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Bug 1493900.

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DiD fix.
This commit is contained in:
wolfbeast 2018-10-04 22:04:26 +02:00 • committed by Roy Tam
commit 3757eafab3
1 changed files with 12 additions and 3 deletions
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15
js/src/jit/BacktrackingAllocator.cpp
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@ -1843,10 +1843,19 @@ BacktrackingAllocator::resolveControlFlow()
LiveRange* from = vreg(input).rangeFor(exitOf(predecessor), /* preferRegister = */ true); LiveRange* from = vreg(input).rangeFor(exitOf(predecessor), /* preferRegister = */ true);
MOZ_ASSERT(from); MOZ_ASSERT(from);
if (!alloc().ensureBallast()) if (!alloc().ensureBallast()) {
return false;
if (!moveAtExit(predecessor, from, to, def->type()))
return false; return false;
}
if (mSuccessor->numPredecessors() > 1) {
MOZ_ASSERT(predecessor->mir()->numSuccessors() == 1);
if (!moveAtExit(predecessor, from, to, def->type())) {
return false;
}
} else {
if (!moveAtEntry(successor, from, to, def->type())) {
return false;
}
}
} }
} }
} }