[llvm] [AMDGPU][Scheduler] Refactor VGPR rematerialization during scheduling (PR #118722)

[Matt Arsenault via llvm-commits]

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@@ -324,6 +324,13 @@ unsigned getMaxNumVGPRs(const MCSubtargetInfo *STI, unsigned WavesPerEU);
 unsigned getNumWavesPerEUWithNumVGPRs(const MCSubtargetInfo *STI,
                                       unsigned NumVGPRs);
 
+/// Returns the necessary reduction in number of VGPRs from using \p VGPRs VGPRs
+/// to increase the achievable number of waves per EU for this subtarget by 1.
+/// Returns 0 when using \p VGPRs VGPRs already results in maximum number of
+/// waves per EU.
+unsigned getNumVGPRsToIncreaseWavesPerEU(const MCSubtargetInfo *STI,
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arsenm wrote:

Function name sounds backwards for what it does. Should include the word decrease or reduction?

https://github.com/llvm/llvm-project/pull/118722