2006-12-02 04:23:10 +00:00
|
|
|
; RUN: llvm-upgrade < %s | llvm-as | opt -instcombine -disable-output &&
|
|
|
|
|
; RUN: llvm-upgrade < %s | llvm-as | opt -instcombine | llvm-dis | not grep call
|
2006-01-13 22:01:47 +00:00
|
|
|
|
|
|
|
|
;; 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*)
|
