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-rw-r--r--test/Frontend/macros.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/test/Frontend/macros.c b/test/Frontend/macros.c
index 3170797..68f2203 100644
--- a/test/Frontend/macros.c
+++ b/test/Frontend/macros.c
@@ -1,4 +1,13 @@
// RUN: %clang_cc1 -DA= -DB=1 -verify -fsyntax-only %s
+// expected-no-diagnostics
int a[(B A) == 1 ? 1 : -1];
+
+// PR13747 - Don't warn about unused results with statement exprs in macros.
+void stuff(int,int,int);
+#define memset(x,y,z) ({ stuff(x,y,z); x; })
+
+void foo(int a, int b, int c) {
+ memset(a,b,c); // No warning!
+}
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