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[Fix] (ShaderTranspiler): keep the demoted viewport-index variable after its private pointer type

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swung0x48
2026-08-20 05:37:53 -04:00
parent bde14cae29
commit f0fd6407ae
1 changed files with 8 additions and 0 deletions
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MobileGL/MG_Util/ShaderTranspiler/SpirvPasses/LowerViewportIndexPass.cpp
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@@ -210,6 +210,14 @@ namespace MobileGL {
variable->SetResultType(privatePointerTypeId); variable->SetResultType(privatePointerTypeId);
variable->SetInOperand(0, {static_cast<uint32_t>(spv::StorageClass::Private)}); variable->SetInOperand(0, {static_cast<uint32_t>(spv::StorageClass::Private)});
// FindPointerToType APPENDS a newly minted pointer type to the end of the
// globals section - after this variable - and SPIR-V requires def before use.
// Re-anchor the variable directly after its new type, which is equally correct
// when the type already existed further up.
Instruction* privatePointerType = defUseMgr->GetDef(privatePointerTypeId);
variable->RemoveFromList();
variable->InsertAfter(privatePointerType);
irContext->KillInst(target.decoration); irContext->KillInst(target.decoration);
RemoveFromEntryPointInterfaces(irContext, variableId); RemoveFromEntryPointInterfaces(irContext, variableId);
ReplaceName(irContext, variableId, kLoweredName); ReplaceName(irContext, variableId, kLoweredName);