S/390: Fix PR80725.

gcc/ChangeLog:

2017-05-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	PR target/80725
	* config/s390/s390.c (s390_check_qrst_address): Check incoming
	address against address_operand predicate.
	* config/s390/s390.md ("*indirect_jump"): Swap alternatives.

gcc/testsuite/ChangeLog:

2017-05-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* gcc.target/s390/pr80725.c: New test.

From-SVN: r248407

gcc/ChangeLog

+2017-05-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
+
+	PR target/80725
+	* config/s390/s390.c (s390_check_qrst_address): Check incoming
+	address against address_operand predicate.
+	* config/s390/s390.md ("*indirect_jump"): Swap alternatives.
+
 2017-05-24  Eric Botcazou  <ebotcazou@adacore.com>
 
 	* var-tracking.c (track_expr_p): Do not return 0 for tracked record

gcc/config/s390/s390.c

@@ -3102,6 +3102,9 @@ s390_check_qrst_address (char c, rtx op, bool lit_pool_ok)
   struct s390_address addr;
   bool decomposed = false;
 
+  if (!address_operand (op, GET_MODE (op)))
+    return 0;
+
   /* This check makes sure that no symbolic address (except literal
      pool references) are accepted by the R or T constraints.  */
   if (s390_loadrelative_operand_p (op, NULL, NULL))

gcc/config/s390/s390.md

@@ -9660,14 +9660,16 @@
     operands[0] = force_reg (Pmode, operands[0]);
 })
 
+; The first constraint must be an "extra address constraint" in order
+; to trigger address reloading in LRA/reload
 (define_insn "*indirect_jump"
   [(set (pc)
-	(match_operand 0 "address_operand" "a,ZR"))]
+	(match_operand 0 "address_operand" "ZR,a"))]
  ""
  "@
-  br\t%0
-  b\t%a0"
- [(set_attr "op_type" "RR,RX")
+  b\t%a0
+  br\t%0"
+ [(set_attr "op_type" "RX,RR")
   (set_attr "type"  "branch")
   (set_attr "atype" "agen")
   (set_attr "cpu_facility" "*")])

gcc/testsuite/ChangeLog

+2017-05-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
+
+	* gcc.target/s390/pr80725.c: New test.
+
 2017-05-23  Nathan Sidwell  <nathan@acm.org>
 
 	* g++.dg/lookup/extern-c-hidden.C: New.

gcc/testsuite/gcc.target/s390/pr80725.c

+/* Regression test for PR/80725.  */
+
+/* { dg-do compile } */
+/* { dg-options "-O2 -march=zEC12" } */
+
+int a, e;
+const char b;
+char c;
+const int d;
+void bar (short);
+
+void
+foo (int x, int y)
+{
+  long f = d;
+  short g = 0;
+  while (e)
+    while (a < x)
+      {
+	if (y)
+	  goto *d;
+	g = b | b + g;
+	bar (g);
+	c = (char) (long) foo;
+      }
+}