Subzero: Reduce the amount of #ifdef'd code.

src/IceTargetLowering.cpp

Index: src/IceTargetLowering.cpp
diff --git a/src/IceTargetLowering.cpp b/src/IceTargetLowering.cpp
index 7c93463ab96ac6c6e13609e627b45ac4c7dcec58..990bba836d8a7e225bc1a778c89c11014e9704c2 100644
--- a/src/IceTargetLowering.cpp
+++ b/src/IceTargetLowering.cpp
@@ -411,7 +411,7 @@ InstCall *TargetLowering::makeHelperCall(const IceString &Name, Variable *Dest,
 }
 
 void TargetLowering::emitWithoutPrefix(const ConstantRelocatable *C) const {
-  if (!ALLOW_DUMP)
+  if (!buildAllowsDump())
     return;
   Ostream &Str = Ctx->getStrEmit();
   if (C->getSuppressMangling())
@@ -427,7 +427,7 @@ void TargetLowering::emitWithoutPrefix(const ConstantRelocatable *C) const {
 }
 
 void TargetLowering::emit(const ConstantRelocatable *C) const {
-  if (!ALLOW_DUMP)
+  if (!buildAllowsDump())
     return;
   Ostream &Str = Ctx->getStrEmit();
   Str << getConstantPrefix();
@@ -472,7 +472,7 @@ IceString dataSectionSuffix(const IceString &SectionSuffix,
 
 void TargetDataLowering::emitGlobal(const VariableDeclaration &Var,
                                     const IceString &SectionSuffix) {
-  if (!ALLOW_DUMP)
+  if (!buildAllowsDump())
     return;
 
   // If external and not initialized, this must be a cross test.