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Forgot this test earlier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77007 91177308-0d34-0410-b5e6-96231b3b80d8
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test/CodeGen/X86/2009-07-22-LinearScanBug.ll
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test/CodeGen/X86/2009-07-22-LinearScanBug.ll
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; RUN: llvm-as < %s | llc -mtriple=i386-pc-mingw32
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; PR4572
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%"struct.std::valarray<unsigned int>" = type { i32, i32* }
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define void @_ZSt17__gslice_to_indexjRKSt8valarrayIjES2_RS0_(i32 %__o, %"struct.std::valarray<unsigned int>"* nocapture %__l, %"struct.std::valarray<unsigned int>"* nocapture %__s, %"struct.std::valarray<unsigned int>"* nocapture %__i) nounwind {
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entry:
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%0 = alloca i32, i32 undef, align 4 ; <i32*> [#uses=1]
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br i1 undef, label %return, label %bb4
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bb4: ; preds = %bb7.backedge, %entry
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%indvar = phi i32 [ %indvar.next, %bb7.backedge ], [ 0, %entry ] ; <i32> [#uses=2]
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%scevgep24.sum = sub i32 undef, %indvar ; <i32> [#uses=2]
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%scevgep25 = getelementptr i32* %0, i32 %scevgep24.sum ; <i32*> [#uses=1]
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%scevgep27 = getelementptr i32* undef, i32 %scevgep24.sum ; <i32*> [#uses=1]
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%1 = load i32* %scevgep27, align 4 ; <i32> [#uses=0]
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br i1 undef, label %bb7.backedge, label %bb5
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bb5: ; preds = %bb4
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store i32 0, i32* %scevgep25, align 4
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br label %bb7.backedge
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bb7.backedge: ; preds = %bb5, %bb4
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%indvar.next = add i32 %indvar, 1 ; <i32> [#uses=1]
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br label %bb4
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return: ; preds = %entry
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ret void
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}
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