================
@@ -592,6 +593,18 @@ void CGHLSLRuntime::finishCodeGen() {
M.setModuleFlag(llvm::Module::ModFlagBehavior::Error, "dx.nativelowprec",
1);
+ if (LangOpts.HLSLSpvPreserveInterface && T.isSPIRV()) {
+ // Runs before optimization. Keeps Input/Output globals from GlobalDCE.
+ SmallVector<GlobalValue *, 8> InterfaceVars;
+ for (GlobalVariable &GV : M.globals()) {
+ unsigned AS = GV.getAddressSpace();
+ if (AS == 7 || AS == 8) // addrspace 7 = Input, addrspace 8 = Output
----------------
dnovillo wrote:
Thanks. I'll take a look.
https://github.com/llvm/llvm-project/pull/196404
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