[WinEH] _except_handlerN uses 0 instead of 1 to indicate catch-all
Our usage of 1 was a holdover from __C_specific_handler.
llvm-svn: 239482
diff --git a/llvm/lib/CodeGen/AsmPrinter/WinException.cpp b/llvm/lib/CodeGen/AsmPrinter/WinException.cpp
index 2bd9af5..40d6bab 100644
--- a/llvm/lib/CodeGen/AsmPrinter/WinException.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/WinException.cpp
@@ -612,12 +612,10 @@
"gaps in the SEH scope table");
for (const SEHHandler &Handler : LPInfo->SEHHandlers) {
// Emit the filter or finally function pointer, if present. Otherwise,
- // emit '1' to indicate a catch-all.
- const MCExpr *FilterOrFinally;
- if (const Function *F = Handler.FilterOrFinally)
- FilterOrFinally = create32bitRef(Asm->getSymbol(F));
- else
- FilterOrFinally = MCConstantExpr::create(1, Asm->OutContext);
+ // emit '0' to indicate a catch-all.
+ const Function *F = Handler.FilterOrFinally;
+ const MCExpr *FilterOrFinally =
+ create32bitRef(F ? Asm->getSymbol(F) : nullptr);
// Compute the recovery address, which is a block address or null.
const BlockAddress *BA = Handler.RecoverBA;