| ; RUN: llvm-as < %s | opt -licm -stats 2>&1 | 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 |
| |
| } |