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; With reassociation, constant folding can eliminate the 12 and -12 constants.
;
; RUN: llvm-as < %s | opt -reassociate -constprop -instcombine -die | llvm-dis | not grep add
int %test(int %arg) {
%tmp1 = sub int -12, %arg
%tmp2 = add int %tmp1, 12
ret int %tmp2
}
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