[llvm] bd7c2f1 - [ADT] Simplify PointerBitMask in PointerIntPair.h (NFC) (#158210)

[via llvm-commits]

Author: Kazu Hirata
Date: 2025-09-12T09:45:53-07:00
New Revision: bd7c2f15e8b9ff09cd415e7f8d01117cb0296e6e

URL: https://github.com/llvm/llvm-project/commit/bd7c2f15e8b9ff09cd415e7f8d01117cb0296e6e
DIFF: https://github.com/llvm/llvm-project/commit/bd7c2f15e8b9ff09cd415e7f8d01117cb0296e6e.diff

LOG: [ADT] Simplify PointerBitMask in PointerIntPair.h (NFC) (#158210)

A left shift of (uintptr_t)-1) is simpler.

Added: 
    

Modified: 
    llvm/include/llvm/ADT/PointerIntPair.h

Removed: 
    


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diff  --git a/llvm/include/llvm/ADT/PointerIntPair.h b/llvm/include/llvm/ADT/PointerIntPair.h
index 9cfc65846d5bf..e48e35d476c80 100644
--- a/llvm/include/llvm/ADT/PointerIntPair.h
+++ b/llvm/include/llvm/ADT/PointerIntPair.h
@@ -173,8 +173,7 @@ struct PointerIntPairInfo {
                 "PointerIntPair with integer size too large for pointer");
   enum MaskAndShiftConstants : uintptr_t {
     /// PointerBitMask - The bits that come from the pointer.
-    PointerBitMask =
-        ~(uintptr_t)(((intptr_t)1 << PtrTraits::NumLowBitsAvailable) - 1),
+    PointerBitMask = (~(uintptr_t)0) << PtrTraits::NumLowBitsAvailable,
 
     /// IntShift - The number of low bits that we reserve for other uses, and
     /// keep zero.