PPC/s390: Remove unused RelocInfo::Mode::RUNTIME_ENTRY

Port 3f998527

R=sroettger@google.com, joransiu@ca.ibm.com, junyan@redhat.com, midawson@redhat.com
BUG=
LOG=N

Change-Id: I4a92ab1ba942f9303c4f083d9f0b846e924c25f8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3907868
Commit-Queue: Milad Farazmand <mfarazma@redhat.com>
Reviewed-by: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/main@{#83342}

src/codegen/ppc/assembler-ppc-inl.h

@@ -80,7 +80,7 @@ Address RelocInfo::target_internal_reference_address() {
 }
 
 Address RelocInfo::target_address() {
-  DCHECK(IsCodeTarget(rmode_) || IsRuntimeEntry(rmode_) || IsWasmCall(rmode_));
+  DCHECK(IsCodeTarget(rmode_) || IsWasmCall(rmode_));
   return Assembler::target_address_at(pc_, constant_pool_);
 }
 
@@ -216,19 +216,6 @@ void RelocInfo::set_target_external_reference(
 
 Builtin RelocInfo::target_builtin_at(Assembler* origin) { UNREACHABLE(); }
 
-Address RelocInfo::target_runtime_entry(Assembler* origin) {
-  DCHECK(IsRuntimeEntry(rmode_));
-  return target_address();
-}
-
-void RelocInfo::set_target_runtime_entry(Address target,
-                                         WriteBarrierMode write_barrier_mode,
-                                         ICacheFlushMode icache_flush_mode) {
-  DCHECK(IsRuntimeEntry(rmode_));
-  if (target_address() != target)
-    set_target_address(target, write_barrier_mode, icache_flush_mode);
-}
-
 Address RelocInfo::target_off_heap_target() {
   DCHECK(IsOffHeapTarget(rmode_));
   return Assembler::target_address_at(pc_, constant_pool_);
@@ -236,9 +223,8 @@ Address RelocInfo::target_off_heap_target() {
 
 void RelocInfo::WipeOut() {
   DCHECK(IsEmbeddedObjectMode(rmode_) || IsCodeTarget(rmode_) ||
-         IsRuntimeEntry(rmode_) || IsExternalReference(rmode_) ||
-         IsInternalReference(rmode_) || IsInternalReferenceEncoded(rmode_) ||
-         IsOffHeapTarget(rmode_));
+         IsExternalReference(rmode_) || IsInternalReference(rmode_) ||
+         IsInternalReferenceEncoded(rmode_) || IsOffHeapTarget(rmode_));
   if (IsInternalReference(rmode_)) {
     // Jump table entry
     Memory<Address>(pc_) = kNullAddress;

src/codegen/s390/assembler-s390-inl.h

@@ -91,7 +91,7 @@ Address RelocInfo::target_internal_reference_address() {
 
 Address RelocInfo::target_address() {
   DCHECK(IsRelativeCodeTarget(rmode_) || IsCodeTarget(rmode_) ||
-         IsRuntimeEntry(rmode_) || IsWasmCall(rmode_));
+         IsWasmCall(rmode_));
   return Assembler::target_address_at(pc_, constant_pool_);
 }
 
@@ -210,29 +210,15 @@ void RelocInfo::set_target_external_reference(
 
 Builtin RelocInfo::target_builtin_at(Assembler* origin) { UNREACHABLE(); }
 
-Address RelocInfo::target_runtime_entry(Assembler* origin) {
-  DCHECK(IsRuntimeEntry(rmode_));
-  return target_address();
-}
-
 Address RelocInfo::target_off_heap_target() {
   DCHECK(IsOffHeapTarget(rmode_));
   return Assembler::target_address_at(pc_, constant_pool_);
 }
 
-void RelocInfo::set_target_runtime_entry(Address target,
-                                         WriteBarrierMode write_barrier_mode,
-                                         ICacheFlushMode icache_flush_mode) {
-  DCHECK(IsRuntimeEntry(rmode_));
-  if (target_address() != target)
-    set_target_address(target, write_barrier_mode, icache_flush_mode);
-}
-
 void RelocInfo::WipeOut() {
   DCHECK(IsEmbeddedObjectMode(rmode_) || IsCodeTarget(rmode_) ||
-         IsRuntimeEntry(rmode_) || IsExternalReference(rmode_) ||
-         IsInternalReference(rmode_) || IsInternalReferenceEncoded(rmode_) ||
-         IsOffHeapTarget(rmode_));
+         IsExternalReference(rmode_) || IsInternalReference(rmode_) ||
+         IsInternalReferenceEncoded(rmode_) || IsOffHeapTarget(rmode_));
   if (IsInternalReference(rmode_)) {
     // Jump table entry
     Memory<Address>(pc_) = kNullAddress;