| ; Zero byte allocas should be deleted. |
| |
| ; RUN: llvm-as < %s | opt -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 ; <i32*> [#uses=1] |
| call void (...)* @use( i32* %Y ) |
| %Z = alloca { } ; <{ }*> [#uses=1] |
| call void (...)* @use( { }* %Z ) |
| ret void |
| } |
| |
| define void @test2() { |
| %A = alloca i32 ; <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 ; <i32*> [#uses=1] |
| store i32 123, i32* %B |
| ret void |
| } |
| |