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Testcase for instances where a constant only occurs as an operand to a phi node.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37653 91177308-0d34-0410-b5e6-96231b3b80d8
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test/Transforms/GVNPRE/2007-06-18-ConstantInPhi.ll
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test/Transforms/GVNPRE/2007-06-18-ConstantInPhi.ll
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; RUN: llvm-as < %s | opt -gvnpre | llvm-dis
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define void @vorbis_lsp_to_curve() {
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entry:
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br i1 false, label %bb.nph, label %return
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bb.nph: ; preds = %entry
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br label %bb34
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bb34: ; preds = %bb34, %bb.nph
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%p.1 = phi float [ 0x3FE6A09E60000000, %bb.nph ], [ %tmp48, %bb34 ] ; <float> [#uses=1]
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%tmp44 = load float* null ; <float> [#uses=1]
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%tmp46 = sub float %tmp44, 0.000000e+00 ; <float> [#uses=1]
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%tmp48 = mul float %tmp46, %p.1 ; <float> [#uses=1]
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br i1 false, label %bb57, label %bb34
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bb57: ; preds = %bb34
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ret void
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return: ; preds = %entry
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ret void
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}
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