Fix #pragma redefine_extname when there is a local variable of the same name. The local should not be renamed, only the externally-available declaration should be.

Patch by Andrey Bokhanko!

llvm-svn: 240653

1 files changed, 13 insertions, 1 deletions

diff --git a/clang/test/CodeGenCXX/redefine_extname.cpp b/clang/test/CodeGenCXX/redefine_extname.cpp
index 2b6b703a1b8..f76fe6252fe 100644
--- a/clang/test/CodeGenCXX/redefine_extname.cpp
+++ b/clang/test/CodeGenCXX/redefine_extname.cpp
@@ -8,7 +8,7 @@ extern "C" {
   int statvfs64(struct statvfs64 *);
 }
 
-void foo() {
+void some_func() {
   struct statvfs64 st;
   statvfs64(&st);
 // Check that even if there is a structure with redefined name before the
@@ -16,3 +16,15 @@ void foo() {
 // CHECK:  call i32 @statvfs(%struct.statvfs64* %st)
 }
 
+// This is a case when redefenition is deferred *and* we have a local of the
+// same name. PR23923.
+#pragma redefine_extname foo bar
+int f() {
+  int foo = 0;
+  return foo;
+}
+extern "C" {
+  int foo() { return 1; }
+// CHECK: define i32 @bar()
+}
+