PR14296: function parameter name collisions in function try/catch

C++11 3.3.3/2 "A parameter name shall not be redeclared in the outermost block
of the function definition nor in the outermost block of any handler associated
with a function-try-block."

It's not totally clear to me whether the "FIXME" case is covered by this, but
Richard Smith thinks it probably should be. It's just a bit more involved to
fix that case.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167650 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 25 insertions, 0 deletions

diff --git a/test/CXX/basic/basic.scope/basic.scope.local/p2.cpp b/test/CXX/basic/basic.scope/basic.scope.local/p2.cpp
new file mode 100644
index 0000000000..624118cc36
--- /dev/null
+++ b/test/CXX/basic/basic.scope/basic.scope.local/p2.cpp
@@ -0,0 +1,25 @@
+// RUN: %clang_cc1 -std=c++11 -fsyntax-only -fcxx-exceptions -fexceptions -verify %s
+
+void func1(int i) { // expected-note{{previous definition is here}}
+  int i; // expected-error{{redefinition of 'i'}}
+}
+
+void func2(int i) try { // expected-note{{previous definition is here}}
+  int i; // expected-error{{redefinition of 'i'}}
+} catch (...) {
+}
+
+void func3(int i) try { // FIXME: note {{previous definition is here}}
+} catch (int i) { // FIXME: error {{redefinition of 'i'}}
+}
+
+void func4(int i) try { // expected-note{{previous definition is here}}
+} catch (...) {
+  int i; // expected-error{{redefinition of 'i'}}
+}
+
+void func5() try {
+  int i;
+} catch (...) {
+  int j = i; // expected-error{{use of undeclared identifier 'i'}}
+}