re PR rtl-optimization/59278 (combine does not replace matched insn)

testsuite/
	PR rtl-optimization/59278
	* gcc.target/sh/pr59278.c: New.

From-SVN: r218251

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 3f14726007c39aa83ebbee3051b89516e9ffde77..dff9d0211bdd61264953c0654059816cbabf23b4 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2014-12-01  Oleg Endo  <olegendo@gcc.gnu.org>
+
+       PR rtl-optimization/59278
+       * gcc.target/sh/pr59278.c: New.
+
 2014-12-01  Paolo Carlini  <paolo.carlini@oracle.com>
 
        PR c++/60859

diff --git a/gcc/testsuite/gcc.target/sh/pr59278.c b/gcc/testsuite/gcc.target/sh/pr59278.c
new file mode 100644 (file)
index 0000000..563e5b7
--- /dev/null
+++ b/gcc/testsuite/gcc.target/sh/pr59278.c
@@ -0,0 +1,19 @@
+/* Check that combine considers unused regs dead.  */
+/* { dg-do compile }  */
+/* { dg-options "-O1" }  */
+/* { dg-skip-if "" { "sh*-*-*" } { "-m5*"} { "" } }  */
+/* { dg-final { scan-assembler "addc" } }  */
+
+struct result
+{
+  int a, b;
+};
+
+struct result
+test_00 (int a, int b, int d)
+{
+  struct result r;
+  r.a = a != b;
+  r.b = d + b + 1;
+  return r;
+}