Contribution of PowerPC port (continuation of 422063005)

src/ppc/assembler-ppc.cc

Index: src/ppc/assembler-ppc.cc
diff --git a/src/ppc/assembler-ppc.cc b/src/ppc/assembler-ppc.cc
index 4b8b165657a145921a35690dec3ec15f03d62853..d91052873fd5b06e01bb6f59ef91105adf453605 100644
--- a/src/ppc/assembler-ppc.cc
+++ b/src/ppc/assembler-ppc.cc
@@ -82,9 +82,6 @@ void CpuFeatures::ProbeImpl(bool cross_compile) {
     // Assume support
     supported_ |= (1u << FPU);
   }
-  if (cpu.cache_line_size() != 0) {
-    cache_line_size_ = cpu.cache_line_size();
-  }
 #elif V8_OS_AIX
   // Assume support FP support and default cache line size
   supported_ |= (1u << FPU);
@@ -1422,11 +1419,13 @@ void Assembler::marker_asm(int mcode) {
 // Code address skips the function descriptor "header".
 // TOC and static chain are ignored and set to 0.
 void Assembler::function_descriptor() {
+#if ABI_USES_FUNCTION_DESCRIPTORS
   DCHECK(pc_offset() == 0);
   RecordRelocInfo(RelocInfo::INTERNAL_REFERENCE);
   emit_ptr(reinterpret_cast<uintptr_t>(pc_) + 3 * kPointerSize);
   emit_ptr(0);
   emit_ptr(0);
+#endif
 }