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path: root/llvm/lib/Demangle/MicrosoftDemangle.cpp
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* Resubmit r338340 "[MS Demangler] Better demangling of template arguments."Zachary Turner2018-07-311-45/+87
| | | | | | This broke the build with GCC, but has since been fixed. llvm-svn: 338403
* Revert r338340 "[MS Demangler] Better demangling of template arguments."Reid Kleckner2018-07-311-87/+46
| | | | | | Breaks the build with GCC, apparently. llvm-svn: 338344
* [MS Demangler] Better demangling of template arguments.Zachary Turner2018-07-311-46/+87
| | | | | | | | | | | This patch fixes demangling of template aliases as template-template arguments, and also fixes function pointers and references as not type template parameters. All of these can be properly demangled now, so I've ported over the test clang/test/CodeGenCXX/ms-template-callbacks.cpp. All of these tests pass llvm-svn: 338340
* [MS Demangler] Add rudimentary C++11 SupportZachary Turner2018-07-301-48/+173
| | | | | | | | | | | | | | This patch adds support for demangling r-value references, new operators such as the ""_foo operator, lambdas, alias types, nullptr_t, and various other C++11'isms. There is 1 failing test remaining in this file, which appears to be related to back-referencing. This type of problem has the potential to get ugly so I'd rather fix it in a separate patch. Differential Revision: https://reviews.llvm.org/D50013 llvm-svn: 338324
* Try to fix build.Zachary Turner2018-07-301-5/+5
| | | | llvm-svn: 338227
* [MS Demangler] Demangle symbols in function scopes.Zachary Turner2018-07-301-12/+132
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are a couple of issues you run into when you start getting into more complex names, especially with regards to function local statics. When you've got something like: int x() { static int n = 0; return n; } Then this needs to demangle to something like int `int __cdecl x()'::`1'::n The nested mangled symbols (e.g. `int __cdecl x()` in the above example) also share state with regards to back-referencing, so we need to be able to re-use the demangler in the middle of demangling a symbol while sharing back-ref state. To make matters more complicated, there are a lot of ambiguities when demangling a symbol's qualified name, because a function local scope pattern (usually something like `?1??name?`) looks suspiciously like many other possible things that can occur, such as `?1` meaning the second back-ref and disambiguating these cases is rather interesting. The `?1?` in a local scope pattern is actually a special case of the more general pattern of `? + <encoded number> + ?`, where "encoded number" can itself have embedded `@` symbols, which is a common delimeter in mangled names. So we have to take care during the disambiguation, which is the reason for the overly complicated `isLocalScopePattern` function in this patch. I've added some pretty obnoxious tests to exercise all of this, which exposed several other problems related to back-referencing, so those are fixed here as well. Finally, I've uncommented some tests that were previously marked as `FIXME`, since now these work. Differential Revision: https://reviews.llvm.org/D49965 llvm-svn: 338226
* [MS Demangler] NFC - Remove state from Demangler class.Zachary Turner2018-07-291-152/+152
| | | | | | | | | | | We need to be able to initiate a nested demangling from inside of an "outer" demangling. These need to be able to share some state, such as back-references. As a result, we can't store things like the output stream or the mangled name in the Demangler class, since each demangling will have different values. So remove this state and pass it through the necessary methods. llvm-svn: 338219
* [MS Demangler] Refactor some of the name parsing code.Zachary Turner2018-07-281-181/+246
| | | | | | | | | | | | | | There are some very subtle differences between how one should parse symbol names and type names. They differ with respect to back-referencing, the set of legal values that can appear as the unqualified portion, and various other aspects. By separating the parsing code into separate paths, we can remove a lot of ambiguity during the demangling process, which is necessary for demangling more complicated things like function local statics, nested classes, and lambdas. llvm-svn: 338207
* Fix -Wsign-compare warning.Zachary Turner2018-07-261-1/+1
| | | | llvm-svn: 338078
* [MS Demangler] Properly handle function parameter back-refs.Zachary Turner2018-07-261-17/+56
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Properly demangle function parameter back-references. Previously we treated lists of function parameters and template parameters the same. There are some important differences with regards to back-references, and some less important differences regarding which characters can appear before or after the name. The important differences are that with a given type T, all instances of a function parameter list share the same global back-ref table. Specifically, if X and Y are function pointers, then there are 3 entities in the declaration X func(Y) which all affect and are affected by the master parameter back-ref table: 1) The parameter list of X's function type 2) the parameter list of func itself 3) The parameter list of Y's function type. The previous code would create a back-reference table that was local to a single parameter list, so it would not be shared across parameter lists. This was discovered when porting ms-back-references.test from clang's mangling tests. All of these tests should now pass with the new changes. In doing so, I split the function for parsing template and function parameters into two separate functions. This makes the template parameter list parsing code in particular very small and easy to understand now. Differential Revision: https://reviews.llvm.org/D49875 llvm-svn: 338075
* [MS Demangler] Print calling convention inside parentheses.Zachary Turner2018-07-261-35/+48
| | | | | | | | | | | | | | | For function pointers, we would print something like int __cdecl (*)(int) We need to move the calling convention inside, and print int (__cdecl *)(int) This patch implements this change for regular function pointers as well as member function pointers. llvm-svn: 338068
* [MS Demangler] Add ms-arg-qualifiers.testZachary Turner2018-07-261-2/+5
| | | | | | | | | | | This converts the arg qualifier mangling tests from clang/CodeGenCXX/mangle-ms-arg-qualifiers.cpp to demangling tests. Most tests already pass, so this patch doesn't come with any functional change, just the addition of new tests. The few tests that don't pass are left in with a FIXME label so that they don't run but serve as documentation about what still doesn't work. llvm-svn: 338067
* [MS Demangler] Demangle pointers to member functions.Zachary Turner2018-07-261-45/+91
| | | | | | | | | | | After this patch, we can now properly demangle pointers to member functions. The calling convention is located in the wrong place, but this will be fixed in a followup since it also affects non member function pointers. Differential Revision: https://reviews.llvm.org/D49639 llvm-svn: 338065
* [MS Demangler] Demangle data member pointers.Zachary Turner2018-07-261-155/+191
| | | | | | Differential Revision: https://reviews.llvm.org/D49630 llvm-svn: 338061
* [Demangle] Attempt to fix arena memory leakReid Kleckner2018-07-231-1/+3
| | | | llvm-svn: 337720
* Remove a superfluous semicolonMartin Storsjo2018-07-201-1/+1
| | | | llvm-svn: 337599
* [Demangler] Correctly factor in assignment when allocating.Zachary Turner2018-07-201-24/+29
| | | | | | | | | Incidentally all allocations that we currently perform were properly aligned, but this was only an accident. Thanks to Erik Pilkington for catching this. llvm-svn: 337596
* [Demangler] Add missing overridesBenjamin Kramer2018-07-201-3/+3
| | | | | | -Winconsistent-missing-override complains about this. llvm-svn: 337592
* Fix a few warnings and style issues in MS demangler.Zachary Turner2018-07-201-17/+24
| | | | | | Also remove a broken test case. llvm-svn: 337591
* Add a Microsoft Demangler.Zachary Turner2018-07-201-0/+1533
This adds initial support for a demangling library (LLVMDemangle) and tool (llvm-undname) for demangling Microsoft names. This doesn't cover 100% of cases and there are some known limitations which I intend to address in followup patches, at least until such time that we have (near) 100% test coverage matching up with all of the test cases in clang/test/CodeGenCXX/mangle-ms-*. Differential Revision: https://reviews.llvm.org/D49552 llvm-svn: 337584
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