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2008 Jul 12
3
[LLVMdev] Little bug in LoopInfo after Rotate?
...looprotate, etc. (the important here is the loop rotate), is similar to this
(I've stripped the real operations):
define i32 @f() nounwind {
entry:
br label %bb1
bb1: ; preds = %bb3, %bb1, %entry
%i.0.reg2mem.0.ph = phi i32 [ 0, %entry ], [ %i.0.reg2mem.0.ph, %bb1 ],
[ %indvar.next9, %bb3 ] ; <i32> [#uses=4]
%j.0.reg2mem.0 = phi i32 [ 0, %entry ], [ %indvar.next, %bb1 ], [ 0,
%bb3 ] ; <i32> [#uses=3]
%indvar.next = add i32 %j.0.reg2mem.0, 1 ; <i32> [#uses=2]
%exitcond = icmp eq i32 %indvar.next, 16 ; <i1> [#uses=1...