[clang] [clang] Compound Literal Statement Constant Expression Assertion Fix (PR #139479)

[Aaron Ballman via cfe-commits]

================
@@ -7241,10 +7241,21 @@ Sema::BuildCompoundLiteralExpr(SourceLocation LParenLoc, TypeSourceInfo *TInfo,
           ? VK_PRValue
           : VK_LValue;
 
+  // C99 6.5.2.5
+  //  "If the compound literal occurs outside the body of a function, the
+  //  initializer list shall consist of constant expressions."
   if (IsFileScope)
     if (auto ILE = dyn_cast<InitListExpr>(LiteralExpr))
       for (unsigned i = 0, j = ILE->getNumInits(); i != j; i++) {
         Expr *Init = ILE->getInit(i);
+        if (!Init->isTypeDependent() && !Init->isValueDependent() &&
+            !Init->getType()->isDependentType())
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AaronBallman wrote:

I don't think you need the check for `!Init->getType()->isDependentType()` because `computeDependence()` on the expression should already account for that, shouldn't it?

https://github.com/llvm/llvm-project/pull/139479