[llvm] [VP][RISCV] Add vp.cttz.elts intrinsic and its RISC-V codegen (PR #90502)

[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 d566a5cd22b4a653f10698f90c691a1452dad5ce 661d71873560fadecfbaf63a2850d32bdd2083ca -- llvm/include/llvm/CodeGen/TargetLowering.h llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp llvm/lib/CodeGen/SelectionDAG/LegalizeTypes.h llvm/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp llvm/lib/Target/RISCV/RISCVISelLowering.cpp llvm/lib/Target/RISCV/RISCVISelLowering.h
``````````

</details>

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

``````````diff
diff --git a/llvm/lib/Target/RISCV/RISCVISelLowering.cpp b/llvm/lib/Target/RISCV/RISCVISelLowering.cpp
index d6bb4542bb..d2b4fa1015 100644
--- a/llvm/lib/Target/RISCV/RISCVISelLowering.cpp
+++ b/llvm/lib/Target/RISCV/RISCVISelLowering.cpp
@@ -684,21 +684,48 @@ RISCVTargetLowering::RISCVTargetLowering(const TargetMachine &TM,
     setOperationAction({ISD::INTRINSIC_W_CHAIN, ISD::INTRINSIC_VOID},
                        MVT::Other, Custom);
 
-    static const unsigned IntegerVPOps[] = {
-        ISD::VP_ADD,         ISD::VP_SUB,         ISD::VP_MUL,
-        ISD::VP_SDIV,        ISD::VP_UDIV,        ISD::VP_SREM,
-        ISD::VP_UREM,        ISD::VP_AND,         ISD::VP_OR,
-        ISD::VP_XOR,         ISD::VP_ASHR,        ISD::VP_LSHR,
-        ISD::VP_SHL,         ISD::VP_REDUCE_ADD,  ISD::VP_REDUCE_AND,
-        ISD::VP_REDUCE_OR,   ISD::VP_REDUCE_XOR,  ISD::VP_REDUCE_SMAX,
-        ISD::VP_REDUCE_SMIN, ISD::VP_REDUCE_UMAX, ISD::VP_REDUCE_UMIN,
-        ISD::VP_MERGE,       ISD::VP_SELECT,      ISD::VP_FP_TO_SINT,
-        ISD::VP_FP_TO_UINT,  ISD::VP_SETCC,       ISD::VP_SIGN_EXTEND,
-        ISD::VP_ZERO_EXTEND, ISD::VP_TRUNCATE,    ISD::VP_SMIN,
-        ISD::VP_SMAX,        ISD::VP_UMIN,        ISD::VP_UMAX,
-        ISD::VP_ABS, ISD::EXPERIMENTAL_VP_REVERSE, ISD::EXPERIMENTAL_VP_SPLICE,
-        ISD::VP_SADDSAT,     ISD::VP_UADDSAT,     ISD::VP_SSUBSAT,
-        ISD::VP_USUBSAT,     ISD::VP_CTTZ_ELTS,   ISD::VP_CTTZ_ELTS_ZERO_UNDEF};
+    static const unsigned IntegerVPOps[] = {ISD::VP_ADD,
+                                            ISD::VP_SUB,
+                                            ISD::VP_MUL,
+                                            ISD::VP_SDIV,
+                                            ISD::VP_UDIV,
+                                            ISD::VP_SREM,
+                                            ISD::VP_UREM,
+                                            ISD::VP_AND,
+                                            ISD::VP_OR,
+                                            ISD::VP_XOR,
+                                            ISD::VP_ASHR,
+                                            ISD::VP_LSHR,
+                                            ISD::VP_SHL,
+                                            ISD::VP_REDUCE_ADD,
+                                            ISD::VP_REDUCE_AND,
+                                            ISD::VP_REDUCE_OR,
+                                            ISD::VP_REDUCE_XOR,
+                                            ISD::VP_REDUCE_SMAX,
+                                            ISD::VP_REDUCE_SMIN,
+                                            ISD::VP_REDUCE_UMAX,
+                                            ISD::VP_REDUCE_UMIN,
+                                            ISD::VP_MERGE,
+                                            ISD::VP_SELECT,
+                                            ISD::VP_FP_TO_SINT,
+                                            ISD::VP_FP_TO_UINT,
+                                            ISD::VP_SETCC,
+                                            ISD::VP_SIGN_EXTEND,
+                                            ISD::VP_ZERO_EXTEND,
+                                            ISD::VP_TRUNCATE,
+                                            ISD::VP_SMIN,
+                                            ISD::VP_SMAX,
+                                            ISD::VP_UMIN,
+                                            ISD::VP_UMAX,
+                                            ISD::VP_ABS,
+                                            ISD::EXPERIMENTAL_VP_REVERSE,
+                                            ISD::EXPERIMENTAL_VP_SPLICE,
+                                            ISD::VP_SADDSAT,
+                                            ISD::VP_UADDSAT,
+                                            ISD::VP_SSUBSAT,
+                                            ISD::VP_USUBSAT,
+                                            ISD::VP_CTTZ_ELTS,
+                                            ISD::VP_CTTZ_ELTS_ZERO_UNDEF};
 
     static const unsigned FloatingPointVPOps[] = {
         ISD::VP_FADD,        ISD::VP_FSUB,        ISD::VP_FMUL,

``````````

</details>


https://github.com/llvm/llvm-project/pull/90502