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Dylan McKay
2a80cc688a
[RegAllocGreedy] Attempt to split unspillable live intervals
Summary: Previously, when allocating unspillable live ranges, we would never attempt to split. We would always bail out and try last ditch graph recoloring. This patch changes this by attempting to split all live intervals before performing recoloring. This fixes LLVM bug PR14879. I can't add test cases for any backends other than AVR because none of them have small enough register classes to trigger the bug. Reviewers: qcolombet Subscribers: MatzeB Differential Revision: https://reviews.llvm.org/D25070 llvm-svn: 282852
Description
llvm with tablegen backend for capstone disassembler
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