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llvm-undname: Fix another crash-on-invalid found by oss-fuzz

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llvm-svn: 358363
This commit is contained in:
Nico Weber 2019-04-14 23:08:12 +00:00
parent 8335a271a1
commit 67b0012529
2 changed files with 9 additions and 1 deletions
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5
lib/Demangle/MicrosoftDemangle.cpp
View File

@ -654,7 +654,10 @@ Demangler::translateIntrinsicFunctionCode(char CH,
IdentifierNode *
Demangler::demangleFunctionIdentifierCode(StringView &MangledName,
FunctionIdentifierCodeGroup Group) {
assert(!MangledName.empty());
if (MangledName.empty()) {
Error = true;
return nullptr;
}
switch (Group) {
case FunctionIdentifierCodeGroup::Basic:
switch (char CH = MangledName.popFront()) {

5
test/Demangle/invalid-manglings.test
View File

@ -114,3 +114,8 @@
; CHECK-EMPTY:
; CHECK-NEXT: ??}
; CHECK-NEXT: error: Invalid mangled name
?foo@?$?_
; CHECK-EMPTY:
; CHECK-NEXT: ?foo@?$?_
; CHECK-NEXT: error: Invalid mangled name