EXT_ray_tracing requires spv1.4 (#2237)

Test/baseResults/spv.ext.AnyHitShader.rahit.out

 spv.ext.AnyHitShader.rahit
-// Module Version 10000
+// Module Version 10400
 // Generated by (magic number): 80008
 // Id's are bound by 94
 
@@ -7,7 +7,7 @@ spv.ext.AnyHitShader.rahit
                               Extension  "SPV_KHR_ray_tracing"
                1:             ExtInstImport  "GLSL.std.450"
                               MemoryModel Logical GLSL450
-                              EntryPoint AnyHitKHR 4  "main" 11 14 20 23 26 33 36 39 42 47 50 53 58 64 67 70 76 80
+                              EntryPoint AnyHitKHR 4  "main" 11 14 20 23 26 33 36 39 42 47 50 53 58 64 67 70 76 80 84
                               Source GLSL 460
                               SourceExtension  "GL_EXT_ray_tracing"
                               Name 4  "main"

Test/baseResults/spv.ext.ClosestHitShader.rchit.out

 spv.ext.ClosestHitShader.rchit
-// Module Version 10000
+// Module Version 10400
 // Generated by (magic number): 80008
 // Id's are bound by 101
 
@@ -7,7 +7,7 @@ spv.ext.ClosestHitShader.rchit
                               Extension  "SPV_KHR_ray_tracing"
                1:             ExtInstImport  "GLSL.std.450"
                               MemoryModel Logical GLSL450
-                              EntryPoint ClosestHitKHR 4  "main" 11 14 20 23 26 33 36 39 42 47 50 53 58 64 67 70 76 80
+                              EntryPoint ClosestHitKHR 4  "main" 11 14 20 23 26 33 36 39 42 47 50 53 58 64 67 70 76 80 85 98 100
                               Source GLSL 460
                               SourceExtension  "GL_EXT_ray_tracing"
                               Name 4  "main"

Test/baseResults/spv.ext.IntersectShader.rint.out

 spv.ext.IntersectShader.rint
-// Module Version 10000
+// Module Version 10400
 // Generated by (magic number): 80008
 // Id's are bound by 81
 
@@ -7,7 +7,7 @@ spv.ext.IntersectShader.rint
                               Extension  "SPV_KHR_ray_tracing"
                1:             ExtInstImport  "GLSL.std.450"
                               MemoryModel Logical GLSL450
-                              EntryPoint IntersectionKHR 4  "main" 11 14 20 23 26 33 36 39 42 47 50 56 59 65 69
+                              EntryPoint IntersectionKHR 4  "main" 11 14 20 23 26 33 36 39 42 47 50 56 59 65 69 73
                               Source GLSL 460
                               SourceExtension  "GL_EXT_ray_tracing"
                               Name 4  "main"

Test/baseResults/spv.ext.MissShader.rmiss.out

 spv.ext.MissShader.rmiss
-// Module Version 10000
+// Module Version 10400
 // Generated by (magic number): 80008
 // Id's are bound by 54
 
@@ -7,7 +7,7 @@ spv.ext.MissShader.rmiss
                               Extension  "SPV_KHR_ray_tracing"
                1:             ExtInstImport  "GLSL.std.450"
                               MemoryModel Logical GLSL450
-                              EntryPoint MissKHR 4  "main" 11 14 21 24 29 32
+                              EntryPoint MissKHR 4  "main" 11 14 21 24 29 32 36 51 53
                               Source GLSL 460
                               SourceExtension  "GL_EXT_ray_tracing"
                               Name 4  "main"

Test/baseResults/spv.ext.RayCallable.rcall.out

 spv.ext.RayCallable.rcall
-// Module Version 10000
+// Module Version 10400
 // Generated by (magic number): 80008
 // Id's are bound by 30
 
@@ -7,7 +7,7 @@ spv.ext.RayCallable.rcall
                               Extension  "SPV_KHR_ray_tracing"
                1:             ExtInstImport  "GLSL.std.450"
                               MemoryModel Logical GLSL450
-                              EntryPoint CallableKHR 4  "main" 11 14
+                              EntryPoint CallableKHR 4  "main" 11 14 18 29
                               Source GLSL 460
                               SourceExtension  "GL_EXT_ray_tracing"
                               Name 4  "main"

Test/baseResults/spv.ext.RayConstants.rgen.out

 spv.ext.RayConstants.rgen
-// Module Version 10000
+// Module Version 10400
 // Generated by (magic number): 80008
 // Id's are bound by 27
 
@@ -7,7 +7,7 @@ spv.ext.RayConstants.rgen
                               Extension  "SPV_KHR_ray_tracing"
                1:             ExtInstImport  "GLSL.std.450"
                               MemoryModel Logical GLSL450
-                              EntryPoint RayGenerationKHR 4  "main"
+                              EntryPoint RayGenerationKHR 4  "main" 8 26
                               Source GLSL 460
                               SourceExtension  "GL_EXT_ray_tracing"
                               Name 4  "main"

Test/baseResults/spv.ext.RayGenShader.rgen.out

 spv.ext.RayGenShader.rgen
-// Module Version 10000
+// Module Version 10400
 // Generated by (magic number): 80008
 // Id's are bound by 58
 
@@ -8,7 +8,7 @@ spv.ext.RayGenShader.rgen
                               Extension  "SPV_KHR_ray_tracing"
                1:             ExtInstImport  "GLSL.std.450"
                               MemoryModel Logical GLSL450
-                              EntryPoint RayGenerationKHR 4  "main" 11 21
+                              EntryPoint RayGenerationKHR 4  "main" 11 21 29 40 51 54 57
                               Source GLSL 460
                               SourceExtension  "GL_EXT_ray_flags_primitive_culling"
                               SourceExtension  "GL_EXT_ray_tracing"
@@ -33,7 +33,7 @@ spv.ext.RayGenShader.rgen
                               Decorate 29(accEXT0) Binding 0
                               MemberDecorate 38(block) 0 Offset 0
                               MemberDecorate 38(block) 1 Offset 16
-                              Decorate 38(block) BufferBlock
+                              Decorate 38(block) Block
                               Decorate 51(accEXT1) DescriptorSet 0
                               Decorate 51(accEXT1) Binding 1
                               Decorate 54(imageu) DescriptorSet 0

Test/baseResults/spv.ext.RayGenShader11.rgen.out

 spv.ext.RayGenShader11.rgen
-// Module Version 10000
+// Module Version 10400
 // Generated by (magic number): 80008
 // Id's are bound by 53
 
@@ -7,7 +7,7 @@ spv.ext.RayGenShader11.rgen
                               Extension  "SPV_KHR_ray_tracing"
                1:             ExtInstImport  "GLSL.std.450"
                               MemoryModel Logical GLSL450
-                              EntryPoint RayGenerationKHR 4  "main" 11 21
+                              EntryPoint RayGenerationKHR 4  "main" 11 21 29 39 52
                               Source GLSL 460
                               SourceExtension  "GL_EXT_ray_tracing"
                               Name 4  "main"
@@ -29,7 +29,7 @@ spv.ext.RayGenShader11.rgen
                               Decorate 29(accEXT) Binding 0
                               MemberDecorate 37(block) 0 Offset 0
                               MemberDecorate 37(block) 1 Offset 16
-                              Decorate 37(block) BufferBlock
+                              Decorate 37(block) Block
                               Decorate 52(payload) Location 0
                2:             TypeVoid
                3:             TypeFunction 2

Test/baseResults/spv.ext.RayGenShaderArray.rgen.out

 spv.ext.RayGenShaderArray.rgen
-// Module Version 10000
+// Module Version 10400
 // Generated by (magic number): 80008
 // Id's are bound by 89
 
@@ -10,7 +10,7 @@ spv.ext.RayGenShaderArray.rgen
                               Extension  "SPV_KHR_ray_tracing"
                1:             ExtInstImport  "GLSL.std.450"
                               MemoryModel Logical GLSL450
-                              EntryPoint RayGenerationKHR 4  "main" 11 21
+                              EntryPoint RayGenerationKHR 4  "main" 11 21 30 36 60 88
                               Source GLSL 460
                               SourceExtension  "GL_EXT_nonuniform_qualifier"
                               SourceExtension  "GL_EXT_ray_tracing"
@@ -36,7 +36,7 @@ spv.ext.RayGenShaderArray.rgen
                               MemberDecorate 34(block) 0 Offset 0
                               MemberDecorate 34(block) 1 Offset 16
                               MemberDecorate 34(block) 2 Offset 28
-                              Decorate 34(block) BufferBlock
+                              Decorate 34(block) Block
                               Decorate 60(accEXT1) DescriptorSet 0
                               Decorate 60(accEXT1) Binding 1
                               Decorate 75 DecorationNonUniformEXT

glslang/MachineIndependent/Versions.cpp

@@ -64,6 +64,7 @@
 //        checkDeprecated()
 //        requireNotRemoved()
 //        requireExtensions()
+//        extensionRequires()
 //
 //    Typically, only the first two calls are needed.  They go into a code path that
 //    implements Feature F, and will log the proper error/warning messages.  Parsing
@@ -78,9 +79,11 @@
 //     const char* const XXX_extension_X = "XXX_extension_X";
 //
 // 2) Add extension initialization to TParseVersions::initializeExtensionBehavior(),
-//    the first function below:
+//    the first function below and optionally a entry to extensionData for additional
+//    error checks:
 //
 //     extensionBehavior[XXX_extension_X] = EBhDisable;
+//     (Optional) exts[] = {XXX_extension_X, EShTargetSpv_1_4}
 //
 // 3) Add any preprocessor directives etc. in the next function, TParseVersions::getPreamble():
 //
@@ -140,6 +143,8 @@
 //    set of extensions that both enable them and are necessary, given the version of the symbol
 //    table. (There is a different symbol table for each version.)
 //
+// 7) If the extension has additional requirements like minimum SPIR-V version required, add them
+//    to extensionRequires()
 
 #include "parseVersions.h"
 #include "localintermediate.h"
@@ -155,6 +160,20 @@ namespace glslang {
 //
 void TParseVersions::initializeExtensionBehavior()
 {
+    typedef struct {
+        const char *const extensionName;
+        EShTargetLanguageVersion minSpvVersion;
+    } extensionData;
+
+    const extensionData exts[] = { {E_GL_EXT_ray_tracing, EShTargetSpv_1_4} };
+
+    for (int ii = 0; ii < sizeof(exts) / sizeof(exts[0]); ii++) {
+        // Add only extensions which require > spv1.0 to save space in map
+        if (exts[ii].minSpvVersion > EShTargetSpv_1_0) {
+            extensionMinSpv[E_GL_EXT_ray_tracing] = exts[ii].minSpvVersion;
+        }
+    }
+
     extensionBehavior[E_GL_OES_texture_3D]                   = EBhDisable;
     extensionBehavior[E_GL_OES_standard_derivatives]         = EBhDisable;
     extensionBehavior[E_GL_EXT_frag_depth]                   = EBhDisable;
@@ -329,6 +348,7 @@ void TParseVersions::initializeExtensionBehavior()
     extensionBehavior[E_GL_EXT_shader_subgroup_extended_types_int64]   = EBhDisable;
     extensionBehavior[E_GL_EXT_shader_subgroup_extended_types_float16] = EBhDisable;
 }
+
 #endif // GLSLANG_WEB
 
 // Get code that is not part of a shared symbol table, is specific to this shader,
@@ -828,6 +848,9 @@ void TParseVersions::updateExtensionBehavior(int line, const char* extension, co
     // check if extension is used with correct shader stage
     checkExtensionStage(getCurrentLoc(), extension);
 
+    // check if extension has additional requirements
+    extensionRequires(getCurrentLoc(), extension ,behaviorString);
+
     // update the requested extension
     updateExtensionBehavior(extension, behavior);
 
@@ -944,6 +967,24 @@ void TParseVersions::checkExtensionStage(const TSourceLoc& loc, const char * con
     }
 }
 
+// Check if extension has additional requirements
+void TParseVersions::extensionRequires(const TSourceLoc &loc, const char * const extension, const char *behaviorString)
+{
+    bool isEnabled = false;
+    if (!strcmp("require", behaviorString))
+        isEnabled = true;
+    else if (!strcmp("enable", behaviorString))
+        isEnabled = true;
+
+    if (isEnabled) {
+        unsigned int minSpvVersion = 0;
+        auto iter = extensionMinSpv.find(TString(extension));
+        if (iter != extensionMinSpv.end())
+            minSpvVersion = iter->second;
+        requireSpv(loc, extension, minSpvVersion);
+    }
+}
+
 // Call for any operation needing full GLSL integer data-type support.
 void TParseVersions::fullIntegerCheck(const TSourceLoc& loc, const char* op)
 {
@@ -1201,5 +1242,12 @@ void TParseVersions::requireSpv(const TSourceLoc& loc, const char* op)
         error(loc, "only allowed when generating SPIR-V", op, "");
 #endif
 }
+void TParseVersions::requireSpv(const TSourceLoc& loc, const char *op, unsigned int version)
+{
+#ifndef GLSLANG_WEB
+    if (spvVersion.spv < version)
+        error(loc, "not supported for current targeted SPIR-V version", op, "");
+#endif
+}
 
 } // end namespace glslang

glslang/MachineIndependent/Versions.h

@@ -36,6 +36,7 @@
 // ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 // POSSIBILITY OF SUCH DAMAGE.
 //
+
 #ifndef _VERSIONS_INCLUDED_
 #define _VERSIONS_INCLUDED_
 

glslang/MachineIndependent/parseVersions.h

@@ -101,6 +101,7 @@ public:
     void updateExtensionBehavior(int line, const char* const extension, const char* behavior) { }
     void updateExtensionBehavior(const char* const extension, TExtensionBehavior) { }
     void checkExtensionStage(const TSourceLoc&, const char* const extension) { }
+    void extensionRequires(const TSourceLoc&, const char* const extension, const char* behavior) { }
     void fullIntegerCheck(const TSourceLoc&, const char* op) { }
     void doubleCheck(const TSourceLoc&, const char* op) { }
     bool float16Arithmetic() { return false; }
@@ -139,6 +140,7 @@ public:
     virtual bool checkExtensionsRequested(const TSourceLoc&, int numExtensions, const char* const extensions[],
         const char* featureDesc);
     virtual void checkExtensionStage(const TSourceLoc&, const char* const extension);
+    virtual void extensionRequires(const TSourceLoc&, const char* const extension, const char* behavior);
     virtual void fullIntegerCheck(const TSourceLoc&, const char* op);
 
     virtual void unimplemented(const TSourceLoc&, const char* featureDesc);
@@ -170,6 +172,7 @@ public:
     virtual void vulkanRemoved(const TSourceLoc&, const char* op);
     virtual void requireVulkan(const TSourceLoc&, const char* op);
     virtual void requireSpv(const TSourceLoc&, const char* op);
+    virtual void requireSpv(const TSourceLoc&, const char *op, unsigned int version);
 
 
 #if defined(GLSLANG_WEB) && !defined(GLSLANG_WEB_DEVEL)
@@ -222,6 +225,7 @@ public:
 
 protected:
     TMap<TString, TExtensionBehavior> extensionBehavior;    // for each extension string, what its current behavior is set to
+    TMap<TString, unsigned int> extensionMinSpv;            // for each extension string, store minimum spirv required
     EShMessages messages;        // errors/warnings/rule-sets
     int numErrors;               // number of compile-time errors encountered
     TInputScanner* currentScanner;

glslang/Public/ShaderLang.h

@@ -413,6 +413,7 @@ enum TResourceType {
     EResCount
 };
 
+
 // Make one TShader per shader that you will link into a program. Then
 //  - provide the shader through setStrings() or setStringsWithLengths()
 //  - optionally call setEnv*(), see below for more detail

gtests/Spv.FromFile.cpp

@@ -329,21 +329,6 @@ INSTANTIATE_TEST_CASE_P(
         "spv.earlyReturnDiscard.frag",
         "spv.extPostDepthCoverage.frag",
         "spv.extPostDepthCoverage_Error.frag",
-        "spv.ext.AnyHitShader.rahit",
-        "spv.ext.AnyHitShader_Errors.rahit",
-        "spv.ext.ClosestHitShader.rchit",
-        "spv.ext.ClosestHitShader_Errors.rchit",
-        "spv.ext.IntersectShader.rint",
-        "spv.ext.IntersectShader_Errors.rint",
-        "spv.ext.MissShader.rmiss",
-        "spv.ext.MissShader_Errors.rmiss",
-        "spv.ext.RayPrimCull_Errors.rgen",
-        "spv.ext.RayCallable.rcall",
-        "spv.ext.RayCallable_Errors.rcall",
-        "spv.ext.RayConstants.rgen",
-        "spv.ext.RayGenShader.rgen",
-        "spv.ext.RayGenShader11.rgen",
-        "spv.ext.RayGenShaderArray.rgen",
         "spv.float16convertonlyarith.comp",
         "spv.float16convertonlystorage.comp",
         "spv.flowControl.frag",
@@ -554,6 +539,21 @@ INSTANTIATE_TEST_CASE_P(
         "spv.1.4.sparseTexture.frag",
         "spv.1.4.texture.frag",
         "spv.1.4.constructComposite.comp",
+        "spv.ext.AnyHitShader.rahit",
+        "spv.ext.AnyHitShader_Errors.rahit",
+        "spv.ext.ClosestHitShader.rchit",
+        "spv.ext.ClosestHitShader_Errors.rchit",
+        "spv.ext.IntersectShader.rint",
+        "spv.ext.IntersectShader_Errors.rint",
+        "spv.ext.MissShader.rmiss",
+        "spv.ext.MissShader_Errors.rmiss",
+        "spv.ext.RayPrimCull_Errors.rgen",
+        "spv.ext.RayCallable.rcall",
+        "spv.ext.RayCallable_Errors.rcall",
+        "spv.ext.RayConstants.rgen",
+        "spv.ext.RayGenShader.rgen",
+        "spv.ext.RayGenShader11.rgen",
+        "spv.ext.RayGenShaderArray.rgen",
     })),
     FileNameAsCustomTestSuffix
 );