[llvm] [RISCV] Expand constant multiplication for targets without M extension (PR #137195)

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github-actions[bot] wrote:

<!--LLVM CODE FORMAT COMMENT: {clang-format}-->


:warning: C/C++ code formatter, clang-format found issues in your code. :warning:

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You can test this locally with the following command:
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``````````bash
git-clang-format --diff HEAD~1 HEAD --extensions cpp -- llvm/lib/Target/RISCV/RISCVISelLowering.cpp
``````````

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<details>
<summary>
View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/Target/RISCV/RISCVISelLowering.cpp b/llvm/lib/Target/RISCV/RISCVISelLowering.cpp
index 3a2b633e8..0206838be 100644
--- a/llvm/lib/Target/RISCV/RISCVISelLowering.cpp
+++ b/llvm/lib/Target/RISCV/RISCVISelLowering.cpp
@@ -15503,28 +15503,28 @@ static SDValue expandMulToBasicOps(SDNode *N, SelectionDAG &DAG,
   }
 
   llvm::SmallVector<std::pair<bool, uint64_t>> Factors; // {is_2^M+1, M}
-  
-  while (E > 1) { 
-      bool Found = false;
-      for (int64_t I = BitWidth - 1; I >= 2; --I) {    
-          uint64_t Factor = 1ULL << I;
-
-          if (E % (Factor - 1) == 0) {
-              Factors.push_back({false, I}); 
-              E /= Factor - 1;
-              Found = true;
-              break;
-          }
 
-          if (E % (Factor + 1) == 0) {
-              Factors.push_back({true, I}); 
-              E /= Factor + 1;
-              Found = true;
-              break; 
-          }
+  while (E > 1) {
+    bool Found = false;
+    for (int64_t I = BitWidth - 1; I >= 2; --I) {
+      uint64_t Factor = 1ULL << I;
+
+      if (E % (Factor - 1) == 0) {
+        Factors.push_back({false, I});
+        E /= Factor - 1;
+        Found = true;
+        break;
       }
-      if (!Found)
+
+      if (E % (Factor + 1) == 0) {
+        Factors.push_back({true, I});
+        E /= Factor + 1;
+        Found = true;
         break;
+      }
+    }
+    if (!Found)
+      break;
   }
 
   SDValue Result;

``````````

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https://github.com/llvm/llvm-project/pull/137195