From d91bd8651bd6ee5e9087ebc6558e3446e3e8d270 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Branimir=20Karad=C5=BEi=C4=87?= <branimirkaradzic@gmail.com>
Date: Sat, 5 Mar 2016 10:48:54 -0800
Subject: [PATCH] Upgraded glsl-optimizer.

---
 3rdparty/glsl-optimizer/Changelog.md          |   9 +
 .../src/glsl/glsl_optimizer.cpp               |   6 +-
 .../src/glsl/ir_print_metal_visitor.cpp       |  12 +-
 3rdparty/glsl-optimizer/src/glsl/list.h       |   6 +-
 .../glsl-optimizer/src/glsl/loop_analysis.cpp | 175 +++++++++---------
 .../glsl-optimizer/src/glsl/loop_analysis.h   |   3 +
 .../src/mesa/program/prog_hash_table.c        |   2 +
 .../fragment/array-const-outES3Metal.txt      |   1 +
 .../fragment/array-constconst-outES3Metal.txt |   1 +
 .../tests/fragment/ast-outES3Metal.txt        |   1 +
 ...ug-loop-undeclaredinductor-outES3Metal.txt |   1 +
 .../bug-sampler-highp-outES3Metal.txt         |   1 +
 .../bug-sampler-highpfull-outES3Metal.txt     |   1 +
 .../fragment/builtin-vars-outES3Metal.txt     |   1 +
 .../tests/fragment/fragdepth-outES3Metal.txt  |   1 +
 .../framebuffer_fetch-outES3Metal.txt         |   1 +
 .../fragment/glsl120-basic-outES3Metal.txt    |   1 +
 .../tests/fragment/intrinsics-outES3Metal.txt |   1 +
 .../tests/fragment/loop-for-outES3Metal.txt   |   1 +
 .../loop-forafterdiscard-outES3Metal.txt      |   1 +
 .../matrix-cast-types-outES3Metal.txt         |   1 +
 .../tests/fragment/matrix-ops-outES3Metal.txt |   1 +
 .../fragment/mrt-mixed-array-outES3Metal.txt  |   1 +
 .../tests/fragment/mrt-outES3Metal.txt        |   1 +
 .../tests/fragment/mrt-unused-outES3Metal.txt |   1 +
 ...pt-dead-texloadstreeshadow-outES3Metal.txt |   1 +
 .../opt-grafting-precision-outES3Metal.txt    |   1 +
 .../fragment/prec-expressions-outES3Metal.txt |   1 +
 .../prec-matrix-constr-outES3Metal.txt        |   1 +
 .../qualifiers-layout-outES3Metal.txt         |   1 +
 .../sampler-precision-outES3Metal.txt         |   1 +
 .../tests/fragment/ternary-outES3Metal.txt    |   1 +
 .../fragment/ternary-vec4-outES3Metal.txt     |   1 +
 .../tests/fragment/tex2DArray-outES3Metal.txt |   1 +
 .../tests/fragment/tex2dgrad-outES3Metal.txt  |   1 +
 .../tests/fragment/tex2dlod-outES3Metal.txt   |   1 +
 .../fragment/tex2dshadow-outES3Metal.txt      |   1 +
 .../tests/fragment/tex3D-outES3Metal.txt      |   1 +
 .../fragment/texCubeShadow-outES3Metal.txt    |   1 +
 .../tests/fragment/texOffset-outES3Metal.txt  |   1 +
 .../tests/fragment/texProj-outES3Metal.txt    |   1 +
 .../fragment/z-DirLMBasis-outES3Metal.txt     |   1 +
 .../z-LightShaftsCoord-outES3Metal.txt        |   1 +
 .../fragment/z-alphabumpspec-outES3Metal.txt  |   1 +
 .../fragment/z-collectshadows-outES3Metal.txt |   1 +
 .../fragment/z-fxaa-preset3-outES3Metal.txt   |   1 +
 .../fragment/z-prepasslight-outES3Metal.txt   |   1 +
 .../z-tonemap-usercurve-outES3Metal.txt       |   1 +
 .../fragment/z-treeleafloop-outES3Metal.txt   |   1 +
 .../z-unishader-dirlm-outES3Metal.txt         |   1 +
 .../fragment/z-unity-spot-outES3Metal.txt     |   1 +
 .../zun-MobileBumpSpec-outES3Metal.txt        |   1 +
 .../tests/fragment/zun-SSAO24-outES3Metal.txt |   1 +
 .../tests/glsl_optimizer_tests.cpp            |   5 +-
 .../tests/vertex/MF-GodRays-outES3Metal.txt   |   1 +
 .../bug-swizzle-lhs-cast-outES3Metal.txt      |   1 +
 .../tests/vertex/builtin-vars-outES3Metal.txt |   1 +
 .../tests/vertex/inputs-outES3Metal.txt       |   1 +
 .../vertex/loops-for-withvec4-outES3Metal.txt |   1 +
 ...oops-for-withvec4inductorW-outES3Metal.txt |   1 +
 .../loops-forlimitbreak-outES3Metal.txt       |   1 +
 .../vertex/loops-forvarious-outES3Metal.txt   |   1 +
 .../tests/vertex/matrix-casts-outES3Metal.txt |   1 +
 .../opt-matrix-transpose-mul-outES3Metal.txt  |   1 +
 .../vertex/swizzle-casts-outES3Metal.txt      |   1 +
 .../tests/vertex/types-outES3Metal.txt        |   1 +
 .../vertex/uniforms-arrays-outES3Metal.txt    |   1 +
 ...HybridLightVectorInsertBug-outES3Metal.txt |   1 +
 .../vertex/z-prepasslight-outES3Metal.txt     |   1 +
 .../tests/vertex/z-treeleaf-outES3Metal.txt   |   1 +
 70 files changed, 181 insertions(+), 99 deletions(-)

diff --git a/3rdparty/glsl-optimizer/Changelog.md b/3rdparty/glsl-optimizer/Changelog.md
index ee09e025..39ce18b2 100644
--- a/3rdparty/glsl-optimizer/Changelog.md
+++ b/3rdparty/glsl-optimizer/Changelog.md
@@ -1,6 +1,14 @@
 GLSL optimizer Change Log
 =========================
 
+2016 03
+-------
+
+Fixed:
+
+* Fixed translation performance regression in loop analysis (regressed in 2015 06 fixes).
+
+
 2015 08
 -------
 
@@ -35,6 +43,7 @@ Fixes:
 -------
 
 Goodies:
+
 * GLES2: support EXT_draw_instanced / gl_InstanceIDEXT.
 * Support gl_VertexID in GLSL < 1.30 when EXT_gpu_shader4 is used.
 
diff --git a/3rdparty/glsl-optimizer/src/glsl/glsl_optimizer.cpp b/3rdparty/glsl-optimizer/src/glsl/glsl_optimizer.cpp
index c4e7a03c..e91b86a9 100644
--- a/3rdparty/glsl-optimizer/src/glsl/glsl_optimizer.cpp
+++ b/3rdparty/glsl-optimizer/src/glsl/glsl_optimizer.cpp
@@ -440,8 +440,12 @@ static bool propagate_precision(exec_list* list, bool assign_high_to_undefined)
 static void do_optimization_passes(exec_list* ir, bool linked, _mesa_glsl_parse_state* state, void* mem_ctx)
 {
 	bool progress;
+	// FIXME: Shouldn't need to bound the number of passes
+	int passes = 0,
+		kMaximumPasses = 1000;
 	do {
 		progress = false;
+		++passes;
 		bool progress2;
 		debug_print_ir ("Initial", ir, state, mem_ctx);
 		if (linked) {
@@ -497,7 +501,7 @@ static void do_optimization_passes(exec_list* ir, bool linked, _mesa_glsl_parse_
 			}
 			delete ls;
 		}
-	} while (progress);
+	} while (progress && passes < kMaximumPasses);
 
 	if (!state->metal_target)
 	{
diff --git a/3rdparty/glsl-optimizer/src/glsl/ir_print_metal_visitor.cpp b/3rdparty/glsl-optimizer/src/glsl/ir_print_metal_visitor.cpp
index 9f7071d9..f9988a31 100644
--- a/3rdparty/glsl-optimizer/src/glsl/ir_print_metal_visitor.cpp
+++ b/3rdparty/glsl-optimizer/src/glsl/ir_print_metal_visitor.cpp
@@ -1020,17 +1020,7 @@ void ir_print_metal_visitor::visit(ir_expression *ir)
 			const bool halfCast = (arg_prec == glsl_precision_medium || arg_prec == glsl_precision_low);
 			buffer.asprintf_append (halfCast ? "((half)1.0/(" : "(1.0/(");
 		} else {
-			switch(ir->operation) {
-				case ir_unop_dFdy:
-				case ir_unop_dFdy_coarse:
-				case ir_unop_dFdy_fine:
-					buffer.asprintf_append ("%s(-", operator_glsl_strs[ir->operation]);
-					break;
-
-				default:
-					buffer.asprintf_append ("%s(", operator_glsl_strs[ir->operation]);
-					break;
-			}
+			buffer.asprintf_append ("%s(", operator_glsl_strs[ir->operation]);
 		}
 		if (ir->operands[0])
 			ir->operands[0]->accept(this);
diff --git a/3rdparty/glsl-optimizer/src/glsl/list.h b/3rdparty/glsl-optimizer/src/glsl/list.h
index b6c32bcc..ae0a15ca 100644
--- a/3rdparty/glsl-optimizer/src/glsl/list.h
+++ b/3rdparty/glsl-optimizer/src/glsl/list.h
@@ -163,8 +163,10 @@ exec_node_get_prev(struct exec_node *n)
 static inline void
 exec_node_remove(struct exec_node *n)
 {
-   n->next->prev = n->prev;
-   n->prev->next = n->next;
+   if (n->next)
+      n->next->prev = n->prev;
+   if (n->prev)
+      n->prev->next = n->next;
    n->next = NULL;
    n->prev = NULL;
 }
diff --git a/3rdparty/glsl-optimizer/src/glsl/loop_analysis.cpp b/3rdparty/glsl-optimizer/src/glsl/loop_analysis.cpp
index 240ffc73..b0d3e306 100644
--- a/3rdparty/glsl-optimizer/src/glsl/loop_analysis.cpp
+++ b/3rdparty/glsl-optimizer/src/glsl/loop_analysis.cpp
@@ -25,11 +25,10 @@
 #include "loop_analysis.h"
 #include "ir_hierarchical_visitor.h"
 #include "ir_variable_refcount.h"
+#include "util/hash_table.h"
 
 static bool is_loop_terminator(ir_if *ir);
 
-static bool used_outside_loops(exec_node *head, ir_variable *var, bool first_assignment);
-
 static bool all_expression_operands_are_loop_constant(ir_rvalue *,
 						      hash_table *);
 
@@ -84,6 +83,8 @@ loop_state::loop_state()
             hash_table_pointer_compare);
    this->ht_non_inductors = hash_table_ctor(0, hash_table_pointer_hash,
 										 hash_table_pointer_compare);
+   this->ht_variables = hash_table_ctor(0, hash_table_pointer_hash,
+										 hash_table_pointer_compare);
    this->mem_ctx = ralloc_context(NULL);
    this->loop_found = false;
 }
@@ -94,6 +95,7 @@ loop_state::~loop_state()
    hash_table_dtor(this->ht);
    hash_table_dtor(this->ht_inductors);
    hash_table_dtor(this->ht_non_inductors);
+   hash_table_dtor(this->ht_variables);
    ralloc_free(this->mem_ctx);
 }
 
@@ -122,10 +124,36 @@ loop_state::get_for_inductor(const ir_variable *ir)
    return (loop_variable_state *) hash_table_find(this->ht_inductors, ir);
 }
 
+static void *unreferenced_variable = (void *)1;
+static void *assigned_variable = (void *)2;
+
 void
-loop_state::insert_non_inductor(ir_variable *var)
+loop_state::insert_variable(ir_variable *var)
 {
-	// key doesn't matter, just needs to be non-NULL
+	// data starts as 1. If an assignment is seen, it's replaced with 2.
+	// this way we can mark a variable as a non-inductor if it's referenced
+	// other than the first assignment
+	hash_table_insert(this->ht_variables, unreferenced_variable, var);
+}
+
+void
+loop_state::reference_variable(ir_variable *var, bool assignment)
+{
+	void *ref = hash_table_find(this->ht_variables, var);
+
+	// variable declaration was not seen or already discarded, just ignore
+	if (ref == NULL)
+		return;
+
+	if (ref == unreferenced_variable && assignment)
+	{
+		hash_table_replace(this->ht_variables, assigned_variable, var);
+		return;
+	}
+
+	// variable is referenced and not just in an initial assignment,
+	// so it cannot be an inductor
+	hash_table_remove(this->ht_variables, var);
 	hash_table_insert(this->ht_non_inductors, this, var);
 }
 
@@ -266,10 +294,14 @@ public:
    virtual ir_visitor_status visit_enter(ir_if *);
    virtual ir_visitor_status visit_leave(ir_if *);
 
+   void visit_general(ir_instruction *);
+
    loop_state *loops;
 
    int if_statement_depth;
 
+   bool first_pass;
+
    ir_assignment *current_assignment;
 
    exec_list state;
@@ -277,10 +309,17 @@ public:
 
 } /* anonymous namespace */
 
+void loop_enter_callback(class ir_instruction *ir, void *data)
+{
+   ((loop_analysis *)data)->visit_general(ir);
+}
+
 loop_analysis::loop_analysis(loop_state *loops)
-   : loops(loops), if_statement_depth(0), current_assignment(NULL)
+   : loops(loops), if_statement_depth(0), current_assignment(NULL), first_pass(false)
 {
    /* empty */
+   data_enter = this;
+   callback_enter = &loop_enter_callback;
 }
 
 
@@ -308,16 +347,11 @@ loop_analysis::visit(ir_variable *var)
 	if (!this->state.is_empty())
 		return visit_continue;
 
-	// Check if this variable is used outside a loop anywhere. If it is, it can't be a
-	// variable that's private to the loop, so can't be an inductor.
-	// This doesn't reject all possible non-inductors, notably anything declared in an
-	// outer loop that isn't an inductor in an inner loop, but it can eliminate some
-	// problem cases
-	if (used_outside_loops(var->next, var, false))
-	{
-		// add to list of "non inductors"
-		loops->insert_non_inductor(var);
-	}
+	// In the first pass over the instructions we look at variables declared and
+	// examine their references to determine if they can be an inductor or not
+	// for the second pass
+	if (this->first_pass)
+		loops->insert_variable(var);
 
 	return visit_continue;
 }
@@ -339,10 +373,15 @@ loop_analysis::visit_enter(ir_call *)
 ir_visitor_status
 loop_analysis::visit(ir_dereference_variable *ir)
 {
-   /* If we're not somewhere inside a loop, there's nothing to do.
+   /* If we're not somewhere inside a loop, just check for
+    * non-inductors
     */
-   if (this->state.is_empty())
+   if (this->state.is_empty() || this->first_pass)
+   {
+      if (this->state.is_empty() && this->first_pass)
+         loops->reference_variable(ir->variable_referenced(), this->in_assignee);
       return visit_continue;
+   }
 
    bool nested = false;
 
@@ -382,8 +421,11 @@ loop_analysis::visit_leave(ir_loop *ir)
     * We could perform some conservative analysis (prove there's no statically
     * possible assignment, etc.) but it isn't worth it for now; function
     * inlining will allow us to unroll loops anyway.
+    *
+    * We also skip doing any work in the first pass, where we are just identifying
+    * variables that cannot be inductors.
     */
-   if (ls->contains_calls)
+   if (ls->contains_calls || this->first_pass)
       return visit_continue;
 
    foreach_in_list(ir_instruction, node, &ir->body_instructions) {
@@ -591,7 +633,7 @@ loop_analysis::visit_enter(ir_assignment *ir)
    /* If we're not somewhere inside a loop, there's nothing to do.
     */
    if (this->state.is_empty())
-      return visit_continue_with_parent;
+      return visit_continue;
 
    this->current_assignment = ir;
 
@@ -601,10 +643,8 @@ loop_analysis::visit_enter(ir_assignment *ir)
 ir_visitor_status
 loop_analysis::visit_leave(ir_assignment *ir)
 {
-   /* Since the visit_enter exits with visit_continue_with_parent for this
-    * case, the loop state stack should never be empty here.
-    */
-   assert(!this->state.is_empty());
+   if (this->state.is_empty())
+      return visit_continue;
 
    assert(this->current_assignment == ir);
    this->current_assignment = NULL;
@@ -612,6 +652,24 @@ loop_analysis::visit_leave(ir_assignment *ir)
    return visit_continue;
 }
 
+void
+loop_analysis::visit_general(ir_instruction *ir)
+{
+   /* If we're inside a loop, we can't start marking things as non-inductors
+    * Likewise in the second pass we've done all this work, so return early
+    */
+   if (!this->state.is_empty() || !this->first_pass)
+      return;
+
+   ir_variable_refcount_visitor refs;
+   ir->accept (&refs);
+
+   struct hash_entry *referenced_var;
+   hash_table_foreach (refs.ht, referenced_var) {
+      ir_variable *var = (ir_variable *)referenced_var->key;
+      loops->reference_variable(var, false);
+   }
+}
 
 class examine_rhs : public ir_hierarchical_visitor {
 public:
@@ -733,72 +791,23 @@ is_loop_terminator(ir_if *ir)
    return true;
 }
 
-
-bool
-used_outside_loops(exec_node *head, ir_variable *var, bool first_assignment)
-{
-	ir_variable_refcount_visitor refs;
-	for (exec_node* node = head;
-		 !node->is_tail_sentinel();
-		 node = node->next)
-	{
-		ir_instruction *ir = (ir_instruction *) node;
-		if (ir->ir_type == ir_type_variable)
-			continue;
-
-		// ignore the first assignment
-		if (!first_assignment && ir->ir_type == ir_type_assignment)
-		{
-			ir_assignment *assign = ir->as_assignment();
-			ir_variable *assignee = assign->lhs->whole_variable_referenced();
-
-			if(assignee == var)
-			{
-				first_assignment = true;
-				continue;
-			}
-		}
-
-		// we don't want to recurse into loops
-		if (ir->ir_type == ir_type_loop)
-			continue;
-
-		// recurse only for if statements, the other case we would need to recurse is
-		// loops, but we are looking for uses outside of loops.
-		if (ir->ir_type == ir_type_if)
-		{
-			ir_if *irif = ir->as_if();
-			if (used_outside_loops(irif->then_instructions.head, var, first_assignment))
-				return true;
-			if (used_outside_loops(irif->else_instructions.head, var, first_assignment))
-				return true;
-
-			// if we didn't find in each branch with our recursion, skip
-			// otherwise the accept (&refs) below will recurse into loops
-			// and may give a false positive.
-			continue;
-		}
-
-		// we know that we're not inside a loop as we haven't recursed inside,
-		// and we started outside of a loop, so any references to this variable
-		// mean it is used outside of any loops
-		ir->accept (&refs);
-		if (refs.find_variable_entry(var))
-		{
-			return true;
-		}
-	}
-
-	return false;
-}
-
-
 loop_state *
 analyze_loop_variables(exec_list *instructions)
 {
    loop_state *loops = new loop_state;
    loop_analysis v(loops);
 
+   /* Do two passes over the instructions. The first pass builds a view
+    * of the variables declared and whether or not they're used outside
+    * of loops (if so, they cannot be inductors).
+    *
+    * In the second pass we apply this information to do the loop analysis
+    * itself.
+    */
+   v.first_pass = true;
    v.run(instructions);
+   v.first_pass = false;
+   v.run(instructions);
+
    return v.loops;
 }
diff --git a/3rdparty/glsl-optimizer/src/glsl/loop_analysis.h b/3rdparty/glsl-optimizer/src/glsl/loop_analysis.h
index 299dbcfc..3b6b2d01 100644
--- a/3rdparty/glsl-optimizer/src/glsl/loop_analysis.h
+++ b/3rdparty/glsl-optimizer/src/glsl/loop_analysis.h
@@ -251,6 +251,8 @@ public:
    loop_variable_state* get_for_inductor (const ir_variable*);
    bool insert_inductor(loop_variable* loopvar, loop_variable_state* state, ir_loop* loop);
    void insert_non_inductor(ir_variable *var);
+   void insert_variable(ir_variable *var);
+   void reference_variable(ir_variable *var, bool assignment);
 
    bool loop_found;
 
@@ -267,6 +269,7 @@ private:
     */
    hash_table *ht_inductors;
    hash_table *ht_non_inductors;
+   hash_table *ht_variables;
  
 
    void *mem_ctx;
diff --git a/3rdparty/glsl-optimizer/src/mesa/program/prog_hash_table.c b/3rdparty/glsl-optimizer/src/mesa/program/prog_hash_table.c
index 3b2152b6..680699b5 100644
--- a/3rdparty/glsl-optimizer/src/mesa/program/prog_hash_table.c
+++ b/3rdparty/glsl-optimizer/src/mesa/program/prog_hash_table.c
@@ -84,6 +84,8 @@ hash_table_ctor(unsigned num_buckets, hash_func_t hash,
 void
 hash_table_dtor(struct hash_table *ht)
 {
+   if (!ht)
+      return;
    hash_table_clear(ht);
    free(ht);
 }
diff --git a/3rdparty/glsl-optimizer/tests/fragment/array-const-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/array-const-outES3Metal.txt
index cb270ab7..3021d1f2 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/array-const-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/array-const-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
 };
diff --git a/3rdparty/glsl-optimizer/tests/fragment/array-constconst-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/array-constconst-outES3Metal.txt
index cb270ab7..3021d1f2 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/array-constconst-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/array-constconst-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
 };
diff --git a/3rdparty/glsl-optimizer/tests/fragment/ast-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/ast-outES3Metal.txt
index 0069dadf..4bd58f32 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/ast-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/ast-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float4 gl_FragCoord [[position]];
diff --git a/3rdparty/glsl-optimizer/tests/fragment/bug-loop-undeclaredinductor-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/bug-loop-undeclaredinductor-outES3Metal.txt
index 79614415..c794c125 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/bug-loop-undeclaredinductor-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/bug-loop-undeclaredinductor-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   half2 xlv_TEXCOORD0;
diff --git a/3rdparty/glsl-optimizer/tests/fragment/bug-sampler-highp-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/bug-sampler-highp-outES3Metal.txt
index 993c7370..424ef016 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/bug-sampler-highp-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/bug-sampler-highp-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float2 varUV;
diff --git a/3rdparty/glsl-optimizer/tests/fragment/bug-sampler-highpfull-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/bug-sampler-highpfull-outES3Metal.txt
index 504f13c2..f6753627 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/bug-sampler-highpfull-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/bug-sampler-highpfull-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 constant float2 _xlat_mtl_const1[12] = {float2(-0.326212, -0.40581), float2(-0.840144, -0.07358), float2(-0.695914, 0.457137), float2(-0.203345, 0.620716), float2(0.96234, -0.194983), float2(0.473434, -0.480026), float2(0.519456, 0.767022), float2(0.185461, -0.893124), float2(0.507431, 0.064425), float2(0.89642, 0.412458), float2(-0.32194, -0.932615), float2(-0.791559, -0.59771)};
 struct xlatMtlShaderInput {
diff --git a/3rdparty/glsl-optimizer/tests/fragment/builtin-vars-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/builtin-vars-outES3Metal.txt
index c9a6e790..82058c23 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/builtin-vars-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/builtin-vars-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float2 gl_PointCoord [[point_coord]];
diff --git a/3rdparty/glsl-optimizer/tests/fragment/fragdepth-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/fragdepth-outES3Metal.txt
index 4e428db7..b3ab3030 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/fragdepth-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/fragdepth-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
 };
diff --git a/3rdparty/glsl-optimizer/tests/fragment/framebuffer_fetch-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/framebuffer_fetch-outES3Metal.txt
index 1d924da0..c2470caf 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/framebuffer_fetch-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/framebuffer_fetch-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   half4 xlv_TEXCOORD0;
diff --git a/3rdparty/glsl-optimizer/tests/fragment/glsl120-basic-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/glsl120-basic-outES3Metal.txt
index 94760a64..4f5521cd 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/glsl120-basic-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/glsl120-basic-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
 };
diff --git a/3rdparty/glsl-optimizer/tests/fragment/intrinsics-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/intrinsics-outES3Metal.txt
index ef6d9b45..223b512f 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/intrinsics-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/intrinsics-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float4 xlv_TEXCOORD0;
diff --git a/3rdparty/glsl-optimizer/tests/fragment/loop-for-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/loop-for-outES3Metal.txt
index 00177859..87ded88a 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/loop-for-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/loop-for-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float2 xlv_uv;
diff --git a/3rdparty/glsl-optimizer/tests/fragment/loop-forafterdiscard-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/loop-forafterdiscard-outES3Metal.txt
index 171650fb..562cb9ac 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/loop-forafterdiscard-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/loop-forafterdiscard-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float2 xlv_uv;
diff --git a/3rdparty/glsl-optimizer/tests/fragment/matrix-cast-types-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/matrix-cast-types-outES3Metal.txt
index bb6013bd..f0df5674 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/matrix-cast-types-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/matrix-cast-types-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 inline float4x4 _xlcast_float4x4(half4x4 v) { return float4x4(float4(v[0]), float4(v[1]), float4(v[2]), float4(v[3])); }
 inline float3x3 _xlcast_float3x3(half3x3 v) { return float3x3(float3(v[0]), float3(v[1]), float3(v[2])); }
diff --git a/3rdparty/glsl-optimizer/tests/fragment/matrix-ops-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/matrix-ops-outES3Metal.txt
index 458ecd3d..1fbb32d9 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/matrix-ops-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/matrix-ops-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 inline float4x4 _xlinit_float4x4(float v) { return float4x4(float4(v), float4(v), float4(v), float4(v)); }
 inline float3x3 _xlinit_float3x3(float v) { return float3x3(float3(v), float3(v), float3(v)); }
diff --git a/3rdparty/glsl-optimizer/tests/fragment/mrt-mixed-array-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/mrt-mixed-array-outES3Metal.txt
index 3e3ab125..4c9c30d5 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/mrt-mixed-array-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/mrt-mixed-array-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
 };
diff --git a/3rdparty/glsl-optimizer/tests/fragment/mrt-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/mrt-outES3Metal.txt
index fed2b03d..e4b3f820 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/mrt-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/mrt-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
 };
diff --git a/3rdparty/glsl-optimizer/tests/fragment/mrt-unused-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/mrt-unused-outES3Metal.txt
index 1f1a28a9..a39c1b7d 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/mrt-unused-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/mrt-unused-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   half4 xlv_COLOR0;
diff --git a/3rdparty/glsl-optimizer/tests/fragment/opt-dead-texloadstreeshadow-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/opt-dead-texloadstreeshadow-outES3Metal.txt
index 31df0dfe..369965c5 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/opt-dead-texloadstreeshadow-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/opt-dead-texloadstreeshadow-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
 };
diff --git a/3rdparty/glsl-optimizer/tests/fragment/opt-grafting-precision-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/opt-grafting-precision-outES3Metal.txt
index 5c809e60..0d959ebe 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/opt-grafting-precision-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/opt-grafting-precision-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   half3 normal;
diff --git a/3rdparty/glsl-optimizer/tests/fragment/prec-expressions-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/prec-expressions-outES3Metal.txt
index ddfda4d4..eb189493 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/prec-expressions-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/prec-expressions-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
 };
diff --git a/3rdparty/glsl-optimizer/tests/fragment/prec-matrix-constr-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/prec-matrix-constr-outES3Metal.txt
index 80891a9b..3462062a 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/prec-matrix-constr-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/prec-matrix-constr-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   half3 inNormal;
diff --git a/3rdparty/glsl-optimizer/tests/fragment/qualifiers-layout-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/qualifiers-layout-outES3Metal.txt
index 64f92a1e..5edc1f20 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/qualifiers-layout-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/qualifiers-layout-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
 };
diff --git a/3rdparty/glsl-optimizer/tests/fragment/sampler-precision-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/sampler-precision-outES3Metal.txt
index 7d8a5f94..82d78249 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/sampler-precision-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/sampler-precision-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float4 varUV;
diff --git a/3rdparty/glsl-optimizer/tests/fragment/ternary-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/ternary-outES3Metal.txt
index aff9cd48..ca234064 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/ternary-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/ternary-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float4 xlv_TEXCOORD0;
diff --git a/3rdparty/glsl-optimizer/tests/fragment/ternary-vec4-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/ternary-vec4-outES3Metal.txt
index 314f5f7c..4471023a 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/ternary-vec4-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/ternary-vec4-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float4 xlv_TEXCOORD0;
diff --git a/3rdparty/glsl-optimizer/tests/fragment/tex2DArray-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/tex2DArray-outES3Metal.txt
index f74638ff..606d3bb3 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/tex2DArray-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/tex2DArray-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float4 uv;
diff --git a/3rdparty/glsl-optimizer/tests/fragment/tex2dgrad-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/tex2dgrad-outES3Metal.txt
index 3c81d626..a070be52 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/tex2dgrad-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/tex2dgrad-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   half3 uv1;
diff --git a/3rdparty/glsl-optimizer/tests/fragment/tex2dlod-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/tex2dlod-outES3Metal.txt
index bbe17239..e8f1746e 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/tex2dlod-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/tex2dlod-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float4 uvHi;
diff --git a/3rdparty/glsl-optimizer/tests/fragment/tex2dshadow-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/tex2dshadow-outES3Metal.txt
index 2d85a7fc..3171b51a 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/tex2dshadow-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/tex2dshadow-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 constexpr sampler _mtl_xl_shadow_sampler(address::clamp_to_edge, filter::linear, compare_func::less);
 struct xlatMtlShaderInput {
diff --git a/3rdparty/glsl-optimizer/tests/fragment/tex3D-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/tex3D-outES3Metal.txt
index 59999473..91d9515c 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/tex3D-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/tex3D-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float3 uv;
diff --git a/3rdparty/glsl-optimizer/tests/fragment/texCubeShadow-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/texCubeShadow-outES3Metal.txt
index 68ec1601..e98663c9 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/texCubeShadow-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/texCubeShadow-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 constexpr sampler _mtl_xl_shadow_sampler(address::clamp_to_edge, filter::linear, compare_func::less);
 struct xlatMtlShaderInput {
diff --git a/3rdparty/glsl-optimizer/tests/fragment/texOffset-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/texOffset-outES3Metal.txt
index 2a1b68ce..282db076 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/texOffset-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/texOffset-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   half3 uv;
diff --git a/3rdparty/glsl-optimizer/tests/fragment/texProj-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/texProj-outES3Metal.txt
index 961349b0..454f4127 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/texProj-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/texProj-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 constexpr sampler _mtl_xl_shadow_sampler(address::clamp_to_edge, filter::linear, compare_func::less);
 struct xlatMtlShaderInput {
diff --git a/3rdparty/glsl-optimizer/tests/fragment/z-DirLMBasis-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/z-DirLMBasis-outES3Metal.txt
index 88dbe7f7..2fefeb70 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/z-DirLMBasis-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/z-DirLMBasis-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float2 xlv_TEXCOORD0;
diff --git a/3rdparty/glsl-optimizer/tests/fragment/z-LightShaftsCoord-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/z-LightShaftsCoord-outES3Metal.txt
index 1ae45cf3..a336ad7a 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/z-LightShaftsCoord-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/z-LightShaftsCoord-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float2 xlv_TEXCOORD0;
diff --git a/3rdparty/glsl-optimizer/tests/fragment/z-alphabumpspec-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/z-alphabumpspec-outES3Metal.txt
index 40f554b1..46530468 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/z-alphabumpspec-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/z-alphabumpspec-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float4 _uv0;
diff --git a/3rdparty/glsl-optimizer/tests/fragment/z-collectshadows-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/z-collectshadows-outES3Metal.txt
index 39ecc369..1d2fdeae 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/z-collectshadows-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/z-collectshadows-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float2 xlv_TEXCOORD0;
diff --git a/3rdparty/glsl-optimizer/tests/fragment/z-fxaa-preset3-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/z-fxaa-preset3-outES3Metal.txt
index 852c4e0d..6fa4138a 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/z-fxaa-preset3-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/z-fxaa-preset3-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float2 xlv_TEXCOORD0;
diff --git a/3rdparty/glsl-optimizer/tests/fragment/z-prepasslight-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/z-prepasslight-outES3Metal.txt
index 1e43ec7a..57b1c341 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/z-prepasslight-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/z-prepasslight-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float4 xlv_TEXCOORD0;
diff --git a/3rdparty/glsl-optimizer/tests/fragment/z-tonemap-usercurve-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/z-tonemap-usercurve-outES3Metal.txt
index ccff9b03..97b273a9 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/z-tonemap-usercurve-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/z-tonemap-usercurve-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float2 xlv_TEXCOORD0;
diff --git a/3rdparty/glsl-optimizer/tests/fragment/z-treeleafloop-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/z-treeleafloop-outES3Metal.txt
index bbec809e..4a8dc6d4 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/z-treeleafloop-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/z-treeleafloop-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float2 xlv_TEXCOORD0;
diff --git a/3rdparty/glsl-optimizer/tests/fragment/z-unishader-dirlm-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/z-unishader-dirlm-outES3Metal.txt
index 86355a1c..0984cae0 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/z-unishader-dirlm-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/z-unishader-dirlm-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float4 xlv_TEXCOORD0;
diff --git a/3rdparty/glsl-optimizer/tests/fragment/z-unity-spot-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/z-unity-spot-outES3Metal.txt
index a488e9fe..5a77ed42 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/z-unity-spot-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/z-unity-spot-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float2 xlv_TEXCOORD0;
diff --git a/3rdparty/glsl-optimizer/tests/fragment/zun-MobileBumpSpec-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/zun-MobileBumpSpec-outES3Metal.txt
index 469afd23..4743f651 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/zun-MobileBumpSpec-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/zun-MobileBumpSpec-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   half2 xlv_TEXCOORD0;
diff --git a/3rdparty/glsl-optimizer/tests/fragment/zun-SSAO24-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/fragment/zun-SSAO24-outES3Metal.txt
index de7007b9..3e2c3d4f 100644
--- a/3rdparty/glsl-optimizer/tests/fragment/zun-SSAO24-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/fragment/zun-SSAO24-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 constant float3 _xlat_mtl_const1[8] = {float3(0.0130572, 0.587232, -0.119337), float3(0.323078, 0.0220727, -0.418873), float3(-0.310725, -0.191367, 0.0561369), float3(-0.479646, 0.0939877, -0.580265), float3(0.139999, -0.33577, 0.559679), float3(-0.248458, 0.255532, 0.348944), float3(0.18719, -0.702764, -0.231748), float3(0.884915, 0.284208, 0.368524)};
 struct xlatMtlShaderInput {
diff --git a/3rdparty/glsl-optimizer/tests/glsl_optimizer_tests.cpp b/3rdparty/glsl-optimizer/tests/glsl_optimizer_tests.cpp
index ddca5d1f..caf87f26 100644
--- a/3rdparty/glsl-optimizer/tests/glsl_optimizer_tests.cpp
+++ b/3rdparty/glsl-optimizer/tests/glsl_optimizer_tests.cpp
@@ -315,9 +315,9 @@ static bool CheckGLSL (bool vertex, bool gles, const std::string& testName, cons
 
 static bool CheckMetal (bool vertex, bool gles, const std::string& testName, const char* prefix, const std::string& source)
 {
-#if !GOT_GFX
+#if !GOT_GFX || !defined(__APPLE__)
 	return true; // just assume it's ok
-#endif
+#else
 	
 	FILE* f = fopen ("metalTemp.metal", "wb");
 	fwrite (source.c_str(), source.size(), 1, f);
@@ -333,6 +333,7 @@ static bool CheckMetal (bool vertex, bool gles, const std::string& testName, con
 #endif //
 
 	return true;
+#endif
 }
 
 
diff --git a/3rdparty/glsl-optimizer/tests/vertex/MF-GodRays-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/vertex/MF-GodRays-outES3Metal.txt
index 36efe5b0..c52c31b9 100644
--- a/3rdparty/glsl-optimizer/tests/vertex/MF-GodRays-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/vertex/MF-GodRays-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float4 _inVertex [[attribute(0)]];
diff --git a/3rdparty/glsl-optimizer/tests/vertex/bug-swizzle-lhs-cast-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/vertex/bug-swizzle-lhs-cast-outES3Metal.txt
index d2b15808..1da74693 100644
--- a/3rdparty/glsl-optimizer/tests/vertex/bug-swizzle-lhs-cast-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/vertex/bug-swizzle-lhs-cast-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float4 _glesVertex [[attribute(0)]];
diff --git a/3rdparty/glsl-optimizer/tests/vertex/builtin-vars-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/vertex/builtin-vars-outES3Metal.txt
index 3c5b6e33..8d3e95e4 100644
--- a/3rdparty/glsl-optimizer/tests/vertex/builtin-vars-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/vertex/builtin-vars-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float3 _inPos [[attribute(0)]];
diff --git a/3rdparty/glsl-optimizer/tests/vertex/inputs-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/vertex/inputs-outES3Metal.txt
index 69cc59a3..f896ff66 100644
--- a/3rdparty/glsl-optimizer/tests/vertex/inputs-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/vertex/inputs-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float4 _glesVertex [[attribute(0)]];
diff --git a/3rdparty/glsl-optimizer/tests/vertex/loops-for-withvec4-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/vertex/loops-for-withvec4-outES3Metal.txt
index 8976a675..fc95a3de 100644
--- a/3rdparty/glsl-optimizer/tests/vertex/loops-for-withvec4-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/vertex/loops-for-withvec4-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float4 dcl_Input0_POSITION0 [[attribute(0)]];
diff --git a/3rdparty/glsl-optimizer/tests/vertex/loops-for-withvec4inductorW-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/vertex/loops-for-withvec4inductorW-outES3Metal.txt
index a6e6c9b7..00690e14 100644
--- a/3rdparty/glsl-optimizer/tests/vertex/loops-for-withvec4inductorW-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/vertex/loops-for-withvec4inductorW-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float4 in_POSITION0 [[attribute(0)]];
diff --git a/3rdparty/glsl-optimizer/tests/vertex/loops-forlimitbreak-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/vertex/loops-forlimitbreak-outES3Metal.txt
index 4fff005a..097f161d 100644
--- a/3rdparty/glsl-optimizer/tests/vertex/loops-forlimitbreak-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/vertex/loops-forlimitbreak-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float4 _glesVertex [[attribute(0)]];
diff --git a/3rdparty/glsl-optimizer/tests/vertex/loops-forvarious-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/vertex/loops-forvarious-outES3Metal.txt
index 6e94ee11..a87dcb78 100644
--- a/3rdparty/glsl-optimizer/tests/vertex/loops-forvarious-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/vertex/loops-forvarious-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float4 _inVertex [[attribute(0)]];
diff --git a/3rdparty/glsl-optimizer/tests/vertex/matrix-casts-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/vertex/matrix-casts-outES3Metal.txt
index 8e8bf350..b888c4c9 100644
--- a/3rdparty/glsl-optimizer/tests/vertex/matrix-casts-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/vertex/matrix-casts-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 inline float4x4 _xlcast_float4x4(half4x4 v) { return float4x4(float4(v[0]), float4(v[1]), float4(v[2]), float4(v[3])); }
 inline float3x3 _xlcast_float3x3(half3x3 v) { return float3x3(float3(v[0]), float3(v[1]), float3(v[2])); }
diff --git a/3rdparty/glsl-optimizer/tests/vertex/opt-matrix-transpose-mul-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/vertex/opt-matrix-transpose-mul-outES3Metal.txt
index 98b2075b..78a49f1c 100644
--- a/3rdparty/glsl-optimizer/tests/vertex/opt-matrix-transpose-mul-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/vertex/opt-matrix-transpose-mul-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float4 attrVertex [[attribute(0)]];
diff --git a/3rdparty/glsl-optimizer/tests/vertex/swizzle-casts-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/vertex/swizzle-casts-outES3Metal.txt
index b657adeb..0667465c 100644
--- a/3rdparty/glsl-optimizer/tests/vertex/swizzle-casts-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/vertex/swizzle-casts-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float4 _glesVertex [[attribute(0)]];
diff --git a/3rdparty/glsl-optimizer/tests/vertex/types-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/vertex/types-outES3Metal.txt
index 40a4d863..310cef2d 100644
--- a/3rdparty/glsl-optimizer/tests/vertex/types-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/vertex/types-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float4 _inVertex [[attribute(0)]];
diff --git a/3rdparty/glsl-optimizer/tests/vertex/uniforms-arrays-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/vertex/uniforms-arrays-outES3Metal.txt
index 979ea561..c6557d37 100644
--- a/3rdparty/glsl-optimizer/tests/vertex/uniforms-arrays-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/vertex/uniforms-arrays-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float4 _glesVertex [[attribute(0)]];
diff --git a/3rdparty/glsl-optimizer/tests/vertex/z-NichsHybridLightVectorInsertBug-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/vertex/z-NichsHybridLightVectorInsertBug-outES3Metal.txt
index a56f7df0..680204bd 100644
--- a/3rdparty/glsl-optimizer/tests/vertex/z-NichsHybridLightVectorInsertBug-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/vertex/z-NichsHybridLightVectorInsertBug-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float4 _glesVertex [[attribute(0)]];
diff --git a/3rdparty/glsl-optimizer/tests/vertex/z-prepasslight-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/vertex/z-prepasslight-outES3Metal.txt
index a6f6f5c0..36a8c79b 100644
--- a/3rdparty/glsl-optimizer/tests/vertex/z-prepasslight-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/vertex/z-prepasslight-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float4 _vertex [[attribute(0)]];
diff --git a/3rdparty/glsl-optimizer/tests/vertex/z-treeleaf-outES3Metal.txt b/3rdparty/glsl-optimizer/tests/vertex/z-treeleaf-outES3Metal.txt
index f825c2f8..3d9bc6f8 100644
--- a/3rdparty/glsl-optimizer/tests/vertex/z-treeleaf-outES3Metal.txt
+++ b/3rdparty/glsl-optimizer/tests/vertex/z-treeleaf-outES3Metal.txt
@@ -1,4 +1,5 @@
 #include <metal_stdlib>
+#pragma clang diagnostic ignored "-Wparentheses-equality"
 using namespace metal;
 struct xlatMtlShaderInput {
   float4 _inVertex [[attribute(0)]];