[WebAssembly] memory.copy
Summary: Depends on D57495.
Reviewers: aheejin, dschuff
Subscribers: sbc100, jgravelle-google, hiraditya, sunfish
Differential Revision: https://reviews.llvm.org/D57498
llvm-svn: 353127
diff --git a/llvm/lib/Target/WebAssembly/WebAssemblySelectionDAGInfo.cpp b/llvm/lib/Target/WebAssembly/WebAssemblySelectionDAGInfo.cpp
index 07271b2..a23128f 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblySelectionDAGInfo.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblySelectionDAGInfo.cpp
@@ -17,3 +17,16 @@
#define DEBUG_TYPE "wasm-selectiondag-info"
WebAssemblySelectionDAGInfo::~WebAssemblySelectionDAGInfo() = default; // anchor
+
+SDValue WebAssemblySelectionDAGInfo::EmitTargetCodeForMemcpy(
+ SelectionDAG &DAG, const SDLoc &DL, SDValue Chain, SDValue Op1, SDValue Op2,
+ SDValue Op3, unsigned Align, bool isVolatile, bool AlwaysInline,
+ MachinePointerInfo DstPtrInfo, MachinePointerInfo SrcPtrInfo) const {
+ if (!DAG.getMachineFunction()
+ .getSubtarget<WebAssemblySubtarget>()
+ .hasBulkMemory())
+ return SDValue();
+
+ return DAG.getNode(WebAssemblyISD::MEMORY_COPY, DL, MVT::Other, Chain, Op1,
+ Op2, Op3);
+}