http://llvm.org/bugs/show_bug.cgi?id=2756
Summary: infinite loop in instcombine after mem2reg
Product: libraries
Version: trunk
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P2
Component: Scalar Optimizations
AssignedTo: [EMAIL PROTECTED]
ReportedBy: [EMAIL PROTECTED]
CC: [email protected]
Created an attachment (id=1984)
--> (http://llvm.org/bugs/attachment.cgi?id=1984)
ll file to reproduce the infinite loop
the attached ll file can be used to generate an infinite loop in instruction
combining when called after a single mem2reg pass.
reproduce by:
1) llvm-as inf_loop_instcombine.ll
2) opt inf_loop_instcombine.ll -mem2reg -instcombine -o=foo.bc
Note: without -mem2reg or by using the default optimizations the pass runs to
completion.
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