[llvm] [IR] Remove unnecessary casts from IntegerType::get. NFC (PR #150299)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-llvm-ir

Author: Craig Topper (topperc)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/150299.diff


1 Files Affected:

- (modified) llvm/lib/IR/Type.cpp (+6-6) 


``````````diff
diff --git a/llvm/lib/IR/Type.cpp b/llvm/lib/IR/Type.cpp
index 5e1bf2863191c..6302614bcb357 100644
--- a/llvm/lib/IR/Type.cpp
+++ b/llvm/lib/IR/Type.cpp
@@ -324,12 +324,12 @@ IntegerType *IntegerType::get(LLVMContext &C, unsigned NumBits) {
 
   // Check for the built-in integer types
   switch (NumBits) {
-  case   1: return cast<IntegerType>(Type::getInt1Ty(C));
-  case   8: return cast<IntegerType>(Type::getInt8Ty(C));
-  case  16: return cast<IntegerType>(Type::getInt16Ty(C));
-  case  32: return cast<IntegerType>(Type::getInt32Ty(C));
-  case  64: return cast<IntegerType>(Type::getInt64Ty(C));
-  case 128: return cast<IntegerType>(Type::getInt128Ty(C));
+  case   1: return Type::getInt1Ty(C);
+  case   8: return Type::getInt8Ty(C);
+  case  16: return Type::getInt16Ty(C);
+  case  32: return Type::getInt32Ty(C);
+  case  64: return Type::getInt64Ty(C);
+  case 128: return Type::getInt128Ty(C);
   default:
     break;
   }

``````````

</details>


https://github.com/llvm/llvm-project/pull/150299