diff options
| -rw-r--r-- | src/mem/cache/prefetch/indirect_memory.cc | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/src/mem/cache/prefetch/indirect_memory.cc b/src/mem/cache/prefetch/indirect_memory.cc index 393958c57..d49652fa8 100644 --- a/src/mem/cache/prefetch/indirect_memory.cc +++ b/src/mem/cache/prefetch/indirect_memory.cc @@ -108,6 +108,7 @@ IndirectMemoryPrefetcher::calculatePrefetch(const PrefetchInfo &pfi, if (!miss && !pfi.isWrite() && pfi.getSize() <= 8) { int64_t index = 0; + bool read_index = true; switch(pfi.getSize()) { case sizeof(uint8_t): index = pfi.get<uint8_t>(byteOrder); @@ -122,14 +123,15 @@ IndirectMemoryPrefetcher::calculatePrefetch(const PrefetchInfo &pfi, index = pfi.get<uint64_t>(byteOrder); break; default: - panic("Invalid access size\n"); + // Ignore non-power-of-two sizes + read_index = false; } - if (!pt_entry->enabled) { + if (read_index && !pt_entry->enabled) { // Not enabled (no pattern detected in this stream), // add or update an entry in the pattern detector and // start tracking misses allocateOrUpdateIPDEntry(pt_entry, index); - } else { + } else if (read_index) { // Enabled entry, update the index pt_entry->index = index; if (!pt_entry->increasedIndirectCounter) { |