Original emi block is emi0/0.h

Platform: AMD Accelerated Parallel Processing
Version: OpenCL 1.2 AMD APP (1573.4)
Devices: AMD Radeon HD 7900 (Tahiti)
Benchmark: rodinia_heartwall
Optimisations: 0
Substitutions: 0 / 1

An empty block in a "while (1)" statement. Changing the while to if or for or "do {} while" doesn't expose the bug. Changing the argument to the while to 0 leads to a BAD_EXIT_CODE. Changing to other values seems to lead to a BAD_DIFF.
