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AOT: When expanding the cid range of a single target call, only check the new portion of the range.

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R=fschneider@google.com

Review URL: https://codereview.chromium.org/2367533002 .
This commit is contained in:
Ryan Macnak 2016-09-22 14:30:29 -07:00
parent 77ba5fd087
commit b80dedeb27
1 changed files with 7 additions and 2 deletions
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9
runtime/vm/code_generator.cc
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@ -1106,16 +1106,21 @@ DEFINE_RUNTIME_ENTRY(SingleTargetMiss, 1) {
}
if (old_target.raw() == target_function.raw()) {
intptr_t lower, upper;
intptr_t lower, upper, unchecked_lower, unchecked_upper;
if (receiver.GetClassId() < cache.lower_limit()) {
lower = receiver.GetClassId();
unchecked_lower = receiver.GetClassId();
upper = cache.upper_limit();
unchecked_upper = cache.lower_limit() - 1;
} else {
lower = cache.lower_limit();
unchecked_lower = cache.upper_limit() + 1;
upper = receiver.GetClassId();
unchecked_upper = receiver.GetClassId();
}
if (IsSingleTarget(isolate, zone, lower, upper, target_function, name)) {
if (IsSingleTarget(isolate, zone, unchecked_lower, unchecked_upper,
target_function, name)) {
cache.set_lower_limit(lower);
cache.set_upper_limit(upper);
// Return the ICData. The single target stub will jump to continue in the