re PR target/78791 (ACATS cxf2001 failure)

	PR target/78791
	* config/i386/i386.h (enum ix86_stack_slot): Add SLOT_STV_TEMP.
	* config/i386/i386.c (dimode_scalar_chain::make_vector_copies,
	dimode_scalar_chain::convert_reg): Use SLOT_STV_TEMP instead of
	SLOT_TEMP.

	* gcc.c-torture/execute/pr78791.c: New test.
	* gcc.target/i386/pr78791.c: New test.

From-SVN: r243671

gcc/ChangeLog

+2016-12-14  Jakub Jelinek  <jakub@redhat.com>
+
+	PR target/78791
+	* config/i386/i386.h (enum ix86_stack_slot): Add SLOT_STV_TEMP.
+	* config/i386/i386.c (dimode_scalar_chain::make_vector_copies,
+	dimode_scalar_chain::convert_reg): Use SLOT_STV_TEMP instead of
+	SLOT_TEMP.
+
 2016-12-14  Uros Bizjak  <ubizjak@gmail.com>
 
 	PR target/59874

gcc/config/i386/i386.c

@@ -3560,7 +3560,7 @@ dimode_scalar_chain::make_vector_copies (unsigned regno)
 	  }
 	else
 	  {
-	    rtx tmp = assign_386_stack_local (DImode, SLOT_TEMP);
+	    rtx tmp = assign_386_stack_local (DImode, SLOT_STV_TEMP);
 	    emit_move_insn (adjust_address (tmp, SImode, 0),
 			    gen_rtx_SUBREG (SImode, reg, 0));
 	    emit_move_insn (adjust_address (tmp, SImode, 4),
@@ -3637,7 +3637,7 @@ dimode_scalar_chain::convert_reg (unsigned regno)
 	    }
 	  else
 	    {
-	      rtx tmp = assign_386_stack_local (DImode, SLOT_TEMP);
+	      rtx tmp = assign_386_stack_local (DImode, SLOT_STV_TEMP);
 	      emit_move_insn (tmp, reg);
 	      emit_move_insn (gen_rtx_SUBREG (SImode, scopy, 0),
 			      adjust_address (tmp, SImode, 0));

gcc/config/i386/i386.h

@@ -2400,6 +2400,7 @@ enum ix86_stack_slot
   SLOT_CW_FLOOR,
   SLOT_CW_CEIL,
   SLOT_CW_MASK_PM,
+  SLOT_STV_TEMP,
   MAX_386_STACK_LOCALS
 };
 

gcc/testsuite/ChangeLog

+2016-12-14  Jakub Jelinek  <jakub@redhat.com>
+
+	PR target/78791
+	* gcc.c-torture/execute/pr78791.c: New test.
+	* gcc.target/i386/pr78791.c: New test.
+
 2016-12-14  Marek Polacek  <polacek@redhat.com>
 
 	PR c++/72775

gcc/testsuite/gcc.c-torture/execute/pr78791.c

+/* PR target/78791 */
+
+__attribute__((used, noinline, noclone)) unsigned long long
+foo (unsigned long long x, unsigned long long y, unsigned long long z)
+{
+  unsigned long long a = x / y;
+  unsigned long long b = x % y;
+  a |= z;
+  b ^= z;
+  return a + b;
+}
+
+int
+main ()
+{
+  if (foo (64, 7, 0) != 10 || foo (28, 3, 2) != 14)
+    __builtin_abort ();
+  return 0;
+}

gcc/testsuite/gcc.target/i386/pr78791.c

+/* PR target/78791 */
+/* { dg-do run { target sse2_runtime } } */
+/* { dg-options "-O2 -msse2" } */
+
+#include "../../gcc.c-torture/execute/pr78791.c"