Remove the unused DBG_VALUE offset parameter from GlobalISel (NFC)

Followup to r309426.
rdar://problem/33580047

llvm-svn: 309449
diff --git a/llvm/lib/CodeGen/GlobalISel/MachineIRBuilder.cpp b/llvm/lib/CodeGen/GlobalISel/MachineIRBuilder.cpp
index 4636806..34a13d8 100644
--- a/llvm/lib/CodeGen/GlobalISel/MachineIRBuilder.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/MachineIRBuilder.cpp
@@ -96,15 +96,16 @@
       .addMetadata(Expr);
 }
 
-MachineInstrBuilder MachineIRBuilder::buildIndirectDbgValue(
-    unsigned Reg, unsigned Offset, const MDNode *Variable, const MDNode *Expr) {
+MachineInstrBuilder
+MachineIRBuilder::buildIndirectDbgValue(unsigned Reg, const MDNode *Variable,
+                                        const MDNode *Expr) {
   assert(isa<DILocalVariable>(Variable) && "not a variable");
   assert(cast<DIExpression>(Expr)->isValid() && "not an expression");
   assert(cast<DILocalVariable>(Variable)->isValidLocationForIntrinsic(DL) &&
          "Expected inlined-at fields to agree");
   return buildInstr(TargetOpcode::DBG_VALUE)
       .addReg(Reg, RegState::Debug)
-      .addImm(Offset)
+      .addImm(0)
       .addMetadata(Variable)
       .addMetadata(Expr);
 }
@@ -124,7 +125,6 @@
 }
 
 MachineInstrBuilder MachineIRBuilder::buildConstDbgValue(const Constant &C,
-                                                         unsigned Offset,
                                                          const MDNode *Variable,
                                                          const MDNode *Expr) {
   assert(isa<DILocalVariable>(Variable) && "not a variable");
@@ -144,7 +144,7 @@
     MIB.addReg(0U);
   }
 
-  return MIB.addImm(Offset).addMetadata(Variable).addMetadata(Expr);
+  return MIB.addImm(0).addMetadata(Variable).addMetadata(Expr);
 }
 
 MachineInstrBuilder MachineIRBuilder::buildFrameIndex(unsigned Res, int Idx) {