[X86] Add back some masked vector truncate builtins. Custom IRgen a a few others.
I'd like to make the select builtins require an avx512f, avx512bw, or avx512vl fature to match what is normally required to get masking. Truncate is special in that there are instructions with a 128/256-bit masked result even without avx512vl.
By using special buitlins we can emit a select without using the 128/256-bit select builtins.
llvm-svn: 334331
diff --git a/clang/lib/CodeGen/CGBuiltin.cpp b/clang/lib/CodeGen/CGBuiltin.cpp
index 012428d..9106df0 100644
--- a/clang/lib/CodeGen/CGBuiltin.cpp
+++ b/clang/lib/CodeGen/CGBuiltin.cpp
@@ -9309,6 +9309,35 @@
makeArrayRef(Indices, DstNumElts),
"insert");
}
+ case X86::BI__builtin_ia32_pmovqd512_mask:
+ case X86::BI__builtin_ia32_pmovwb512_mask: {
+ Value *Res = Builder.CreateTrunc(Ops[0], Ops[1]->getType());
+ return EmitX86Select(*this, Ops[2], Res, Ops[1]);
+ }
+ case X86::BI__builtin_ia32_pmovdb512_mask:
+ case X86::BI__builtin_ia32_pmovdw512_mask:
+ case X86::BI__builtin_ia32_pmovqw512_mask: {
+ if (const auto *C = dyn_cast<Constant>(Ops[2]))
+ if (C->isAllOnesValue())
+ return Builder.CreateTrunc(Ops[0], Ops[1]->getType());
+
+ Intrinsic::ID IID;
+ switch (BuiltinID) {
+ default: llvm_unreachable("Unsupported intrinsic!");
+ case X86::BI__builtin_ia32_pmovdb512_mask:
+ IID = Intrinsic::x86_avx512_mask_pmov_db_512;
+ break;
+ case X86::BI__builtin_ia32_pmovdw512_mask:
+ IID = Intrinsic::x86_avx512_mask_pmov_dw_512;
+ break;
+ case X86::BI__builtin_ia32_pmovqw512_mask:
+ IID = Intrinsic::x86_avx512_mask_pmov_qw_512;
+ break;
+ }
+
+ Function *Intr = CGM.getIntrinsic(IID);
+ return Builder.CreateCall(Intr, Ops);
+ }
case X86::BI__builtin_ia32_pblendw128:
case X86::BI__builtin_ia32_blendpd:
case X86::BI__builtin_ia32_blendps: