https://bugs.llvm.org/show_bug.cgi?id=35373
Bug ID: 35373
Summary: SubRange join failure
Product: libraries
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: Register Allocator
Assignee: unassignedb...@nondot.org
Reporter: david.stutt...@amd.com
CC: llvm-bugs@lists.llvm.org
Created attachment 19452
--> https://bugs.llvm.org/attachment.cgi?id=19452&action=edit
Reproducer for subrange join failure
There are some other SubRange join failures reported, but since the ones I've
investigated have resulted in different fixes I'm filing a fresh one for this
reproducer.
See bug 32773, bug 33152 and bug 33524 for details of the others
The attached reproducer will provoke the problem.
Easiest way to do this is:
llc -march=amdgcn -run-pass simple-register-coalescer -o -
regcoal-subrange-join-seg.mir
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