Reviewers: Rodolph Perfetta (ARM),
Description:
A64: Support the --deopt_every_n_times flag.
Please review this at https://codereview.chromium.org/146833016/
SVN Base: https://v8.googlecode.com/svn/branches/experimental/a64
Affected files (+8, -1 lines):
M src/a64/lithium-codegen-a64.cc
Index: src/a64/lithium-codegen-a64.cc
diff --git a/src/a64/lithium-codegen-a64.cc b/src/a64/lithium-codegen-a64.cc
index
2fb24347528e65cdca6cd58b663f72a349f53c41..53019b8de874c1e1756ee8eedc69f25ddb7ecbe0
100644
--- a/src/a64/lithium-codegen-a64.cc
+++ b/src/a64/lithium-codegen-a64.cc
@@ -884,7 +884,14 @@ void LCodeGen::Deoptimize(LEnvironment* environment,
return;
}
- TODO_UNIMPLEMENTED("Add support for deopt_every_n_times flag.");
+ ASSERT(FLAG_deopt_every_n_times < 2); // Other values not supported on
A64.
+ if (FLAG_deopt_every_n_times == 1 &&
+ !info()->IsStub() &&
+ info()->opt_count() == id) {
+ __ Jump(entry, RelocInfo::RUNTIME_ENTRY);
+ return;
+ }
+
if (FLAG_trap_on_deopt && info()->IsOptimizing()) {
__ Debug("trap_on_deopt", __LINE__, BREAK);
}
--
--
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