1 files changed, 27 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.target/sh/pr51244-10.c b/gcc-4.9/gcc/testsuite/gcc.target/sh/pr51244-10.c
new file mode 100644
index 000000000..ef16b75ff
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.target/sh/pr51244-10.c
@@ -0,0 +1,27 @@
+/* Check that compare-branch is inverted properly.
+   In this case the improved bit test is a side effect of compare-branch
+   inversion patterns, even though the branch condition does not get
+   inverted here.
+   Example:
+	mov.b	@(14,r9),r0	->	mov.b	@(14,r9),r0
+	shll	r0			cmp/pz	r0
+	subc	r0,r0			bt	.L192
+	and	#1,r0
+	tst	r0,r0
+	bt	.L195
+*/
+/* { dg-do compile }  */
+/* { dg-options "-O2" } */
+/* { dg-skip-if "" { "sh*-*-*" } { "-m5*" } { "" } } */
+/* { dg-final { scan-assembler-not "shll|subc|and" } } */
+int
+test_00 (int* p)
+{
+  int nr = 15;
+  volatile char* addr = (volatile char*)&p[1];
+
+  if ((addr[(nr >> 3) ^ 7] & (1 << (nr & 7))) == 0)
+    return 40;
+  else
+    return 50;
+}