[Reproducers] Capture return values of functions returning by ptr/ref

For some reason I had convinced myself that functions returning by
pointer or reference do not require recording their result. However,
after further considering I don't see how that could work, at least not
with the current implementation. Interestingly enough, the reproducer
instrumentation already (mostly) accounts for this, though the
lldb-instr tool did not.

This patch adds the missing macros and updates the lldb-instr tool.

Differential revision: https://reviews.llvm.org/D60178

llvm-svn: 357639

2 files changed, 10 insertions, 0 deletions

diff --git a/lldb/lit/tools/lldb-instr/Inputs/foo.cpp b/lldb/lit/tools/lldb-instr/Inputs/foo.cpp
index 36a73236a42..981b911eee2 100644
--- a/lldb/lit/tools/lldb-instr/Inputs/foo.cpp
+++ b/lldb/lit/tools/lldb-instr/Inputs/foo.cpp
@@ -16,3 +16,11 @@ Foo Foo::H() { return Foo(); }
 void Foo::I() const { MACRO_FOO; }
 Bar Foo::J() const { return MACRO_BAR(Bar()); }
 Bar Foo::K(void *v) const { return Bar(); }
+Bar &Foo::L() const {
+  Bar *b = new Bar();
+  return *b;
+};
+Bar *Foo::M() const {
+  Bar *b = new Bar();
+  return b;
+};
diff --git a/lldb/lit/tools/lldb-instr/Inputs/foo.h b/lldb/lit/tools/lldb-instr/Inputs/foo.h
index 9e2608e2b9e..fb76e046e02 100644
--- a/lldb/lit/tools/lldb-instr/Inputs/foo.h
+++ b/lldb/lit/tools/lldb-instr/Inputs/foo.h
@@ -14,4 +14,6 @@ struct Foo {
   void I() const;
   Bar J() const;
   Bar K(void *v) const;
+  Bar &L() const;
+  Bar *M() const;
 };