================
@@ -414,9 +414,20 @@ void CGHLSLRuntime::emitEntryFunction(const FunctionDecl
*FD,
void CGHLSLRuntime::setHLSLFunctionAttributes(const FunctionDecl *FD,
llvm::Function *Fn) {
- if (FD->isInExportDeclContext()) {
- const StringRef ExportAttrKindStr = "hlsl.export";
- Fn->addFnAttr(ExportAttrKindStr);
+ if (FD) { // "explicit" functions with declarations
+ if (FD->isInExportDeclContext()) {
+ const StringRef ExportAttrKindStr = "hlsl.export";
+ Fn->addFnAttr(ExportAttrKindStr);
+ }
+ // Respect noinline if the explicit functions use it
+ // otherwise default to alwaysinline
+ if (!Fn->hasFnAttribute(Attribute::NoInline))
+ Fn->addFnAttr(llvm::Attribute::AlwaysInline);
+ } else { // "implicit" autogenerated functions with no declaration
+ // Implicit functions might get marked as noinline by default
+ // but we override that for HLSL
+ Fn->removeFnAttr(Attribute::NoInline);
----------------
pow2clk wrote:
It is applied here:
https://github.com/llvm/llvm-project/blob/df159d3cf8e681f8d225bd0b4ed0cbd97b16c588/clang/lib/CodeGen/CodeGenModule.cpp#L2477-L2479
on functions not explicitly created by the user, but generated to construct or
destruct global/static local variables as well as the global functions that
call each of these at the top and bottom of the entry function.
https://github.com/llvm/llvm-project/pull/106588
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