; Zero byte allocas should be deleted. ; RUN: opt %s -instcombine | llvm-dis | \ ; RUN: not grep alloca ; END. declare void @use(...) define void @test() { %X = alloca [0 x i32] ; <[0 x i32]*> [#uses=1] call void (...)* @use( [0 x i32]* %X ) %Y = alloca i32, i32 0 ; [#uses=1] call void (...)* @use( i32* %Y ) %Z = alloca { } ; <{ }*> [#uses=1] call void (...)* @use( { }* %Z ) ret void } define void @test2() { %A = alloca i32 ; [#uses=1] store i32 123, i32* %A ret void } define void @test3() { %A = alloca { i32 } ; <{ i32 }*> [#uses=1] %B = getelementptr { i32 }* %A, i32 0, i32 0 ; [#uses=1] store i32 123, i32* %B ret void }