1 files changed, 103 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/s390/asm-hard-reg-1.c b/gcc/testsuite/gcc.target/s390/asm-hard-reg-1.c
new file mode 100644
index 0000000..671c0ed
--- /dev/null
+++ b/gcc/testsuite/gcc.target/s390/asm-hard-reg-1.c
@@ -0,0 +1,103 @@
+/* { dg-do compile { target { lp64 } } } */
+/* { dg-options "-O2 -march=z13 -mzarch" } */
+/* { dg-final { check-function-bodies "**" "" "" } } */
+
+/*
+** test_in_1:
+**     foo	%r2
+**     br	%r14
+*/
+
+int
+test_in_1 (int x)
+{
+  asm ("foo	%0" :: "{r2}" (x));
+  return x;
+}
+
+/*
+** test_in_2:
+**     lgr	(%r[0-9]+),%r2
+**     lr	%r2,%r3
+**     foo	%r2
+**     lgr	%r2,\1
+**     br	%r14
+*/
+
+int
+test_in_2 (int x, int y)
+{
+  asm ("foo	%0" :: "{r2}" (y));
+  return x;
+}
+
+/*
+** test_in_3:
+**     stmg	%r12,%r15,96\(%r15\)
+**     lay	%r15,-160\(%r15\)
+**     lgr	(%r[0-9]+),%r2
+**     ahi	%r2,1
+**     lgfr	%r2,%r2
+**     brasl	%r14,foo@PLT
+**     lr	%r3,%r2
+**     lr	%r2,\1
+**     foo	%r3,%r2
+**     lgr	%r2,\1
+**     lmg	%r12,%r15,256\(%r15\)
+**     br	%r14
+*/
+
+extern int foo (int);
+
+int
+test_in_3 (int x)
+{
+  asm ("foo	%0,%1\n" :: "{r3}" (foo (x + 1)), "{r2}" (x));
+  return x;
+}
+
+/*
+** test_out_1:
+**     foo	%r3
+**     lgfr	%r2,%r3
+**     br	%r14
+*/
+
+int
+test_out_1 (void)
+{
+  int x;
+  asm ("foo	%0" : "={r3}" (x));
+  return x;
+}
+
+/*
+** test_out_2:
+**     lgr	(%r[0-9]+),%r2
+**     foo	%r2
+**     ark	(%r[0-9]+),\1,%r2
+**     lgfr	%r2,\2
+**     br	%r14
+*/
+
+int
+test_out_2 (int x)
+{
+  int y;
+  asm ("foo	%0" : "={r2}" (y));
+  return x + y;
+}
+
+/*
+** test_inout_1:
+**     foo	%r2
+**     lgfr	%r2,%r2
+**     br	%r14
+*/
+
+int
+test_inout_1 (int x)
+{
+  asm ("foo	%0" : "+{r2}" (x));
+  return x;
+}