Contribution of PowerPC port (continuation of 422063005) - AIX Common1

src/disassembler.cc

Index: src/disassembler.cc
diff --git a/src/disassembler.cc b/src/disassembler.cc
index bedff451e9f87d0e4bcaae5a21c5b4ed9b6d34b3..215e2b88911c164d0857da74188c388ee4081c94 100644
--- a/src/disassembler.cc
+++ b/src/disassembler.cc
@@ -85,11 +85,14 @@ static int DecodeIt(Isolate* isolate, std::ostream* os,
   } else {
     // No relocation information when printing code stubs.
   }
+#if !V8_TARGET_ARCH_PPC
   int constants = -1;  // no constants being decoded at the start
+#endif
 
   while (pc < end) {
     // First decode instruction so that we know its length.
     byte* prev_pc = pc;
+#if !V8_TARGET_ARCH_PPC
     if (constants > 0) {
       SNPrintF(decode_buffer,
                "%08x       constant",
@@ -118,6 +121,25 @@ static int DecodeIt(Isolate* isolate, std::ostream* os,
         pc += d.InstructionDecode(decode_buffer, pc);
       }
     }
+#else  // !V8_TARGET_ARCH_PPC
+#if ABI_USES_FUNCTION_DESCRIPTORS || V8_OOL_CONSTANT_POOL
+    // Function descriptors are specially decoded and skipped.
+    // Other internal references (load of ool constant pool pointer)
+    // are not since they are a encoded as a regular mov sequence.
+    int skip;
+    if (it != NULL && !it->done() && it->rinfo()->pc() == pc &&
+        it->rinfo()->rmode() == RelocInfo::INTERNAL_REFERENCE &&
+        (skip = Assembler::DecodeInternalReference(decode_buffer, pc))) {
+      pc += skip;
+    } else {
+      decode_buffer[0] = '\0';
+      pc += d.InstructionDecode(decode_buffer, pc);
+    }
+#else
+    decode_buffer[0] = '\0';
+    pc += d.InstructionDecode(decode_buffer, pc);
+#endif  // ABI_USES_FUNCTION_DESCRIPTORS || V8_OOL_CONSTANT_POOL
+#endif  // !V8_TARGET_ARCH_PPC
 
     // Collect RelocInfo for this instruction (prev_pc .. pc-1)
     List<const char*> comments(4);