https://bugs.llvm.org/show_bug.cgi?id=49176
Bug ID: 49176
Summary: Fix shift instruction miscompilation in the AVR
backend
Product: new-bugs
Version: 11.0
Hardware: All
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: new bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Blocks: 48902
There was a critical bug in the AVR backend which meant that many 16-bit shifts
were miscompiled. This has been fixed in https://reviews.llvm.org/D96590
(commit https://reviews.llvm.org/rGefb1cb752bf12149af9c773f702a757ba9721649).
This is a regression from LLVM 11. I think this should be included in the LLVM
12 branch, as without it the AVR backend is almost unusable.
Referenced Bugs:
https://bugs.llvm.org/show_bug.cgi?id=48902
[Bug 48902] [meta] 12.0.0 Release Blockers
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