http://llvm.org/bugs/show_bug.cgi?id=3346
Summary: Possible bug in linear scan allocator
Product: libraries
Version: trunk
Platform: PC
OS/Version: All
Status: NEW
Severity: normal
Priority: P2
Component: Register Allocator
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
If you apply the attached patch to enable pre-alloc splitting with phi join
creation, telecom-FFT is miscompiled. This occurs at iteration 5 of pre-alloc
splitting (-pre-split-limit=5). However, looking at the diffs from
before/after that iteration, the transformation looks sounds. Could this be a
bug later in codegen (regalloc?) that's being exposed?
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