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Remove ppc860, ppc750cl, ppc7450 insns from common ppc.


Back in the day support for these processors was added, we probably
didn't want to waste PPC_OPCODE bits on minor variations.  I've had a
complaint that disassembly of mfspr/mtspr was wrong for power8.  This
patch fixes that problem.

Note that since -m860/-m850/-m821 are new gas options enabling the
mpc8xx specific mfspr/mtspr variants it is possible that this change
will break some mpc8xx assembly code.  ie. you might need to modify
makefiles to pass -m860 to gas.

include/opcode/
	* ppc.h (PPC_OPCODE_750, PPC_OPCODE_7450, PPC_OPCODE_860): Define.
opcodes/
	* ppc-opc.c (PPC750, PPC7450, PPC860): Define using PPC_OPCODE_*.
	* ppc-dis.c (ppc_opts): Add 821, 850 and 860 entries.  Add
	PPC_OPCODE_7450 to 7450 entry.  Add PPC_OPCODE_750 to 750cl entry.
gas/
	* config/tc-ppc.c (md_show_usage): Add -m821, -m850, -m860.
	* doc/c-ppc.texi (PowerPC-Opts): Likewise.
gas/testsuite/
	* gas/ppc/titan.d: Correct mfmcsrr0 disassembly.

diff --git a/gas/config/tc-ppc.c b/gas/config/tc-ppc.c
index 18a11be..ce3257f 100644
--- a/gas/config/tc-ppc.c
+++ b/gas/config/tc-ppc.c
@@ -1281,7 +1281,8 @@ PowerPC options:\n\
 -m476                   generate code for PowerPC 476\n\
 -m7400, -m7410, -m7450, -m7455\n\
                         generate code for PowerPC 7400/7410/7450/7455\n\
--m750cl                 generate code for PowerPC 750cl\n"));
+-m750cl                 generate code for PowerPC 750cl\n\
+-m821, -m850, -m860     generate code for PowerPC 821/850/860\n"));
   fprintf (stream, _("\
 -mppc64, -m620          generate code for PowerPC 620/625/630\n\
 -mppc64bridge           generate code for PowerPC 64, including bridge insns\n\
diff --git a/gas/doc/c-ppc.texi b/gas/doc/c-ppc.texi
index 8e4fce3..d318c96 100644
--- a/gas/doc/c-ppc.texi
+++ b/gas/doc/c-ppc.texi
@@ -75,6 +75,9 @@ Generate code for PowerPC 7400/7410/7450/7455.
 @item -m750cl
 Generate code for PowerPC 750CL.
 
+@item -m821, -m850, -m860
+Generate code for PowerPC 821/850/860.
+
 @item -mppc64, -m620
 Generate code for PowerPC 620/625/630.
 
diff --git a/gas/testsuite/gas/ppc/titan.d b/gas/testsuite/gas/ppc/titan.d
index 45c41bb..e54715a 100644
--- a/gas/testsuite/gas/ppc/titan.d
+++ b/gas/testsuite/gas/ppc/titan.d
@@ -229,8 +229,8 @@ Disassembly of section \.text:
  36c:	(7c 9f 62 a6|a6 62 9f 7c) 	mfivor15 r4
  370:	(7c 93 82 a6|a6 82 93 7c) 	mfivor35 r4
  374:	(7c 93 82 a6|a6 82 93 7c) 	mfivor35 r4
- 378:	(7c 9a 8a a6|a6 8a 9a 7c) 	mfdc_dat r4
- 37c:	(7c 9a 8a a6|a6 8a 9a 7c) 	mfdc_dat r4
+ 378:	(7c 9a 8a a6|a6 8a 9a 7c) 	mfmcsrr0 r4
+ 37c:	(7c 9a 8a a6|a6 8a 9a 7c) 	mfmcsrr0 r4
  380:	(7c 9b 8a a6|a6 8a 9b 7c) 	mfmcsrr1 r4
  384:	(7c 9b 8a a6|a6 8a 9b 7c) 	mfmcsrr1 r4
  388:	(7c 9c 8a a6|a6 8a 9c 7c) 	mfmcsr  r4
diff --git a/include/opcode/ppc.h b/include/opcode/ppc.h
index 5246365..6106dec 100644
--- a/include/opcode/ppc.h
+++ b/include/opcode/ppc.h
@@ -195,6 +195,15 @@ extern const int vle_num_opcodes;
    that isn't a superset of POWER8, we can define this to its own mask.  */
 #define PPC_OPCODE_HTM        PPC_OPCODE_POWER8
 
+/* Opcode is supported by ppc750cl.  */
+#define PPC_OPCODE_750	      0x4000000000ull
+
+/* Opcode is supported by ppc7450.  */
+#define PPC_OPCODE_7450	      0x8000000000ull
+
+/* Opcode is supported by ppc821/850/860.  */
+#define PPC_OPCODE_860	      0x10000000000ull
+
 /* A macro to extract the major opcode from an instruction.  */
 #define PPC_OP(i) (((i) >> 26) & 0x3f)
 
diff --git a/opcodes/ppc-dis.c b/opcodes/ppc-dis.c
index 581d342..797e1e3 100644
--- a/opcodes/ppc-dis.c
+++ b/opcodes/ppc-dis.c
@@ -76,12 +76,18 @@ struct ppc_mopt ppc_opts[] = {
     0 },
   { "7410",    (PPC_OPCODE_PPC | PPC_OPCODE_ALTIVEC),
     0 },
-  { "7450",    (PPC_OPCODE_PPC | PPC_OPCODE_ALTIVEC),
+  { "7450",    (PPC_OPCODE_PPC | PPC_OPCODE_7450 | PPC_OPCODE_ALTIVEC),
     0 },
   { "7455",    (PPC_OPCODE_PPC | PPC_OPCODE_ALTIVEC),
     0 },
-  { "750cl",   (PPC_OPCODE_PPC | PPC_OPCODE_PPCPS)
+  { "750cl",   (PPC_OPCODE_PPC | PPC_OPCODE_750 | PPC_OPCODE_PPCPS)
     , 0 },
+  { "821",     (PPC_OPCODE_PPC | PPC_OPCODE_860),
+    0 },
+  { "850",     (PPC_OPCODE_PPC | PPC_OPCODE_860),
+    0 },
+  { "860",     (PPC_OPCODE_PPC | PPC_OPCODE_860),
+    0 },
   { "a2",      (PPC_OPCODE_PPC | PPC_OPCODE_ISEL | PPC_OPCODE_POWER4
 		| PPC_OPCODE_POWER5 | PPC_OPCODE_CACHELCK | PPC_OPCODE_64
 		| PPC_OPCODE_A2),
diff --git a/opcodes/ppc-opc.c b/opcodes/ppc-opc.c
index 601ec2f..a4aef91 100644
--- a/opcodes/ppc-opc.c
+++ b/opcodes/ppc-opc.c
@@ -2747,9 +2747,9 @@ extract_vleil (unsigned long insn,
 #define PPC440	PPC_OPCODE_440
 #define PPC464	PPC440
 #define PPC476	PPC_OPCODE_476
-#define PPC750	PPC
-#define PPC7450 PPC
-#define PPC860	PPC
+#define PPC750	PPC_OPCODE_750
+#define PPC7450 PPC_OPCODE_7450
+#define PPC860	PPC_OPCODE_860
 #define PPCPS	PPC_OPCODE_PPCPS
 #define PPCVEC	PPC_OPCODE_ALTIVEC
 #define PPCVEC2	PPC_OPCODE_ALTIVEC2

-- 
Alan Modra
Australia Development Lab, IBM


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