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-rw-r--r--gcc-4.9/gcc/testsuite/gcc.c-torture/compile/20020312-1.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.c-torture/compile/20020312-1.c b/gcc-4.9/gcc/testsuite/gcc.c-torture/compile/20020312-1.c
new file mode 100644
index 000000000..bac5c6a53
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.c-torture/compile/20020312-1.c
@@ -0,0 +1,22 @@
+/* { dg-do assemble } */
+/* { dg-skip-if "" { pdp11-*-* } { "-O0" } { "" } } */
+
+/* PR optimization/5892 */
+typedef struct { unsigned long a; unsigned int b, c; } A;
+typedef struct { unsigned long a; A *b; int c; } B;
+
+static inline unsigned int
+bar (unsigned int x)
+{
+ unsigned long r;
+ asm ("" : "=r" (r) : "0" (x));
+ return r >> 31;
+}
+
+int foo (B *x)
+{
+ A *y;
+ y = x->b;
+ y->b = bar (x->c);
+ y->c = ({ unsigned int z = 1; (z << 24) | (z >> 24); });
+}