commit a65bf65e0bb4f2c119bb388e7f036e664d108669
author Craig Topper <craig.topper@intel.com> Tue Aug 28 22:32:14 2018 +0000
committer Craig Topper <craig.topper@intel.com> Tue Aug 28 22:32:14 2018 +0000
tree 25bff6ab0a67eedbad298be6affde4e2bfbcbc6c
parent c8074aa654da982e1169e889da08bc1d93536754

[X86] Add kadd intrinsics to match gcc and icc.

This adds the following intrinsics:
_kadd_mask64
_kadd_mask32
_kadd_mask16
_kadd_mask8

These are missing from the Intel Intrinsics Guide, but are implemented by both gcc and icc.

llvm-svn: 340879

clang/lib/CodeGen/CGBuiltin.cpp

diff --git a/clang/lib/CodeGen/CGBuiltin.cpp b/clang/lib/CodeGen/CGBuiltin.cpp
index 116863a..7bb1a65 100644
--- a/clang/lib/CodeGen/CGBuiltin.cpp
+++ b/clang/lib/CodeGen/CGBuiltin.cpp
@@ -8613,7 +8613,7 @@
     LHS = CGF.Builder.CreateNot(LHS);
 
   return CGF.Builder.CreateBitCast(CGF.Builder.CreateBinOp(Opc, LHS, RHS),
-                                  CGF.Builder.getIntNTy(std::max(NumElts, 8U)));
+                                   Ops[0]->getType());
 }
 
 static Value *EmitX86Select(CodeGenFunction &CGF,
@@ -10031,6 +10031,34 @@
     return Builder.CreateZExt(Cmp, ConvertType(E->getType()));
   }
 
+  case X86::BI__builtin_ia32_kaddqi:
+  case X86::BI__builtin_ia32_kaddhi:
+  case X86::BI__builtin_ia32_kaddsi:
+  case X86::BI__builtin_ia32_kadddi: {
+    Intrinsic::ID IID;
+    switch (BuiltinID) {
+    default: llvm_unreachable("Unsupported intrinsic!");
+    case X86::BI__builtin_ia32_kaddqi:
+      IID = Intrinsic::x86_avx512_kadd_b;
+      break;
+    case X86::BI__builtin_ia32_kaddhi:
+      IID = Intrinsic::x86_avx512_kadd_w;
+      break;
+    case X86::BI__builtin_ia32_kaddsi:
+      IID = Intrinsic::x86_avx512_kadd_d;
+      break;
+    case X86::BI__builtin_ia32_kadddi:
+      IID = Intrinsic::x86_avx512_kadd_q;
+      break;
+    }
+
+    unsigned NumElts = Ops[0]->getType()->getIntegerBitWidth();
+    Value *LHS = getMaskVecValue(*this, Ops[0], NumElts);
+    Value *RHS = getMaskVecValue(*this, Ops[1], NumElts);
+    Function *Intr = CGM.getIntrinsic(IID);
+    Value *Res = Builder.CreateCall(Intr, {LHS, RHS});
+    return Builder.CreateBitCast(Res, Ops[0]->getType());
+  }
   case X86::BI__builtin_ia32_kandqi:
   case X86::BI__builtin_ia32_kandhi:
   case X86::BI__builtin_ia32_kandsi: