Added missing writes to gl_Position in vertex shaders

Some vertex shaders are not writing a value to gl_Position, which can cause
unintended run-time behavior (including termination or system instability).

Components: Vulkan
VK-GL-CTS issue: 1579

Affects:
dEQP-VK.binding_model.descriptorset_random.*
dEQP-VK.memory_model.message_passing.*

Change-Id: I3f2f21f23508bda3062a4480e9fac78748bab32b

diff --git a/external/vulkancts/modules/vulkan/binding_model/vktBindingDescriptorSetRandomTests.cpp b/external/vulkancts/modules/vulkan/binding_model/vktBindingDescriptorSetRandomTests.cpp
index 15e93db..0689313 100644 (file)
--- a/external/vulkancts/modules/vulkan/binding_model/vktBindingDescriptorSetRandomTests.cpp
+++ b/external/vulkancts/modules/vulkan/binding_model/vktBindingDescriptorSetRandomTests.cpp
@@ -700,6 +700,7 @@ void DescriptorSetRandomTestCase::initPrograms (SourceCollections& programCollec
                                "  uvec4 color = (accum != 0) ? uvec4(0,0,0,0) : uvec4(1,0,0,1);\n"
                                "  imageStore(image0_0, ivec2(gl_VertexIndex % " << DIM << ", gl_VertexIndex / " << DIM << "), color);\n"
                                "  gl_PointSize = 1.0f;\n"
+                               "  gl_Position = vec4(0.0f, 0.0f, 0.0f, 1.0f);\n"
                                "}\n";
 
                        programCollection.glslSources.add("test") << glu::VertexSource(vss.str());

diff --git a/external/vulkancts/modules/vulkan/memory_model/vktMemoryModelMessagePassing.cpp b/external/vulkancts/modules/vulkan/memory_model/vktMemoryModelMessagePassing.cpp
index c48728b..6208947 100644 (file)
--- a/external/vulkancts/modules/vulkan/memory_model/vktMemoryModelMessagePassing.cpp
+++ b/external/vulkancts/modules/vulkan/memory_model/vktMemoryModelMessagePassing.cpp
@@ -406,8 +406,9 @@ void MemoryModelTestCase::initPrograms (SourceCollections& programCollection) co
                        "   uint bufferCoord        = gl_VertexIndex;\n"
                        "   uint partnerBufferCoord = subgroupShuffleXor(gl_VertexIndex, gl_SubgroupSize-1);\n"
                        "   ivec2 imageCoord        = ivec2(gl_VertexIndex % (DIM*NUM_WORKGROUP_EACH_DIM), gl_VertexIndex / (DIM*NUM_WORKGROUP_EACH_DIM));\n"
-                       "   ivec2 partnerImageCoord = subgroupShuffleXor(imageCoord, gl_SubgroupSize-1);\n\n"
-                       "   gl_PointSize                        = 1.0f;\n\n";
+                       "   ivec2 partnerImageCoord = subgroupShuffleXor(imageCoord, gl_SubgroupSize-1);\n"
+                       "   gl_PointSize            = 1.0f;\n"
+                       "   gl_Position             = vec4(0.0f, 0.0f, 0.0f, 1.0f);\n\n";
                        break;
                case STAGE_FRAGMENT:
                        css <<
@@ -456,8 +457,9 @@ void MemoryModelTestCase::initPrograms (SourceCollections& programCollection) co
                        "   uint bufferCoord        = globalId.y * DIM*NUM_WORKGROUP_EACH_DIM + globalId.x;\n"
                        "   uint partnerBufferCoord = partnerGlobalId.y * DIM*NUM_WORKGROUP_EACH_DIM + partnerGlobalId.x;\n"
                        "   ivec2 imageCoord        = globalId;\n"
-                       "   ivec2 partnerImageCoord = partnerGlobalId;\n\n"
-                       "   gl_PointSize                        = 1.0f;\n\n";
+                       "   ivec2 partnerImageCoord = partnerGlobalId;\n"
+                       "   gl_PointSize            = 1.0f;\n"
+                       "   gl_Position             = vec4(0.0f, 0.0f, 0.0f, 1.0f);\n\n";
                        break;
                case STAGE_FRAGMENT:
                        css <<