llvm-6502/test/Transforms/LICM/sink_multiple_exits.ll

23 lines
618 B
LLVM
Raw Normal View History

; This testcase ensures that we can sink instructions from loops with
; multiple exits.
;
; RUN: llvm-as < %s | opt -licm | llvm-dis | %prcontext mul 1 | grep 'Out[12]:'
int %test(int %N, bool %C) {
Entry:
br label %Loop
Loop:
%N_addr.0.pn = phi int [ %dec, %ContLoop ], [ %N, %Entry ]
%tmp.6 = mul int %N, %N_addr.0.pn
%tmp.7 = sub int %tmp.6, %N
%dec = add int %N_addr.0.pn, -1
br bool %C, label %ContLoop, label %Out1
ContLoop:
%tmp.1 = setne int %N_addr.0.pn, 1
br bool %tmp.1, label %Loop, label %Out2
Out1:
ret int %tmp.7
Out2:
ret int %tmp.7
}