[clang] Remove warnings from -Wchar-subscripts for known positive constants (PR #69061)

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github-actions[bot] wrote:

<!--LLVM CODE FORMAT COMMENT: {clang-format}-->


:warning: C/C++ code formatter, clang-format found issues in your code. :warning:

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<summary>
You can test this locally with the following command:
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``````````bash
git-clang-format --diff e6c0e8565cb05d5884de294b546dac85bc11b497 b46d376e803bae29231e313a623f508e22e6c9d6 -- clang/test/Sema/warn-char-subscripts.cpp clang/lib/Sema/SemaExpr.cpp clang/test/Sema/warn-char-subscripts.c
``````````

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<details>
<summary>
View the diff from clang-format here.
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``````````diff
diff --git a/clang/lib/Sema/SemaExpr.cpp b/clang/lib/Sema/SemaExpr.cpp
index 5c84c8ff146a..aa6f6664d1da 100644
--- a/clang/lib/Sema/SemaExpr.cpp
+++ b/clang/lib/Sema/SemaExpr.cpp
@@ -8612,15 +8612,14 @@ ExprResult Sema::BuildVectorLiteral(SourceLocation LParenLoc,
     // For OpenCL, when the number of initializers is a single value,
     // it will be replicated to all components of the vector.
     if (getLangOpts().OpenCL &&
-        VTy->getVectorKind() == VectorType::GenericVector &&
-        numExprs == 1) {
-        QualType ElemTy = VTy->getElementType();
-        ExprResult Literal = DefaultLvalueConversion(exprs[0]);
-        if (Literal.isInvalid())
-          return ExprError();
-        Literal = ImpCastExprToType(Literal.get(), ElemTy,
-                                    PrepareScalarCast(Literal, ElemTy));
-        return BuildCStyleCastExpr(LParenLoc, TInfo, RParenLoc, Literal.get());
+        VTy->getVectorKind() == VectorType::GenericVector && numExprs == 1) {
+      QualType ElemTy = VTy->getElementType();
+      ExprResult Literal = DefaultLvalueConversion(exprs[0]);
+      if (Literal.isInvalid())
+        return ExprError();
+      Literal = ImpCastExprToType(Literal.get(), ElemTy,
+                                  PrepareScalarCast(Literal, ElemTy));
+      return BuildCStyleCastExpr(LParenLoc, TInfo, RParenLoc, Literal.get());
     }
 
     initExprs.append(exprs, exprs + numExprs);
@@ -11078,9 +11077,9 @@ QualType Sema::CheckVectorOperands(ExprResult &LHS, ExprResult &RHS,
 
   // AltiVec-style "vector bool op vector bool" combinations are allowed
   // for some operators but not others.
-  if (!AllowBothBool &&
-      LHSVecType && LHSVecType->getVectorKind() == VectorType::AltiVecBool &&
-      RHSVecType && RHSVecType->getVectorKind() == VectorType::AltiVecBool)
+  if (!AllowBothBool && LHSVecType &&
+      LHSVecType->getVectorKind() == VectorType::AltiVecBool && RHSVecType &&
+      RHSVecType->getVectorKind() == VectorType::AltiVecBool)
     return ReportInvalid ? InvalidOperands(Loc, LHS, RHS) : QualType();
 
   // This operation may not be performed on boolean vectors.
@@ -14864,8 +14863,8 @@ static QualType CheckIncrementDecrementOperand(Sema &S, Expr *Op,
              (ResType->castAs<VectorType>()->getVectorKind() !=
               VectorType::AltiVecBool)) {
     // The z vector extensions allow ++ and -- for non-bool vectors.
-  } else if(S.getLangOpts().OpenCL && ResType->isVectorType() &&
-            ResType->castAs<VectorType>()->getElementType()->isIntegerType()) {
+  } else if (S.getLangOpts().OpenCL && ResType->isVectorType() &&
+             ResType->castAs<VectorType>()->getElementType()->isIntegerType()) {
     // OpenCL V1.2 6.3 says dec/inc ops operate on integer vector types.
   } else {
     S.Diag(OpLoc, diag::err_typecheck_illegal_increment_decrement)
@@ -16354,7 +16353,7 @@ ExprResult Sema::CreateBuiltinUnaryOp(SourceLocation OpLoc,
              // The z vector extensions don't allow + or - with bool vectors.
              (!Context.getLangOpts().ZVector ||
               resultType->castAs<VectorType>()->getVectorKind() !=
-              VectorType::AltiVecBool))
+                  VectorType::AltiVecBool))
       break;
     else if (resultType->isSveVLSBuiltinType()) // SVE vectors allow + and -
       break;

``````````

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https://github.com/llvm/llvm-project/pull/69061