[debuginfo-tests] r313401 - [debuginfo-tests] Add string NRVO test for PR34513

Reid Kleckner via llvm-commits llvm-commits at lists.llvm.org
Fri Sep 15 14:59:39 PDT 2017


Author: rnk
Date: Fri Sep 15 14:59:39 2017
New Revision: 313401

URL: http://llvm.org/viewvc/llvm-project?rev=313401&view=rev
Log:
[debuginfo-tests] Add string NRVO test for PR34513

It should pass in -O0 and -O1 after r313400 and r313399.

Added:
    debuginfo-tests/trunk/nrvo-string.cpp

Added: debuginfo-tests/trunk/nrvo-string.cpp
URL: http://llvm.org/viewvc/llvm-project/debuginfo-tests/trunk/nrvo-string.cpp?rev=313401&view=auto
==============================================================================
--- debuginfo-tests/trunk/nrvo-string.cpp (added)
+++ debuginfo-tests/trunk/nrvo-string.cpp Fri Sep 15 14:59:39 2017
@@ -0,0 +1,27 @@
+// This ensures that DW_OP_deref is inserted when necessary, such as when NRVO
+// of a string object occurs in C++.
+//
+// RUN: %clangxx -O0 -fno-exceptions %target_itanium_abi_host_triple %s -o %t.out -g
+// RUN: %test_debuginfo %s %t.out
+// RUN: %clangxx -O1 -fno-exceptions %target_itanium_abi_host_triple %s -o %t.out -g
+// RUN: %test_debuginfo %s %t.out
+//
+// PR34513
+
+struct string {
+  string() {}
+  string(int i) : i(i) {}
+  ~string() {}
+  int i = 0;
+};
+string get_string() {
+  string unused;
+  string result = 3;
+// DEBUGGER: break 21
+  return result;
+}
+int main() { get_string(); }
+
+// DEBUGGER: r
+// DEBUGGER: print result.i
+// CHECK:  = 3




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