Fix setting array sizes on a constructor

src/compiler/translator/ParseContext.cpp

@@ -3485,8 +3485,10 @@ TIntermTyped *TParseContext::addConstructor(TIntermSequence *arguments,
         }
         TIntermTyped *firstElement = arguments->at(0)->getAsTyped();
         ASSERT(firstElement);
-        type.setArraySize(type.getArraySizes().size() - 1u,
-                          static_cast<unsigned int>(arguments->size()));
+        if (type.getOutermostArraySize() == 0u)
+        {
+            type.sizeOutermostUnsizedArray(static_cast<unsigned int>(arguments->size()));
+        }
         for (size_t i = 0; i < firstElement->getType().getArraySizes().size(); ++i)
         {
             if (type.getArraySizes()[i] == 0u)

src/tests/compiler_tests/ShaderValidation_test.cpp

@@ -5152,3 +5152,24 @@ TEST_F(FragmentShaderValidationTest, UnsizedNamelessParameter)
         FAIL() << "Shader compilation succeeded, expecting failure:\n" << mInfoLog;
     }
 }
+
+// Test that partially unsized array of arrays constructor sizes are validated.
+TEST_F(FragmentShaderValidationTest, PartiallyUnsizedArrayOfArraysConstructor)
+{
+    const std::string &shaderString =
+        R"(#version 310 es
+
+        precision highp float;
+        out vec4 color;
+
+        void main()
+        {
+            int a[][] = int[2][](int[1](1));
+            color = vec4(a[0][0]);
+        })";
+
+    if (compile(shaderString))
+    {
+        FAIL() << "Shader compilation succeeded, expecting failure:\n" << mInfoLog;
+    }
+}
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