[GlobalISel] IRTranslator: Add MachineMemOperand to target memory intrinsics
Reviewers: qcolombet, ab, t.p.northover, aditya_nandakumar, dsanders
Reviewed By: qcolombet
Subscribers: rovka, kristof.beyls, javed.absar, igorb, llvm-commits
Differential Revision: https://reviews.llvm.org/D33724
llvm-svn: 304743
diff --git a/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp b/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp
index afc18a1..c3861e6 100644
--- a/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp
@@ -784,6 +784,21 @@
return false;
MIB.addUse(getOrCreateVReg(*Arg));
}
+
+ // Add a MachineMemOperand if it is a target mem intrinsic.
+ const TargetLowering &TLI = *MF->getSubtarget().getTargetLowering();
+ TargetLowering::IntrinsicInfo Info;
+ // TODO: Add a GlobalISel version of getTgtMemIntrinsic.
+ if (TLI.getTgtMemIntrinsic(Info, CI, ID)) {
+ MachineMemOperand::Flags Flags =
+ Info.vol ? MachineMemOperand::MOVolatile : MachineMemOperand::MONone;
+ Flags |=
+ Info.readMem ? MachineMemOperand::MOLoad : MachineMemOperand::MOStore;
+ uint64_t Size = Info.memVT.getSizeInBits() >> 3;
+ MIB.addMemOperand(MF->getMachineMemOperand(MachinePointerInfo(Info.ptrVal),
+ Flags, Size, Info.align));
+ }
+
return true;
}