r335564 - [X86] Redefine avx512 packed fpclass intrinsics to return a vXi1 mask and implement the mask input argument using an 'and' IR instruction.

[Craig Topper via cfe-commits]

Author: ctopper
Date: Mon Jun 25 17:44:02 2018
New Revision: 335564

URL: http://llvm.org/viewvc/llvm-project?rev=335564&view=rev
Log:
[X86] Redefine avx512 packed fpclass intrinsics to return a vXi1 mask and implement the mask input argument using an 'and' IR instruction.

Additional IR is emitted to convert between scalar and vXi1 type to match the expected software inferface for the builtin that clang exposes.

Modified:
    cfe/trunk/lib/CodeGen/CGBuiltin.cpp

Modified: cfe/trunk/lib/CodeGen/CGBuiltin.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGBuiltin.cpp?rev=335564&r1=335563&r2=335564&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CGBuiltin.cpp (original)
+++ cfe/trunk/lib/CodeGen/CGBuiltin.cpp Mon Jun 25 17:44:02 2018
@@ -10120,6 +10120,43 @@ Value *CodeGenFunction::EmitX86BuiltinEx
     return Builder.CreateExtractValue(Call, 1);
   }
 
+  case X86::BI__builtin_ia32_fpclassps128_mask:
+  case X86::BI__builtin_ia32_fpclassps256_mask:
+  case X86::BI__builtin_ia32_fpclassps512_mask:
+  case X86::BI__builtin_ia32_fpclasspd128_mask:
+  case X86::BI__builtin_ia32_fpclasspd256_mask:
+  case X86::BI__builtin_ia32_fpclasspd512_mask: {
+    unsigned NumElts = Ops[0]->getType()->getVectorNumElements();
+    Value *MaskIn = Ops[2];
+    Ops.erase(&Ops[2]);
+
+    Intrinsic::ID ID;
+    switch (BuiltinID) {
+    default: llvm_unreachable("Unsupported intrinsic!");
+    case X86::BI__builtin_ia32_fpclassps128_mask:
+      ID = Intrinsic::x86_avx512_mask_fpclass_ps_128;
+      break;
+    case X86::BI__builtin_ia32_fpclassps256_mask:
+      ID = Intrinsic::x86_avx512_mask_fpclass_ps_256;
+      break;
+    case X86::BI__builtin_ia32_fpclassps512_mask:
+      ID = Intrinsic::x86_avx512_mask_fpclass_ps_512;
+      break;
+    case X86::BI__builtin_ia32_fpclasspd128_mask:
+      ID = Intrinsic::x86_avx512_mask_fpclass_pd_128;
+      break;
+    case X86::BI__builtin_ia32_fpclasspd256_mask:
+      ID = Intrinsic::x86_avx512_mask_fpclass_pd_256;
+      break;
+    case X86::BI__builtin_ia32_fpclasspd512_mask:
+      ID = Intrinsic::x86_avx512_mask_fpclass_pd_512;
+      break;
+    }
+
+    Value *Fpclass = Builder.CreateCall(CGM.getIntrinsic(ID), Ops);
+    return EmitX86MaskedCompareResult(*this, Fpclass, NumElts, MaskIn);
+  }
+
   // packed comparison intrinsics
   case X86::BI__builtin_ia32_cmpeqps:
   case X86::BI__builtin_ia32_cmpeqpd: