commit aafce77b17d340aace52bcd49d1944109d82f14a
author Dale Johannesen <dalej@apple.com> Wed May 14 20:12:51 2008 +0000
committer Dale Johannesen <dalej@apple.com> Wed May 14 20:12:51 2008 +0000
tree e7d1caf5f9d6c359802174c4a01644b9aa326202
parent 50871247216dfef8386a112766e972a1792b0b56

Add CommonLinkage; currently tentative definitions
are represented as "weak", but there are subtle differences
in some cases on Darwin, so we need both.  The intent
is that "common" will behave identically to "weak" unless
somebody changes their target to do something else.
No functional change as yet.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51118 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/X86/X86ATTAsmPrinter.cpp

diff --git a/lib/Target/X86/X86ATTAsmPrinter.cpp b/lib/Target/X86/X86ATTAsmPrinter.cpp
index 6909da1..4659deb 100644
--- a/lib/Target/X86/X86ATTAsmPrinter.cpp
+++ b/lib/Target/X86/X86ATTAsmPrinter.cpp
@@ -309,7 +309,8 @@
       // non-lazily-resolved stubs
       if (GV->isDeclaration() ||
           GV->hasWeakLinkage() ||
-          GV->hasLinkOnceLinkage()) {
+          GV->hasLinkOnceLinkage() ||
+          GV->hasCommonLinkage()) {
         // Dynamically-resolved functions need a stub for the function.
         if (isCallOp && isa<Function>(GV)) {
           FnStubs.insert(Name);

lib/Target/X86/X86AsmPrinter.cpp

diff --git a/lib/Target/X86/X86AsmPrinter.cpp b/lib/Target/X86/X86AsmPrinter.cpp
index e1bc65f..3898a9e 100644
--- a/lib/Target/X86/X86AsmPrinter.cpp
+++ b/lib/Target/X86/X86AsmPrinter.cpp
@@ -200,7 +200,7 @@
       
       if (!I->isThreadLocal() &&
           (I->hasInternalLinkage() || I->hasWeakLinkage() ||
-           I->hasLinkOnceLinkage())) {
+           I->hasLinkOnceLinkage() || I->hasCommonLinkage())) {
         if (Size == 0) Size = 1;   // .comm Foo, 0 is undefined, avoid it.
         if (!NoZerosInBSS && TAI->getBSSSection())
           SwitchToDataSection(TAI->getBSSSection(), I);
@@ -235,6 +235,7 @@
     }
 
     switch (I->getLinkage()) {
+    case GlobalValue::CommonLinkage:
     case GlobalValue::LinkOnceLinkage:
     case GlobalValue::WeakLinkage:
       if (Subtarget->isTargetDarwin()) {

lib/Target/X86/X86IntelAsmPrinter.cpp

diff --git a/lib/Target/X86/X86IntelAsmPrinter.cpp b/lib/Target/X86/X86IntelAsmPrinter.cpp
index ddd90cd..a1031bd 100644
--- a/lib/Target/X86/X86IntelAsmPrinter.cpp
+++ b/lib/Target/X86/X86IntelAsmPrinter.cpp
@@ -373,6 +373,7 @@
     bool bCustomSegment = false;
 
     switch (I->getLinkage()) {
+    case GlobalValue::CommonLinkage:
     case GlobalValue::LinkOnceLinkage:
     case GlobalValue::WeakLinkage:
       SwitchToDataSection("");

lib/Target/X86/X86Subtarget.cpp

diff --git a/lib/Target/X86/X86Subtarget.cpp b/lib/Target/X86/X86Subtarget.cpp
index 98d80c8..23ceb9b 100644
--- a/lib/Target/X86/X86Subtarget.cpp
+++ b/lib/Target/X86/X86Subtarget.cpp
@@ -41,6 +41,7 @@
     if (isTargetDarwin()) {
       return (!isDirectCall &&
               (GV->hasWeakLinkage() || GV->hasLinkOnceLinkage() ||
+               GV->hasCommonLinkage() ||
                (GV->isDeclaration() && !GV->hasNotBeenReadFromBitcode())));
     } else if (isTargetELF()) {
       // Extra load is needed for all non-statics.