[llvm] [AMDGPU] Replace dynamic VGPR feature with attribute (PR #133444)

[Shilei Tian via llvm-commits]

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@@ -403,9 +405,13 @@ unsigned GCNSubtarget::getReservedNumSGPRs(const Function &F) const {
 std::pair<unsigned, unsigned>
 GCNSubtarget::computeOccupancy(const Function &F, unsigned LDSSize,
                                unsigned NumSGPRs, unsigned NumVGPRs) const {
+  bool IsDynamicVGPR = isDynamicVGPREnabled();
+  if (F.hasFnAttribute("amdgpu-dynamic-vgpr"))
+    IsDynamicVGPR = F.getFnAttribute("amdgpu-dynamic-vgpr").getValueAsBool();
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shiltian wrote:

I think this needs to be consistent in all places thus a helper would be definitely needed.

https://github.com/llvm/llvm-project/pull/133444