[llvm] [GlobalISel] Add computeNumSignBits for ASHR (PR #139503)

[via llvm-commits]

github-actions[bot] wrote:

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


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

<details>
<summary>
You can test this locally with the following command:
</summary>

``````````bash
git-clang-format --diff HEAD~1 HEAD --extensions cpp,h -- llvm/include/llvm/CodeGen/GlobalISel/GISelValueTracking.h llvm/lib/CodeGen/GlobalISel/GISelValueTracking.cpp
``````````

</details>

<details>
<summary>
View the diff from clang-format here.
</summary>

``````````diff
diff --git a/llvm/lib/CodeGen/GlobalISel/GISelValueTracking.cpp b/llvm/lib/CodeGen/GlobalISel/GISelValueTracking.cpp
index 01246f703..4e029d179 100644
--- a/llvm/lib/CodeGen/GlobalISel/GISelValueTracking.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/GISelValueTracking.cpp
@@ -1861,7 +1861,8 @@ unsigned GISelValueTracking::computeNumSignBits(Register R,
     Register Src1 = MI.getOperand(1).getReg();
     Register Src2 = MI.getOperand(2).getReg();
     FirstAnswer = computeNumSignBits(Src1, DemandedElts, Depth + 1);
-    if (auto C = getValidMinimumShiftAmount(Src2, TyBits, DemandedElts, Depth + 1))
+    if (auto C =
+            getValidMinimumShiftAmount(Src2, TyBits, DemandedElts, Depth + 1))
       FirstAnswer = std::min<uint64_t>(FirstAnswer + *C, TyBits);
     break;
   }

``````````

</details>


https://github.com/llvm/llvm-project/pull/139503