[demangler] Enhance demangling in llvm-cxxfilt for fixed-point types. #114257
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@llvm/pr-subscribers-libcxxabi Author: None (c8ef) ChangesThis patch adds support for fixed-point type in demanger. Closes #114090. Full diff: https://github.com/llvm/llvm-project/pull/114257.diff 3 Files Affected:
diff --git a/libcxxabi/src/demangle/ItaniumDemangle.h b/libcxxabi/src/demangle/ItaniumDemangle.h
index 501d0b6fdfcd16..52755e6f851032 100644
--- a/libcxxabi/src/demangle/ItaniumDemangle.h
+++ b/libcxxabi/src/demangle/ItaniumDemangle.h
@@ -4331,6 +4331,101 @@ Node *AbstractManglingParser<Derived, Alloc>::parseType() {
return nullptr;
return make<BinaryFPType>(DimensionNumber);
}
+ // ::= [DS] DA # N1169 fixed-point [_Sat] T _Accum
+ // ::= [DS] DR # N1169 fixed-point [_Sat] T _Frac
+ // <fixed-point-size>
+ // ::= s # short
+ // ::= t # unsigned short
+ // ::= i # plain
+ // ::= j # unsigned
+ // ::= l # long
+ // ::= m # unsigned long
+ case 'A': {
+ char c = look(2);
+ First += 3;
+ switch (c) {
+ case 's':
+ return make<NameType>("short _Accum");
+ case 't':
+ return make<NameType>("unsigned short _Accum");
+ case 'i':
+ return make<NameType>("_Accum");
+ case 'j':
+ return make<NameType>("unsigned _Accum");
+ case 'l':
+ return make<NameType>("long _Accum");
+ case 'm':
+ return make<NameType>("unsigned long _Accum");
+ default:
+ return nullptr;
+ }
+ }
+ case 'R': {
+ char c = look(2);
+ First += 3;
+ switch (c) {
+ case 's':
+ return make<NameType>("short _Fract");
+ case 't':
+ return make<NameType>("unsigned short _Fract");
+ case 'i':
+ return make<NameType>("_Fract");
+ case 'j':
+ return make<NameType>("unsigned _Fract");
+ case 'l':
+ return make<NameType>("long _Fract");
+ case 'm':
+ return make<NameType>("unsigned long _Fract");
+ default:
+ return nullptr;
+ }
+ }
+ case 'S': {
+ First += 2;
+ if (look() != 'D')
+ return nullptr;
+ if (look(1) == 'A') {
+ char c = look(2);
+ First += 3;
+ switch (c) {
+ case 's':
+ return make<NameType>("_Sat short _Accum");
+ case 't':
+ return make<NameType>("_Sat unsigned short _Accum");
+ case 'i':
+ return make<NameType>("_Sat _Accum");
+ case 'j':
+ return make<NameType>("_Sat unsigned _Accum");
+ case 'l':
+ return make<NameType>("_Sat long _Accum");
+ case 'm':
+ return make<NameType>("_Sat unsigned long _Accum");
+ default:
+ return nullptr;
+ }
+ }
+ if (look(1) == 'R') {
+ char c = look(2);
+ First += 3;
+ switch (c) {
+ case 's':
+ return make<NameType>("_Sat short _Fract");
+ case 't':
+ return make<NameType>("_Sat unsigned short _Fract");
+ case 'i':
+ return make<NameType>("_Sat _Fract");
+ case 'j':
+ return make<NameType>("_Sat unsigned _Fract");
+ case 'l':
+ return make<NameType>("_Sat long _Fract");
+ case 'm':
+ return make<NameType>("_Sat unsigned long _Fract");
+ default:
+ return nullptr;
+ }
+ }
+ return nullptr;
+ }
// ::= DB <number> _ # C23 signed _BitInt(N)
// ::= DB <instantiation-dependent expression> _ # C23 signed _BitInt(N)
// ::= DU <number> _ # C23 unsigned _BitInt(N)
diff --git a/llvm/include/llvm/Demangle/ItaniumDemangle.h b/llvm/include/llvm/Demangle/ItaniumDemangle.h
index 56ff3cfb148f09..3dfe838bf5fd2d 100644
--- a/llvm/include/llvm/Demangle/ItaniumDemangle.h
+++ b/llvm/include/llvm/Demangle/ItaniumDemangle.h
@@ -4331,6 +4331,101 @@ Node *AbstractManglingParser<Derived, Alloc>::parseType() {
return nullptr;
return make<BinaryFPType>(DimensionNumber);
}
+ // ::= [DS] DA # N1169 fixed-point [_Sat] T _Accum
+ // ::= [DS] DR # N1169 fixed-point [_Sat] T _Frac
+ // <fixed-point-size>
+ // ::= s # short
+ // ::= t # unsigned short
+ // ::= i # plain
+ // ::= j # unsigned
+ // ::= l # long
+ // ::= m # unsigned long
+ case 'A': {
+ char c = look(2);
+ First += 3;
+ switch (c) {
+ case 's':
+ return make<NameType>("short _Accum");
+ case 't':
+ return make<NameType>("unsigned short _Accum");
+ case 'i':
+ return make<NameType>("_Accum");
+ case 'j':
+ return make<NameType>("unsigned _Accum");
+ case 'l':
+ return make<NameType>("long _Accum");
+ case 'm':
+ return make<NameType>("unsigned long _Accum");
+ default:
+ return nullptr;
+ }
+ }
+ case 'R': {
+ char c = look(2);
+ First += 3;
+ switch (c) {
+ case 's':
+ return make<NameType>("short _Fract");
+ case 't':
+ return make<NameType>("unsigned short _Fract");
+ case 'i':
+ return make<NameType>("_Fract");
+ case 'j':
+ return make<NameType>("unsigned _Fract");
+ case 'l':
+ return make<NameType>("long _Fract");
+ case 'm':
+ return make<NameType>("unsigned long _Fract");
+ default:
+ return nullptr;
+ }
+ }
+ case 'S': {
+ First += 2;
+ if (look() != 'D')
+ return nullptr;
+ if (look(1) == 'A') {
+ char c = look(2);
+ First += 3;
+ switch (c) {
+ case 's':
+ return make<NameType>("_Sat short _Accum");
+ case 't':
+ return make<NameType>("_Sat unsigned short _Accum");
+ case 'i':
+ return make<NameType>("_Sat _Accum");
+ case 'j':
+ return make<NameType>("_Sat unsigned _Accum");
+ case 'l':
+ return make<NameType>("_Sat long _Accum");
+ case 'm':
+ return make<NameType>("_Sat unsigned long _Accum");
+ default:
+ return nullptr;
+ }
+ }
+ if (look(1) == 'R') {
+ char c = look(2);
+ First += 3;
+ switch (c) {
+ case 's':
+ return make<NameType>("_Sat short _Fract");
+ case 't':
+ return make<NameType>("_Sat unsigned short _Fract");
+ case 'i':
+ return make<NameType>("_Sat _Fract");
+ case 'j':
+ return make<NameType>("_Sat unsigned _Fract");
+ case 'l':
+ return make<NameType>("_Sat long _Fract");
+ case 'm':
+ return make<NameType>("_Sat unsigned long _Fract");
+ default:
+ return nullptr;
+ }
+ }
+ return nullptr;
+ }
// ::= DB <number> _ # C23 signed _BitInt(N)
// ::= DB <instantiation-dependent expression> _ # C23 signed _BitInt(N)
// ::= DU <number> _ # C23 unsigned _BitInt(N)
diff --git a/llvm/unittests/Demangle/PartialDemangleTest.cpp b/llvm/unittests/Demangle/PartialDemangleTest.cpp
index 60193cdf9e1ace..9cb26c47d8f243 100644
--- a/llvm/unittests/Demangle/PartialDemangleTest.cpp
+++ b/llvm/unittests/Demangle/PartialDemangleTest.cpp
@@ -16,45 +16,70 @@ struct ChoppedName {
};
static ChoppedName NamesToTest[] = {
- {"_Z1fv", "", "f", "", "()"},
- {"_ZN1a1b1cIiiiEEvm", "a::b", "c", "void", "(unsigned long)"},
- {"_ZZ5OuterIiEivEN5Inner12inner_memberEv",
- "int Outer<int>()::Inner", "inner_member", "", "()"},
- {"_Z1fIiEPFvvEv", "", "f", "void (*)()", "()"},
- {"_ZN1S1fIiEEvv", "S", "f", "void", "()"},
-
- // Call operator for a lambda in f().
- {"_ZZ1fvENK3$_0clEi", "f()::$_0", "operator()", "", "(int)"},
-
- // A call operator for a lambda in a lambda in f().
- {"_ZZZ1fvENK3$_0clEvENKUlvE_clEv",
- "f()::$_0::operator()() const::'lambda'()", "operator()", "", "()"},
-
- {"_ZZN1S1fEiiEd0_NKUlvE_clEv",
- "S::f(int, int)::'lambda'()", "operator()", "", "()"},
-
- {"_ZN1Scv7MuncherIJDpPT_EEIJFivEA_iEEEv",
- "S", "operator Muncher<int (*)(), int (*) []>", "", "()"},
-
- // Attributes.
- {"_ZN5test4IdE1fEUa9enable_ifIXeqfL0p_Li1EEXeqfL0p0_Li2EEEi",
- "test4<double>", "f", "", "(int)"},
- {"_ZN1SC2B8ctor_tagEv", "S", "S", "", "()"},
- {"_ZN1S1fB4MERPIiEEvv", "S", "f", "void", "()"},
-
- {"_ZNSsC1EmcRKSaIcE",
- "std::basic_string<char, std::char_traits<char>, std::allocator<char>>",
- "basic_string", "", "(unsigned long, char, std::allocator<char> const&)"},
- {"_ZNSsixEm", "std::string", "operator[]", "", "(unsigned long)"},
- {"_ZSt17__throw_bad_allocv", "std", "__throw_bad_alloc", "", "()"},
-
- {"_ZN1AI1BEC2Ev", "A<B>", "A", "", "()"},
- {"_ZN1AI1BED2Ev", "A<B>", "~A", "", "()"},
- {"_ZN1AI1BECI24BaseEi", "A<B>", "A", "", "(int)"},
- {"_ZNKR1AI1BE1fIiEEiv", "A<B>", "f", "int", "()"},
-
- {"_ZN1SIJicfEE3mfnIJjcdEEEvicfDpT_", "S<int, char, float>",
- "mfn", "void", "(int, char, float, unsigned int, char, double)"},
+ {"_Z1fv", "", "f", "", "()"},
+ {"_ZN1a1b1cIiiiEEvm", "a::b", "c", "void", "(unsigned long)"},
+ {"_ZZ5OuterIiEivEN5Inner12inner_memberEv", "int Outer<int>()::Inner",
+ "inner_member", "", "()"},
+ {"_Z1fIiEPFvvEv", "", "f", "void (*)()", "()"},
+ {"_ZN1S1fIiEEvv", "S", "f", "void", "()"},
+
+ // Call operator for a lambda in f().
+ {"_ZZ1fvENK3$_0clEi", "f()::$_0", "operator()", "", "(int)"},
+
+ // A call operator for a lambda in a lambda in f().
+ {"_ZZZ1fvENK3$_0clEvENKUlvE_clEv",
+ "f()::$_0::operator()() const::'lambda'()", "operator()", "", "()"},
+
+ {"_ZZN1S1fEiiEd0_NKUlvE_clEv", "S::f(int, int)::'lambda'()", "operator()",
+ "", "()"},
+
+ {"_ZN1Scv7MuncherIJDpPT_EEIJFivEA_iEEEv", "S",
+ "operator Muncher<int (*)(), int (*) []>", "", "()"},
+
+ // Attributes.
+ {"_ZN5test4IdE1fEUa9enable_ifIXeqfL0p_Li1EEXeqfL0p0_Li2EEEi",
+ "test4<double>", "f", "", "(int)"},
+ {"_ZN1SC2B8ctor_tagEv", "S", "S", "", "()"},
+ {"_ZN1S1fB4MERPIiEEvv", "S", "f", "void", "()"},
+
+ {"_ZNSsC1EmcRKSaIcE",
+ "std::basic_string<char, std::char_traits<char>, std::allocator<char>>",
+ "basic_string", "", "(unsigned long, char, std::allocator<char> const&)"},
+ {"_ZNSsixEm", "std::string", "operator[]", "", "(unsigned long)"},
+ {"_ZSt17__throw_bad_allocv", "std", "__throw_bad_alloc", "", "()"},
+
+ {"_ZN1AI1BEC2Ev", "A<B>", "A", "", "()"},
+ {"_ZN1AI1BED2Ev", "A<B>", "~A", "", "()"},
+ {"_ZN1AI1BECI24BaseEi", "A<B>", "A", "", "(int)"},
+ {"_ZNKR1AI1BE1fIiEEiv", "A<B>", "f", "int", "()"},
+
+ {"_ZN1SIJicfEE3mfnIJjcdEEEvicfDpT_", "S<int, char, float>", "mfn", "void",
+ "(int, char, float, unsigned int, char, double)"},
+
+ {"_Z1fDAs", "", "f", "", "(short _Accum)"},
+ {"_Z1fDAt", "", "f", "", "(unsigned short _Accum)"},
+ {"_Z1fDAi", "", "f", "", "(_Accum)"},
+ {"_Z1fDAj", "", "f", "", "(unsigned _Accum)"},
+ {"_Z1fDAl", "", "f", "", "(long _Accum)"},
+ {"_Z1fDAm", "", "f", "", "(unsigned long _Accum)"},
+ {"_Z1fDRs", "", "f", "", "(short _Fract)"},
+ {"_Z1fDRt", "", "f", "", "(unsigned short _Fract)"},
+ {"_Z1fDRi", "", "f", "", "(_Fract)"},
+ {"_Z1fDRj", "", "f", "", "(unsigned _Fract)"},
+ {"_Z1fDRl", "", "f", "", "(long _Fract)"},
+ {"_Z1fDRm", "", "f", "", "(unsigned long _Fract)"},
+ {"_Z1fDSDAs", "", "f", "", "(_Sat short _Accum)"},
+ {"_Z1fDSDAt", "", "f", "", "(_Sat unsigned short _Accum)"},
+ {"_Z1fDSDAi", "", "f", "", "(_Sat _Accum)"},
+ {"_Z1fDSDAj", "", "f", "", "(_Sat unsigned _Accum)"},
+ {"_Z1fDSDAl", "", "f", "", "(_Sat long _Accum)"},
+ {"_Z1fDSDAm", "", "f", "", "(_Sat unsigned long _Accum)"},
+ {"_Z1fDSDRs", "", "f", "", "(_Sat short _Fract)"},
+ {"_Z1fDSDRt", "", "f", "", "(_Sat unsigned short _Fract)"},
+ {"_Z1fDSDRi", "", "f", "", "(_Sat _Fract)"},
+ {"_Z1fDSDRj", "", "f", "", "(_Sat unsigned _Fract)"},
+ {"_Z1fDSDRl", "", "f", "", "(_Sat long _Fract)"},
+ {"_Z1fDSDRm", "", "f", "", "(_Sat unsigned long _Fract)"},
};
TEST(PartialDemanglerTest, TestNameChopping) {
|
PiJoules
approved these changes
Oct 30, 2024
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This patch adds support for fixed-point type in demanger.
Closes #114090.