From: Nick Clifton <nickc@redhat.com>
Date: Tue, 20 Mar 2012 11:55:07 +0000 (+0000)
Subject: 	* config/tc-arm.c (do_vmrs): Accept priviledged mode VFP system
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=7465e07a575987962b4f1ade6656d5dfbe8fa78e;p=binutils-gdb.git

	* config/tc-arm.c (do_vmrs): Accept priviledged mode VFP system
	registers.
	(do_vmsr): Likewise.
	(arm_opcode_insns): Do not default to using the FPSCR register in
	the VMRS and VMSR registers.

	* gas/arm/vfp1xD.s: Add tests of the VMSR ad VMRS instructions in
	priviledged modes.
	* gas/arm/vfp1xD.d: Update expected output.
---

diff --git a/gas/ChangeLog b/gas/ChangeLog
index 9209d4ded2d..b6fe7e3f871 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,11 @@
+2012-03-20  Nick Clifton  <nickc@redhat.com>
+
+	* config/tc-arm.c (do_vmrs): Accept priviledged mode VFP system
+	registers.
+	(do_vmsr): Likewise.
+	(arm_opcode_insns): Do not default to using the FPSCR register in
+	the VMRS and VMSR registers.
+
 2012-03-16  Roland McGrath  <mcgrathr@google.com>
 
 	* config/tc-i386.h [TE_NACL] (ELF_TARGET_FORMAT32, ELF_TARGET_FORMAT64):
diff --git a/gas/config/tc-arm.c b/gas/config/tc-arm.c
index 8b0f6da5ede..9222aff21e4 100644
--- a/gas/config/tc-arm.c
+++ b/gas/config/tc-arm.c
@@ -8102,8 +8102,18 @@ do_vmrs (void)
       return;
     }
 
-  if (inst.operands[1].reg != 1)
-    first_error (_("operand 1 must be FPSCR"));
+  switch (inst.operands[1].reg)
+    {
+    case 0: /* FPSID */
+    case 1: /* FPSCR */
+    case 6: /* MVFR1 */
+    case 7: /* MVFR0 */
+    case 8: /* FPEXC */
+      inst.instruction |= (inst.operands[1].reg << 16);
+      break;
+    default:
+      first_error (_("operand 1 must be a VFP extension System Register"));
+    }
 
   inst.instruction |= (Rt << 12);
 }
@@ -8121,8 +8131,16 @@ do_vmsr (void)
       return;
     }
 
-  if (inst.operands[0].reg != 1)
-    first_error (_("operand 0 must be FPSCR"));
+  switch (inst.operands[0].reg)
+    {
+    case 0: /* FPSID  */
+    case 1: /* FPSCR  */
+    case 8: /* FPEXC */
+      inst.instruction |= (inst.operands[0].reg << 16);
+      break;
+    default:
+      first_error (_("operand 0 must be FPSID or FPSCR pr FPEXC"));
+    }
 
   inst.instruction |= (Rt << 12);
 }
@@ -18147,8 +18165,8 @@ static const struct asm_opcode insns[] =
  cCE("fmrs",	e100a10, 2, (RR, RVS),	      vfp_reg_from_sp),
  cCE("fmsr",	e000a10, 2, (RVS, RR),	      vfp_sp_from_reg),
  cCE("fmstat",	ef1fa10, 0, (),		      noargs),
- cCE("vmrs",	ef10a10, 2, (APSR_RR, RVC),   vmrs),
- cCE("vmsr",	ee10a10, 2, (RVC, RR),        vmsr),
+ cCE("vmrs",	ef00a10, 2, (APSR_RR, RVC),   vmrs),
+ cCE("vmsr",	ee00a10, 2, (RVC, RR),        vmsr),
  cCE("fsitos",	eb80ac0, 2, (RVS, RVS),	      vfp_sp_monadic),
  cCE("fuitos",	eb80a40, 2, (RVS, RVS),	      vfp_sp_monadic),
  cCE("ftosis",	ebd0a40, 2, (RVS, RVS),	      vfp_sp_monadic),
diff --git a/gas/testsuite/ChangeLog b/gas/testsuite/ChangeLog
index 7ac59cd7002..5fc356706db 100644
--- a/gas/testsuite/ChangeLog
+++ b/gas/testsuite/ChangeLog
@@ -1,3 +1,9 @@
+2012-03-20  Nick Clifton  <nickc@redhat.com>
+
+	* gas/arm/vfp1xD.s: Add tests of the VMSR ad VMRS instructions in
+	priviledged modes.
+	* gas/arm/vfp1xD.d: Update expected output.
+
 2012-03-16  Matthew Gretton-Dann  <matther.gretton-dann@arm.com>
 
 	* gas/testsuite/gas/arm/any-idiv.d: New testcase.
diff --git a/gas/testsuite/gas/arm/vfp1xD.d b/gas/testsuite/gas/arm/vfp1xD.d
index eebc72bdae7..62b19570c8f 100644
--- a/gas/testsuite/gas/arm/vfp1xD.d
+++ b/gas/testsuite/gas/arm/vfp1xD.d
@@ -278,5 +278,12 @@ Disassembly of section .text:
 0+430 <[^>]*> eee1ba10 	vmsr	fpscr, fp
 0+434 <[^>]*> eee1ca10 	vmsr	fpscr, ip
 0+438 <[^>]*> eee1ea10 	vmsr	fpscr, lr
-0+43c <[^>]*> e1a00000 	nop			; \(mov r0, r0\)
-
+0+43c <[^>]*> eee01a10 	vmsr	fpsid, r1
+0+440 <[^>]*> eee82a10 	vmsr	fpexc, r2
+0+444 <[^>]*> eef03a10 	vmrs	r3, fpsid
+0+448 <[^>]*> eef64a10 	vmrs	r4, mvfr1
+0+44c <[^>]*> eef75a10 	vmrs	r5, mvfr0
+0+450 <[^>]*> eef86a10 	vmrs	r6, fpexc
+0+454 <[^>]*> e1a00000 	nop			; \(mov r0, r0\)
+0+458 <[^>]*> e1a00000 	nop			; \(mov r0, r0\)
+0+45c <[^>]*> e1a00000 	nop			; \(mov r0, r0\)
diff --git a/gas/testsuite/gas/arm/vfp1xD.s b/gas/testsuite/gas/arm/vfp1xD.s
index 274a0b1ebcd..0bf58b244fc 100644
--- a/gas/testsuite/gas/arm/vfp1xD.s
+++ b/gas/testsuite/gas/arm/vfp1xD.s
@@ -381,4 +381,14 @@ F:
 	vmsr	FPSCR, r12
 	vmsr	FPSCR, r14
 
+	@ Priviledged externsions to VMSR/VMRS instructions
+	vmsr	FPSID, r1
+	vmsr	FPEXC, r2
+	vmrs	r3, FPSID
+	vmrs	r4, MVFR1
+	vmrs	r5, MVFR0
+	vmrs	r6, FPEXC
+	
+	nop
+	nop
 	nop