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67 lines
2.4 KiB
LLVM
67 lines
2.4 KiB
LLVM
; RUN: opt < %s -loop-unswitch -disable-output
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define void @test1(i32* %S2) {
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entry:
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br i1 false, label %list_Length.exit, label %cond_true.i
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cond_true.i: ; preds = %entry
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ret void
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list_Length.exit: ; preds = %entry
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br i1 false, label %list_Length.exit9, label %cond_true.i5
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cond_true.i5: ; preds = %list_Length.exit
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ret void
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list_Length.exit9: ; preds = %list_Length.exit
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br i1 false, label %bb78, label %return
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bb44: ; preds = %bb78, %cond_next68
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br i1 %tmp49.not, label %bb62, label %bb62.loopexit
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bb62.loopexit: ; preds = %bb44
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br label %bb62
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bb62: ; preds = %bb62.loopexit, %bb44
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br i1 false, label %return.loopexit, label %cond_next68
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cond_next68: ; preds = %bb62
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br i1 false, label %return.loopexit, label %bb44
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bb78: ; preds = %list_Length.exit9
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%tmp49.not = icmp eq i32* %S2, null ; <i1> [#uses=1]
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br label %bb44
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return.loopexit: ; preds = %cond_next68, %bb62
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%retval.0.ph = phi i32 [ 1, %cond_next68 ], [ 0, %bb62 ] ; <i32> [#uses=1]
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br label %return
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return: ; preds = %return.loopexit, %list_Length.exit9
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%retval.0 = phi i32 [ 0, %list_Length.exit9 ], [ %retval.0.ph, %return.loopexit ] ; <i32> [#uses=0]
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ret void
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}
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define void @test2() nounwind {
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entry:
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br label %bb.nph
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bb.nph: ; preds = %entry
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%and.i13521 = and <4 x i1> undef, undef ; <<4 x i1>> [#uses=1]
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br label %for.body
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for.body: ; preds = %for.body, %bb.nph
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%or.i = select <4 x i1> %and.i13521, <4 x i32> undef, <4 x i32> undef ; <<4 x i32>> [#uses=0]
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br i1 false, label %for.body, label %for.end
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for.end: ; preds = %for.body, %entry
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ret void
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}
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; PR6879
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define i32* @test3(i32** %p_45, i16 zeroext %p_46, i64 %p_47, i64 %p_48, i16 signext %p_49) nounwind {
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entry:
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br label %for.cond
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for.cond: ; preds = %for.cond4, %entry
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br i1 false, label %for.cond4, label %for.end88
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for.cond4: ; preds = %for.cond
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%conv46 = trunc i32 0 to i8 ; <i8> [#uses=2]
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%cmp60 = icmp sgt i8 %conv46, 124 ; <i1> [#uses=1]
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%or.cond = and i1 undef, %cmp60 ; <i1> [#uses=1]
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%cond = select i1 %or.cond, i8 %conv46, i8 undef ; <i8> [#uses=0]
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br label %for.cond
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for.end88: ; preds = %for.cond
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ret i32* undef
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}
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