[llvm] [NFC][AMDGPU] Remove unused/unimplemented `getWavesPerEU` variants (PR #181131)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-amdgpu

Author: Juan Manuel Martinez Caamaño (jmmartinez)

<details>
<summary>Changes</summary>

I couldn't find any obvious use for these 2 variants of `getWavesPerEU`.

---
Full diff: https://github.com/llvm/llvm-project/pull/181131.diff


2 Files Affected:

- (modified) llvm/lib/Target/AMDGPU/AMDGPUAttributor.cpp (-10) 
- (modified) llvm/lib/Target/AMDGPU/AMDGPUSubtarget.h (-7) 


``````````diff
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUAttributor.cpp b/llvm/lib/Target/AMDGPU/AMDGPUAttributor.cpp
index 4bcaabfd3263a..9bd8e97619ce1 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUAttributor.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUAttributor.cpp
@@ -201,16 +201,6 @@ class AMDGPUInformationCache : public InformationCache {
   /// Get code object version.
   unsigned getCodeObjectVersion() const { return CodeObjectVersion; }
 
-  /// Get the effective value of "amdgpu-waves-per-eu" for the function,
-  /// accounting for the interaction with the passed value to use for
-  /// "amdgpu-flat-work-group-size".
-  std::pair<unsigned, unsigned>
-  getWavesPerEU(const Function &F,
-                std::pair<unsigned, unsigned> FlatWorkGroupSize) {
-    const GCNSubtarget &ST = TM.getSubtarget<GCNSubtarget>(F);
-    return ST.getWavesPerEU(FlatWorkGroupSize, getLDSSize(F), F);
-  }
-
   std::optional<std::pair<unsigned, unsigned>>
   getWavesPerEUAttr(const Function &F) {
     auto Val = AMDGPU::getIntegerPairAttribute(F, "amdgpu-waves-per-eu",
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUSubtarget.h b/llvm/lib/Target/AMDGPU/AMDGPUSubtarget.h
index e5dc48b6998e4..302fe7c850b75 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUSubtarget.h
+++ b/llvm/lib/Target/AMDGPU/AMDGPUSubtarget.h
@@ -110,13 +110,6 @@ class AMDGPUSubtarget {
   /// size, register usage, and/or lds usage.
   std::pair<unsigned, unsigned> getWavesPerEU(const Function &F) const;
 
-  /// Overload which uses the specified values for the flat work group sizes,
-  /// rather than querying the function itself. \p FlatWorkGroupSizes Should
-  /// correspond to the function's value for getFlatWorkGroupSizes.
-  std::pair<unsigned, unsigned>
-  getWavesPerEU(const Function &F,
-                std::pair<unsigned, unsigned> FlatWorkGroupSizes) const;
-
   /// Overload which uses the specified values for the flat workgroup sizes and
   /// LDS space rather than querying the function itself. \p FlatWorkGroupSizes
   /// should correspond to the function's value for getFlatWorkGroupSizes and \p

``````````

</details>


https://github.com/llvm/llvm-project/pull/181131