[llvm] [ADT] Simplify IntMask (NFC) (PR #158410)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-llvm-adt

Author: Kazu Hirata (kazutakahirata)

<details>
<summary>Changes</summary>

We can do the shift in uintptr_t without going through intptr_t.


---
Full diff: https://github.com/llvm/llvm-project/pull/158410.diff


1 Files Affected:

- (modified) llvm/include/llvm/ADT/PointerIntPair.h (+1-1) 


``````````diff
diff --git a/llvm/include/llvm/ADT/PointerIntPair.h b/llvm/include/llvm/ADT/PointerIntPair.h
index e48e35d476c80..75e3a58e7ca61 100644
--- a/llvm/include/llvm/ADT/PointerIntPair.h
+++ b/llvm/include/llvm/ADT/PointerIntPair.h
@@ -180,7 +180,7 @@ struct PointerIntPairInfo {
     IntShift = (uintptr_t)PtrTraits::NumLowBitsAvailable - IntBits,
 
     /// IntMask - This is the unshifted mask for valid bits of the int type.
-    IntMask = (uintptr_t)(((intptr_t)1 << IntBits) - 1),
+    IntMask = ((uintptr_t)1 << IntBits) - 1,
 
     // ShiftedIntMask - This is the bits for the integer shifted in place.
     ShiftedIntMask = (uintptr_t)(IntMask << IntShift)

``````````

</details>


https://github.com/llvm/llvm-project/pull/158410