[GlobalISel] Add a G_BLOCK_ADDR opcode to handle IR blockaddress constants.
Differential Revision: https://reviews.llvm.org/D49900
llvm-svn: 338335
diff --git a/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp b/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp
index bafb7a0..e76c40f 100644
--- a/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp
@@ -1503,6 +1503,8 @@
Ops.push_back(getOrCreateVReg(*CV->getOperand(i)));
}
EntryBuilder.buildMerge(Reg, Ops);
+ } else if (auto *BA = dyn_cast<BlockAddress>(&C)) {
+ EntryBuilder.buildBlockAddress(Reg, BA);
} else
return false;
diff --git a/llvm/lib/CodeGen/GlobalISel/MachineIRBuilder.cpp b/llvm/lib/CodeGen/GlobalISel/MachineIRBuilder.cpp
index 9df931e..3271b54 100644
--- a/llvm/lib/CodeGen/GlobalISel/MachineIRBuilder.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/MachineIRBuilder.cpp
@@ -809,6 +809,15 @@
MMO);
}
+MachineInstrBuilder
+MachineIRBuilderBase::buildBlockAddress(unsigned Res, const BlockAddress *BA) {
+#ifndef NDEBUG
+ assert(getMRI()->getType(Res).isPointer() && "invalid res type");
+#endif
+
+ return buildInstr(TargetOpcode::G_BLOCK_ADDR).addDef(Res).addBlockAddress(BA);
+}
+
void MachineIRBuilderBase::validateTruncExt(unsigned Dst, unsigned Src,
bool IsExtend) {
#ifndef NDEBUG