[lld] r304243 - Check Live instead of the section type.

[Rafael Espindola via llvm-commits]

Author: rafael
Date: Tue May 30 15:40:03 2017
New Revision: 304243

URL: http://llvm.org/viewvc/llvm-project?rev=304243&view=rev
Log:
Check Live instead of the section type.

By the time we get here all live sections should have been combined
into InputSections.

Modified:
    lld/trunk/ELF/LinkerScript.cpp
    lld/trunk/ELF/OutputSections.cpp
    lld/trunk/ELF/OutputSections.h

Modified: lld/trunk/ELF/LinkerScript.cpp
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/ELF/LinkerScript.cpp?rev=304243&r1=304242&r2=304243&view=diff
==============================================================================
--- lld/trunk/ELF/LinkerScript.cpp (original)
+++ lld/trunk/ELF/LinkerScript.cpp Tue May 30 15:40:03 2017
@@ -291,11 +291,13 @@ LinkerScript::computeInputSections(const
     size_t SizeBefore = Ret.size();
 
     for (InputSectionBase *Sec : InputSections) {
-      if (!isa<InputSection>(Sec))
+      if (Sec->Assigned)
         continue;
 
-      if (Sec->Assigned)
+      if (!Sec->Live) {
+        reportDiscarded(Sec);
         continue;
+      }
 
       // For -emit-relocs we have to ignore entries like
       //   .rela.dyn : { *(.rela.data) }

Modified: lld/trunk/ELF/OutputSections.cpp
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/ELF/OutputSections.cpp?rev=304243&r1=304242&r2=304243&view=diff
==============================================================================
--- lld/trunk/ELF/OutputSections.cpp (original)
+++ lld/trunk/ELF/OutputSections.cpp Tue May 30 15:40:03 2017
@@ -351,7 +351,7 @@ static bool canMergeToProgbits(unsigned
          Type == SHT_NOTE;
 }
 
-static void reportDiscarded(InputSectionBase *IS) {
+void elf::reportDiscarded(InputSectionBase *IS) {
   if (!Config->PrintGcSections)
     return;
   message("removing unused section from '" + IS->Name + "' in file '" +

Modified: lld/trunk/ELF/OutputSections.h
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/ELF/OutputSections.h?rev=304243&r1=304242&r2=304243&view=diff
==============================================================================
--- lld/trunk/ELF/OutputSections.h (original)
+++ lld/trunk/ELF/OutputSections.h Tue May 30 15:40:03 2017
@@ -149,6 +149,7 @@ private:
 };
 
 uint64_t getHeaderSize();
+void reportDiscarded(InputSectionBase *IS);
 
 } // namespace elf
 } // namespace lld