PPC/s390: Move TF parts of MacroAssembler into new TurboAssembler.

Port dfdcaf43
Port 2e1f5567

Original Commit Message:

    This CL introduces TurboAssembler, a super-class of Assembler and sub-class
    of MacroAssembler. TurboAssembler contains all the functionality that is used
    by Turbofan and previously was part of MacroAssembler. TurboAssembler has
    access to the isolate but, in contrast to MacroAssembler, does not expect to
    be running on the main thread.

R=neis@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=v8:6048
LOG=N

Change-Id: I3f51771afefe46410db7cda2625472d78c87f8c6
Reviewed-on: https://chromium-review.googlesource.com/583584Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Jaideep Bajwa <bjaideep@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#46900}

src/ppc/assembler-ppc.cc

@@ -200,9 +200,8 @@ void RelocInfo::unchecked_update_wasm_size(Isolate* isolate, uint32_t size,
 // See assembler-ppc-inl.h for inlined constructors
 
 Operand::Operand(Handle<HeapObject> handle) {
-  AllowHandleDereference using_location;
   rm_ = no_reg;
-  value_.immediate = reinterpret_cast<intptr_t>(handle.location());
+  value_.immediate = reinterpret_cast<intptr_t>(handle.address());
   rmode_ = RelocInfo::EMBEDDED_OBJECT;
 }
 

src/ppc/code-stubs-ppc.cc

@@ -2313,20 +2313,20 @@ void RecordWriteStub::CheckNeedsToInformIncrementalMarker(
   // Fall through when we need to inform the incremental marker.
 }
 
-void ProfileEntryHookStub::MaybeCallEntryHookDelayed(MacroAssembler* masm,
+void ProfileEntryHookStub::MaybeCallEntryHookDelayed(TurboAssembler* tasm,
                                                      Zone* zone) {
-  if (masm->isolate()->function_entry_hook() != NULL) {
-    PredictableCodeSizeScope predictable(masm,
+  if (tasm->isolate()->function_entry_hook() != NULL) {
+    PredictableCodeSizeScope predictable(tasm,
 #if V8_TARGET_ARCH_PPC64
                                          14 * Assembler::kInstrSize);
 #else
                                          11 * Assembler::kInstrSize);
 #endif
-    __ mflr(r0);
-    __ Push(r0, ip);
-    __ CallStubDelayed(new (zone) ProfileEntryHookStub(nullptr));
-    __ Pop(r0, ip);
-    __ mtlr(r0);
+    tasm->mflr(r0);
+    tasm->Push(r0, ip);
+    tasm->CallStubDelayed(new (zone) ProfileEntryHookStub(nullptr));
+    tasm->Pop(r0, ip);
+    tasm->mtlr(r0);
   }
 }
 

src/s390/assembler-s390.cc

@@ -310,7 +310,7 @@ void RelocInfo::unchecked_update_wasm_size(Isolate* isolate, uint32_t size,
 Operand::Operand(Handle<HeapObject> handle) {
   AllowHandleDereference using_location;
   rm_ = no_reg;
-  value_.immediate = reinterpret_cast<intptr_t>(handle.location());
+  value_.immediate = reinterpret_cast<intptr_t>(handle.address());
   rmode_ = RelocInfo::EMBEDDED_OBJECT;
 }
 

src/s390/assembler-s390.h

@@ -336,6 +336,8 @@ class Operand BASE_EMBEDDED {
     return is_heap_object_request_;
   }
 
+  RelocInfo::Mode rmode() const { return rmode_; }
+
  private:
   Register rm_;
   union Value {

src/s390/code-stubs-s390.cc

@@ -2248,10 +2248,10 @@ void RecordWriteStub::CheckNeedsToInformIncrementalMarker(
   // Fall through when we need to inform the incremental marker.
 }
 
-void ProfileEntryHookStub::MaybeCallEntryHookDelayed(MacroAssembler* masm,
+void ProfileEntryHookStub::MaybeCallEntryHookDelayed(TurboAssembler* tasm,
                                                      Zone* zone) {
-  if (masm->isolate()->function_entry_hook() != NULL) {
-    PredictableCodeSizeScope predictable(masm,
+  if (tasm->isolate()->function_entry_hook() != NULL) {
+    PredictableCodeSizeScope predictable(tasm,
 #if V8_TARGET_ARCH_S390X
                                          40);
 #elif V8_HOST_ARCH_S390
@@ -2259,10 +2259,10 @@ void ProfileEntryHookStub::MaybeCallEntryHookDelayed(MacroAssembler* masm,
 #else
                                          32);
 #endif
-    __ CleanseP(r14);
-    __ Push(r14, ip);
-    __ CallStubDelayed(new (zone) ProfileEntryHookStub(nullptr));
-    __ Pop(r14, ip);
+    tasm->CleanseP(r14);
+    tasm->Push(r14, ip);
+    tasm->CallStubDelayed(new (zone) ProfileEntryHookStub(nullptr));
+    tasm->Pop(r14, ip);
   }
 }