cmd/asm, cmd/internal/obj/ppc64: add ISA 3.0 instructions

This change adds new ppc64 instructions from the POWER9 ISA. This includes
compares, loads, maths, register moves and the new random number generator and
copy/paste facilities.

Change-Id: Ife3720b90f5af184ff115bbcdcbce5c1302d39b6
Reviewed-on: https://go-review.googlesource.com/53930
Run-TryBot: Lynn Boger <laboger@linux.vnet.ibm.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>

src/cmd/asm/internal/asm/testdata/ppc64.s

@@ -581,6 +581,10 @@ label1:
 //	cmpb  RA,RS,RB
 	CMPB  R2,R2,R1
 
+//	CMPEQB	RA,RB,BF produces
+//	cmpeqb	BF,RA,RB
+	CMPEQB	R1, R2, CR0
+
 //
 // rotate extended mnemonics map onto other shift instructions
 //
@@ -707,6 +711,10 @@ label1:
 	DCBF	(R1)
 	DCBF	(R1+R2) // DCBF	(R1)(R2*1)
 
+//	LDMX  (RB)(RA*1),RT produces
+//	ldmx  RT,RA,RB
+	LDMX  (R2)(R1*1), R3
+
 //	Population count, X-form
 //	<MNEMONIC> RS,RA produces
 //	<mnemonic> RA,RS
@@ -714,6 +722,17 @@ label1:
 	POPCNTW	R1,R2
 	POPCNTB R1,R2
 
+//	Random number generator, X-form
+//	DARN  L,RT produces
+//	darn  RT,L
+	DARN $1, R1
+
+//	Copy/Paste facility
+//	<MNEMONIC> RB,RA produces
+//	<mnemonic> RA,RB
+	COPY R2,R1
+	PASTECC R2,R1
+
 //	VMX instructions
 
 //	Described as:
@@ -788,6 +807,11 @@ label1:
 	VPMSUMW	V2, V3, V1
 	VPMSUMD	V2, V3, V1
 
+//	Vector multiply-sum, VA-form
+//	<MNEMONIC> VRA, VRB, VRC, VRT produces
+//	<mnemonic> VRT, VRA, VRB, VRC
+	VMSUMUDM V4, V3, V2, V1
+
 //	Vector SUB, VX-form
 //	<MNEMONIC> VRA,VRB,VRT produces
 //	<mnemonic> VRT,VRA,VRB
@@ -885,6 +909,8 @@ label1:
 	VCMPGTSWCC  V3, V2, V1
 	VCMPGTSD    V3, V2, V1
 	VCMPGTSDCC  V3, V2, V1
+	VCMPNEZB    V3, V2, V1
+	VCMPNEZBCC  V3, V2, V1
 
 //	Vector permute, VA-form
 //	<MNEMONIC> VRA,VRB,VRC,VRT produces
@@ -958,6 +984,7 @@ label1:
 //	<mnemonic> RA,XS
 	MFVSRD	    VS0, R1
 	MFVSRWZ	    VS33, R1
+	MFVSRLD	    VS63, R1
 
 //	VSX move to VSR, XX1-form
 //	<MNEMONIC> RA,XT produces
@@ -965,6 +992,8 @@ label1:
 	MTVSRD	    R1, VS0
 	MTVSRWA	    R1, VS31
 	MTVSRWZ	    R1, VS63
+	MTVSRDD	    R1, R2, VS0
+	MTVSRWS	    R1, VS32
 
 //	VSX AND, XX3-form
 //	<MNEMONIC> XA,XB,XT produces
@@ -1062,6 +1091,17 @@ label1:
 	XVCVUXDSP   VS0,VS32
 	XVCVUXWSP   VS0,VS32
 
+// Multiply-Add High Doubleword
+//      <MNEMONIC> RA,RB,RC,RT produces
+//      <mnemonic> RT,RA,RB,RC
+        MADDHD R1,R2,R3,R4
+        MADDHDU R1,R2,R3,R4
+
+// Add Extended using alternate carry bit
+//	ADDEX RA,RB,CY,RT produces
+//	addex RT, RA, RB, CY
+	ADDEX R1, R2, $0, R3
+
 //
 // NOP
 //

src/cmd/internal/obj/ppc64/a.out.go

@@ -396,6 +396,7 @@ const (
 	AADDZECC
 	AADDZEVCC
 	AADDZEV
+	AADDEX
 	AAND
 	AANDCC
 	AANDN
@@ -412,6 +413,7 @@ const (
 	ABVS // Unordered-set
 	ACMP
 	ACMPU
+	ACMPEQB
 	ACNTLZW
 	ACNTLZWCC
 	ACRAND
@@ -712,6 +714,13 @@ const (
 	APOPCNTD
 	APOPCNTW
 	APOPCNTB
+	ACOPY
+	APASTECC
+	ADARN
+	ALDMX
+	AMADDHD
+	AMADDHDU
+	AMADDLD
 
 	/* Vector */
 	ALV
@@ -781,6 +790,7 @@ const (
 	AVPMSUMH
 	AVPMSUMW
 	AVPMSUMD
+	AVMSUMUDM
 	AVR
 	AVRLB
 	AVRLH
@@ -842,6 +852,8 @@ const (
 	AVCMPGTSWCC
 	AVCMPGTSD
 	AVCMPGTSDCC
+	AVCMPNEZB
+	AVCMPNEZBCC
 	AVPERM
 	AVSEL
 	AVSPLT
@@ -885,12 +897,15 @@ const (
 	AMFFPRD
 	AMFVRD
 	AMFVSRWZ
+	AMFVSRLD
 	AMTVSR
 	AMTVSRD
 	AMTFPRD
 	AMTVRD
 	AMTVSRWA
 	AMTVSRWZ
+	AMTVSRDD
+	AMTVSRWS
 	AXXLAND
 	AXXLANDQ
 	AXXLANDC

src/cmd/internal/obj/ppc64/anames.go

@@ -26,6 +26,7 @@ var Anames = []string{
 	"ADDZECC",
 	"ADDZEVCC",
 	"ADDZEV",
+	"ADDEX",
 	"AND",
 	"ANDCC",
 	"ANDN",
@@ -42,6 +43,7 @@ var Anames = []string{
 	"BVS",
 	"CMP",
 	"CMPU",
+	"CMPEQB",
 	"CNTLZW",
 	"CNTLZWCC",
 	"CRAND",
@@ -329,6 +331,13 @@ var Anames = []string{
 	"POPCNTD",
 	"POPCNTW",
 	"POPCNTB",
+	"COPY",
+	"PASTECC",
+	"DARN",
+	"LDMX",
+	"MADDHD",
+	"MADDHDU",
+	"MADDLD",
 	"LV",
 	"LVEBX",
 	"LVEHX",
@@ -396,6 +405,7 @@ var Anames = []string{
 	"VPMSUMH",
 	"VPMSUMW",
 	"VPMSUMD",
+	"VMSUMUDM",
 	"VR",
 	"VRLB",
 	"VRLH",
@@ -457,6 +467,8 @@ var Anames = []string{
 	"VCMPGTSWCC",
 	"VCMPGTSD",
 	"VCMPGTSDCC",
+	"VCMPNEZB",
+	"VCMPNEZBCC",
 	"VPERM",
 	"VSEL",
 	"VSPLT",
@@ -498,12 +510,15 @@ var Anames = []string{
 	"MFFPRD",
 	"MFVRD",
 	"MFVSRWZ",
+	"MFVSRLD",
 	"MTVSR",
 	"MTVSRD",
 	"MTFPRD",
 	"MTVRD",
 	"MTVSRWA",
 	"MTVSRWZ",
+	"MTVSRDD",
+	"MTVSRWS",
 	"XXLAND",
 	"XXLANDQ",
 	"XXLANDC",