diff --git a/src/Magnum/AbstractFramebuffer.cpp b/src/Magnum/AbstractFramebuffer.cpp
index f3c73c4c9..68a55540d 100644
--- a/src/Magnum/AbstractFramebuffer.cpp
+++ b/src/Magnum/AbstractFramebuffer.cpp
@@ -152,7 +152,7 @@ void AbstractFramebuffer::bindImplementationDefault(FramebufferTarget target) {
     } else if(target == FramebufferTarget::Draw) {
         if(state.drawBinding == _id) return;
         state.drawBinding = _id;
-    } else CORRADE_ASSERT_UNREACHABLE();
+    } else CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
 
     /* Binding the framebuffer finally creates it */
     _flags |= ObjectFlag::Created;
@@ -240,7 +240,7 @@ void AbstractFramebuffer::blitImplementationANGLE(AbstractFramebuffer& source, A
     static_cast<void>(destinationRectangle);
     static_cast<void>(mask);
     static_cast<void>(filter);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 
@@ -256,7 +256,7 @@ void AbstractFramebuffer::blitImplementationNV(AbstractFramebuffer& source, Abst
     static_cast<void>(destinationRectangle);
     static_cast<void>(mask);
     static_cast<void>(filter);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 #endif
@@ -442,7 +442,7 @@ void AbstractFramebuffer::invalidateImplementationDefault(const GLsizei count, c
     #else
     static_cast<void>(count);
     static_cast<void>(attachments);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 
@@ -515,7 +515,7 @@ void AbstractFramebuffer::drawBuffersImplementationEXT(GLsizei count, const GLen
     #else
     static_cast<void>(count);
     static_cast<void>(buffers);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 
@@ -528,7 +528,7 @@ void AbstractFramebuffer::drawBuffersImplementationNV(GLsizei count, const GLenu
     #else
     static_cast<void>(count);
     static_cast<void>(buffers);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 #endif
@@ -561,7 +561,7 @@ void AbstractFramebuffer::readBufferImplementationDefault(GLenum buffer) {
     glReadBufferNV(buffer);
     #else
     static_cast<void>(buffer);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 #endif
@@ -593,7 +593,7 @@ void AbstractFramebuffer::readImplementationRobustness(const Range2Di& rectangle
     static_cast<void>(type);
     static_cast<void>(dataSize);
     static_cast<void>(data);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 #endif
diff --git a/src/Magnum/AbstractObject.cpp b/src/Magnum/AbstractObject.cpp
index beaff5bca..24ac34c7a 100644
--- a/src/Magnum/AbstractObject.cpp
+++ b/src/Magnum/AbstractObject.cpp
@@ -107,7 +107,7 @@ namespace {
                 return khrIdentifier;
         }
 
-        CORRADE_ASSERT_UNREACHABLE();
+        CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     }
 }
 #endif
@@ -140,7 +140,7 @@ void AbstractObject::labelImplementationKhr(const GLenum identifier, const GLuin
     static_cast<void>(identifier);
     static_cast<void>(name);
     static_cast<void>(label);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 
@@ -152,7 +152,7 @@ void AbstractObject::labelImplementationExt(const GLenum identifier, const GLuin
     static_cast<void>(identifier);
     static_cast<void>(name);
     static_cast<void>(label);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 
@@ -169,7 +169,7 @@ std::string AbstractObject::getLabelImplementationKhr(const GLenum identifier, c
     #else
     static_cast<void>(identifier);
     static_cast<void>(name);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 
     /* Make place also for the null terminator */
@@ -180,7 +180,7 @@ std::string AbstractObject::getLabelImplementationKhr(const GLenum identifier, c
     #elif !defined(CORRADE_TARGET_NACL)
     glGetObjectLabelKHR(identifier, name, size+1, nullptr, &label[0]);
     #else
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 
     /* Pop null terminator and return the string */
@@ -198,7 +198,7 @@ std::string AbstractObject::getLabelImplementationExt(const GLenum identifier, c
     #else
     static_cast<void>(identifier);
     static_cast<void>(name);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 
     /* Make place also for the null terminator */
@@ -207,7 +207,7 @@ std::string AbstractObject::getLabelImplementationExt(const GLenum identifier, c
     #ifndef CORRADE_TARGET_NACL
     glGetObjectLabelEXT(type, name, size+1, nullptr, &label[0]);
     #else
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 
     /* Pop null terminator and return the string */
diff --git a/src/Magnum/AbstractQuery.cpp b/src/Magnum/AbstractQuery.cpp
index 4f90c7fd8..c4beefffe 100644
--- a/src/Magnum/AbstractQuery.cpp
+++ b/src/Magnum/AbstractQuery.cpp
@@ -55,7 +55,7 @@ AbstractQuery::~AbstractQuery() {
     #elif !defined(CORRADE_TARGET_EMSCRIPTEN)
     glDeleteQueriesEXT(1, &_id);
     #else
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
     _flags |= ObjectFlag::Created;
 }
@@ -66,7 +66,7 @@ void AbstractQuery::createImplementationDefault() {
     #elif !defined(CORRADE_TARGET_EMSCRIPTEN)
     glGenQueriesEXT(1, &_id);
     #else
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 
@@ -126,7 +126,7 @@ template<> Int AbstractQuery::result<Int>() {
     #elif !defined(CORRADE_TARGET_NACL)
     glGetQueryObjectivEXT(_id, GL_QUERY_RESULT_EXT, &result);
     #else
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
     return result;
 }
@@ -138,7 +138,7 @@ template<> UnsignedLong AbstractQuery::result<UnsignedLong>() {
     #elif !defined(CORRADE_TARGET_NACL)
     glGetQueryObjectui64vEXT(_id, GL_QUERY_RESULT_EXT, &result);
     #else
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
     return result;
 }
@@ -150,7 +150,7 @@ template<> Long AbstractQuery::result<Long>() {
     #elif !defined(CORRADE_TARGET_NACL)
     glGetQueryObjecti64vEXT(_id, GL_QUERY_RESULT_EXT, &result);
     #else
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
     return result;
 }
diff --git a/src/Magnum/AbstractShaderProgram.cpp b/src/Magnum/AbstractShaderProgram.cpp
index fc5f2f096..7fc4228f9 100644
--- a/src/Magnum/AbstractShaderProgram.cpp
+++ b/src/Magnum/AbstractShaderProgram.cpp
@@ -478,7 +478,7 @@ void AbstractShaderProgram::uniformImplementationDSAEXT_SSOEXT(const GLint locat
     static_cast<void>(location);
     static_cast<void>(count);
     static_cast<void>(values);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 #endif
@@ -506,7 +506,7 @@ void AbstractShaderProgram::uniformImplementationDSAEXT_SSOEXT(const GLint locat
     static_cast<void>(location);
     static_cast<void>(count);
     static_cast<void>(values);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 #endif
@@ -534,7 +534,7 @@ void AbstractShaderProgram::uniformImplementationDSAEXT_SSOEXT(const GLint locat
     static_cast<void>(location);
     static_cast<void>(count);
     static_cast<void>(values);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 #endif
@@ -562,7 +562,7 @@ void AbstractShaderProgram::uniformImplementationDSAEXT_SSOEXT(const GLint locat
     static_cast<void>(location);
     static_cast<void>(count);
     static_cast<void>(values);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 #endif
@@ -590,7 +590,7 @@ void AbstractShaderProgram::uniformImplementationDSAEXT_SSOEXT(const GLint locat
     static_cast<void>(location);
     static_cast<void>(count);
     static_cast<void>(values);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 #endif
@@ -618,7 +618,7 @@ void AbstractShaderProgram::uniformImplementationDSAEXT_SSOEXT(const GLint locat
     static_cast<void>(location);
     static_cast<void>(count);
     static_cast<void>(values);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 #endif
@@ -646,7 +646,7 @@ void AbstractShaderProgram::uniformImplementationDSAEXT_SSOEXT(const GLint locat
     static_cast<void>(location);
     static_cast<void>(count);
     static_cast<void>(values);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 #endif
@@ -674,7 +674,7 @@ void AbstractShaderProgram::uniformImplementationDSAEXT_SSOEXT(const GLint locat
     static_cast<void>(location);
     static_cast<void>(count);
     static_cast<void>(values);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 #endif
@@ -850,7 +850,7 @@ void AbstractShaderProgram::uniformImplementationDSAEXT_SSOEXT(const GLint locat
     static_cast<void>(location);
     static_cast<void>(count);
     static_cast<void>(values);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 #endif
@@ -878,7 +878,7 @@ void AbstractShaderProgram::uniformImplementationDSAEXT_SSOEXT(const GLint locat
     static_cast<void>(location);
     static_cast<void>(count);
     static_cast<void>(values);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 #endif
@@ -906,7 +906,7 @@ void AbstractShaderProgram::uniformImplementationDSAEXT_SSOEXT(const GLint locat
     static_cast<void>(location);
     static_cast<void>(count);
     static_cast<void>(values);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 #endif
diff --git a/src/Magnum/AbstractTexture.cpp b/src/Magnum/AbstractTexture.cpp
index 815c029ef..e3f3dad94 100644
--- a/src/Magnum/AbstractTexture.cpp
+++ b/src/Magnum/AbstractTexture.cpp
@@ -808,7 +808,7 @@ PixelFormat AbstractTexture::imageFormatForInternalFormat(const TextureFormat in
             return PixelFormat::DepthStencil;
     }
 
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
 }
 
 PixelType AbstractTexture::imageTypeForInternalFormat(const TextureFormat internalFormat) {
@@ -1053,7 +1053,7 @@ PixelType AbstractTexture::imageTypeForInternalFormat(const TextureFormat intern
         #endif
     }
 
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
 }
 #endif
 
@@ -1254,7 +1254,7 @@ void AbstractTexture::storageImplementationFallback(const GLsizei levels, const
     #endif
 
     /* No other targets are available */
-    } else CORRADE_ASSERT_UNREACHABLE();
+    } else CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
 }
 #endif
 
@@ -1269,7 +1269,7 @@ void AbstractTexture::storageImplementationDefault(GLsizei levels, TextureFormat
     static_cast<void>(levels);
     static_cast<void>(internalFormat);
     static_cast<void>(size);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 #endif
@@ -1313,7 +1313,7 @@ void AbstractTexture::storageImplementationFallback(GLsizei levels, TextureForma
     #endif
 
     /* No other targets are available */
-    else CORRADE_ASSERT_UNREACHABLE();
+    else CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
 }
 #endif
 
@@ -1328,7 +1328,7 @@ void AbstractTexture::storageImplementationDefault(GLsizei levels, TextureFormat
     static_cast<void>(levels);
     static_cast<void>(internalFormat);
     static_cast<void>(size);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 #endif
@@ -1511,7 +1511,7 @@ void AbstractTexture::subImageImplementationDefault(GLint level, const Vector3i&
     static_cast<void>(format);
     static_cast<void>(type);
     static_cast<void>(data);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 
@@ -1527,7 +1527,7 @@ void AbstractTexture::compressedSubImageImplementationDefault(const GLint level,
     static_cast<void>(size);
     static_cast<void>(format);
     static_cast<void>(data);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 #endif
@@ -1995,7 +1995,7 @@ void AbstractTexture::DataHelper<3>::setImage(AbstractTexture& texture, const GL
     static_cast<void>(level);
     static_cast<void>(internalFormat);
     static_cast<void>(image);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 
@@ -2016,7 +2016,7 @@ void AbstractTexture::DataHelper<3>::setCompressedImage(AbstractTexture& texture
     #else
     static_cast<void>(level);
     static_cast<void>(image);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 #endif
diff --git a/src/Magnum/Attribute.cpp b/src/Magnum/Attribute.cpp
index f3177be70..10c2f5c0e 100644
--- a/src/Magnum/Attribute.cpp
+++ b/src/Magnum/Attribute.cpp
@@ -49,7 +49,7 @@ UnsignedInt FloatAttribute::size(GLint components, DataType dataType) {
         #endif
     }
 
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
 }
 
 #ifndef MAGNUM_TARGET_GLES2
@@ -66,7 +66,7 @@ UnsignedInt IntAttribute::size(GLint components, DataType dataType) {
             return 4*components;
     }
 
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
 }
 #endif
 
@@ -77,7 +77,7 @@ UnsignedInt DoubleAttribute::size(GLint components, DataType dataType) {
             return 8*components;
     }
 
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
 }
 #endif
 
@@ -103,7 +103,7 @@ UnsignedInt Attribute<Math::Vector<3, Float>>::size(GLint components, DataType d
         #endif
     }
 
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
 }
 
 UnsignedInt Attribute<Math::Vector<4, Float>>::size(GLint components, DataType dataType) {
@@ -136,7 +136,7 @@ UnsignedInt Attribute<Math::Vector<4, Float>>::size(GLint components, DataType d
         #endif
     }
 
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
 }
 
 Debug& operator<<(Debug& debug, SizedAttribute<1, 1>::Components value) {
diff --git a/src/Magnum/Buffer.cpp b/src/Magnum/Buffer.cpp
index d36748df0..f1f6f1d4c 100644
--- a/src/Magnum/Buffer.cpp
+++ b/src/Magnum/Buffer.cpp
@@ -537,7 +537,7 @@ void* Buffer::mapImplementationDefault(MapAccess access) {
     return glMapBufferOES(GLenum(bindSomewhereInternal(_targetHint)), GLenum(access));
     #else
     static_cast<void>(access);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 
@@ -561,7 +561,7 @@ void* Buffer::mapRangeImplementationDefault(GLintptr offset, GLsizeiptr length,
     static_cast<void>(offset);
     static_cast<void>(length);
     static_cast<void>(access);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 
@@ -584,7 +584,7 @@ void Buffer::flushMappedRangeImplementationDefault(GLintptr offset, GLsizeiptr l
     #else
     static_cast<void>(offset);
     static_cast<void>(length);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 
@@ -605,7 +605,7 @@ bool Buffer::unmapImplementationDefault() {
     #elif !defined(CORRADE_TARGET_NACL)
     return glUnmapBufferOES(GLenum(bindSomewhereInternal(_targetHint)));
     #else
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 
diff --git a/src/Magnum/Context.cpp b/src/Magnum/Context.cpp
index 9a37c40fd..2d29ce0de 100644
--- a/src/Magnum/Context.cpp
+++ b/src/Magnum/Context.cpp
@@ -407,7 +407,7 @@ const std::vector<Extension>& Extension::extensions(Version version) {
         #endif
     }
 
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
 }
 
 namespace {
diff --git a/src/Magnum/DebugOutput.cpp b/src/Magnum/DebugOutput.cpp
index f9013ded3..f3e505103 100644
--- a/src/Magnum/DebugOutput.cpp
+++ b/src/Magnum/DebugOutput.cpp
@@ -184,7 +184,7 @@ void DebugOutput::controlImplementationKhr(const GLenum source, const GLenum typ
     static_cast<void>(severity);
     static_cast<void>(ids);
     static_cast<void>(enabled);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 
@@ -206,7 +206,7 @@ void DebugOutput::callbackImplementationKhr(const Callback callback, const void*
             (callbackWrapper, userParam);
         #else
         static_cast<void>(userParam);
-        CORRADE_ASSERT_UNREACHABLE();
+        CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
         #endif
 
     /* Deleting callback */
@@ -219,7 +219,7 @@ void DebugOutput::callbackImplementationKhr(const Callback callback, const void*
         #endif
             (nullptr, nullptr);
         #else
-        CORRADE_ASSERT_UNREACHABLE();
+        CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
         #endif
     }
 }
@@ -296,7 +296,7 @@ void DebugMessage::insertImplementationKhr(const Source source, const Type type,
     static_cast<void>(id);
     static_cast<void>(severity);
     static_cast<void>(string);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 
@@ -305,7 +305,7 @@ void DebugMessage::insertImplementationExt(Source, Type, UnsignedInt, DebugOutpu
     glInsertEventMarkerEXT(string.size(), string.data());
     #else
     static_cast<void>(string);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 
@@ -396,7 +396,7 @@ void DebugGroup::pushImplementationKhr(const Source source, const UnsignedInt id
     static_cast<void>(source);
     static_cast<void>(id);
     static_cast<void>(message);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 
@@ -405,7 +405,7 @@ void DebugGroup::pushImplementationExt(Source, UnsignedInt, const Containers::Ar
     glPushGroupMarkerEXT(message.size(), message.data());
     #else
     static_cast<void>(message);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 
@@ -417,7 +417,7 @@ void DebugGroup::popImplementationKhr() {
     #elif !defined(CORRADE_TARGET_NACL)
     glPopDebugGroupKHR();
     #else
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 
@@ -425,7 +425,7 @@ void DebugGroup::popImplementationExt() {
     #ifndef CORRADE_TARGET_NACL
     glPopGroupMarkerEXT();
     #else
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 
diff --git a/src/Magnum/Framebuffer.cpp b/src/Magnum/Framebuffer.cpp
index 5d05524e9..f17245fb4 100644
--- a/src/Magnum/Framebuffer.cpp
+++ b/src/Magnum/Framebuffer.cpp
@@ -389,7 +389,7 @@ void Framebuffer::textureLayerImplementationDefault(BufferAttachment attachment,
     static_cast<void>(textureId);
     static_cast<void>(mipLevel);
     static_cast<void>(layer);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 #endif
diff --git a/src/Magnum/Implementation/BufferState.cpp b/src/Magnum/Implementation/BufferState.cpp
index a4181ab19..f76d4dff4 100644
--- a/src/Magnum/Implementation/BufferState.cpp
+++ b/src/Magnum/Implementation/BufferState.cpp
@@ -79,7 +79,7 @@ std::size_t BufferState::indexForTarget(Buffer::TargetHint target) {
         #endif
     }
 
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
 }
 
 BufferState::BufferState(Context& context, std::vector<std::string>& extensions): bindings()
diff --git a/src/Magnum/Math/Color.h b/src/Magnum/Math/Color.h
index 137ccc121..5edc72d3b 100644
--- a/src/Magnum/Math/Color.h
+++ b/src/Magnum/Math/Color.h
@@ -62,7 +62,7 @@ template<class T> typename std::enable_if<std::is_floating_point<T>::value, Colo
         case 3: return {p, q, value};
         case 4: return {t, p, value};
         case 5: return {value, p, q};
-        default: CORRADE_ASSERT_UNREACHABLE();
+        default: CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     }
 }
 template<class T> inline typename std::enable_if<std::is_integral<T>::value, Color3<T>>::type fromHSV(typename Color3<T>::HSV hsv) {
diff --git a/src/Magnum/Mesh.cpp b/src/Magnum/Mesh.cpp
index 9dd2c8070..938f1915e 100644
--- a/src/Magnum/Mesh.cpp
+++ b/src/Magnum/Mesh.cpp
@@ -119,7 +119,7 @@ std::size_t Mesh::indexSize(IndexType type) {
         case IndexType::UnsignedInt: return 4;
     }
 
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
 }
 
 Mesh::Mesh(const MeshPrimitive primitive): _primitive{primitive}, _flags{ObjectFlag::DeleteOnDestruction}, _count{0}, _baseVertex{0}, _instanceCount{1},
@@ -373,7 +373,7 @@ void Mesh::bindVAO() {
         #elif !defined(CORRADE_TARGET_NACL)
         glBindVertexArrayOES(current = _id);
         #else
-        CORRADE_ASSERT_UNREACHABLE();
+        CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
         #endif
     }
 }
@@ -389,7 +389,7 @@ void Mesh::createImplementationVAO() {
     #elif !defined(CORRADE_TARGET_NACL)
     glGenVertexArraysOES(1, &_id);
     #else
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
     CORRADE_INTERNAL_ASSERT(_id != Implementation::State::DisengagedBinding);
 }
@@ -409,7 +409,7 @@ void Mesh::destroyImplementationVAO() {
     #elif !defined(CORRADE_TARGET_NACL)
     glDeleteVertexArraysOES(1, &_id);
     #else
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 
@@ -505,7 +505,7 @@ void Mesh::vertexAttribDivisorImplementationANGLE(const GLuint index, const GLui
     #else
     static_cast<void>(index);
     static_cast<void>(divisor);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 #ifndef MAGNUM_TARGET_WEBGL
@@ -515,7 +515,7 @@ void Mesh::vertexAttribDivisorImplementationEXT(const GLuint index, const GLuint
     #else
     static_cast<void>(index);
     static_cast<void>(divisor);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 void Mesh::vertexAttribDivisorImplementationNV(const GLuint index, const GLuint divisor) {
@@ -524,7 +524,7 @@ void Mesh::vertexAttribDivisorImplementationNV(const GLuint index, const GLuint
     #else
     static_cast<void>(index);
     static_cast<void>(divisor);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 #endif
@@ -570,7 +570,7 @@ void Mesh::drawArraysInstancedImplementationANGLE(const GLint baseVertex, const
     static_cast<void>(baseVertex);
     static_cast<void>(count);
     static_cast<void>(instanceCount);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 
@@ -582,7 +582,7 @@ void Mesh::drawArraysInstancedImplementationEXT(const GLint baseVertex, const GL
     static_cast<void>(baseVertex);
     static_cast<void>(count);
     static_cast<void>(instanceCount);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 
@@ -593,7 +593,7 @@ void Mesh::drawArraysInstancedImplementationNV(const GLint baseVertex, const GLs
     static_cast<void>(baseVertex);
     static_cast<void>(count);
     static_cast<void>(instanceCount);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 #endif
@@ -605,7 +605,7 @@ void Mesh::drawElementsInstancedImplementationANGLE(const GLsizei count, const G
     static_cast<void>(count);
     static_cast<void>(indexOffset);
     static_cast<void>(instanceCount);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 
@@ -617,7 +617,7 @@ void Mesh::drawElementsInstancedImplementationEXT(const GLsizei count, const GLi
     static_cast<void>(count);
     static_cast<void>(indexOffset);
     static_cast<void>(instanceCount);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 
@@ -628,7 +628,7 @@ void Mesh::drawElementsInstancedImplementationNV(const GLsizei count, const GLin
     static_cast<void>(count);
     static_cast<void>(indexOffset);
     static_cast<void>(instanceCount);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 #endif
diff --git a/src/Magnum/MeshView.cpp b/src/Magnum/MeshView.cpp
index 3e5b8d70f..aa863dca9 100644
--- a/src/Magnum/MeshView.cpp
+++ b/src/Magnum/MeshView.cpp
@@ -99,7 +99,7 @@ void MeshView::multiDrawImplementationDefault(std::initializer_list<std::referen
         #elif !defined(CORRADE_TARGET_NACL)
         glMultiDrawArraysEXT(GLenum(original._primitive), baseVertex, count, meshes.size());
         #else
-        CORRADE_ASSERT_UNREACHABLE();
+        CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
         #endif
 
     /* Indexed meshes */
@@ -118,7 +118,7 @@ void MeshView::multiDrawImplementationDefault(std::initializer_list<std::referen
             #elif !defined(CORRADE_TARGET_NACL)
             glMultiDrawElementsEXT(GLenum(original._primitive), count, GLenum(original._indexType), indices, meshes.size());
             #else
-            CORRADE_ASSERT_UNREACHABLE();
+            CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
             #endif
         }
     }
diff --git a/src/Magnum/PixelStorage.cpp b/src/Magnum/PixelStorage.cpp
index dd41e0752..0b0e99971 100644
--- a/src/Magnum/PixelStorage.cpp
+++ b/src/Magnum/PixelStorage.cpp
@@ -153,7 +153,7 @@ std::size_t PixelStorage::pixelSize(PixelFormat format, PixelType type) {
             CORRADE_ASSERT(false, "AbstractImage::pixelSize(): invalid PixelType specified for depth/stencil PixelFormat", 0);
     }
 
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
 }
 
 std::tuple<Math::Vector3<std::size_t>, Math::Vector3<std::size_t>, std::size_t> PixelStorage::dataProperties(const PixelFormat format, const PixelType type, const Vector3i& size) const {
diff --git a/src/Magnum/Renderbuffer.cpp b/src/Magnum/Renderbuffer.cpp
index 6a090d29e..a11b002b1 100644
--- a/src/Magnum/Renderbuffer.cpp
+++ b/src/Magnum/Renderbuffer.cpp
@@ -169,7 +169,7 @@ void Renderbuffer::storageMultisampleImplementationANGLE(const GLsizei samples,
     static_cast<void>(samples);
     static_cast<void>(internalFormat);
     static_cast<void>(size);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 
@@ -181,7 +181,7 @@ void Renderbuffer::storageMultisampleImplementationNV(const GLsizei samples, con
     static_cast<void>(samples);
     static_cast<void>(internalFormat);
     static_cast<void>(size);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 #endif
diff --git a/src/Magnum/Renderer.cpp b/src/Magnum/Renderer.cpp
index 2be283e8f..5fcad0bba 100644
--- a/src/Magnum/Renderer.cpp
+++ b/src/Magnum/Renderer.cpp
@@ -94,7 +94,7 @@ void Renderer::setPolygonMode(const PolygonMode mode) {
         (GL_FRONT_AND_BACK, GLenum(mode));
     #else
     static_cast<void>(mode);
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 #endif
@@ -233,7 +233,7 @@ Renderer::GraphicsResetStatus Renderer::graphicsResetStatusImplementationRobustn
     #elif !defined(CORRADE_TARGET_NACL)
     return GraphicsResetStatus(glGetGraphicsResetStatusEXT());
     #else
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     #endif
 }
 #endif
diff --git a/src/Magnum/Shader.cpp b/src/Magnum/Shader.cpp
index cbb4b2963..9a4ef5a8d 100644
--- a/src/Magnum/Shader.cpp
+++ b/src/Magnum/Shader.cpp
@@ -69,7 +69,7 @@ std::string shaderName(const Shader::Type type) {
         case Shader::Type::Fragment:                return "fragment";
     }
 
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
 }
 
 UnsignedInt typeToIndex(const Shader::Type type) {
@@ -84,7 +84,7 @@ UnsignedInt typeToIndex(const Shader::Type type) {
         #endif
     }
 
-    CORRADE_ASSERT_UNREACHABLE();
+    CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
 }
 
 #ifndef MAGNUM_TARGET_GLES
diff --git a/src/Magnum/TimeQuery.h b/src/Magnum/TimeQuery.h
index 4d5b7e068..890f1adf3 100644
--- a/src/Magnum/TimeQuery.h
+++ b/src/Magnum/TimeQuery.h
@@ -152,7 +152,7 @@ class TimeQuery: public AbstractQuery {
             #elif !defined(CORRADE_TARGET_EMSCRIPTEN) && !defined(CORRADE_TARGET_NACL)
             glQueryCounterEXT(id(), GL_TIMESTAMP_EXT);
             #else
-            CORRADE_ASSERT_UNREACHABLE();
+            CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
             #endif
         }
 
diff --git a/src/MagnumPlugins/MagnumFontConverter/Test/MagnumFontConverterGLTest.cpp b/src/MagnumPlugins/MagnumFontConverter/Test/MagnumFontConverterGLTest.cpp
index 6c34c61aa..c2fbcfad6 100644
--- a/src/MagnumPlugins/MagnumFontConverter/Test/MagnumFontConverterGLTest.cpp
+++ b/src/MagnumPlugins/MagnumFontConverter/Test/MagnumFontConverterGLTest.cpp
@@ -88,7 +88,7 @@ void MagnumFontConverterGLTest::exportFont() {
                     case 2: return {23, 0};
                 }
 
-                CORRADE_ASSERT_UNREACHABLE();
+                CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
             }
 
             bool _opened;
diff --git a/src/MagnumPlugins/ObjImporter/ObjImporter.cpp b/src/MagnumPlugins/ObjImporter/ObjImporter.cpp
index 125237f54..7ccee5ed4 100644
--- a/src/MagnumPlugins/ObjImporter/ObjImporter.cpp
+++ b/src/MagnumPlugins/ObjImporter/ObjImporter.cpp
@@ -361,7 +361,7 @@ std::optional<MeshData3D> ObjImporter::doMesh3D(UnsignedInt id) {
 
                 primitive = MeshPrimitive::Triangles;
 
-            } else CORRADE_ASSERT_UNREACHABLE();
+            } else CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
 
             for(const std::string& indexTuple: indexTuples) {
                 std::vector<std::string> indices = Utility::String::split(indexTuple, '/');
diff --git a/src/MagnumPlugins/TgaImageConverter/TgaImageConverter.cpp b/src/MagnumPlugins/TgaImageConverter/TgaImageConverter.cpp
index 6383105a4..d4e37710c 100644
--- a/src/MagnumPlugins/TgaImageConverter/TgaImageConverter.cpp
+++ b/src/MagnumPlugins/TgaImageConverter/TgaImageConverter.cpp
@@ -91,7 +91,7 @@ Containers::Array<char> TgaImageConverter::doExportToData(const ImageView2D& ima
         #endif
             header->imageType = 3;
             break;
-        default: CORRADE_ASSERT_UNREACHABLE();
+        default: CORRADE_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
     }
     header->bpp = pixelSize*8;
     header->width = UnsignedShort(Utility::Endianness::littleEndian(image.size().x()));