Roll ANGLE from 094b49d to 32175d

Author: loic-sharma

DEPS

@@ -263,7 +263,7 @@ deps = {
    Var('github_git') + '/google/shaderc.git' + '@' + '7ea834ecc59258a5c13c3d3e6fa0582bdde7c543',
 
   'src/third_party/vulkan-deps':
-   Var('chromium_git') + '/vulkan-deps' + '@' + 'afc444a0f49a09f67b3dc63ddcd14e2031466ffa',
+   Var('chromium_git') + '/vulkan-deps' + '@' + 'a56166d59ebdb0208a7301d267460773df1a1adc',
 
   'src/third_party/flatbuffers':
    Var('github_git') + '/google/flatbuffers.git' + '@' + '0a80646371179f8a7a5c1f42c31ee1d44dcf6709',
@@ -592,10 +592,10 @@ deps = {
    Var('fuchsia_git') + '/third_party/Vulkan-Headers.git' + '@' + '32640ad82ef648768c706c9bf828b77123a09bc2',
 
    'src/third_party/swiftshader':
-   Var('swiftshader_git') + '/SwiftShader.git' + '@' + 'bea8d2471bd912220ba59032e0738f3364632657',
+   Var('swiftshader_git') + '/SwiftShader.git' + '@' + '5f9ed9b16931c7155171d31f75004f73f0a3abc8',
 
    'src/third_party/angle':
-   Var('chromium_git') + '/angle/angle.git' + '@' + '094b49db60cb48ee932a875898b57accbfa656de',
+   Var('chromium_git') + '/angle/angle.git' + '@' + '32175d8a6dc185dd850e5c9988f208085c9c0d80',
 
    'src/third_party/vulkan_memory_allocator':
    Var('chromium_git') + '/external/github.com/GPUOpen-LibrariesAndSDKs/VulkanMemoryAllocator' + '@' + '7de5cc00de50e71a3aab22dea52fbb7ff4efceb6',

impeller/compiler/spirv_sksl.cc

@@ -327,6 +327,30 @@ bool CompilerSkSL::emit_global_variable_resources() {
   return emitted;
 }
 
+bool CompilerSkSL::emit_undefined_values() {
+  bool emitted = false;
+
+  ir.for_each_typed_id<SPIRUndef>([&](uint32_t, const SPIRUndef& undef) {
+    auto& type = this->get<SPIRType>(undef.basetype);
+    // OpUndef can be void for some reason ...
+    if (type.basetype == SPIRType::Void) {
+      return;
+    }
+
+    std::string initializer;
+    if (options.force_zero_initialized_variables &&
+        type_can_zero_initialize(type)) {
+      initializer = join(" = ", to_zero_initialized_expression(undef.basetype));
+    }
+
+    statement(variable_decl(type, to_name(undef.self), undef.self), initializer,
+              ";");
+    emitted = true;
+  });
+
+  return emitted;
+}
+
 void CompilerSkSL::emit_resources() {
   detect_unsupported_resources();
 
@@ -350,7 +374,9 @@ void CompilerSkSL::emit_resources() {
     statement("");
   }
 
-  declare_undefined_values();
+  if (emit_undefined_values()) {
+    statement("");
+  }
 }
 
 void CompilerSkSL::emit_interface_block(const SPIRVariable& var) {

impeller/compiler/spirv_sksl.h

@@ -46,6 +46,7 @@ class CompilerSkSL : public spirv_cross::CompilerGLSL {
   bool emit_uniform_resources();
   bool emit_output_resources();
   bool emit_global_variable_resources();
+  bool emit_undefined_values();
   void emit_resources();
 
   void emit_interface_block(const spirv_cross::SPIRVariable& var);