3 files changed, 49 insertions, 1 deletions
diff --git a/gcc/testsuite/gcc.c-torture/compile/20001226-1.c b/gcc/testsuite/gcc.c-torture/compile/20001226-1.c
index 127c4daec45..687b43a6bcb 100644
--- a/gcc/testsuite/gcc.c-torture/compile/20001226-1.c
+++ b/gcc/testsuite/gcc.c-torture/compile/20001226-1.c
@@ -1,7 +1,6 @@
 /* { dg-do assemble } */
 /* { dg-skip-if "too much code for avr" { "avr-*-*" } { "*" } { "" } } */
 /* { dg-skip-if "too much code for pdp11" { "pdp11-*-*" } { "*" } { "" } } */
-/* { dg-xfail-if "jump beyond 128K not supported" { xtensa*-*-* } { "-O0" } { "" } } */
 /* { dg-xfail-if "PR36698" { spu-*-* } { "-O0" } { "" } } */
 /* { dg-skip-if "" { m32c-*-* } { "*" } { "" } } */
 /* { dg-timeout-factor 4.0 } */
diff --git a/gcc/testsuite/gcc.c-torture/compile/pr78162.c b/gcc/testsuite/gcc.c-torture/compile/pr78162.c
new file mode 100644
index 00000000000..743d4e678b5
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/compile/pr78162.c
@@ -0,0 +1,10 @@
+/* PR tree-optimization/78162.
+   Handle negative offsets in store merging gracefully.  */
+
+int a, b[1][2];
+
+void fn1()
+{
+  for (a = 0; a < 2; a++)
+    b[-1][a] = 0;
+}
diff --git a/gcc/testsuite/gcc.c-torture/execute/pr78170.c b/gcc/testsuite/gcc.c-torture/execute/pr78170.c
new file mode 100644
index 00000000000..dce8a3eee36
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/pr78170.c
@@ -0,0 +1,39 @@
+/* { dg-require-effective-target int32plus } */
+
+/* PR tree-optimization/78170.
+   Check that sign-extended store to a bitfield
+   doesn't overwrite other fields.  */
+
+int a, b, d;
+
+struct S0
+{
+  int f0;
+  int f1;
+  int f2;
+  int f3;
+  int f4;
+  int f5:15;
+  int f6:17;
+  int f7:2;
+  int f8:30;
+} c;
+
+void fn1 ()
+{
+  d = b = 1;
+  for (; b; b = a)
+    {
+      struct S0 e = { 0, 0, 0, 0, 0, 0, 1, 0, 1 };
+      c = e;
+      c.f6 = -1;
+    }
+}
+
+int main ()
+{
+  fn1 ();
+  if (c.f7 != 0)
+    __builtin_abort ();
+  return 0;
+}