[PATCH] D102377: [AIX] Do NOT emit avaiable externally symbols

[Jinsong Ji via Phabricator via llvm-commits]

jsji created this revision.
jsji added reviewers: PowerPC, Xiangling_L, DiggerLin, sfertile.
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Globals with “available_externally” linkage are never emitted into the
object file corresponding to the LLVM module.

This is to fix the LIT failure in CodeGen/Generic/externally_available.ll


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D102377

Files:
  llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp


Index: llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
===================================================================
--- llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
+++ llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
@@ -1803,8 +1803,6 @@
     LinkageAttr = MCSA_Weak;
     break;
   case GlobalValue::AvailableExternallyLinkage:
-    LinkageAttr = MCSA_Extern;
-    break;
   case GlobalValue::PrivateLinkage:
     return;
   case GlobalValue::InternalLinkage:
@@ -2149,6 +2147,10 @@
 }
 
 void PPCAIXAsmPrinter::emitGlobalVariable(const GlobalVariable *GV) {
+  // Should not emit 'available externally' functions at all
+  if (GV->hasAvailableExternallyLinkage())
+    return;
+
   // Special LLVM global arrays have been handled at the initialization.
   if (isSpecialLLVMGlobalArrayToSkip(GV) || isSpecialLLVMGlobalArrayForStaticInit(GV))
     return;


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