Carl Ritson ae266e743c [LVI] Remove recursion from getValueForCondition (NFCI) ...

Convert getValueForCondition to a worklist model instead of using
recursion.

In pathological cases getValueForCondition recurses heavily.
Stack frames are quite expensive on x86-64, and some operating
systems (e.g. Windows) have relatively low stack size limits.
Using a worklist avoids potential failures from stack overflow.

Differential Revision: https://reviews.llvm.org/D104191

2021-06-24 09:58:22 +09:00

76 KiB

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