Translate NEON vabdl, vaba, and vabal builtins to be implemented using the

vabd intrinsic combined with zext and add operations.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112937 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/CGBuiltin.cpp b/lib/CodeGen/CGBuiltin.cpp
index aab709c5dd9d9ea109f182d75ea7d9b4832941e4..986f621f64f532b65e823547bb160dbfe7b5c2e4 100644 (file)
--- a/lib/CodeGen/CGBuiltin.cpp
+++ b/lib/CodeGen/CGBuiltin.cpp
@@ -1128,19 +1128,36 @@ Value *CodeGenFunction::EmitARMBuiltinExpr(unsigned BuiltinID,
   switch (BuiltinID) {
   default: return 0;
   case ARM::BI__builtin_neon_vaba_v:
-  case ARM::BI__builtin_neon_vabaq_v:
-    Int = usgn ? Intrinsic::arm_neon_vabau : Intrinsic::arm_neon_vabas;
-    return EmitNeonCall(CGM.getIntrinsic(Int, &Ty, 1), Ops, "vaba");
-  case ARM::BI__builtin_neon_vabal_v:
-    Int = usgn ? Intrinsic::arm_neon_vabalu : Intrinsic::arm_neon_vabals;
-    return EmitNeonCall(CGM.getIntrinsic(Int, &Ty, 1), Ops, "vabal");
+  case ARM::BI__builtin_neon_vabaq_v: {
+    Ops[0] = Builder.CreateBitCast(Ops[0], Ty);
+    SmallVector<Value*, 2> Args;
+    Args.push_back(Ops[1]);
+    Args.push_back(Ops[2]);
+    Int = usgn ? Intrinsic::arm_neon_vabdu : Intrinsic::arm_neon_vabds;
+    Ops[1] = EmitNeonCall(CGM.getIntrinsic(Int, &Ty, 1), Args, "vaba");
+    return Builder.CreateAdd(Ops[0], Ops[1], "vaba");
+  }
+  case ARM::BI__builtin_neon_vabal_v: {
+    Ops[0] = Builder.CreateBitCast(Ops[0], Ty);
+    SmallVector<Value*, 2> Args;
+    Args.push_back(Ops[1]);
+    Args.push_back(Ops[2]);
+    Int = usgn ? Intrinsic::arm_neon_vabdu : Intrinsic::arm_neon_vabds;
+    const llvm::Type *DTy =llvm::VectorType::getTruncatedElementVectorType(VTy);
+    Ops[1] = EmitNeonCall(CGM.getIntrinsic(Int, &DTy, 1), Args, "vabal");
+    Ops[1] = Builder.CreateZExt(Ops[1], Ty);
+    return Builder.CreateAdd(Ops[0], Ops[1], "vabal");
+  }
   case ARM::BI__builtin_neon_vabd_v:
   case ARM::BI__builtin_neon_vabdq_v:
     Int = usgn ? Intrinsic::arm_neon_vabdu : Intrinsic::arm_neon_vabds;
     return EmitNeonCall(CGM.getIntrinsic(Int, &Ty, 1), Ops, "vabd");
-  case ARM::BI__builtin_neon_vabdl_v:
-    Int = usgn ? Intrinsic::arm_neon_vabdlu : Intrinsic::arm_neon_vabdls;
-    return EmitNeonCall(CGM.getIntrinsic(Int, &Ty, 1), Ops, "vabdl");
+  case ARM::BI__builtin_neon_vabdl_v: {
+    Int = usgn ? Intrinsic::arm_neon_vabdu : Intrinsic::arm_neon_vabds;
+    const llvm::Type *DTy =llvm::VectorType::getTruncatedElementVectorType(VTy);
+    Ops[0] = EmitNeonCall(CGM.getIntrinsic(Int, &DTy, 1), Ops, "vabdl");
+    return Builder.CreateZExt(Ops[0], Ty, "vabdl");
+  }
   case ARM::BI__builtin_neon_vabs_v:
   case ARM::BI__builtin_neon_vabsq_v:
     return EmitNeonCall(CGM.getIntrinsic(Intrinsic::arm_neon_vabs, &Ty, 1),