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freeze index site in BoundsCheckEvent::compile

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This ensures we don't use it as a temporary register when generating
the comparison.
This commit is contained in:
Joel Dice 2010-11-09 11:34:56 -07:00
parent 110f41b7a0
commit 70fcbc2788
1 changed files with 4 additions and 0 deletions
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4
src/compiler.cpp
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@ -4885,10 +4885,14 @@ class BoundsCheckEvent: public Event {
lengthOffset, NoRegister, 1); lengthOffset, NoRegister, 1);
length.acquired = true; length.acquired = true;
index->source->freeze(c, index);
ConstantSite next(nextPromise); ConstantSite next(nextPromise);
apply(c, JumpIfGreater, 4, index->source, index->source, 4, &length, apply(c, JumpIfGreater, 4, index->source, index->source, 4, &length,
&length, BytesPerWord, &next, &next); &length, BytesPerWord, &next, &next);
index->source->thaw(c, index);
if (constant == 0) { if (constant == 0) {
outOfBoundsPromise->offset = a->offset(); outOfBoundsPromise->offset = a->offset();
} }