1 files changed, 36 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/powerpc/optimize-bswapdi-2.c b/gcc/testsuite/gcc.target/powerpc/optimize-bswapdi-2.c
new file mode 100644
index 000000000..7337e99b1
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/optimize-bswapdi-2.c
@@ -0,0 +1,36 @@
+/* { dg-require-effective-target stdint_types } */
+/* { dg-require-effective-target lp64 } */
+/* { dg-options "-O2 -mcpu=power5" } */
+
+/* This is a clone of gcc-dg/optimize-bswapdi-1.c, redone to use load and stores
+   to test whether lwbrx/stwbrx is generated for normal power systems.  */
+
+#include <stdint.h>
+#define __const_swab64(x) ((uint64_t)(			                        \
+	(((uint64_t)(x) & (uint64_t)0x00000000000000ffULL) << 56) |             \
+	(((uint64_t)(x) & (uint64_t)0x000000000000ff00ULL) << 40) |		\
+	(((uint64_t)(x) & (uint64_t)0x0000000000ff0000ULL) << 24) |		\
+	(((uint64_t)(x) & (uint64_t)0x00000000ff000000ULL) <<  8) |		\
+	(((uint64_t)(x) & (uint64_t)0x000000ff00000000ULL) >>  8) |		\
+	(((uint64_t)(x) & (uint64_t)0x0000ff0000000000ULL) >> 24) |		\
+	(((uint64_t)(x) & (uint64_t)0x00ff000000000000ULL) >> 40) |		\
+	(((uint64_t)(x) & (uint64_t)0xff00000000000000ULL) >> 56)))
+
+
+/* This byte swap implementation is used by the Linux kernel and the
+   GNU C library.  */
+
+uint64_t
+swap64_load (uint64_t *in)
+{
+  return __const_swab64 (*in);
+}
+
+void
+swap64_store (uint64_t *out, uint64_t in)
+{
+  *out = __const_swab64 (in);
+}
+
+/* { dg-final { scan-assembler-times "lwbrx" 2 } } */
+/* { dg-final { scan-assembler-times "stwbrx" 2 } } */