From af1d2ff66233ec8b3d0670abe95a8c1fc35ef1b5 Mon Sep 17 00:00:00 2001
From: Dmitry Selyutin <ghostmansd@gmail.com>
Date: Mon, 29 May 2023 01:04:57 +0300
Subject: [PATCH] ppc/svp64: support optional operands disassembly

---
 opcodes/ppc-svp64-opc.c | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/opcodes/ppc-svp64-opc.c b/opcodes/ppc-svp64-opc.c
index 8c64d95dc39..1c9392913f7 100644
--- a/opcodes/ppc-svp64-opc.c
+++ b/opcodes/ppc-svp64-opc.c
@@ -42,8 +42,29 @@ svp64_extra_desc (const struct svp64_desc *desc, ppc_opindex_t opindex)
     {svp64_desc_cr_in2_opindex, desc->extra_idx_cr_in2},
     {svp64_desc_cr_out_opindex, desc->extra_idx_cr_out},
   };
+  static const struct {
+    int origin;
+    int target;
+  } aliases[] = {
+    {OBF, BF},
+    {PRA0, RA0},
+    {PRAQ, RA},
+    {RAOPT, RA},
+    {RBOPT, RB},
+    {RSO, RS},
+    {TBR, SPR},
+  };
+
+  for (i = 0; i < ARRAY_SIZE (aliases); ++i)
+    {
+      if (opindex == aliases[i].origin)
+	{
+	  opindex = aliases[i].target;
+	  break;
+	}
+    }
 
-  for (i = 0; i < (sizeof (table) / sizeof (table[0])); ++i)
+  for (i = 0; i < ARRAY_SIZE (table); ++i)
     {
       enum svp64_extra extra = table[i].extra;
 
-- 
2.30.2