From: Craig Topper <craig.topper@intel.com>
Date: Tue, 26 Jun 2018 00:44:02 +0000 (+0000)
Subject: [X86] Redefine avx512 packed fpclass intrinsics to return a vXi1 mask and implement... 
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=265fa9857ba66631d565c5292458b8bcbcedc401;p=clang

[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.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@335564 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/CGBuiltin.cpp b/lib/CodeGen/CGBuiltin.cpp
index de96127987..09edfa7568 100644
--- a/lib/CodeGen/CGBuiltin.cpp
+++ b/lib/CodeGen/CGBuiltin.cpp
@@ -10120,6 +10120,43 @@ Value *CodeGenFunction::EmitX86BuiltinExpr(unsigned BuiltinID,
     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: