[spv, qcom] Ensuring SPV 1.3

src/video_core/vulkan_common/vulkan_device.cpp

@@ -1076,11 +1076,12 @@ bool Device::GetSuitability(bool requires_swapchain) {
     // Vulkan 1.2 and 1.3 features
     if (instance_version >= VK_API_VERSION_1_2) {
         features_1_2.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_2_FEATURES;
-        features_1_3.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_3_FEATURES;
+        SetNext(next, features_1_2);
 
-        features_1_2.pNext = &features_1_3;
-
-        *next = &features_1_2;
+        if (instance_version >= VK_API_VERSION_1_3) {
+            features_1_3.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_3_FEATURES;
+            SetNext(next, features_1_3);
+        }
     }
 
 // Test all features we know about. If the feature is not available in core at our

src/video_core/vulkan_common/vulkan_device.h

@@ -771,10 +771,11 @@ public:
 
     /// Returns the minimum supported version of SPIR-V.
     u32 SupportedSpirvVersion() const {
-        if (instance_version >= VK_API_VERSION_1_3) {
+        const bool has_float_controls = extensions.shader_float_controls;
+        if (instance_version >= VK_API_VERSION_1_3 && has_float_controls) {
             return 0x00010600U;
         }
-        if (extensions.spirv_1_4) {
+        if (extensions.spirv_1_4 && has_float_controls) {
             return 0x00010400U;
         }
         return 0x00010300U;