Fix.

csyonghe · csyonghe · commit 1d4d0bed279e · 2025-02-26T18:13:13.000-08:00
diff --git a/source/slang/slang-emit-spirv.cpp b/source/slang/slang-emit-spirv.cpp
@@ -4344,8 +4344,11 @@ struct SPIRVEmitContext : public SourceEmitterBase, public SPIRVEmitSharedContex
                                                 continue;
                                         }
                                     }
-                                    paramsSet.add(spvGlobalInst);
                                     referencedBuiltinIRVars.add(globalInst);
+                                    // Don't add duplicate vars to the interface list.
+                                    bool paramAdded = paramsSet.add(spvGlobalInst);
+                                    if (!paramAdded)
+                                        continue;
 
                                     // Don't add a global param to the interface if it is a
                                     // specialization constant.

Original file line number	Diff line number	Diff line change
`@@ -4344,8 +4344,11 @@ struct SPIRVEmitContext : public SourceEmitterBase, public SPIRVEmitSharedContex`
`4344`	`4344`	`continue;`
`4345`	`4345`	`}`
`4346`	`4346`	`}`
`4347`		`- paramsSet.add(spvGlobalInst);`
`4348`	`4347`	`referencedBuiltinIRVars.add(globalInst);`
	`4348`	`+ // Don't add duplicate vars to the interface list.`
	`4349`	`+ bool paramAdded = paramsSet.add(spvGlobalInst);`
	`4350`	`+ if (!paramAdded)`
	`4351`	`+ continue;`
`4349`	`4352`
`4350`	`4353`	`// Don't add a global param to the interface if it is a`
`4351`	`4354`	`// specialization constant.`