Have the selection dag grab TargetLowering off of the subtarget

[oota-llvm.git] / include / llvm / CodeGen / Analysis.h

diff --git a/include/llvm/CodeGen/Analysis.h b/include/llvm/CodeGen/Analysis.h
index b791ba09adaf52ccfeba7fee9d3c8dc29477bf12..eb804c1df1bc0b12d9f4d282d05fca163390da1d 100644 (file)
--- a/include/llvm/CodeGen/Analysis.h
+++ b/include/llvm/CodeGen/Analysis.h
@@ -97,6 +97,13 @@ bool returnTypeIsEligibleForTailCall(const Function *F,
                                      const ReturnInst *Ret,
                                      const TargetLoweringBase &TLI);
 
+// True if GV can be left out of the object symbol table. This is the case
+// for linkonce_odr values whose address is not significant. While legal, it is
+// not normally profitable to omit them from the .o symbol table. Using this
+// analysis makes sense when the information can be passed down to the linker
+// or we are in LTO.
+bool canBeOmittedFromSymbolTable(const GlobalValue *GV);
+
 } // End llvm namespace
 
 #endif