ppc/svp64: support svindex instruction

https://libre-soc.org/openpower/sv/
https://libre-soc.org/openpower/sv/remap/#svindex
https://libre-soc.org/openpower/isa/simplev/

diff --git a/gas/testsuite/gas/ppc/ppc.exp b/gas/testsuite/gas/ppc/ppc.exp
index 9f02fa75c21a4a1a257002b74b5d607139de02b9..53c2d0dc328d1050d3849ee658d6aefe4cff1264 100644 (file)
--- a/gas/testsuite/gas/ppc/ppc.exp
+++ b/gas/testsuite/gas/ppc/ppc.exp
@@ -159,3 +159,4 @@ run_dump_test "setvl"
 run_dump_test "svstep"
 run_dump_test "svshape"
 run_dump_test "svremap"
+run_dump_test "svindex"

diff --git a/gas/testsuite/gas/ppc/svindex.d b/gas/testsuite/gas/ppc/svindex.d
new file mode 100644 (file)
index 0000000..f573b85
--- /dev/null
+++ b/gas/testsuite/gas/ppc/svindex.d
@@ -0,0 +1,16 @@
+#as: -mlibresoc
+#objdump: -dr -Mlibresoc
+
+.*:     file format .*
+
+
+Disassembly of section \.text:
+0+ <\.text>:
+.*:    (29 00 00 58|58 00 00 29)       svindex 0,0,1,0,0,0,0
+.*:    (29 00 e0 5b|5b e0 00 29)       svindex 31,0,1,0,0,0,0
+.*:    (29 00 1f 58|58 1f 00 29)       svindex 0,31,1,0,0,0,0
+.*:    (29 f8 00 58|58 00 f8 29)       svindex 0,0,32,0,0,0,0
+.*:    (29 06 00 58|58 00 06 29)       svindex 0,0,1,3,0,0,0
+.*:    (29 01 00 58|58 00 01 29)       svindex 0,0,1,0,1,0,0
+.*:    (a9 00 00 58|58 00 00 a9)       svindex 0,0,1,0,0,1,0
+.*:    (69 00 00 58|58 00 00 69)       svindex 0,0,1,0,0,0,1

diff --git a/gas/testsuite/gas/ppc/svindex.s b/gas/testsuite/gas/ppc/svindex.s
new file mode 100644 (file)
index 0000000..ab256c4
--- /dev/null
+++ b/gas/testsuite/gas/ppc/svindex.s
@@ -0,0 +1,8 @@
+svindex 0,0,1,0,0,0,0
+svindex 31,0,1,0,0,0,0
+svindex 0,31,1,0,0,0,0
+svindex 0,0,32,0,0,0,0
+svindex 0,0,1,3,0,0,0
+svindex 0,0,1,0,1,0,0
+svindex 0,0,1,0,0,1,0
+svindex 0,0,1,0,0,0,1

diff --git a/opcodes/ppc-opc.c b/opcodes/ppc-opc.c
index af67d6dce82b5e3ad07fd299e2be4c13d4ded055..934b1bf4e85a3432278f17390150d4a832aedf2f 100644 (file)
--- a/opcodes/ppc-opc.c
+++ b/opcodes/ppc-opc.c
@@ -3509,6 +3509,7 @@ const struct powerpc_operand powerpc_operands[] =
 #define TO TBR + 1
 #define DUI TO
 #define SVme TO
+#define SVG TO
 #define TO_MASK (0x1f << 21)
   { 0x1f, 21, NULL, NULL, 0 },
 
@@ -3556,6 +3557,7 @@ const struct powerpc_operand powerpc_operands[] =
   /* The UIMM field in a VX form instruction.  */
 #define UIMM SIMM + 1
 #define DCTL UIMM
+#define rmm UIMM
   { 0x1f, 16, NULL, NULL, 0 },
 
   /* The 3-bit UIMM field in a VX form instruction.  */
@@ -3648,6 +3650,7 @@ const struct powerpc_operand powerpc_operands[] =
   /* The RMC or CY field in a Z23 form instruction.  */
 #define RMC A_L + 1
 #define CY RMC
+#define ew RMC
   { 0x3, 9, NULL, NULL, 0 },
 
 #define R RMC + 1
@@ -3836,12 +3839,15 @@ const struct powerpc_operand powerpc_operands[] =
   { 0x3f, 9, NULL, NULL, PPC_OPERAND_NONZERO },
 
 #define vf SVi + 1
+#define sk vf
   { 0x1, 6, NULL, NULL, 0 },
 
 #define vs vf + 1
+#define mm vs
   { 0x1, 7, NULL, NULL, 0 },
 
 #define ms vs + 1
+#define yx ms
   { 0x1, 8, NULL, NULL, 0 },
 
 #define SVLcr ms + 1
@@ -3854,6 +3860,7 @@ const struct powerpc_operand powerpc_operands[] =
   { 0x1f, 16, NULL, NULL, PPC_OPERAND_NONZERO },
 
 #define SVzd SVyd + 1
+#define SVd SVzd
   { 0x1f, 11, NULL, NULL, PPC_OPERAND_NONZERO },
 
 #define SVrm SVzd + 1
@@ -4758,6 +4765,12 @@ const unsigned int num_powerpc_operands = (sizeof (powerpc_operands)
    | (((uint64_t)(xop)) & 0x3f))
 #define SVRM_MASK      SVRM (0x3f, 0x3f)
 
+/* An SVI form instruction. */
+#define SVI(op, xop)                           \
+  (OP (op)                                     \
+   | (((uint64_t)(xop)) & 0x3f))
+#define SVI_MASK       SVI (0x3f, 0x3f)
+
 /* The BO encodings used in extended conditional branch mnemonics.  */
 #define BODNZF (0x0)
 #define BODNZFP        (0x1)
@@ -6835,6 +6848,8 @@ const struct powerpc_opcode powerpc_opcodes[] = {
 {"setvl",      SVL(22,27,0),   SVL_MASK,       SVP64,  PPCVLE, {RT, RA, SVi, vf, vs, ms}},
 {"setvl.",     SVL(22,27,1),   SVL_MASK,       SVP64,  PPCVLE, {RT, RA, SVi, vf, vs, ms}},
 
+{"svindex",    SVI(22,41),     SVI_MASK,       SVP64,  PPCVLE, {SVG, rmm, SVd, ew, yx, mm, sk}},
+
 {"svremap",    SVRM(22,57),    SVRM_MASK,      SVP64,  PPCVLE, {SVme, mi0, mi1, mi2, mo0, mo1, pst}},
 
 {"rotlw",      MME(23,31,0),   MMBME_MASK,  PPCCOM,    PPCVLE|EXT,     {RA, RS, RB}},