llvm-6502/test/Transforms/LoopSimplify/2010-07-15-IncorrectDomFrontierUpdate.ll
Tobias Grosser 74c740052a LoopSimplify does not update domfrontier correctly.
This fixes PR7649.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108513 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-16 05:59:45 +00:00

21 lines
665 B
LLVM

; RUN: opt < %s -domfrontier -loopsimplify -domfrontier -verify-dom-info -analyze
define void @a() nounwind {
entry:
br i1 undef, label %bb37, label %bb1.i
bb1.i: ; preds = %bb1.i, %bb
%indvar = phi i64 [ %indvar.next, %bb1.i ], [ 0, %entry ] ; <i64> [#uses=1]
%indvar.next = add i64 %indvar, 1 ; <i64> [#uses=2]
%exitcond = icmp eq i64 %indvar.next, 576 ; <i1> [#uses=1]
br i1 %exitcond, label %bb37, label %bb1.i
bb37: ; preds = %bb1.i, %bb
br label %return
return: ; preds = %bb39
ret void
}