[RISCV] Use ClangBuiltin in IntrinsicsRISCV.td to map some scalar crypto builtins to IR intrinsic.

[craig.topper]

Summary

This is the way most targets do it for a simple mapping.

We can't do this for all builtins due to type overloading of the IR intrinsics.

[asb]

LGTM.

clang/lib/CodeGen/CGBuiltin.cpp

 //===---- CGBuiltin.cpp - Emit LLVM Code for builtins ---------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
case RISCV::BI__builtin_riscv_unzip_32: {
     }
 
     IntrinsicTypes = {ResultType};
     break;
   }
 
   // Zk builtins
 
-  // Zknd
-  case RISCV::BI__builtin_riscv_aes32dsi_32:
-    ID = Intrinsic::riscv_aes32dsi;
-    break;
-  case RISCV::BI__builtin_riscv_aes32dsmi_32:
-    ID = Intrinsic::riscv_aes32dsmi;
-    break;
-  case RISCV::BI__builtin_riscv_aes64ds_64:
-    ID = Intrinsic::riscv_aes64ds;
-    break;
-  case RISCV::BI__builtin_riscv_aes64dsm_64:
-    ID = Intrinsic::riscv_aes64dsm;
-    break;
-  case RISCV::BI__builtin_riscv_aes64im_64:
-    ID = Intrinsic::riscv_aes64im;
-    break;
-
-  // Zkne
-  case RISCV::BI__builtin_riscv_aes32esi_32:
-    ID = Intrinsic::riscv_aes32esi;
-    break;
-  case RISCV::BI__builtin_riscv_aes32esmi_32:
-    ID = Intrinsic::riscv_aes32esmi;
-    break;
-  case RISCV::BI__builtin_riscv_aes64es_64:
-    ID = Intrinsic::riscv_aes64es;
-    break;
-  case RISCV::BI__builtin_riscv_aes64esm_64:
-    ID = Intrinsic::riscv_aes64esm;
-    break;
-
-  // Zknd & Zkne
-  case RISCV::BI__builtin_riscv_aes64ks1i_64:
-    ID = Intrinsic::riscv_aes64ks1i;
-    break;
-  case RISCV::BI__builtin_riscv_aes64ks2_64:
-    ID = Intrinsic::riscv_aes64ks2;
-    break;
-
   // Zknh
   case RISCV::BI__builtin_riscv_sha256sig0:
     ID = Intrinsic::riscv_sha256sig0;
     IntrinsicTypes = {ResultType};
     break;
   case RISCV::BI__builtin_riscv_sha256sig1:
     ID = Intrinsic::riscv_sha256sig1;
     IntrinsicTypes = {ResultType};
     break;
   case RISCV::BI__builtin_riscv_sha256sum0:
     ID = Intrinsic::riscv_sha256sum0;
     IntrinsicTypes = {ResultType};
     break;
   case RISCV::BI__builtin_riscv_sha256sum1:
     ID = Intrinsic::riscv_sha256sum1;
     IntrinsicTypes = {ResultType};
     break;
-  case RISCV::BI__builtin_riscv_sha512sig0_64:
-    ID = Intrinsic::riscv_sha512sig0;
-    break;
-  case RISCV::BI__builtin_riscv_sha512sig0h_32:
-    ID = Intrinsic::riscv_sha512sig0h;
-    break;
-  case RISCV::BI__builtin_riscv_sha512sig0l_32:
-    ID = Intrinsic::riscv_sha512sig0l;
-    break;
-  case RISCV::BI__builtin_riscv_sha512sig1_64:
-    ID = Intrinsic::riscv_sha512sig1;
-    break;
-  case RISCV::BI__builtin_riscv_sha512sig1h_32:
-    ID = Intrinsic::riscv_sha512sig1h;
-    break;
-  case RISCV::BI__builtin_riscv_sha512sig1l_32:
-    ID = Intrinsic::riscv_sha512sig1l;
-    break;
-  case RISCV::BI__builtin_riscv_sha512sum0_64:
-    ID = Intrinsic::riscv_sha512sum0;
-    break;
-  case RISCV::BI__builtin_riscv_sha512sum0r_32:
-    ID = Intrinsic::riscv_sha512sum0r;
-    break;
-  case RISCV::BI__builtin_riscv_sha512sum1_64:
-    ID = Intrinsic::riscv_sha512sum1;
-    break;
-  case RISCV::BI__builtin_riscv_sha512sum1r_32:
-    ID = Intrinsic::riscv_sha512sum1r;
-    break;
 
   // Zksed
   case RISCV::BI__builtin_riscv_sm4ks:
     ID = Intrinsic::riscv_sm4ks;
     IntrinsicTypes = {ResultType};
     break;
   case RISCV::BI__builtin_riscv_sm4ed:
     ID = Intrinsic::riscv_sm4ed;

llvm/include/llvm/IR/IntrinsicsRISCV.td

: DefaultAttrsIntrinsic<[llvm_i64_ty],
                             [IntrNoMem, IntrSpeculatable]>;
 
 class ScalarCryptoByteSelectAny
     : DefaultAttrsIntrinsic<[llvm_anyint_ty],
                             [LLVMMatchType<0>, LLVMMatchType<0>, llvm_i32_ty],
                             [IntrNoMem, IntrSpeculatable, ImmArg<ArgIndex<2>>]>;
 
 // Zknd
-def int_riscv_aes32dsi  : ScalarCryptoByteSelect32;
-def int_riscv_aes32dsmi : ScalarCryptoByteSelect32;
+def int_riscv_aes32dsi  : ScalarCryptoByteSelect32,
+                          ClangBuiltin<"__builtin_riscv_aes32dsi_32">;
+def int_riscv_aes32dsmi : ScalarCryptoByteSelect32,
+                          ClangBuiltin<"__builtin_riscv_aes32dsmi_32">;
+
+def int_riscv_aes64ds   : ScalarCryptoGprGprIntrinsic64,
+                          ClangBuiltin<"__builtin_riscv_aes64ds_64">;
+def int_riscv_aes64dsm  : ScalarCryptoGprGprIntrinsic64,
+                          ClangBuiltin<"__builtin_riscv_aes64dsm_64">;
 
-def int_riscv_aes64ds   : ScalarCryptoGprGprIntrinsic64;
-def int_riscv_aes64dsm  : ScalarCryptoGprGprIntrinsic64;
-
-def int_riscv_aes64im   : ScalarCryptoGprIntrinsic64;
+def int_riscv_aes64im   : ScalarCryptoGprIntrinsic64,
+                          ClangBuiltin<"__builtin_riscv_aes64im_64">;
 
 // Zkne
-def int_riscv_aes32esi  : ScalarCryptoByteSelect32;
-def int_riscv_aes32esmi : ScalarCryptoByteSelect32;
-
-def int_riscv_aes64es   : ScalarCryptoGprGprIntrinsic64;
-def int_riscv_aes64esm  : ScalarCryptoGprGprIntrinsic64;
+def int_riscv_aes32esi  : ScalarCryptoByteSelect32,
+                          ClangBuiltin<"__builtin_riscv_aes32esi_32">;
+def int_riscv_aes32esmi : ScalarCryptoByteSelect32,
+                          ClangBuiltin<"__builtin_riscv_aes32esmi_32">;
+
+def int_riscv_aes64es   : ScalarCryptoGprGprIntrinsic64,
+                          ClangBuiltin<"__builtin_riscv_aes64es_64">;
+def int_riscv_aes64esm  : ScalarCryptoGprGprIntrinsic64,
+                          ClangBuiltin<"__builtin_riscv_aes64esm_64">;
 
 // Zknd & Zkne
-def int_riscv_aes64ks2  : ScalarCryptoGprGprIntrinsic64;
+def int_riscv_aes64ks2  : ScalarCryptoGprGprIntrinsic64,
+                          ClangBuiltin<"__builtin_riscv_aes64ks2_64">;
 def int_riscv_aes64ks1i : DefaultAttrsIntrinsic<[llvm_i64_ty],
                                                 [llvm_i64_ty, llvm_i32_ty],
                                                 [IntrNoMem, IntrSpeculatable,
-                                                 ImmArg<ArgIndex<1>>]>;
+                                                 ImmArg<ArgIndex<1>>]>,
+                          ClangBuiltin<"__builtin_riscv_aes64ks1i_64">;
 
 // Zknh
 def int_riscv_sha256sig0 : ScalarCryptoGprIntrinsicAny;
 def int_riscv_sha256sig1 : ScalarCryptoGprIntrinsicAny;
 def int_riscv_sha256sum0 : ScalarCryptoGprIntrinsicAny;
 def int_riscv_sha256sum1 : ScalarCryptoGprIntrinsicAny;
 
-def int_riscv_sha512sig0l : ScalarCryptoGprGprIntrinsic32;
-def int_riscv_sha512sig0h : ScalarCryptoGprGprIntrinsic32;
-def int_riscv_sha512sig1l : ScalarCryptoGprGprIntrinsic32;
-def int_riscv_sha512sig1h : ScalarCryptoGprGprIntrinsic32;
-def int_riscv_sha512sum0r : ScalarCryptoGprGprIntrinsic32;
-def int_riscv_sha512sum1r : ScalarCryptoGprGprIntrinsic32;
-
-def int_riscv_sha512sig0 : ScalarCryptoGprIntrinsic64;
-def int_riscv_sha512sig1 : ScalarCryptoGprIntrinsic64;
-def int_riscv_sha512sum0 : ScalarCryptoGprIntrinsic64;
-def int_riscv_sha512sum1 : ScalarCryptoGprIntrinsic64;
+def int_riscv_sha512sig0l : ScalarCryptoGprGprIntrinsic32,
+                            ClangBuiltin<"__builtin_riscv_sha512sig0l_32">;
+def int_riscv_sha512sig0h : ScalarCryptoGprGprIntrinsic32,
+                            ClangBuiltin<"__builtin_riscv_sha512sig0h_32">;
+def int_riscv_sha512sig1l : ScalarCryptoGprGprIntrinsic32,
+                            ClangBuiltin<"__builtin_riscv_sha512sig1l_32">;
+def int_riscv_sha512sig1h : ScalarCryptoGprGprIntrinsic32,
+                            ClangBuiltin<"__builtin_riscv_sha512sig1h_32">;
+def int_riscv_sha512sum0r : ScalarCryptoGprGprIntrinsic32,
+                            ClangBuiltin<"__builtin_riscv_sha512sum0r_32">;
+def int_riscv_sha512sum1r : ScalarCryptoGprGprIntrinsic32,
+                            ClangBuiltin<"__builtin_riscv_sha512sum1r_32">;
+
+def int_riscv_sha512sig0 : ScalarCryptoGprIntrinsic64,
+                           ClangBuiltin<"__builtin_riscv_sha512sig0_64">;
+def int_riscv_sha512sig1 : ScalarCryptoGprIntrinsic64,
+                           ClangBuiltin<"__builtin_riscv_sha512sig1_64">;
+def int_riscv_sha512sum0 : ScalarCryptoGprIntrinsic64,
+                           ClangBuiltin<"__builtin_riscv_sha512sum0_64">;
+def int_riscv_sha512sum1 : ScalarCryptoGprIntrinsic64,
+                           ClangBuiltin<"__builtin_riscv_sha512sum1_64">;
 
 // Zksed
 def int_riscv_sm4ks      : ScalarCryptoByteSelectAny;
 def int_riscv_sm4ed      : ScalarCryptoByteSelectAny;
 
 // Zksh
 def int_riscv_sm3p0      : ScalarCryptoGprIntrinsicAny;
 def int_riscv_sm3p1      : ScalarCryptoGprIntrinsicAny;
 } // TargetPrefix = "riscv"
 
 //===----------------------------------------------------------------------===//
 // Vendor extensions
 //===----------------------------------------------------------------------===//
 include "llvm/IR/IntrinsicsRISCVXTHead.td"
 include "llvm/IR/IntrinsicsRISCVXsf.td"