[clang] [CIR] Use target int and size_t widths in cir.libc.memchr (PR #217153)

[Erich Keane via cfe-commits]

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@@ -36,6 +36,12 @@ def CIR_Dialect : Dialect {
   let extraClassDeclaration = [{
     static llvm::StringRef getSourceLanguageAttrName() { return "cir.lang"; }
     static llvm::StringRef getTripleAttrName() { return "cir.triple"; }
+    static llvm::StringRef getSizeTypeWidthAttrName() {
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erichkeane wrote:

TBH, we should probably just tablegen these or something... not for this patch to do, but a macro or something with:
`WHATEVER_MACRO(SizeTypeWidth, cir.size_type_width)` probably needs to be the real answer :D

https://github.com/llvm/llvm-project/pull/217153