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; RUN: llvm-upgrade < %s | llvm-as | opt -instcombine -disable-output &&
; RUN: llvm-upgrade < %s | llvm-as | opt -instcombine | llvm-dis | not grep call
;; Test that llvm.stackrestore is removed when possible.
int* %test1(uint %P) {
%tmp = call sbyte* %llvm.stacksave()
call void %llvm.stackrestore(sbyte* %tmp) ;; not restoring anything
%A = alloca int, uint %P
ret int* %A
}
void %test2(sbyte* %X) {
call void %llvm.stackrestore(sbyte* %X) ;; no allocas before return.
ret void
}
declare sbyte* %llvm.stacksave()
declare void %llvm.stackrestore(sbyte*)
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