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! int R8; oop[] R9;  // R9 is 64 bits
! oop R10 = R9[R8];  // R10 is 32 bits
! load compressed ptr from wide base ptr:
movl R10, [R9 + R8<<2R8<<3 + 16]
! klassOop R11 = R10._klass;  // R11 is 32 bits
! void* const R12 = GetHeapBase();
! load compressed klass ptr from compressed base ptr:
movl R11, [R12 + R10<<3 + 8]