[ opcodes/ChangeLog ]

2002-12-18  Chris Demetriou  <cgd@broadcom.com>

	* mips-opc.c (mips_builtin_opcodes): Remove one "ror" and two
	"dror" entries, and reorder the remaining "dror" and "ror" entries.

[ gas/ChangeLog ]
2002-12-18  Chris Demetriou  <cgd@broadcom.com>

	* config/tc-mips.c (macro): In M_DROL, M_DROR, M_ROL, and M_ROR,
	use hardware rotate ops as appropriate.  In M_DROL_I, M_DROR_I,
	M_ROL_I, and M_ROR_I, simplify code, clean up warnings, and
	arrange not to issue warnings about use of AT when AT is not
	actually used.

[ gas/testsuite/ChangeLog ]
2002-12-18  Chris Demetriou  <cgd@broadcom.com>

	* gas/mips/rol.s: Add ".set noat" and some new instructions to test.
	* gas/mips/rol64.s: Likewise.
	* gas/mips/rol.l: New file.
	* gas/mips/rol.d: Adjust to use rol.l and for rol.s changes.
	* gas/mips/rol64.l: New file.
	* gas/mips/rol64.d: Adjust to use rol64.l and for rol64.s changes.
	* gas/mips/rol-hw.d: New file.
	* gas/mips/rol-hw.l: New file.
	* gas/mips/rol64-hw.d: New file.
	* gas/mips/rol64-hw.l: New file.
	* gas/mips/mips.exp: Run rol-hw and rol64-hw tests.

14 files changed, 333 insertions, 52 deletions

diff --git a/gas/ChangeLog b/gas/ChangeLog
index 38634c22..8a73343 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,11 @@
+2002-12-18  Chris Demetriou  <cgd@broadcom.com>
+
+	* config/tc-mips.c (macro): In M_DROL, M_DROR, M_ROL, and M_ROR,
+	use hardware rotate ops as appropriate.  In M_DROL_I, M_DROR_I,
+	M_ROL_I, and M_ROR_I, simplify code, clean up warnings, and
+	arrange not to issue warnings about use of AT when AT is not
+	actually used.
+
 2002-12-17  Nick Clifton  <nickc@redhat.com>
 
 	* as.c (std_longopts): Duplicate --keep-locals entry in order to
diff --git a/gas/config/tc-mips.c b/gas/config/tc-mips.c
index 15ada2c..2a2f11c 100644
--- a/gas/config/tc-mips.c
+++ b/gas/config/tc-mips.c
@@ -6940,6 +6940,26 @@ macro2 (ip)
       break;
 
     case M_DROL:
+      if (CPU_HAS_DROR (mips_arch))
+	{
+	  if (dreg == sreg)
+	    {
+	      tempreg = AT;
+	      used_at = 1;
+	    }
+	  else
+	    {
+	      tempreg = dreg;
+	      used_at = 0;
+	    }
+	  macro_build ((char *) NULL, &icnt, NULL, "dnegu",
+		       "d,w", tempreg, treg);
+	  macro_build ((char *) NULL, &icnt, NULL, "drorv",
+		       "d,t,s", dreg, sreg, tempreg);
+	  if (used_at)
+	    break;
+	  return;
+	}
       macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "dsubu",
 		   "d,v,t", AT, 0, treg);
       macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "dsrlv",
@@ -6951,6 +6971,26 @@ macro2 (ip)
       break;
 
     case M_ROL:
+      if (CPU_HAS_ROR (mips_arch))
+	{
+	  if (dreg == sreg)
+	    {
+	      tempreg = AT;
+	      used_at = 1;
+	    }
+	  else
+	    {
+	      tempreg = dreg;
+	      used_at = 0;
+	    }
+	  macro_build ((char *) NULL, &icnt, NULL, "negu",
+		       "d,w", tempreg, treg);
+	  macro_build ((char *) NULL, &icnt, NULL, "rorv",
+		       "d,t,s", dreg, sreg, tempreg);
+	  if (used_at)
+	    break;
+	  return;
+	}
       macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "subu",
 		   "d,v,t", AT, 0, treg);
       macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "srlv",
@@ -6964,9 +7004,10 @@ macro2 (ip)
     case M_DROL_I:
       {
 	unsigned int rot;
+	char *l, *r;
 
 	if (imm_expr.X_op != O_constant)
-	  as_bad (_("rotate count too large"));
+	  as_bad (_("Improper rotate count"));
 	rot = imm_expr.X_add_number & 0x3f;
 	if (CPU_HAS_DROR (mips_arch))
 	  {
@@ -6977,25 +7018,23 @@ macro2 (ip)
 	    else
 	      macro_build ((char *) NULL, &icnt, NULL, "dror",
 			   "d,w,<", dreg, sreg, rot);
-	    break;
+	    return;
 	  }
 	if (rot == 0)
-	  macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "dsrl",
-		       "d,w,<", dreg, sreg, 0);
-	else
 	  {
-	    char *l, *r;
-
-	    l = (rot < 0x20) ? "dsll" : "dsll32";
-	    r = ((0x40 - rot) < 0x20) ? "dsrl" : "dsrl32";
-	    rot &= 0x1f;
-	    macro_build ((char *) NULL, &icnt, (expressionS *) NULL, l,
-			 "d,w,<", AT, sreg, rot);
-	    macro_build ((char *) NULL, &icnt, (expressionS *) NULL, r,
-			 "d,w,<", dreg, sreg, (0x20 - rot) & 0x1f);
-	    macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "or",
-			 "d,v,t", dreg, dreg, AT);
+	    macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "dsrl",
+			 "d,w,<", dreg, sreg, 0);
+	    return;
 	  }
+	l = (rot < 0x20) ? "dsll" : "dsll32";
+	r = ((0x40 - rot) < 0x20) ? "dsrl" : "dsrl32";
+	rot &= 0x1f;
+	macro_build ((char *) NULL, &icnt, (expressionS *) NULL, l,
+		     "d,w,<", AT, sreg, rot);
+	macro_build ((char *) NULL, &icnt, (expressionS *) NULL, r,
+		     "d,w,<", dreg, sreg, (0x20 - rot) & 0x1f);
+	macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "or",
+		     "d,v,t", dreg, dreg, AT);
       }
       break;
 
@@ -7004,30 +7043,36 @@ macro2 (ip)
 	unsigned int rot;
 
 	if (imm_expr.X_op != O_constant)
-	  as_bad (_("rotate count too large"));
+	  as_bad (_("Improper rotate count"));
 	rot = imm_expr.X_add_number & 0x1f;
 	if (CPU_HAS_ROR (mips_arch))
 	  {
 	    macro_build ((char *) NULL, &icnt, NULL, "ror",
 			 "d,w,<", dreg, sreg, (32 - rot) & 0x1f);
-	    break;
+	    return;
 	  }
 	if (rot == 0)
-	  macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "srl",
-		       "d,w,<", dreg, sreg, 0);
-	else
 	  {
-	    macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "sll",
-			 "d,w,<", AT, sreg, rot);
 	    macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "srl",
-			 "d,w,<", dreg, sreg, (0x20 - rot) & 0x1f);
-	    macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "or",
-			 "d,v,t", dreg, dreg, AT);
+			 "d,w,<", dreg, sreg, 0);
+	    return;
 	  }
+	macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "sll",
+		     "d,w,<", AT, sreg, rot);
+	macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "srl",
+		     "d,w,<", dreg, sreg, (0x20 - rot) & 0x1f);
+	macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "or",
+		     "d,v,t", dreg, dreg, AT);
       }
       break;
 
     case M_DROR:
+      if (CPU_HAS_DROR (mips_arch))
+	{
+	  macro_build ((char *) NULL, &icnt, NULL, "drorv",
+		       "d,t,s", dreg, sreg, treg);
+	  return;
+	}
       macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "dsubu",
 		   "d,v,t", AT, 0, treg);
       macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "dsllv",
@@ -7039,6 +7084,12 @@ macro2 (ip)
       break;
 
     case M_ROR:
+      if (CPU_HAS_ROR (mips_arch))
+	{
+	  macro_build ((char *) NULL, &icnt, NULL, "rorv",
+		       "d,t,s", dreg, sreg, treg);
+	  return;
+	}
       macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "subu",
 		   "d,v,t", AT, 0, treg);
       macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "sllv",
@@ -7052,27 +7103,36 @@ macro2 (ip)
     case M_DROR_I:
       {
 	unsigned int rot;
+	char *l, *r;
 
 	if (imm_expr.X_op != O_constant)
-	  as_bad (_("rotate count too large"));
+	  as_bad (_("Improper rotate count"));
 	rot = imm_expr.X_add_number & 0x3f;
+	if (CPU_HAS_DROR (mips_arch))
+	  {
+	    if (rot >= 32)
+	      macro_build ((char *) NULL, &icnt, NULL, "dror32",
+			   "d,w,<", dreg, sreg, rot - 32);
+	    else
+	      macro_build ((char *) NULL, &icnt, NULL, "dror",
+			   "d,w,<", dreg, sreg, rot);
+	    return;
+	  }
 	if (rot == 0)
-	  macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "dsrl",
-		       "d,w,<", dreg, sreg, 0);
-	else
 	  {
-	    char *l, *r;
-
-	    r = (rot < 0x20) ? "dsrl" : "dsrl32";
-	    l = ((0x40 - rot) < 0x20) ? "dsll" : "dsll32";
-	    rot &= 0x1f;
-	    macro_build ((char *) NULL, &icnt, (expressionS *) NULL, r,
-			 "d,w,<", AT, sreg, rot);
-	    macro_build ((char *) NULL, &icnt, (expressionS *) NULL, l,
-			 "d,w,<", dreg, sreg, (0x20 - rot) & 0x1f);
-	    macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "or",
-			 "d,v,t", dreg, dreg, AT);
+	    macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "dsrl",
+			 "d,w,<", dreg, sreg, 0);
+	    return;
 	  }
+	r = (rot < 0x20) ? "dsrl" : "dsrl32";
+	l = ((0x40 - rot) < 0x20) ? "dsll" : "dsll32";
+	rot &= 0x1f;
+	macro_build ((char *) NULL, &icnt, (expressionS *) NULL, r,
+		     "d,w,<", AT, sreg, rot);
+	macro_build ((char *) NULL, &icnt, (expressionS *) NULL, l,
+		     "d,w,<", dreg, sreg, (0x20 - rot) & 0x1f);
+	macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "or",
+		     "d,v,t", dreg, dreg, AT);
       }
       break;
 
@@ -7081,20 +7141,26 @@ macro2 (ip)
 	unsigned int rot;
 
 	if (imm_expr.X_op != O_constant)
-	  as_bad (_("rotate count too large"));
+	  as_bad (_("Improper rotate count"));
 	rot = imm_expr.X_add_number & 0x1f;
+	if (CPU_HAS_ROR (mips_arch))
+	  {
+	    macro_build ((char *) NULL, &icnt, NULL, "ror",
+			 "d,w,<", dreg, sreg, rot);
+	    return;
+	  }
 	if (rot == 0)
-	  macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "srl",
-		       "d,w,<", dreg, sreg, 0);
-	else
 	  {
 	    macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "srl",
-			 "d,w,<", AT, sreg, rot);
-	    macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "sll",
-			 "d,w,<", dreg, sreg, (0x20 - rot) & 0x1f);
-	    macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "or",
-			 "d,v,t", dreg, dreg, AT);
+			 "d,w,<", dreg, sreg, 0);
+	    return;
 	  }
+	macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "srl",
+		     "d,w,<", AT, sreg, rot);
+	macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "sll",
+		     "d,w,<", dreg, sreg, (0x20 - rot) & 0x1f);
+	macro_build ((char *) NULL, &icnt, (expressionS *) NULL, "or",
+		     "d,v,t", dreg, dreg, AT);
       }
       break;
 
diff --git a/gas/testsuite/ChangeLog b/gas/testsuite/ChangeLog
index 029ed26..d32cb23 100644
--- a/gas/testsuite/ChangeLog
+++ b/gas/testsuite/ChangeLog
@@ -1,3 +1,17 @@
+2002-12-18  Chris Demetriou  <cgd@broadcom.com>
+
+	* gas/mips/rol.s: Add ".set noat" and some new instructions to test.
+	* gas/mips/rol64.s: Likewise.
+	* gas/mips/rol.l: New file.
+	* gas/mips/rol.d: Adjust to use rol.l and for rol.s changes.
+	* gas/mips/rol64.l: New file.
+	* gas/mips/rol64.d: Adjust to use rol64.l and for rol64.s changes.
+	* gas/mips/rol-hw.d: New file.
+	* gas/mips/rol-hw.l: New file.
+	* gas/mips/rol64-hw.d: New file.
+	* gas/mips/rol64-hw.l: New file.
+	* gas/mips/mips.exp: Run rol-hw and rol64-hw tests.
+
 2002-12-12  Alexandre Oliva  <aoliva@redhat.com>
 
 	* gas/mips/beq.d: Comment out branches to undefined symbols,
diff --git a/gas/testsuite/gas/mips/mips.exp b/gas/testsuite/gas/mips/mips.exp
index 89437d8..b47499c 100644
--- a/gas/testsuite/gas/mips/mips.exp
+++ b/gas/testsuite/gas/mips/mips.exp
@@ -125,7 +125,9 @@ if { [istarget mips*-*-*] } then {
 	run_dump_test "mul"
     }
     run_dump_test "rol"
+    run_dump_test "rol-hw"
     run_dump_test "rol64"
+    run_dump_test "rol64-hw"
     if !$aout { run_dump_test "sb" }
     run_dump_test "trunc"
     if !$aout { run_dump_test "ulh" }
diff --git a/gas/testsuite/gas/mips/rol-hw.d b/gas/testsuite/gas/mips/rol-hw.d
new file mode 100644
index 0000000..30521a7
--- /dev/null
+++ b/gas/testsuite/gas/mips/rol-hw.d
@@ -0,0 +1,30 @@
+#objdump: -dr --prefix-addresses -mmips:5400
+#as: -march=vr5400 -mtune=vr5400
+#name: MIPS hardware rol (vr5400)
+#source: rol.s
+#stderr: rol-hw.l
+
+# Test the rol and ror macros.
+
+.*: +file format .*mips.*
+
+Disassembly of section .text:
+0+0000 <[^>]*> negu	at,a1
+0+0004 <[^>]*> rorv	a0,a0,at
+0+0008 <[^>]*> negu	a0,a2
+0+000c <[^>]*> rorv	a0,a1,a0
+0+0010 <[^>]*> ror	a0,a0,0x1f
+0+0014 <[^>]*> ror	a0,a1,0x1f
+0+0018 <[^>]*> ror	a0,a1,0x0
+0+001c <[^>]*> rorv	a0,a0,a1
+0+0020 <[^>]*> rorv	a0,a1,a2
+0+0024 <[^>]*> ror	a0,a0,0x1
+0+0028 <[^>]*> ror	a0,a1,0x1
+0+002c <[^>]*> ror	a0,a1,0x0
+0+0030 <[^>]*> ror	a0,a1,0x0
+0+0034 <[^>]*> ror	a0,a1,0x1f
+0+0038 <[^>]*> ror	a0,a1,0x1
+0+003c <[^>]*> ror	a0,a1,0x0
+0+0040 <[^>]*> ror	a0,a1,0x1
+0+0044 <[^>]*> ror	a0,a1,0x1f
+	...
diff --git a/gas/testsuite/gas/mips/rol-hw.l b/gas/testsuite/gas/mips/rol-hw.l
new file mode 100644
index 0000000..19a5dc4
--- /dev/null
+++ b/gas/testsuite/gas/mips/rol-hw.l
@@ -0,0 +1,2 @@
+.*: Assembler messages:
+.*:7: Warning: Macro used \$at after "\.set noat"
diff --git a/gas/testsuite/gas/mips/rol.d b/gas/testsuite/gas/mips/rol.d
index 2128dd5..84ce2ef 100644
--- a/gas/testsuite/gas/mips/rol.d
+++ b/gas/testsuite/gas/mips/rol.d
@@ -1,6 +1,7 @@
 #objdump: -dr --prefix-addresses -mmips:3000
 #as: -march=r3000 -mtune=r3000
-#name: MIPS R3000 rol
+#name: MIPS macro rol (r3000)
+#stderr: rol.l
 
 # Test the rol and ror macros.
 
@@ -37,4 +38,18 @@ Disassembly of section .text:
 0+006c <[^>]*> sll	a0,a1,0x1f
 0+0070 <[^>]*> or	a0,a0,at
 0+0074 <[^>]*> srl	a0,a1,0x0
+0+0078 <[^>]*> srl	a0,a1,0x0
+0+007c <[^>]*> sll	at,a1,0x1
+0+0080 <[^>]*> srl	a0,a1,0x1f
+0+0084 <[^>]*> or	a0,a0,at
+0+0088 <[^>]*> sll	at,a1,0x1f
+0+008c <[^>]*> srl	a0,a1,0x1
+0+0090 <[^>]*> or	a0,a0,at
+0+0094 <[^>]*> srl	a0,a1,0x0
+0+0098 <[^>]*> srl	at,a1,0x1
+0+009c <[^>]*> sll	a0,a1,0x1f
+0+00a0 <[^>]*> or	a0,a0,at
+0+00a4 <[^>]*> srl	at,a1,0x1f
+0+00a8 <[^>]*> sll	a0,a1,0x1
+0+00ac <[^>]*> or	a0,a0,at
 	...
diff --git a/gas/testsuite/gas/mips/rol.l b/gas/testsuite/gas/mips/rol.l
new file mode 100644
index 0000000..441597e
--- /dev/null
+++ b/gas/testsuite/gas/mips/rol.l
@@ -0,0 +1,13 @@
+.*: Assembler messages:
+.*:7: Warning: Macro used \$at after "\.set noat"
+.*:8: Warning: Macro used \$at after "\.set noat"
+.*:9: Warning: Macro used \$at after "\.set noat"
+.*:10: Warning: Macro used \$at after "\.set noat"
+.*:13: Warning: Macro used \$at after "\.set noat"
+.*:14: Warning: Macro used \$at after "\.set noat"
+.*:15: Warning: Macro used \$at after "\.set noat"
+.*:16: Warning: Macro used \$at after "\.set noat"
+.*:20: Warning: Macro used \$at after "\.set noat"
+.*:21: Warning: Macro used \$at after "\.set noat"
+.*:24: Warning: Macro used \$at after "\.set noat"
+.*:25: Warning: Macro used \$at after "\.set noat"
diff --git a/gas/testsuite/gas/mips/rol.s b/gas/testsuite/gas/mips/rol.s
index 988d702..017c002 100644
--- a/gas/testsuite/gas/mips/rol.s
+++ b/gas/testsuite/gas/mips/rol.s
@@ -1,5 +1,8 @@
 # Source file used to test the rol and ror macros.
 
+	# generate warnings for all uses of AT.
+	.set noat
+
 foo:
 	rol	$4,$5
 	rol	$4,$5,$6
@@ -12,4 +15,13 @@ foo:
 	ror	$4,1
 	ror	$4,$5,1
 	ror	$4,$5,0
+
+	rol	$4,$5,32
+	rol	$4,$5,33
+	rol	$4,$5,63
+
+	ror	$4,$5,32
+	ror	$4,$5,33
+	ror	$4,$5,63
+
 	.space	8
diff --git a/gas/testsuite/gas/mips/rol64-hw.d b/gas/testsuite/gas/mips/rol64-hw.d
new file mode 100644
index 0000000..e0a5425
--- /dev/null
+++ b/gas/testsuite/gas/mips/rol64-hw.d
@@ -0,0 +1,44 @@
+#objdump: -dr --prefix-addresses -mmips:5400
+#as: -march=vr5400 -mtune=vr5400
+#name: MIPS hardware drol (vr5400)
+#source: rol64.s
+#stderr: rol64-hw.l
+
+# Test the drol and dror macros.
+
+.*: +file format .*mips.*
+
+Disassembly of section .text:
+0+0000 <[^>]*> dnegu	at,a1
+0+0004 <[^>]*> drorv	a0,a0,at
+0+0008 <[^>]*> dnegu	a0,a2
+0+000c <[^>]*> drorv	a0,a1,a0
+0+0010 <[^>]*> dror32	a0,a0,0x1f
+0+0014 <[^>]*> dror	a0,a1,0x0
+0+0018 <[^>]*> dror32	a0,a1,0x1f
+0+001c <[^>]*> dror32	a0,a1,0x1
+0+0020 <[^>]*> dror32	a0,a1,0x0
+0+0024 <[^>]*> dror	a0,a1,0x1f
+0+0028 <[^>]*> dror	a0,a1,0x1
+0+002c <[^>]*> dror	a0,a1,0x0
+0+0030 <[^>]*> drorv	a0,a0,a1
+0+0034 <[^>]*> drorv	a0,a1,a2
+0+0038 <[^>]*> dror	a0,a0,0x1
+0+003c <[^>]*> dror	a0,a1,0x0
+0+0040 <[^>]*> dror	a0,a1,0x1
+0+0044 <[^>]*> dror	a0,a1,0x1f
+0+0048 <[^>]*> dror32	a0,a1,0x0
+0+004c <[^>]*> dror32	a0,a1,0x1
+0+0050 <[^>]*> dror32	a0,a1,0x1f
+0+0054 <[^>]*> dror	a0,a1,0x0
+0+0058 <[^>]*> dror32	a0,a1,0x1f
+0+005c <[^>]*> dror32	a0,a1,0x1
+0+0060 <[^>]*> dror32	a0,a1,0x0
+0+0064 <[^>]*> dror	a0,a1,0x1f
+0+0068 <[^>]*> dror	a0,a1,0x1
+0+006c <[^>]*> dror	a0,a1,0x1
+0+0070 <[^>]*> dror	a0,a1,0x1f
+0+0074 <[^>]*> dror32	a0,a1,0x0
+0+0078 <[^>]*> dror32	a0,a1,0x1
+0+007c <[^>]*> dror32	a0,a1,0x1f
+	...
diff --git a/gas/testsuite/gas/mips/rol64-hw.l b/gas/testsuite/gas/mips/rol64-hw.l
new file mode 100644
index 0000000..19a5dc4
--- /dev/null
+++ b/gas/testsuite/gas/mips/rol64-hw.l
@@ -0,0 +1,2 @@
+.*: Assembler messages:
+.*:7: Warning: Macro used \$at after "\.set noat"
diff --git a/gas/testsuite/gas/mips/rol64.d b/gas/testsuite/gas/mips/rol64.d
index 32b132b..979ec51 100644
--- a/gas/testsuite/gas/mips/rol64.d
+++ b/gas/testsuite/gas/mips/rol64.d
@@ -1,6 +1,7 @@
 #objdump: -dr --prefix-addresses -mmips:4000
 #as: -march=r4000 -mtune=r4000
-#name: MIPS R4000 drol
+#name: MIPS macro drol (r4000)
+#stderr: rol64.l
 
 # Test the drol and dror macros.
 
@@ -63,4 +64,34 @@ Disassembly of section .text:
 0+00d4 <[^>]*> dsll	a0,a1,0x1
 0+00d8 <[^>]*> or	a0,a0,at
 0+00dc <[^>]*> dsrl	a0,a1,0x0
+0+00e0 <[^>]*> dsll	at,a1,0x1
+0+00e4 <[^>]*> dsrl32	a0,a1,0x1f
+0+00e8 <[^>]*> or	a0,a0,at
+0+00ec <[^>]*> dsll	at,a1,0x1f
+0+00f0 <[^>]*> dsrl32	a0,a1,0x1
+0+00f4 <[^>]*> or	a0,a0,at
+0+00f8 <[^>]*> dsll32	at,a1,0x0
+0+00fc <[^>]*> dsrl32	a0,a1,0x0
+0+0100 <[^>]*> or	a0,a0,at
+0+0104 <[^>]*> dsll32	at,a1,0x1
+0+0108 <[^>]*> dsrl	a0,a1,0x1f
+0+010c <[^>]*> or	a0,a0,at
+0+0110 <[^>]*> dsll32	at,a1,0x1f
+0+0114 <[^>]*> dsrl	a0,a1,0x1
+0+0118 <[^>]*> or	a0,a0,at
+0+011c <[^>]*> dsrl	at,a1,0x1
+0+0120 <[^>]*> dsll32	a0,a1,0x1f
+0+0124 <[^>]*> or	a0,a0,at
+0+0128 <[^>]*> dsrl	at,a1,0x1f
+0+012c <[^>]*> dsll32	a0,a1,0x1
+0+0130 <[^>]*> or	a0,a0,at
+0+0134 <[^>]*> dsrl32	at,a1,0x0
+0+0138 <[^>]*> dsll32	a0,a1,0x0
+0+013c <[^>]*> or	a0,a0,at
+0+0140 <[^>]*> dsrl32	at,a1,0x1
+0+0144 <[^>]*> dsll	a0,a1,0x1f
+0+0148 <[^>]*> or	a0,a0,at
+0+014c <[^>]*> dsrl32	at,a1,0x1f
+0+0150 <[^>]*> dsll	a0,a1,0x1
+0+0154 <[^>]*> or	a0,a0,at
 	...
diff --git a/gas/testsuite/gas/mips/rol64.l b/gas/testsuite/gas/mips/rol64.l
new file mode 100644
index 0000000..4a4e74c
--- /dev/null
+++ b/gas/testsuite/gas/mips/rol64.l
@@ -0,0 +1,27 @@
+.*: Assembler messages:
+.*:7: Warning: Macro used \$at after "\.set noat"
+.*:8: Warning: Macro used \$at after "\.set noat"
+.*:9: Warning: Macro used \$at after "\.set noat"
+.*:11: Warning: Macro used \$at after "\.set noat"
+.*:12: Warning: Macro used \$at after "\.set noat"
+.*:13: Warning: Macro used \$at after "\.set noat"
+.*:14: Warning: Macro used \$at after "\.set noat"
+.*:15: Warning: Macro used \$at after "\.set noat"
+.*:18: Warning: Macro used \$at after "\.set noat"
+.*:19: Warning: Macro used \$at after "\.set noat"
+.*:20: Warning: Macro used \$at after "\.set noat"
+.*:22: Warning: Macro used \$at after "\.set noat"
+.*:23: Warning: Macro used \$at after "\.set noat"
+.*:24: Warning: Macro used \$at after "\.set noat"
+.*:25: Warning: Macro used \$at after "\.set noat"
+.*:26: Warning: Macro used \$at after "\.set noat"
+.*:29: Warning: Macro used \$at after "\.set noat"
+.*:30: Warning: Macro used \$at after "\.set noat"
+.*:31: Warning: Macro used \$at after "\.set noat"
+.*:32: Warning: Macro used \$at after "\.set noat"
+.*:33: Warning: Macro used \$at after "\.set noat"
+.*:35: Warning: Macro used \$at after "\.set noat"
+.*:36: Warning: Macro used \$at after "\.set noat"
+.*:37: Warning: Macro used \$at after "\.set noat"
+.*:38: Warning: Macro used \$at after "\.set noat"
+.*:39: Warning: Macro used \$at after "\.set noat"
diff --git a/gas/testsuite/gas/mips/rol64.s b/gas/testsuite/gas/mips/rol64.s
index 3e71732..49a5717 100644
--- a/gas/testsuite/gas/mips/rol64.s
+++ b/gas/testsuite/gas/mips/rol64.s
@@ -1,5 +1,8 @@
 # Source file used to test the drol and dror macros.
 
+	# generate warnings for all uses of AT.
+	.set noat
+
 foo:
 	drol	$4,$5
 	drol	$4,$5,$6
@@ -23,5 +26,17 @@ foo:
 	dror	$4,$5,63
 	dror	$4,$5,64
 
+	drol	$4,$5,65
+	drol	$4,$5,95
+	drol	$4,$5,96
+	drol	$4,$5,97
+	drol	$4,$5,127
+
+	dror	$4,$5,65
+	dror	$4,$5,95
+	dror	$4,$5,96
+	dror	$4,$5,97
+	dror	$4,$5,127
+
 # Force at least 8 (non-delay-slot) zero bytes, to make 'objdump' print ...
 	.space	8