http://llvm.org/bugs/show_bug.cgi?id=3295
Summary: loop-reduce / scalar-evolution crash expanding
{0,+,2,+,2} addrec
Product: libraries
Version: trunk
Platform: Other
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P2
Component: Loop Optimizer
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
Created an attachment (id=2369)
--> (http://llvm.org/bugs/attachment.cgi?id=2369)
testcase
opt -loop-reduce b.bc crashes trying to emit an addrec of {0,+,2,+,2} because
the SCEV for %indvar returns CouldNotCompute.
And that's correct. This "loop" has a i1 false for a branch condition, meaning
that scev won't analyze it. I'm not sure who's at fault here.
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