1 files changed, 41 insertions, 0 deletions
diff --git a/test/FrontendC++/2008-02-13-sret.cpp b/test/FrontendC++/2008-02-13-sret.cpp
new file mode 100644
index 0000000000..15bfa2ddab
--- /dev/null
+++ b/test/FrontendC++/2008-02-13-sret.cpp
@@ -0,0 +1,41 @@
+// RUN: %llvmgxx -S -O1 -m32 -emit-llvm %s -o - | grep {store i32} | count 1
+
+// Test that all 8 bytes of ret in check242 are copied, and only 4 bytes of
+// ret in check93 are copied (the same LLVM struct is used for both).
+
+typedef __builtin_va_list va_list;
+typedef unsigned long size_t;
+void *memset(void *, int, size_t);
+
+struct S93 { __attribute__((aligned (8))) void * a; } ;
+ extern struct S93 s93;
+ struct S93 check93 () { 
+  struct S93 ret;
+ memset (&ret, 0, sizeof (ret));
+ ret.a = s93.a; 
+ return ret; }
+
+struct S242 { char * a;int b[1]; } ;
+ extern struct S242 s242;
+
+ struct S242 check242 () {
+ struct S242 ret;
+ memset (&ret, 0, sizeof (ret));
+ ret.a = s242.a;
+ ret.b[0] = s242.b[0];
+ return ret; }
+
+void check93va (int z, ...) { 
+ struct S93 arg;
+ va_list ap;
+ __builtin_va_start(ap,z);
+ arg = __builtin_va_arg(ap,struct S93);
+  __builtin_va_end(ap); }
+
+void check242va (int z, ...) { 
+struct S242 arg;
+va_list ap;
+__builtin_va_start(ap,z);
+ arg = __builtin_va_arg(ap,struct S242);
+ __builtin_va_end(ap); }
+