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Unified Diff: src/arm64/lithium-codegen-arm64.cc

Issue 263923004: Next bunch of fixes for check elimination. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 6 years, 7 months ago
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Index: src/arm64/lithium-codegen-arm64.cc
diff --git a/src/arm64/lithium-codegen-arm64.cc b/src/arm64/lithium-codegen-arm64.cc
index 17243c8dbe1a18fc689bd220affa05ff9982e3f5..fd9dd5d47aae2878e280c37273b8b40fc2cac091 100644
--- a/src/arm64/lithium-codegen-arm64.cc
+++ b/src/arm64/lithium-codegen-arm64.cc
@@ -2531,9 +2531,15 @@ void LCodeGen::DoConstantS(LConstantS* instr) {
void LCodeGen::DoConstantT(LConstantT* instr) {
- Handle<Object> value = instr->value(isolate());
+ Handle<Object> object = instr->value(isolate());
AllowDeferredHandleDereference smi_check;
- __ LoadObject(ToRegister(instr->result()), value);
+ if (instr->hydrogen()->HasObjectMap()) {
+ Handle<Map> object_map = instr->hydrogen()->ObjectMap().handle();
+ CHECK(object->IsHeapObject());
+ CHECK(!object_map->is_stable() ||
+ *object_map == Handle<HeapObject>::cast(object)->map());
+ }
+ __ LoadObject(ToRegister(instr->result()), object);
}
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