[llvm] [RISCV] Cost UDIV/UREM by a constant power of 2 as a SHL/AND in getArithmeticInstrCost() (PR #179570)

[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 origin/main HEAD --extensions h,cpp -- llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp llvm/lib/Target/RISCV/RISCVTargetTransformInfo.h llvm/lib/Target/X86/X86TargetTransformInfo.cpp --diff_from_common_commit
``````````

:warning:
The reproduction instructions above might return results for more than one PR
in a stack if you are using a stacked PR workflow. You can limit the results by
changing `origin/main` to the base branch/commit you want to compare against.
:warning:

</details>

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

``````````diff
diff --git a/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp b/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
index 7f364e434..857e3825c 100644
--- a/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
+++ b/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
@@ -2695,8 +2695,7 @@ RISCVTTIImpl::getCombinedArithmeticInstructionCost(
   if ((ISDOpcode == ISD::UDIV || ISDOpcode == ISD::UREM) &&
       Opd2Info.isConstant() && Opd2Info.isPowerOf2()) {
     if (ISDOpcode == ISD::UDIV)
-      return getArithmeticInstrCost(Instruction::LShr, Ty, CostKind,
-                                    Opd1Info,
+      return getArithmeticInstrCost(Instruction::LShr, Ty, CostKind, Opd1Info,
                                     Opd2Info.getNoProps());
     // UREM
     return getArithmeticInstrCost(Instruction::And, Ty, CostKind,

``````````

</details>


https://github.com/llvm/llvm-project/pull/179570