Revision: 18980
Author: [email protected]
Date: Fri Jan 31 10:07:47 2014 UTC
Log: A64: Make branch to deferred code in StringCharFromCode longer.
TEST=mjsunit/md5
[email protected]
Review URL: https://codereview.chromium.org/141753020
http://code.google.com/p/v8/source/detail?r=18980
Modified:
/branches/experimental/a64/src/a64/codegen-a64.cc
=======================================
--- /branches/experimental/a64/src/a64/codegen-a64.cc Thu Jan 30 12:09:30
2014 UTC
+++ /branches/experimental/a64/src/a64/codegen-a64.cc Fri Jan 31 10:07:47
2014 UTC
@@ -479,7 +479,10 @@
}
// Rule out short external strings.
STATIC_CHECK(kShortExternalStringTag != 0);
- __ TestAndBranchIfAnySet(result, kShortExternalStringMask, call_runtime);
+ // TestAndBranchIfAnySet can emit Tbnz. Do not use it because
call_runtime
+ // can be bound far away in deferred code.
+ __ Tst(result, kShortExternalStringMask);
+ __ B(ne, call_runtime);
__ Ldr(string, FieldMemOperand(string,
ExternalString::kResourceDataOffset));
Label ascii, done;
--
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