[clang] [llvm] [AMDGPU] First installment of IGLP_OPT 4 (MFMAValuSpacingOpt) implementation (PR #190916)

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@@ -823,7 +823,8 @@ enum IGLPStrategyID : int {
   MFMASmallGemmOptID = 0,
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hidekisaito wrote:

In the next NFC PR, I plan to move the enums to header file so that two other .cpp files can use MFMAValuSpacingOptID name (instead of literal 4). Let me know if you think the NFC PR should come first.

https://github.com/llvm/llvm-project/pull/190916