgs()); for (unsigned I = 0, N = E->getNumArgs(); I != N; ++I) Writer.WriteSubStmt(E->getArg(I)); + Record.push_back(E->getConstructionKind()); // FIXME: stable encoding Code = pch::EXPR_CXX_CONSTRUCT; } |