AllocStackHoisting: fix a quadratic complexity bug when merging stack locations. #68139
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… locations. Use consecutive instruction numbers to check for overlapping instead of iterating over the instruction list. This fixes a compile time problem which shows up if there are many stack locations in a large basic block. rdar://113207176
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atrick
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Aug 25, 2023
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Use consecutive instruction indices to check for overlapping instead of iterating over the instruction list.
This fixes a compile time problem which shows up if there are many stack locations in a large basic block.
rdar://113207176