GlobalISel: legalize GEP instructions with small offsets.
llvm-svn: 281602
diff --git a/llvm/lib/CodeGen/GlobalISel/MachineLegalizeHelper.cpp b/llvm/lib/CodeGen/GlobalISel/MachineLegalizeHelper.cpp
index 7c32cd5..6d18139 100644
--- a/llvm/lib/CodeGen/GlobalISel/MachineLegalizeHelper.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/MachineLegalizeHelper.cpp
@@ -281,6 +281,13 @@
MI.eraseFromParent();
return Legalized;
}
+ case TargetOpcode::G_GEP: {
+ assert(TypeIdx == 1 && "unable to legalize pointer of GEP");
+ unsigned OffsetExt = MRI.createGenericVirtualRegister(WideTy);
+ MIRBuilder.buildSExt(OffsetExt, MI.getOperand(2).getReg());
+ MI.getOperand(2).setReg(OffsetExt);
+ return Legalized;
+ }
}
}