[llvm] [RISCV][NFC] Fix intrinsic misspelled in a comment (PR #98998)

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


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

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git-clang-format --diff 3a0e01543212c1e1c80f5665aee0e12289e06a29 5524c9d49bbfe124d09cac7efa613a9e8f31bd07 --extensions cpp -- llvm/lib/Target/RISCV/RISCVCodeGenPrepare.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/Target/RISCV/RISCVCodeGenPrepare.cpp b/llvm/lib/Target/RISCV/RISCVCodeGenPrepare.cpp
index 3ed32e7e48..85cf225f76 100644
--- a/llvm/lib/Target/RISCV/RISCVCodeGenPrepare.cpp
+++ b/llvm/lib/Target/RISCV/RISCVCodeGenPrepare.cpp
@@ -120,15 +120,17 @@ bool RISCVCodeGenPrepare::visitAnd(BinaryOperator &BO) {
 //
 // loop:
 // %phi = phi <float> [ ..., %entry ], [ %acc, %loop ]
-// %acc = call float @llvm.vector.reduce.fadd.nxv2f32(float %phi, <vscale x 2 x float> %vec)
+// %acc = call float @llvm.vector.reduce.fadd.nxv2f32(float %phi, <vscale x 2 x
+// float> %vec)
 //
 // ->
 //
 // loop:
 // %phi = phi <vscale x 2 x float> [ ..., %entry ], [ %acc.vec, %loop ]
 // %phi.scalar = extractelement <vscale x 2 x float> %phi, i64 0
-// %acc = call float @llvm.vector.reduce.fadd.nxv2f32(float %x, <vscale x 2 x float> %vec)
-// %acc.vec = insertelement <vscale x 2 x float> poison, float %acc.next, i64 0
+// %acc = call float @llvm.vector.reduce.fadd.nxv2f32(float %x, <vscale x 2 x
+// float> %vec) %acc.vec = insertelement <vscale x 2 x float> poison, float
+// %acc.next, i64 0
 //
 // Which eliminates the scalar -> vector -> scalar crossing during instruction
 // selection.

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https://github.com/llvm/llvm-project/pull/98998