[OPT] Identify arrays with unknown length in copy prop arrays #5570
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The code in copy propagate arrays assumes that the length of an OpTypeArray is known at compile time, but that is not true when the size is an OpSpecConstant. We try to fix that assumption. Fixes https://crbug.com/oss-fuzz/66634
s-perron
commented
Feb 12, 2024
s-perron
commented
Feb 12, 2024
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| // |this| does not represent a composite type or the number of components is | ||
| // not known at compile time, the return value will be 0. |
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This changes the comment to reflect what is already done for types like OpRuntimeArray.
sudonatalie
approved these changes
Feb 13, 2024
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The code in copy propagate arrays assumes that the length of an
OpTypeArray is known at compile time, but that is not true when the size
is an OpSpecConstant. We try to fix that assumption.
Fixes https://crbug.com/oss-fuzz/66634