Fix warnings found by Emscripten 3.1.10

Fix `-Wunused-but-set-variable`, `-Wunqualified-std-cast-call`, and
`-Wliteral-range` warnings.

(cherry picked from commit d8935b27a9af8a6484d271a5b4ebc967a9d0a36f)

core/math/bsp_tree.cpp

@@ -286,7 +286,7 @@ static int _bsp_find_best_half_plane(const Face3 *p_faces, const Vector<int> &p_
 		const Face3 &f = p_faces[indices[i]];
 		Plane p = f.get_plane();
 
-		int num_over = 0, num_under = 0, num_spanning = 0;
+		int num_over = 0, num_under = 0; //num_spanning = 0;
 
 		for (int j = 0; j < ic; j++) {
 
@@ -309,9 +309,9 @@ static int _bsp_find_best_half_plane(const Face3 *p_faces, const Vector<int> &p_
 				}
 			}
 
-			if (over && under)
-				num_spanning++;
-			else if (over)
+			if (over && under) {
+				//num_spanning++;
+			} else if (over)
 				num_over++;
 			else
 				num_under++;

core/math/quick_hull.cpp

@@ -404,7 +404,6 @@ Error QuickHull::build(const Vector<Vector3> &p_points, Geometry::MeshData &r_me
 			if (O->get().plane.is_equal_approx(f.plane)) {
 				//merge and delete edge and contiguous face, while repointing edges (uuugh!)
 				int ois = O->get().indices.size();
-				int merged = 0;
 
 				for (int j = 0; j < ois; j++) {
 					//search a
@@ -420,7 +419,6 @@ Error QuickHull::build(const Vector<Vector3> &p_points, Geometry::MeshData &r_me
 							if (idx != a) {
 								f.indices.insert(i + 1, idx);
 								i++;
-								merged++;
 							}
 							Edge e2(idx, idxn);
 

modules/csg/csg.cpp

@@ -1390,14 +1390,14 @@ void CSGBrushOperation::update_faces(const CSGBrush &p_brush_a, const int p_face
 	if (has_degenerate) return;
 
 	// Ensure B has points either side of or in the plane of A.
-	int in_plane_count = 0, over_count = 0, under_count = 0;
+	int over_count = 0, under_count = 0;
 	Plane plane_a(vertices_a[0], vertices_a[1], vertices_a[2]);
 	ERR_FAIL_COND_MSG(plane_a.normal == Vector3(), "Couldn't form plane from Brush A face.");
 
 	for (int i = 0; i < 3; i++) {
-		if (plane_a.has_point(vertices_b[i]))
-			in_plane_count++;
-		else if (plane_a.is_point_over(vertices_b[i]))
+		if (plane_a.has_point(vertices_b[i])) {
+			// In plane.
+		} else if (plane_a.is_point_over(vertices_b[i]))
 			over_count++;
 		else
 			under_count++;
@@ -1406,16 +1406,15 @@ void CSGBrushOperation::update_faces(const CSGBrush &p_brush_a, const int p_face
 	if (over_count == 3 || under_count == 3) return;
 
 	// Ensure A has points either side of or in the plane of B.
-	in_plane_count = 0;
 	over_count = 0;
 	under_count = 0;
 	Plane plane_b(vertices_b[0], vertices_b[1], vertices_b[2]);
 	ERR_FAIL_COND_MSG(plane_b.normal == Vector3(), "Couldn't form plane from Brush B face.");
 
 	for (int i = 0; i < 3; i++) {
-		if (plane_b.has_point(vertices_a[i]))
-			in_plane_count++;
-		else if (plane_b.is_point_over(vertices_a[i]))
+		if (plane_b.has_point(vertices_a[i])) {
+			// In plane.
+		} else if (plane_b.is_point_over(vertices_a[i]))
 			over_count++;
 		else
 			under_count++;

modules/gdscript/gdscript_compiler.cpp

@@ -1273,7 +1273,6 @@ int GDScriptCompiler::_parse_expression(CodeGen &codegen, const GDScriptParser::
 Error GDScriptCompiler::_parse_block(CodeGen &codegen, const GDScriptParser::BlockNode *p_block, int p_stack_level, int p_break_addr, int p_continue_addr) {
 
 	codegen.push_stack_identifiers();
-	int new_identifiers = 0;
 	codegen.current_line = p_block->line;
 
 	for (int i = 0; i < p_block->statements.size(); i++) {
@@ -1306,7 +1305,6 @@ Error GDScriptCompiler::_parse_block(CodeGen &codegen, const GDScriptParser::Blo
 						// copied because there is no _parse_statement :(
 						codegen.add_stack_identifier(id->name, p_stack_level++);
 						codegen.alloc_stack(p_stack_level);
-						new_identifiers++;
 
 						GDScriptParser::OperatorNode *op = memnew(GDScriptParser::OperatorNode);
 						op->op = GDScriptParser::OperatorNode::OP_ASSIGN;
@@ -1566,8 +1564,6 @@ Error GDScriptCompiler::_parse_block(CodeGen &codegen, const GDScriptParser::Blo
 
 				codegen.add_stack_identifier(lv->name, p_stack_level++);
 				codegen.alloc_stack(p_stack_level);
-				new_identifiers++;
-
 			} break;
 			default: {
 				//expression

scene/3d/voxel_light_baker.cpp

@@ -850,8 +850,6 @@ void VoxelLightBaker::plot_light_directional(const Vector3 &p_direction, const C
 
 	float distance_adv = _get_normal_advance(light_axis);
 
-	int success_count = 0;
-
 	Vector3 light_energy = Vector3(p_color.r, p_color.g, p_color.b) * p_energy * p_indirect_energy;
 
 	int idx = first_leaf;
@@ -915,7 +913,6 @@ void VoxelLightBaker::plot_light_directional(const Vector3 &p_direction, const C
 					light->direct_accum[i][2] += light_energy.z * s;
 				}
 			}
-			success_count++;
 		}
 
 		idx = light_data[idx].next_leaf;

scene/resources/polygon_path_finder.cpp

@@ -144,7 +144,7 @@ Vector<Vector2> PolygonPathFinder::find_path(const Vector2 &p_from, const Vector
 
 	if (!_is_point_inside(from)) {
 
-		float closest_dist = 1e20;
+		float closest_dist = 1e20f;
 		Vector2 closest_point;
 
 		for (Set<Edge>::Element *E = edges.front(); E; E = E->next()) {
@@ -169,7 +169,7 @@ Vector<Vector2> PolygonPathFinder::find_path(const Vector2 &p_from, const Vector
 	};
 
 	if (!_is_point_inside(to)) {
-		float closest_dist = 1e20;
+		float closest_dist = 1e20f;
 		Vector2 closest_point;
 
 		for (Set<Edge>::Element *E = edges.front(); E; E = E->next()) {
@@ -516,7 +516,7 @@ bool PolygonPathFinder::is_point_inside(const Vector2 &p_point) const {
 
 Vector2 PolygonPathFinder::get_closest_point(const Vector2 &p_point) const {
 
-	float closest_dist = 1e20;
+	float closest_dist = 1e20f;
 	Vector2 closest_point;
 
 	for (Set<Edge>::Element *E = edges.front(); E; E = E->next()) {
@@ -536,7 +536,7 @@ Vector2 PolygonPathFinder::get_closest_point(const Vector2 &p_point) const {
 		}
 	}
 
-	ERR_FAIL_COND_V(closest_dist == 1e20, Vector2());
+	ERR_FAIL_COND_V(Math::is_equal_approx(closest_dist, 1e20f), Vector2());
 
 	return closest_point;
 }

servers/visual/visual_server_scene.cpp

@@ -2858,10 +2858,6 @@ void VisualServerScene::_bake_gi_probe_light(const GIProbeDataHeader *header, co
 
 			float distance_adv = _get_normal_advance(light_axis);
 
-			int success_count = 0;
-
-			// uint64_t us = OS::get_singleton()->get_ticks_usec();
-
 			for (int i = 0; i < p_leaf_count; i++) {
 
 				uint32_t idx = leaves[i];
@@ -2912,19 +2908,11 @@ void VisualServerScene::_bake_gi_probe_light(const GIProbeDataHeader *header, co
 					light->energy[0] += int32_t(light_r * att * ((cell->albedo >> 16) & 0xFF) / 255.0);
 					light->energy[1] += int32_t(light_g * att * ((cell->albedo >> 8) & 0xFF) / 255.0);
 					light->energy[2] += int32_t(light_b * att * ((cell->albedo) & 0xFF) / 255.0);
-					success_count++;
 				}
 			}
-
-			// print_line("BAKE TIME: " + rtos((OS::get_singleton()->get_ticks_usec() - us) / 1000000.0));
-			// print_line("valid cells: " + itos(success_count));
-
 		} break;
 		case VS::LIGHT_OMNI:
 		case VS::LIGHT_SPOT: {
-
-			// uint64_t us = OS::get_singleton()->get_ticks_usec();
-
 			Vector3 light_pos = light_cache.transform.origin;
 			Vector3 spot_axis = -light_cache.transform.basis.get_axis(2).normalized();
 
@@ -3024,7 +3012,6 @@ void VisualServerScene::_bake_gi_probe_light(const GIProbeDataHeader *header, co
 					light->energy[2] += int32_t(light_b * att * ((cell->albedo) & 0xFF) / 255.0);
 				}
 			}
-			//print_line("BAKE TIME: " + rtos((OS::get_singleton()->get_ticks_usec() - us) / 1000000.0));
 		} break;
 	}
 }

servers/visual/visual_server_viewport.cpp

@@ -111,8 +111,6 @@ void VisualServerViewport::_draw_viewport(Viewport *p_viewport, ARVRInterface::E
 	}
 
 	if (!p_viewport->hide_canvas) {
-		int i = 0;
-
 		Map<Viewport::CanvasKey, Viewport::CanvasData *> canvas_map;
 
 		Rect2 clip_rect(0, 0, p_viewport->size.x, p_viewport->size.y);
@@ -121,8 +119,6 @@ void VisualServerViewport::_draw_viewport(Viewport *p_viewport, ARVRInterface::E
 		RasterizerCanvas::Light *lights_with_mask = NULL;
 		Rect2 shadow_rect;
 
-		int light_count = 0;
-
 		for (Map<RID, Viewport::CanvasData>::Element *E = p_viewport->canvas_map.front(); E; E = E->next()) {
 
 			VisualServerCanvas::Canvas *canvas = static_cast<VisualServerCanvas::Canvas *>(E->get().canvas);
@@ -168,8 +164,6 @@ void VisualServerViewport::_draw_viewport(Viewport *p_viewport, ARVRInterface::E
 							cl->mask_next_ptr = lights_with_mask;
 							lights_with_mask = cl;
 						}
-
-						light_count++;
 					}
 
 					VSG::canvas_render->light_internal_update(cl->light_internal, cl);
@@ -243,7 +237,6 @@ void VisualServerViewport::_draw_viewport(Viewport *p_viewport, ARVRInterface::E
 			}
 
 			VSG::canvas->render_canvas(canvas, xform, canvas_lights, lights_with_mask, clip_rect, canvas_layer_id);
-			i++;
 
 			if (scenario_draw_canvas_bg && E->key().get_layer() >= scenario_canvas_max_layer) {
 				if (!can_draw_3d) {

thirdparty/bullet/BulletSoftBody/btSparseSDF.h

@@ -233,9 +233,9 @@ struct btSparseSdf
 			//int sz = sizeof(Cell);
 			if (ncells > m_clampCells)
 			{
-				static int numResets = 0;
-				numResets++;
-				//				printf("numResets=%d\n",numResets);
+				//static int numResets = 0;
+				//numResets++;
+				//printf("numResets=%d\n",numResets);
 				Reset();
 			}
 

thirdparty/bullet/patches/fix-unused-but-set-warning.patch

@@ -0,0 +1,17 @@
+diff --git a/thirdparty/bullet/BulletSoftBody/btSparseSDF.h b/thirdparty/bullet/BulletSoftBody/btSparseSDF.h
+index ae1288d9e6..243b80f8ae 100644
+--- a/thirdparty/bullet/BulletSoftBody/btSparseSDF.h
++++ b/thirdparty/bullet/BulletSoftBody/btSparseSDF.h
+@@ -233,9 +233,9 @@ struct btSparseSdf
+ 			//int sz = sizeof(Cell);
+ 			if (ncells > m_clampCells)
+ 			{
+-				static int numResets = 0;
+-				numResets++;
+-				//				printf("numResets=%d\n",numResets);
++				//static int numResets = 0;
++				//numResets++;
++				//printf("numResets=%d\n",numResets);
+ 				Reset();
+ 			}
+