[LLVMdev] LowerINTRINSIC_W_CHAIN in X86

[kewuzhang]

Hi guys, 

In X86ISelLowering.cpp

I saw”
...
 case Intrinsic::x86_rdrand_16:
  case Intrinsic::x86_rdrand_32:
….
case Intrinsic::x86_avx512_gather_qpd_512:
  case Intrinsic::x86_avx512_gather_qps_512:
..
“
those intrinsics are handled by “LowerINTRINSIC_W_CHAIN”.

How the “INTRINSIC_W_CHAIN” opCode is set instead of “INTRINSIC_WO_CHAIN”?

tks

Kevin





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