add support for weak linkage

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32222 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/ARM/ARMAsmPrinter.cpp b/lib/Target/ARM/ARMAsmPrinter.cpp
index 51a0f883d2ddb10874df8a4b7fca49c9056c93f2..ba5cdb19401acbc1ba713517896e6fe63295f249 100644 (file)
--- a/lib/Target/ARM/ARMAsmPrinter.cpp
+++ b/lib/Target/ARM/ARMAsmPrinter.cpp
@@ -128,7 +128,7 @@ bool ARMAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
     break;
   case Function::WeakLinkage:
   case Function::LinkOnceLinkage:
-    assert(0 && "Not implemented");
+    O << "\t.weak\t" << CurrentFnName << "\n";
     break;
   }
   EmitAlignment(2, F);

diff --git a/test/CodeGen/ARM/weak.ll b/test/CodeGen/ARM/weak.ll
new file mode 100644 (file)
index 0000000..682da8c
--- /dev/null
+++ b/test/CodeGen/ARM/weak.ll
@@ -0,0 +1,9 @@
+; RUN: llvm-upgrade < %s | llvm-as | llc -march=arm &&
+; RUN: llvm-upgrade < %s | llvm-as | llc -march=arm | grep .weak
+
+implementation   ; Functions:
+
+weak uint %f() {
+entry:
+       unreachable
+}