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42 lines
1.8 KiB
42 lines
1.8 KiB
; RUN: opt < %s -adce -simplifycfg -S | not grep then:
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define void @dead_test8(i32* %data.1, i32 %idx.1) {
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entry:
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%tmp.1 = load i32, i32* %data.1 ; <i32> [#uses=2]
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%tmp.41 = icmp sgt i32 %tmp.1, 0 ; <i1> [#uses=1]
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br i1 %tmp.41, label %no_exit.preheader, label %return
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no_exit.preheader: ; preds = %entry
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%tmp.11 = getelementptr i32, i32* %data.1, i64 1 ; <i32*> [#uses=1]
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%tmp.22-idxcast = sext i32 %idx.1 to i64 ; <i64> [#uses=1]
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%tmp.28 = getelementptr i32, i32* %data.1, i64 %tmp.22-idxcast ; <i32*> [#uses=1]
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br label %no_exit
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no_exit: ; preds = %endif, %no_exit.preheader
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%k.1 = phi i32 [ %k.0, %endif ], [ 0, %no_exit.preheader ] ; <i32> [#uses=3]
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%i.0 = phi i32 [ %inc.1, %endif ], [ 0, %no_exit.preheader ] ; <i32> [#uses=1]
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%tmp.12 = load i32, i32* %tmp.11 ; <i32> [#uses=1]
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%tmp.14 = sub i32 0, %tmp.12 ; <i32> [#uses=1]
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%tmp.161 = icmp ne i32 %k.1, %tmp.14 ; <i1> [#uses=1]
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br i1 %tmp.161, label %then, label %else
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then: ; preds = %no_exit
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%inc.0 = add i32 %k.1, 1 ; <i32> [#uses=1]
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br label %endif
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else: ; preds = %no_exit
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%dec = add i32 %k.1, -1 ; <i32> [#uses=1]
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br label %endif
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endif: ; preds = %else, %then
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%k.0 = phi i32 [ %dec, %else ], [ %inc.0, %then ] ; <i32> [#uses=1]
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store i32 2, i32* %tmp.28
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%inc.1 = add i32 %i.0, 1 ; <i32> [#uses=2]
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%tmp.4 = icmp slt i32 %inc.1, %tmp.1 ; <i1> [#uses=1]
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br i1 %tmp.4, label %no_exit, label %return
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return: ; preds = %endif, %entry
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ret void
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}
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