[llvm] [SPIR-V] Simplify and fix sign-extension bug in convertCharsToWord (PR #207769)

[Arseniy Obolenskiy via llvm-commits]

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@@ -161,7 +161,7 @@ static uint32_t convertCharsToWord(const StringRef &Str, unsigned i) {
     if (StrIndex < Str.size()) { // If it's within the string, get a real char.
       CharToAdd = Str[StrIndex];
     }
-    Word |= (CharToAdd << (WordIndex * 8));
+    Word |= (static_cast<uint32_t>(CharToAdd) << (WordIndex * 8));
   }
   return Word;
 }
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aobolensk wrote:

Yes, that could be replaced with memcpy, thanks! 

https://github.com/llvm/llvm-project/pull/207769