[PATCH] D60446: Check a symbol variant exists before creation in AsmParser.
Brandon Jones via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Tue Apr 9 02:38:09 PDT 2019
BrandonTJones created this revision.
BrandonTJones added reviewers: andreadb, grosbach.
Herald added a subscriber: hiraditya.
Herald added a project: LLVM.
Check that the variant of the symbol is not empty before attempting to to treat it as the symbol name.
Repository:
rL LLVM
https://reviews.llvm.org/D60446
Files:
llvm/lib/MC/MCParser/AsmParser.cpp
Index: llvm/lib/MC/MCParser/AsmParser.cpp
===================================================================
--- llvm/lib/MC/MCParser/AsmParser.cpp
+++ llvm/lib/MC/MCParser/AsmParser.cpp
@@ -1115,7 +1115,7 @@
// Lookup the symbol variant if used.
if (!Split.second.empty()) {
Variant = MCSymbolRefExpr::getVariantKindForName(Split.second);
- if (Variant != MCSymbolRefExpr::VK_Invalid) {
+ if (Variant != MCSymbolRefExpr::VK_Invalid && !Split.first.empty()) {
SymbolName = Split.first;
} else if (MAI.doesAllowAtInName() && !MAI.useParensForSymbolVariant()) {
Variant = MCSymbolRefExpr::VK_None;
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