Drop unnecessary receiver validity checks from {Load,Store}IC_Normal.

Drop unnecessary receiver validity checks from {Load,Store}IC_Normal.

Since these builtins are used as handlers after a map check/dispatch, they don't need to check the receiver again.

R=verwaest@chromium.org

Committed: https://code.google.com/p/v8/source/detail?r=22391

[Jakob Kummerow, 2014-07-14 14:55:28]

As discussed.

[Toon Verwaest, 2014-07-14 15:11:58]

lgtm with nit

https://codereview.chromium.org/390053002/diff/1/src/x64/ic-x64.cc
File src/x64/ic-x64.cc (right):

https://codereview.chromium.org/390053002/diff/1/src/x64/ic-x64.cc#newcode920
src/x64/ic-x64.cc:920: // The return address is on the stack.
That comment is a bit superfluous given that that's always the case for load
ICs.

[Jakob Kummerow, 2014-07-14 15:27:13]

https://codereview.chromium.org/390053002/diff/1/src/x64/ic-x64.cc
File src/x64/ic-x64.cc (right):

https://codereview.chromium.org/390053002/diff/1/src/x64/ic-x64.cc#newcode920
src/x64/ic-x64.cc:920: // The return address is on the stack.
On 2014/07/14 15:11:58, Toon Verwaest wrote:
> That comment is a bit superfluous given that that's always the case for load
> ICs.

Done.

[Toon Verwaest, 2014-07-14 16:14:01]

lgtm

[Jakob Kummerow, 2014-07-15 08:07:38]

Committed patchset #2 manually as r22391 (presubmit successful).