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Add a test where phi translation was producing a null result.

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llvm-svn: 37563
This commit is contained in:
Owen Anderson 2007-06-12 22:42:35 +00:00
parent fbde93ba1f
commit ebfbf95080
1 changed files with 19 additions and 0 deletions
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test/Transforms/GVNPRE/2007-06-12-PhiTranslate.ll Normal file
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; RUN: llvm-as < %s | opt -gvnpre | llvm-dis
define void @strength_test5(i32* %data) {
entry:
br i1 false, label %cond_next16.preheader, label %cond_true
cond_true: ; preds = %entry
%tmp12 = icmp sgt i32 0, 0 ; <i1> [#uses=1]
br i1 %tmp12, label %return, label %cond_next16.preheader
cond_next16.preheader: ; preds = %cond_true, %entry
%i.01.1.ph = phi i32 [ 1, %entry ], [ 1, %cond_true ] ; <i32> [#uses=1]
%i.01.1 = add i32 0, %i.01.1.ph ; <i32> [#uses=0]
%indvar.next = add i32 0, 1 ; <i32> [#uses=0]
ret void
return: ; preds = %cond_true
ret void
}