[SystemZ] Fix handling of 64-bit memcmp results
Generalize r188163 to cope with return types other than MVT::i32, just
as the existing visitMemCmpCall code did. I've split this out into a
subroutine so that it can be used for other upcoming patches.
I also noticed that I'd used the wrong API to record the out chain.
It's a load that uses DAG.getRoot() rather than getRoot(), so the out
chain should go on PendingLoads. I don't have a testcase for that because
we don't do any interesting scheduling on z yet.
llvm-svn: 188540
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
index 82ac0ed..217d2f9 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
@@ -543,6 +543,9 @@
llvm_unreachable("UserOp2 should not exist at instruction selection time!");
}
+ void processIntegerCallValue(const Instruction &I,
+ SDValue Value, bool IsSigned);
+
void HandlePHINodesInSuccessorBlocks(const BasicBlock *LLVMBB);
/// EmitFuncArgumentDbgValue - If V is an function argument then create
