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