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; RUN: llvm-upgrade < %s | llvm-as | opt -licm -stats |& \
; RUN: grep {memory locations promoted to register}
%X = global int 7
void %testfunc(int %i) {
br label %Loop
Loop:
%j = phi uint [0, %0], [%Next, %Loop]
%x = load int* %X ; Should promote this to a register inside of loop!
%x2 = add int %x, 1
store int %x2, int* %X
%Next = add uint %j, 1
%cond = seteq uint %Next, 0
br bool %cond, label %Out, label %Loop
Out:
ret void
}
void %testhard(int %i) {
br label %Loop
Loop:
%X1 = getelementptr int* %X, long 0
%A = load int* %X1 ; Aliases X, needs to be rewritten
%V = add int %A, 1
%X2 = getelementptr int* %X, long 0
store int %V, int* %X2
br bool false, label %Loop, label %Exit
Exit:
ret void
}
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