[llvm] TargetLibraryInfo: Use pointer index size to determine getSizeTSize(). (PR #118747)

[Owen Anderson via llvm-commits]

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@@ -565,6 +567,16 @@ class TargetLibraryInfo {
   /// \copydoc TargetLibraryInfoImpl::getSizeTSize()
   unsigned getSizeTSize(const Module &M) const { return Impl->getSizeTSize(M); }
 
+  /// Returns an IntegerType corresponding to size_t.
+  IntegerType *getSizeTType(const Module &M) const {
+    return IntegerType::get(M.getContext(), getSizeTSize(M));
+  }
+
+  /// Returns a constant materialized as a size_t type.
+  ConstantInt *getAsSizeT(uint64_t V, const Module &M) const {
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resistor wrote:

I avoided that as I felt the name was ambiguous as to whether it returned a value or a type.

https://github.com/llvm/llvm-project/pull/118747