Commit 1dfcf350 authored by chunyang.dai's avatar chunyang.dai Committed by Commit bot

X87: Eliminate redundant descriptor ElementTransitionAndStoreDescriptor.

port 26ffee2c (r29789).

original commit message:

    It's just the same as StoreTransitionDescriptor.

BUG=

Review URL: https://codereview.chromium.org/1253573004

Cr-Commit-Position: refs/heads/master@{#29831}
parent 477d651c
......@@ -32,7 +32,7 @@ Register* PropertyAccessCompiler::store_calling_convention() {
// receiver, name, scratch1, scratch2, scratch3.
Register receiver = StoreDescriptor::ReceiverRegister();
Register name = StoreDescriptor::NameRegister();
DCHECK(ebx.is(ElementTransitionAndStoreDescriptor::MapRegister()));
DCHECK(ebx.is(StoreTransitionDescriptor::MapRegister()));
static Register registers[] = {receiver, name, ebx, edi, no_reg};
return registers;
}
......
......@@ -69,7 +69,7 @@ Handle<Code> PropertyICCompiler::CompilePolymorphic(MapHandleList* maps,
// Polymorphic keyed stores may use the map register
Register map_reg = scratch1();
DCHECK(kind() != Code::KEYED_STORE_IC ||
map_reg.is(ElementTransitionAndStoreDescriptor::MapRegister()));
map_reg.is(StoreTransitionDescriptor::MapRegister()));
__ mov(map_reg, FieldOperand(receiver(), HeapObject::kMapOffset));
int receiver_count = maps->length();
int number_of_handled_maps = 0;
......
......@@ -46,11 +46,6 @@ const Register StoreGlobalViaContextDescriptor::NameRegister() { return ecx; }
const Register StoreGlobalViaContextDescriptor::ValueRegister() { return eax; }
const Register ElementTransitionAndStoreDescriptor::MapRegister() {
return ebx;
}
const Register InstanceofDescriptor::left() { return eax; }
const Register InstanceofDescriptor::right() { return edx; }
......
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