PowerPC: Add support for RFC02658 - MMA+ Outer-Product Instructions

gas/
	* config/tc-ppc.c (md_assemble): Only check for prefix opcodes.
	* testsuite/gas/ppc/rfc02658.s: New test.
	* testsuite/gas/ppc/rfc02658.d: Likewise.
	* testsuite/gas/ppc/ppc.exp: Run it.

opcodes/
	* ppc-opc.c (XMSK8, P_GERX4_MASK, P_GERX2_MASK, XX3GERX_MASK): New.
	(powerpc_opcodes): Add dmxvi8gerx4pp, dmxvi8gerx4, dmxvf16gerx2pp,
	dmxvf16gerx2, dmxvbf16gerx2pp, dmxvf16gerx2np, dmxvbf16gerx2,
	dmxvi8gerx4spp, dmxvbf16gerx2np, dmxvf16gerx2pn, dmxvbf16gerx2pn,
	dmxvf16gerx2nn, dmxvbf16gerx2nn, pmdmxvi8gerx4pp, pmdmxvi8gerx4,
	pmdmxvf16gerx2pp, pmdmxvf16gerx2, pmdmxvbf16gerx2pp, pmdmxvf16gerx2np,
	pmdmxvbf16gerx2, pmdmxvi8gerx4spp, pmdmxvbf16gerx2np, pmdmxvf16gerx2pn,
	pmdmxvbf16gerx2pn, pmdmxvf16gerx2nn, pmdmxvbf16gerx2nn.

4 files changed, 81 insertions, 2 deletions

diff --git a/gas/config/tc-ppc.c b/gas/config/tc-ppc.c
index 1acbba1..0868655 100644
--- a/gas/config/tc-ppc.c
+++ b/gas/config/tc-ppc.c
@@ -4065,8 +4065,7 @@ md_assemble (char *str)
   insn_length = 4;
   if ((ppc_cpu & PPC_OPCODE_VLE) != 0 && PPC_OP_SE_VLE (insn))
     insn_length = 2;
-  else if ((opcode->flags & PPC_OPCODE_POWER10) != 0
-	   && PPC_PREFIX_P (insn))
+  else if (PPC_PREFIX_P (insn))
     {
       struct insn_label_list *l;
 
diff --git a/gas/testsuite/gas/ppc/ppc.exp b/gas/testsuite/gas/ppc/ppc.exp
index f27a79c..500738a 100644
--- a/gas/testsuite/gas/ppc/ppc.exp
+++ b/gas/testsuite/gas/ppc/ppc.exp
@@ -146,6 +146,7 @@ run_dump_test "scalarquad"
 run_dump_test "rop"
 run_dump_test "rop-checks"
 run_dump_test "rfc02653"
+run_dump_test "rfc02658"
 
 run_dump_test "dcbt"
 run_dump_test "pr27676"
diff --git a/gas/testsuite/gas/ppc/rfc02658.d b/gas/testsuite/gas/ppc/rfc02658.d
new file mode 100644
index 0000000..7af7b86
--- /dev/null
+++ b/gas/testsuite/gas/ppc/rfc02658.d
@@ -0,0 +1,51 @@
+#as: -mfuture
+#objdump: -dr -Mfuture
+#name: RFC02658 tests
+
+.*
+
+
+Disassembly of section \.text:
+
+0+0 <_start>:
+.*:	(d8 12 00 ec|ec 00 12 d8) 	dmxvbf16gerx2 dm0,vs0,vs2
+.*:	(50 67 8a ec|ec 8a 67 50) 	dmxvbf16gerx2nn dm1,vs10,vs12
+.*:	(98 b3 14 ed|ed 14 b3 98) 	dmxvbf16gerx2np dm2,vs20,vs22
+.*:	(9a 05 9e ed|ed 9e 05 9a) 	dmxvbf16gerx2pn dm3,vs30,vs32
+.*:	(56 52 08 ee|ee 08 52 56) 	dmxvbf16gerx2pp dm4,vs40,vs42
+.*:	(1e a2 92 ee|ee 92 a2 1e) 	dmxvf16gerx2 dm5,vs50,vs52
+.*:	(56 f6 1c ef|ef 1c f6 56) 	dmxvf16gerx2nn dm6,vs60,vs62
+.*:	(98 72 8c ef|ef 8c 72 98) 	dmxvf16gerx2np dm7,vs12,vs14
+.*:	(98 84 0e ec|ec 0e 84 98) 	dmxvf16gerx2pn dm0,vs14,vs16
+.*:	(10 92 90 ec|ec 90 92 10) 	dmxvf16gerx2pp dm1,vs16,vs18
+.*:	(58 a0 12 ed|ed 12 a0 58) 	dmxvi8gerx4 dm2,vs18,vs20
+.*:	(50 c0 96 ed|ed 96 c0 50) 	dmxvi8gerx4pp dm3,vs22,vs24
+.*:	(10 d3 18 ee|ee 18 d3 10) 	dmxvi8gerx4spp dm4,vs24,vs26
+.*:	(ff cf 90 07|07 90 cf ff) 	pmdmxvbf16gerx2nn dm0,vs0,vs2,255,15,3
+.*:	(50 17 00 ec|ec 00 17 50) 
+.*:	(00 00 00 60|60 00 00 00) 	nop
+.*:	(ff cf 90 07|07 90 cf ff) 	pmdmxvbf16gerx2np dm1,vs10,vs12,255,15,3
+.*:	(98 63 8a ec|ec 8a 63 98) 
+.*:	(ff cf 90 07|07 90 cf ff) 	pmdmxvbf16gerx2 dm2,vs20,vs22,255,15,3
+.*:	(d8 b2 14 ed|ed 14 b2 d8) 
+.*:	(ff cf 90 07|07 90 cf ff) 	pmdmxvbf16gerx2pn dm3,vs30,vs32,255,15,3
+.*:	(9a 05 9e ed|ed 9e 05 9a) 
+.*:	(ff cf 90 07|07 90 cf ff) 	pmdmxvbf16gerx2pp dm4,vs40,vs42,255,15,3
+.*:	(56 52 08 ee|ee 08 52 56) 
+.*:	(ff cf 90 07|07 90 cf ff) 	pmdmxvf16gerx2nn dm5,vs50,vs52,255,15,3
+.*:	(56 a6 92 ee|ee 92 a6 56) 
+.*:	(ff cf 90 07|07 90 cf ff) 	pmdmxvf16gerx2np dm6,vs60,vs62,255,15,3
+.*:	(9e f2 1c ef|ef 1c f2 9e) 
+.*:	(ff cf 90 07|07 90 cf ff) 	pmdmxvf16gerx2 dm7,vs12,vs14,255,15,3
+.*:	(18 72 8c ef|ef 8c 72 18) 
+.*:	(ff cf 90 07|07 90 cf ff) 	pmdmxvf16gerx2pn dm0,vs14,vs16,255,15,3
+.*:	(98 84 0e ec|ec 0e 84 98) 
+.*:	(ff cf 90 07|07 90 cf ff) 	pmdmxvf16gerx2pp dm1,vs16,vs18,255,15,3
+.*:	(10 92 90 ec|ec 90 92 10) 
+.*:	(ff ff 90 07|07 90 ff ff) 	pmdmxvi8gerx4 dm2,vs18,vs20,255,15,15
+.*:	(58 a0 12 ed|ed 12 a0 58) 
+.*:	(ff ff 90 07|07 90 ff ff) 	pmdmxvi8gerx4pp dm3,vs22,vs24,255,15,15
+.*:	(50 c0 96 ed|ed 96 c0 50) 
+.*:	(ff ff 90 07|07 90 ff ff) 	pmdmxvi8gerx4spp dm4,vs24,vs26,255,15,15
+.*:	(10 d3 18 ee|ee 18 d3 10) 
+#pass
diff --git a/gas/testsuite/gas/ppc/rfc02658.s b/gas/testsuite/gas/ppc/rfc02658.s
new file mode 100644
index 0000000..b15fb5f
--- /dev/null
+++ b/gas/testsuite/gas/ppc/rfc02658.s
@@ -0,0 +1,28 @@
+        .text
+_start:
+	dmxvbf16gerx2	0,0,2
+	dmxvbf16gerx2nn	1,10,12
+	dmxvbf16gerx2np	2,20,22
+	dmxvbf16gerx2pn	3,30,32
+	dmxvbf16gerx2pp	4,40,42
+	dmxvf16gerx2	5,50,52
+	dmxvf16gerx2nn	6,60,62
+	dmxvf16gerx2np	7,12,14
+	dmxvf16gerx2pn	0,14,16
+	dmxvf16gerx2pp	1,16,18
+	dmxvi8gerx4	2,18,20
+	dmxvi8gerx4pp	3,22,24
+	dmxvi8gerx4spp	4,24,26
+	pmdmxvbf16gerx2nn	0,0,2,0xff,0xf,0x3
+	pmdmxvbf16gerx2np	1,10,12,0xff,0xf,0x3
+	pmdmxvbf16gerx2		2,20,22,0xff,0xf,0x3
+	pmdmxvbf16gerx2pn	3,30,32,0xff,0xf,0x3
+	pmdmxvbf16gerx2pp	4,40,42,0xff,0xf,0x3
+	pmdmxvf16gerx2nn	5,50,52,0xff,0xf,0x3
+	pmdmxvf16gerx2np	6,60,62,0xff,0xf,0x3
+	pmdmxvf16gerx2		7,12,14,0xff,0xf,0x3
+	pmdmxvf16gerx2pn	0,14,16,0xff,0xf,0x3
+	pmdmxvf16gerx2pp	1,16,18,0xff,0xf,0x3
+	pmdmxvi8gerx4		2,18,20,0xff,0xf,0xf
+	pmdmxvi8gerx4pp		3,22,24,0xff,0xf,0xf
+	pmdmxvi8gerx4spp	4,24,26,0xff,0xf,0xf