[llvm] [RISCV][SDAG] Prefer ShortForwardBranch to lower sdiv by pow2 (PR #67364)

[Craig Topper via llvm-commits]

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@@ -22714,32 +22714,7 @@ X86TargetLowering::BuildSDIVPow2(SDNode *N, const APInt &Divisor,
   if (Lg2 == 1)
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topperc wrote:

Just check the `Divisor == 2 || Division == -2`. The Lg2 made mode sense when we already needed Lg2 for the rest of the code, but that's in the TargetLowering::buildSDIVPow2WithCMov now.

https://github.com/llvm/llvm-project/pull/67364