[llvm] [AMDGPUInstCombineIntrinsic] Do not narrow 8,16-bit amdgcn_s_buffer_load instrinsics (PR #117997)

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``````````bash
git-clang-format --diff 79eb406a67fe08458548289da72cda18248a9313 d3366c7e46432ed388ea403c6b8d46c2207d00c1 --extensions cpp -- llvm/lib/Target/AMDGPU/AMDGPUInstCombineIntrinsic.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUInstCombineIntrinsic.cpp b/llvm/lib/Target/AMDGPU/AMDGPUInstCombineIntrinsic.cpp
index 4800fdb449..b8a907b598 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUInstCombineIntrinsic.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUInstCombineIntrinsic.cpp
@@ -1404,7 +1404,8 @@ static Value *simplifyAMDGCNMemoryIntrinsicDemanded(InstCombiner &IC,
       }
     }
 
-    unsigned NewLoadWidthInBits = SingleComponentSizeInBits * DemandedElts.popcount();
+    unsigned NewLoadWidthInBits =
+        SingleComponentSizeInBits * DemandedElts.popcount();
     if (II.getIntrinsicID() == Intrinsic::amdgcn_s_buffer_load &&
         NewLoadWidthInBits < 32) {
       // From the GCN gen3 manual, section 7.4 (Scalar Memory Operations /

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https://github.com/llvm/llvm-project/pull/117997