Subzero, MIPS32: Cross-testing enabled for MIPS32

src/IceTargetLoweringMIPS32.cpp

Index: src/IceTargetLoweringMIPS32.cpp
diff --git a/src/IceTargetLoweringMIPS32.cpp b/src/IceTargetLoweringMIPS32.cpp
index 7a91331cd8aa95362b94b4553e8c71a5ed644a99..3d54e7017e7379f900333bc4eff826c7362b7a88 100644
--- a/src/IceTargetLoweringMIPS32.cpp
+++ b/src/IceTargetLoweringMIPS32.cpp
@@ -2242,7 +2242,17 @@ void TargetMIPS32::lowerIntrinsicCall(const InstIntrinsicCall *Instr) {
 }
 
 void TargetMIPS32::lowerLoad(const InstLoad *Instr) {
-  UnimplementedLoweringError(this, Instr);
+  // A Load instruction can be treated the same as an Assign instruction, after
+  // the source operand is transformed into an OperandARM32Mem operand.
+  Type Ty = Instr->getDest()->getType();
+  Operand *Src0 = formMemoryOperand(Instr->getSourceAddress(), Ty);
+  Variable *DestLoad = Instr->getDest();
+  DestLoad->setMustHaveReg();
+
+  // TODO(jvoung): handled folding opportunities. Sign and zero extension can
+  // be folded into a load.
+  auto *Assign = InstAssign::create(Func, DestLoad, Src0);
+  lowerAssign(Assign);
 }
 
 void TargetMIPS32::doAddressOptLoad() { UnimplementedError(getFlags()); }