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llvm-project/llvm/test/Demangle/invalid-manglings.test

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[MS Demangler] Add a regression test for an invalid mangled name. llvm-svn: 349168
2018-12-15 01:59:27 +08:00
; Run llvm-undname with invalid inputs and make sure it doesn't crash.
; RUN: llvm-undname < %s 2>&1 | FileCheck %s
?ff@@$$J0YAXAU?$AS_@$0A@PEAU?$AS_@$0A@H@__clang@@@__clang@@@Z
; CHECK: ?ff@@$$J0YAXAU?$AS_@$0A@PEAU?$AS_@$0A@H@__clang@@@__clang@@@Z
; CHECK-NEXT: error: Invalid mangled name
[MS Demangler] Fail gracefully on invalid pointer types. Once we detect a 'P', we know we a pointer type is upcoming, so we make some assumptions about the output that follows. If those assumptions didn't hold, we would assert. Instead, we should fail gracefully and propagate the error up. llvm-svn: 349169
2018-12-15 02:10:13 +08:00
?f0@@YAXPEU?$AS_@$00$$CAD@__clang@@@Z
; CHECK-EMPTY:
; CHECK-NEXT: ?f0@@YAXPEU?$AS_@$00$$CAD@__clang@@@Z
llvm-undname: Fix a crash-on-invalid Found by oss-fuzz, fixes issues 12435 and 12438 on oss-fuzz. Differential Revision: https://reviews.llvm.org/D60202 llvm-svn: 357646
2019-04-04 07:15:56 +08:00
; CHECK-NEXT: error: Invalid mangled name
?@@8
; CHECK-EMPTY:
; CHECK-NEXT: ?@@8
; CHECK-NEXT: error: Invalid mangled name
llvm-undname: Fix an assert-on-invalid Found by oss-fuzz, fixes issues 12428 and 12429 on oss-fuzz. Differential Revision: https://reviews.llvm.org/D60204 llvm-svn: 357647
2019-04-04 07:19:39 +08:00
??
; CHECK-EMPTY:
; CHECK-NEXT: ??
; CHECK-NEXT: error: Invalid mangled name
llvm-undame: Fix an assert-on-invalid Found by oss-fuzz, fixes issue 12432 on os-fuzz. Differential Revision: https://reviews.llvm.org/D60206 llvm-svn: 357648
2019-04-04 07:23:32 +08:00
??0@
; CHECK-EMPTY:
; CHECK-NEXT: ??0@
; CHECK-NEXT: error: Invalid mangled name
llvm-undname: Fix a crash-on-invalid Found by oss-fuzz, fixes issue 13260 on oss-fuzz. Differential Revision: https://reviews.llvm.org/D60207 llvm-svn: 357649
2019-04-04 07:27:18 +08:00
? @@ YC@
; CHECK-EMPTY:
; CHECK-NEXT: ? @@ YC@
; CHECK-NEXT: error: Invalid mangled name
llvm-undname: Fix more crashes and asserts on invalid inputs For functions whose callers don't check that enough input is present, add checks at the start of the function that enough input is there and set Error otherwise. For functions that return AST objects, return nullptr instead of incomplete AST objects with nullptr fields if an error occurred during the function. Introduce a new function demangleDeclarator() for the sequence demangleFullyQualifiedSymbolName(); demangleEncodedSymbol() and use it in the two places that had this sequence. Let this new function check that ConversionOperatorIdentifiers have a valid TargetType. Some of the bad inputs found by oss-fuzz, others by inspection. Differential Revision: https://reviews.llvm.org/D60354 llvm-svn: 357936
2019-04-09 03:46:53 +08:00
??B@$$J0
; CHECK-EMPTY:
; CHECK-NEXT: ??B@$$J0
; CHECK-NEXT: error: Invalid mangled name
??B@4
; CHECK-EMPTY:
; CHECK-NEXT: ??B@4
; CHECK-NEXT: error: Invalid mangled name
?A?@?@???B@4D
; CHECK-EMPTY:
; CHECK-NEXT: ?A?@?@???B@4D
; CHECK-NEXT: error: Invalid mangled name
?A?@?@???B@4DD
; CHECK-EMPTY:
; CHECK-NEXT: ?A?@?@???B@4DD
; CHECK-NEXT: error: Invalid mangled name
??$A@P15@
; CHECK-EMPTY:
; CHECK-NEXT: ??$A@P15@
; CHECK-NEXT: error: Invalid mangled name
??$A@P
; CHECK-EMPTY:
; CHECK-NEXT: ??$A@P
; CHECK-NEXT: error: Invalid mangled name
?A@@
; CHECK-EMPTY:
; CHECK-NEXT: ?A@@
; CHECK-NEXT: error: Invalid mangled name
?A@@P
; CHECK-EMPTY:
; CHECK-NEXT: ?A@@P
; CHECK-NEXT: error: Invalid mangled name
?A@@4PQA@@
; CHECK-EMPTY:
; CHECK-NEXT: ?A@@4PQA@@
; CHECK-NEXT: error: Invalid mangled name
??__E
; CHECK-EMPTY:
; CHECK-NEXT: ??__E
; CHECK-NEXT: error: Invalid mangled name
??__E@@
; CHECK-EMPTY:
; CHECK-NEXT: ??__E@@
; CHECK-NEXT: error: Invalid mangled name
??__E?Foo@@0HA@@
; CHECK-EMPTY:
; CHECK-NEXT: ??__E?Foo@@0HA@@
; CHECK-NEXT: error: Invalid mangled name
llvm-undname: Fix another crash-on-invalid This fixes a regression from https://reviews.llvm.org/D60354. We used to SymbolNode *Symbol = demangleEncodedSymbol(MangledName, QN); if (Symbol) { Symbol->Name = QN; } but changed that to SymbolNode *Symbol = demangleEncodedSymbol(MangledName, QN); if (Error) return nullptr; Symbol->Name = QN; and one branch somewhere returned a nullptr without setting Error. Looking at the code changed in r340083 and r340710 that branch looks like a remnant from an earlier attempt to demangle RTTI descriptors that has since been rewritten -- so just remove this branch. It shouldn't change behavior for correctly mangled symbols. llvm-svn: 358112
2019-04-11 01:31:34 +08:00
??8@8
; CHECK-EMPTY:
; CHECK-NEXT: ??8@8
; CHECK-NEXT: error: Invalid mangled name
llvm-undname: Fix crash on invalid name in a template parameter pointer to member arg Found by oss-fuzz. llvm-svn: 358234
2019-04-12 06:23:35 +08:00
?B@?$?K$H?
; CHECK-EMPTY:
; CHECK-NEXT: ?B@?$?K$H?
; CHECK-NEXT: error: Invalid mangled name
llvm-undname: Fix crash on incomplete virtual this adjusts Found by oss-fuzz. Also remove an else-after-return, this part has no behavior change. llvm-svn: 358237
2019-04-12 06:47:18 +08:00
??C@$
; CHECK-EMPTY:
; CHECK-NEXT: ??C@$
; CHECK-NEXT: error: Invalid mangled name
llvm-undname: Don't crash on incomplete enum tag manglings Found by inspection. llvm-svn: 358238
2019-04-12 06:59:25 +08:00
?x@@3PAW
; CHECK-EMPTY:
; CHECK-NEXT: ?x@@3PAW
; CHECK-NEXT: error: Invalid mangled name
llvm-undname: Fix out-of-bounds read on invalid intrinsic function code Found by inspection. llvm-svn: 358239
2019-04-12 07:11:33 +08:00
??}
; CHECK-EMPTY:
; CHECK-NEXT: ??}
; CHECK-NEXT: error: Invalid mangled name