[llvm] [AMDGPU][TTI] Update cost model for transcendental instructions to be more precise (PR #189430)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp,h -- llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.h --diff_from_common_commit
``````````

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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp b/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp
index 99be3da74..5b2d29f49 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp
@@ -651,8 +651,7 @@ InstructionCost GCNTTIImpl::getArithmeticInstrCost(
       // f32 fmul
       // v_cvt_f16_f32
       // f16 div_fixup
-      int Cost =
-          4 * getFullRateInstrCost() + 2 * getTransInstrCost(CostKind);
+      int Cost = 4 * getFullRateInstrCost() + 2 * getTransInstrCost(CostKind);
       return LT.first * Cost * NElts;
     }
 
@@ -786,9 +785,8 @@ GCNTTIImpl::getIntrinsicInstrCost(const IntrinsicCostAttributes &ICA,
           NumFullRateOps += 5;
       }
 
-      InstructionCost Cost =
-          NumFullRateOps * getFullRateInstrCost() +
-          NumTransOps * getTransInstrCost(CostKind);
+      InstructionCost Cost = NumFullRateOps * getFullRateInstrCost() +
+                             NumTransOps * getTransInstrCost(CostKind);
       return LT.first * NElts * Cost;
     }
 
@@ -820,8 +818,7 @@ GCNTTIImpl::getIntrinsicInstrCost(const IntrinsicCostAttributes &ICA,
         NumFullRateOps += 5;
 
       InstructionCost Cost =
-          NumFullRateOps * getFullRateInstrCost() +
-          getTransInstrCost(CostKind);
+          NumFullRateOps * getFullRateInstrCost() + getTransInstrCost(CostKind);
       return LT.first * NElts * Cost;
     }
 
@@ -839,8 +836,7 @@ GCNTTIImpl::getIntrinsicInstrCost(const IntrinsicCostAttributes &ICA,
       unsigned NumFullRateOps = ST->hasTrigReducedRange() ? 2 : 1;
 
       InstructionCost Cost =
-          NumFullRateOps * getFullRateInstrCost() +
-          getTransInstrCost(CostKind);
+          NumFullRateOps * getFullRateInstrCost() + getTransInstrCost(CostKind);
       return LT.first * NElts * Cost;
     }
 
@@ -861,8 +857,7 @@ GCNTTIImpl::getIntrinsicInstrCost(const IntrinsicCostAttributes &ICA,
       }
 
       InstructionCost Cost =
-          NumFullRateOps * getFullRateInstrCost() +
-          getTransInstrCost(CostKind);
+          NumFullRateOps * getFullRateInstrCost() + getTransInstrCost(CostKind);
       return LT.first * NElts * Cost;
     }
 

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https://github.com/llvm/llvm-project/pull/189430