Avoid symbol name clash when filling TOC.
Patch by Adhemerval Zanella.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164141 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCAsmPrinter.cpp b/lib/Target/PowerPC/PPCAsmPrinter.cpp
index ee35ee5..a66677f 100644
--- a/lib/Target/PowerPC/PPCAsmPrinter.cpp
+++ b/lib/Target/PowerPC/PPCAsmPrinter.cpp
@@ -368,9 +368,14 @@
else if (MO.isJTI())
MOSymbol = GetJTISymbol(MO.getIndex());
MCSymbol *&TOCEntry = TOC[MOSymbol];
- if (TOCEntry == 0)
- TOCEntry = GetTempSymbol("C", TOCLabelID++);
-
+ // To avoid name clash check if the name already exists.
+ while (TOCEntry == 0) {
+ if (OutContext.LookupSymbol(Twine(MAI->getPrivateGlobalPrefix()) +
+ "C" + Twine(TOCLabelID++)) == 0) {
+ TOCEntry = GetTempSymbol("C", TOCLabelID);
+ }
+ }
+
const MCExpr *Exp =
MCSymbolRefExpr::Create(TOCEntry, MCSymbolRefExpr::VK_PPC_TOC_ENTRY,
OutContext);