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PowerPC: Fast path in InvalidateICache is only valid if the address is 32-byte aligned.

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This commit is contained in:
Admiral H. Curtiss
2021-08-10 05:37:13 +02:00
parent a27dbe58a6
commit 4afbd87188
1 changed files with 4 additions and 2 deletions
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6
Source/Core/Core/PowerPC/JitCommon/JitCache.cpp
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@ -190,9 +190,11 @@ void JitBaseBlockCache::InvalidateICache(u32 address, u32 length, bool forced)
return; return;
const u32 physical_address = translated.address; const u32 physical_address = translated.address;
// Optimize the common case of length == 32 which is used by Interpreter::dcb* // Optimization for the case of invalidating a single cache line, which is used by the dcb*
// instructions. If the valid_block bit for that cacheline is not set, we can safely skip
// the remaining invalidation logic.
bool destroy_block = true; bool destroy_block = true;
if (length == 32) if (length == 32 && (physical_address & 0x1fu) == 0)
{ {
if (!valid_block.Test(physical_address / 32)) if (!valid_block.Test(physical_address / 32))
destroy_block = false; destroy_block = false;