Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(291)

Unified Diff: src/ic/x64/handler-compiler-x64.cc

Issue 2455953002: [ic] Remove unnecessary access rights checks from the IC handlers. (Closed)
Patch Set: Addressing comments and rebasing Created 4 years, 2 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
« no previous file with comments | « src/ic/s390/handler-compiler-s390.cc ('k') | src/ic/x87/handler-compiler-x87.cc » ('j') | no next file with comments »
Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
Index: src/ic/x64/handler-compiler-x64.cc
diff --git a/src/ic/x64/handler-compiler-x64.cc b/src/ic/x64/handler-compiler-x64.cc
index 8e41df24b42b2a533f87fca449b06398c8876957..0139ad97f1fa833d294dcd1d849819f369711672 100644
--- a/src/ic/x64/handler-compiler-x64.cc
+++ b/src/ic/x64/handler-compiler-x64.cc
@@ -446,16 +446,6 @@ Register PropertyHandlerCompiler::CheckPrototypes(
current = isolate()->global_object();
}
- // Check access rights to the global object. This has to happen after
- // the map check so that we know that the object is actually a global
- // object.
- // This allows us to install generated handlers for accesses to the
- // global proxy (as opposed to using slow ICs). See corresponding code
- // in LookupForRead().
- if (receiver_map->IsJSGlobalProxyMap()) {
- __ CheckAccessGlobalProxy(reg, scratch2, miss);
- }
-
Handle<JSObject> prototype = Handle<JSObject>::null();
Handle<Map> current_map = receiver_map;
Handle<Map> holder_map(holder()->map());
@@ -464,11 +454,6 @@ Register PropertyHandlerCompiler::CheckPrototypes(
while (!current_map.is_identical_to(holder_map)) {
++depth;
- // Only global objects and objects that do not require access
- // checks are allowed in stubs.
- DCHECK(current_map->IsJSGlobalProxyMap() ||
- !current_map->is_access_check_needed());
-
prototype = handle(JSObject::cast(current_map->prototype()));
if (current_map->IsJSGlobalObjectMap()) {
GenerateCheckPropertyCell(masm(), Handle<JSGlobalObject>::cast(current),
« no previous file with comments | « src/ic/s390/handler-compiler-s390.cc ('k') | src/ic/x87/handler-compiler-x87.cc » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698