mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-25 12:12:47 +01:00
32 lines
852 B
LLVM
32 lines
852 B
LLVM
; 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
|
|
}
|
|
|