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Cherry pick r294268 to 4.0 branch (RegisterCoalescer: Fix joinReservedPhysReg()) #31237

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MatzeB opened this issue Feb 7, 2017 · 4 comments
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@MatzeB
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@MatzeB MatzeB commented Feb 7, 2017

Bugzilla Link 31889
Resolution FIXED
Resolved on Feb 09, 2017 15:47
Version trunk
OS All
Blocks #30970

Extended Description

This fixes a miscompile in the presence of reserved registers. This is not a regression though (the bug was already present in 3.9) however the fix is simple and low risk.

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@MatzeB MatzeB commented Feb 7, 2017

assigned to @qcolombet

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@MatzeB MatzeB commented Feb 7, 2017

To code owner for 4.0 branch review.

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@MatzeB MatzeB commented Feb 9, 2017

Approved by mail (see llvm-commits).

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@MatzeB MatzeB commented Feb 9, 2017

NFC commit r294630 for preparation, actual change cherry picked to r294631

@llvmbot llvmbot transferred this issue from llvm/llvm-bugzilla-archive Dec 10, 2021
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