[llvm] c0a64ec - [MemoryBuiltins] Use SmallDenseMap for visited map (NFC)

[Nikita Popov via llvm-commits]

Author: Nikita Popov
Date: 2023-09-15T14:26:59+02:00
New Revision: c0a64ec13916e420831cee96b48d3ee938f41a66

URL: https://github.com/llvm/llvm-project/commit/c0a64ec13916e420831cee96b48d3ee938f41a66
DIFF: https://github.com/llvm/llvm-project/commit/c0a64ec13916e420831cee96b48d3ee938f41a66.diff

LOG: [MemoryBuiltins] Use SmallDenseMap for visited map (NFC)

This partially recovers a major compile-time regression introduced
by #65326.

Added: 
    

Modified: 
    llvm/include/llvm/Analysis/MemoryBuiltins.h

Removed: 
    


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diff  --git a/llvm/include/llvm/Analysis/MemoryBuiltins.h b/llvm/include/llvm/Analysis/MemoryBuiltins.h
index 66d1885b92a4905..1d9831889f573ab 100644
--- a/llvm/include/llvm/Analysis/MemoryBuiltins.h
+++ b/llvm/include/llvm/Analysis/MemoryBuiltins.h
@@ -198,7 +198,7 @@ class ObjectSizeOffsetVisitor
   ObjectSizeOpts Options;
   unsigned IntTyBits;
   APInt Zero;
-  DenseMap<Instruction *, SizeOffsetType> SeenInsts;
+  SmallDenseMap<Instruction *, SizeOffsetType, 8> SeenInsts;
 
   APInt align(APInt Size, MaybeAlign Align);