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llvm-mirror/test/Transforms/LoopUnswitch/2007-10-04-DomFrontier.ll
Devang Patel 36b68478cb Fix bug in updating dominance frontier after loop
unswitch when frontier includes basic blocks that 
are not inside loop.

llvm-svn: 42654
2007-10-05 22:29:34 +00:00

30 lines
669 B
LLVM

; RUN: llvm-as < %s | opt -licm -loop-unroll -disable-output
@resonant = external global i32 ; <i32*> [#uses=2]
define void @weightadj() {
entry:
br label %bb
bb: ; preds = %bb158, %entry
store i32 0, i32* @resonant, align 4
br i1 false, label %g.exit, label %bb158
g.exit: ; preds = %bb68, %bb
br i1 false, label %bb68, label %cond_true
cond_true: ; preds = %g.exit
store i32 1, i32* @resonant, align 4
br label %bb68
bb68: ; preds = %cond_true, %g.exit
%tmp71 = icmp slt i32 0, 0 ; <i1> [#uses=1]
br i1 %tmp71, label %g.exit, label %bb158
bb158: ; preds = %bb68, %bb
br i1 false, label %bb, label %return
return: ; preds = %bb158
ret void
}