Non-functional: Make the vulkan version number meaning be only 0 or not 0.

glslang/MachineIndependent/Initialize.cpp

@@ -3195,7 +3195,7 @@ void TBuiltIns::initialize(int version, EProfile profile, const SpvVersion& spvV
     }
 
     // GL_AMD_shader_fragment_mask
-    if (profile != EEsProfile && version >= 450 && spvVersion.vulkan >= 100) {
+    if (profile != EEsProfile && version >= 450 && spvVersion.vulkan > 0) {
         stageBuiltins[EShLangFragment].append(
             "uint fragmentMaskFetchAMD(subpassInputMS);"
             "uint fragmentMaskFetchAMD(isubpassInputMS);"
@@ -3494,7 +3494,7 @@ void TBuiltIns::initialize(int version, EProfile profile, const SpvVersion& spvV
             stageBuiltins[EShLangVertex].append(
                 "int gl_InstanceID;"          // needs qualifier fixed later
                 );
-        if (spvVersion.vulkan >= 100 && version >= 140)
+        if (spvVersion.vulkan > 0 && version >= 140)
             stageBuiltins[EShLangVertex].append(
                 "in int gl_VertexIndex;"
                 "in int gl_InstanceIndex;"
@@ -3544,7 +3544,7 @@ void TBuiltIns::initialize(int version, EProfile profile, const SpvVersion& spvV
                     "in highp int gl_VertexID;"      // needs qualifier fixed later
                     "in highp int gl_InstanceID;"    // needs qualifier fixed later
                     );
-            if (spvVersion.vulkan >= 100)
+            if (spvVersion.vulkan > 0)
                 stageBuiltins[EShLangVertex].append(
                     "in highp int gl_VertexIndex;"
                     "in highp int gl_InstanceIndex;"
@@ -5569,7 +5569,7 @@ void TBuiltIns::identifyBuiltIns(int version, EProfile profile, const SpvVersion
             BuiltInVariable("gl_SubGroupLeMaskARB",     EbvSubGroupLeMask,     symbolTable);
             BuiltInVariable("gl_SubGroupLtMaskARB",     EbvSubGroupLtMask,     symbolTable);
 
-            if (spvVersion.vulkan >= 100)
+            if (spvVersion.vulkan > 0)
                 // Treat "gl_SubGroupSizeARB" as shader input instead of uniform for Vulkan
                 SpecialQualifier("gl_SubGroupSizeARB", EvqVaryingIn, EbvSubGroupSize, symbolTable);
 
@@ -5670,7 +5670,7 @@ void TBuiltIns::identifyBuiltIns(int version, EProfile profile, const SpvVersion
             SpecialQualifier("gl_InstanceID", EvqInstanceId, EbvInstanceId, symbolTable);
         }
 
-        if (spvVersion.vulkan >= 100) {
+        if (spvVersion.vulkan > 0) {
             BuiltInVariable("gl_VertexIndex",   EbvVertexIndex,   symbolTable);
             BuiltInVariable("gl_InstanceIndex", EbvInstanceIndex, symbolTable);
         }

glslang/MachineIndependent/Scan.cpp

@@ -1244,7 +1244,7 @@ int TScanContext::tokenizeIdentifier()
     case TEXTURE1DARRAY:
     case SAMPLER:
     case SAMPLERSHADOW:
-        if (parseContext.spvVersion.vulkan >= 100)
+        if (parseContext.spvVersion.vulkan > 0)
             return keyword;
         else
             return identifierOrType();
@@ -1255,7 +1255,7 @@ int TScanContext::tokenizeIdentifier()
     case ISUBPASSINPUTMS:
     case USUBPASSINPUT:
     case USUBPASSINPUTMS:
-        if (parseContext.spvVersion.vulkan >= 100)
+        if (parseContext.spvVersion.vulkan > 0)
             return keyword;
         else
             return identifierOrType();

glslang/MachineIndependent/ShaderLang.cpp

@@ -578,7 +578,7 @@ bool DeduceVersionProfile(TInfoSink& infoSink, EShLanguage stage, bool versionNo
     if (spvVersion.spv != 0) {
         switch (profile) {
         case  EEsProfile:
-            if (spvVersion.vulkan >= 100 && version < 310) {
+            if (spvVersion.vulkan > 0 && version < 310) {
                 correct = false;
                 infoSink.info.message(EPrefixError, "#version: ES shaders for Vulkan SPIR-V require version 310 or higher");
                 version = 310;
@@ -593,7 +593,7 @@ bool DeduceVersionProfile(TInfoSink& infoSink, EShLanguage stage, bool versionNo
             infoSink.info.message(EPrefixError, "#version: compilation for SPIR-V does not support the compatibility profile");
             break;
         default:
-            if (spvVersion.vulkan >= 100 && version < 140) {
+            if (spvVersion.vulkan > 0 && version < 140) {
                 correct = false;
                 infoSink.info.message(EPrefixError, "#version: Desktop shaders for Vulkan SPIR-V require version 140 or higher");
                 version = 140;
@@ -814,7 +814,7 @@ bool ProcessDeferred(
     intermediate.setProfile(profile);
     intermediate.setSpv(spvVersion);
     RecordProcesses(intermediate, messages, sourceEntryPointName);
-    if (spvVersion.vulkan >= 100)
+    if (spvVersion.vulkan > 0)
         intermediate.setOriginUpperLeft();
     if ((messages & EShMsgHlslOffsets) || source == EShSourceHlsl)
         intermediate.setHlslOffsets();

glslang/MachineIndependent/Versions.cpp

@@ -802,7 +802,7 @@ void TParseVersions::spvRemoved(const TSourceLoc& loc, const char* op)
 // Call for any operation removed because Vulkan SPIR-V is being generated.
 void TParseVersions::vulkanRemoved(const TSourceLoc& loc, const char* op)
 {
-    if (spvVersion.vulkan >= 100)
+    if (spvVersion.vulkan > 0)
         error(loc, "not allowed when using GLSL for Vulkan", op, "");
 }
 

glslang/MachineIndependent/Versions.h

@@ -83,7 +83,7 @@ struct SpvVersion {
     SpvVersion() : spv(0), vulkanGlsl(0), vulkan(0), openGl(0) {}
     unsigned int spv; // the version of SPIR-V to target, as defined by "word 1" of the SPIR-V binary header
     int vulkanGlsl;   // the version of GLSL semantics for Vulkan, from GL_KHR_vulkan_glsl, for "#define VULKAN XXX"
-    int vulkan;       // the version of Vulkan, for which SPIR-V execution environment rules to use (100 means 1.0)
+    int vulkan;       // the version of Vulkan, for which SPIR-V execution environment rules to use
     int openGl;       // the version of GLSL semantics for OpenGL, from GL_ARB_gl_spirv, for "#define GL_SPIRV XXX"
 };
 

glslang/MachineIndependent/localintermediate.h

@@ -378,7 +378,7 @@ public:
             processes.addProcess("client opengl100");
 
         // target-environment processes
-        if (spvVersion.vulkan == 100)
+        if (spvVersion.vulkan > 0)
             processes.addProcess("target-env vulkan1.0");
         else if (spvVersion.vulkan > 0)
             processes.addProcess("target-env vulkanUnknown");