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-rw-r--r--gcc-4.9/gcc/testsuite/gcc.target/i386/20020224-1.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.target/i386/20020224-1.c b/gcc-4.9/gcc/testsuite/gcc.target/i386/20020224-1.c
new file mode 100644
index 000000000..2905719fa
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.target/i386/20020224-1.c
@@ -0,0 +1,41 @@
+/* PR target/5755
+ This testcase failed because the caller of a function returning struct
+ expected the callee to pop up the hidden return structure pointer,
+ while callee was actually not poping it up (as the hidden argument
+ was passed in register). */
+/* { dg-do run } */
+/* { dg-options "-O2 -fomit-frame-pointer" } */
+
+extern void abort (void);
+extern void exit (int);
+
+typedef struct {
+ int a1, a2;
+} A;
+
+A a;
+
+A __attribute__ ((regparm (2)))
+foo (int x)
+{
+ return a;
+}
+
+int __attribute__ ((regparm (2)))
+bar (int x)
+{
+ int r = foo(0).a2;
+ return r;
+}
+
+int
+main ()
+{
+ int f;
+ a.a1 = 530;
+ a.a2 = 980;
+ f = bar (0);
+ if (f != 980)
+ abort ();
+ exit (0);
+}