llvm-project/llvm/test/Analysis/LoopInfo/2003-05-15-NestingProblem.ll

32 lines
958 B
LLVM

; This testcase was incorrectly computing that the loopentry.7 loop was
; not a child of the loopentry.6 loop.
;
; RUN: opt < %s -analyze -loops | FileCheck %s
; CHECK: Loop at depth 4 containing: %loopentry.7<header><latch><exiting>
define void @getAndMoveToFrontDecode() {
br label %endif.2
endif.2: ; preds = %loopexit.5, %0
br i1 false, label %loopentry.5, label %UnifiedExitNode
loopentry.5: ; preds = %loopexit.6, %endif.2
br i1 false, label %loopentry.6, label %UnifiedExitNode
loopentry.6: ; preds = %loopentry.7, %loopentry.5
br i1 false, label %loopentry.7, label %loopexit.6
loopentry.7: ; preds = %loopentry.7, %loopentry.6
br i1 false, label %loopentry.7, label %loopentry.6
loopexit.6: ; preds = %loopentry.6
br i1 false, label %loopentry.5, label %loopexit.5
loopexit.5: ; preds = %loopexit.6
br i1 false, label %endif.2, label %UnifiedExitNode
UnifiedExitNode: ; preds = %loopexit.5, %loopentry.5, %endif.2
ret void
}