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Testcase for instances where a constant only occurs as an operand to a phi node.

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llvm-svn: 37653
This commit is contained in:
Owen Anderson 2007-06-19 05:55:01 +00:00
parent 55127e17ac
commit 8cb2c3f5df
1 changed files with 22 additions and 0 deletions
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test/Transforms/GVNPRE/2007-06-18-ConstantInPhi.ll Normal file
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; RUN: llvm-as < %s | opt -gvnpre | llvm-dis
define void @vorbis_lsp_to_curve() {
entry:
br i1 false, label %bb.nph, label %return
bb.nph: ; preds = %entry
br label %bb34
bb34: ; preds = %bb34, %bb.nph
%p.1 = phi float [ 0x3FE6A09E60000000, %bb.nph ], [ %tmp48, %bb34 ] ; <float> [#uses=1]
%tmp44 = load float* null ; <float> [#uses=1]
%tmp46 = sub float %tmp44, 0.000000e+00 ; <float> [#uses=1]
%tmp48 = mul float %tmp46, %p.1 ; <float> [#uses=1]
br i1 false, label %bb57, label %bb34
bb57: ; preds = %bb34
ret void
return: ; preds = %entry
ret void
}