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1; RUN: opt < %s -passes=instcombine -S | grep "ret i32 %A"2; RUN: opt < %s -passes=dce -S | not grep call.*llvm3 4define i32 @test(i32 %A) {5 %X = or i1 false, false 6 br i1 %X, label %T, label %C7 8T: ; preds = %09 %B = add i32 %A, 1 10 br label %C11 12C: ; preds = %T, %013 %C.upgrd.1 = phi i32 [ %B, %T ], [ %A, %0 ]14 ret i32 %C.upgrd.115}16 17define ptr @test2(i32 %width) {18 %tmp = call ptr @llvm.stacksave( )19 %tmp14 = alloca i32, i32 %width20 ret ptr %tmp1421} 22 23declare ptr @llvm.stacksave()24 25declare void @llvm.lifetime.start.p0(ptr)26declare void @llvm.lifetime.end.p0(ptr)27 28define void @test3() {29 %a = alloca i3230 call void @llvm.lifetime.start.p0(ptr %a)31 call void @llvm.lifetime.end.p0(ptr %a)32 ret void33}34 35