decl.c (grokfndecl): Set DECL_CONTEXT on parms.

        cp/:
        * decl.c (grokfndecl): Set DECL_CONTEXT on parms.
        (duplicate_decls): Adjust DECL_CONTEXT of newdecl's parms.
        * pt.c (check_explicit_specialization): Likewise.
        (tsubst_copy) [PARM_DECL]: Return a dummy parm if we don't have a
        local specialization.
        * tree.c (cp_tree_equal) [PARM_DECL]: Check type and index, not name.
        * decl2.c (parm_index): New fn.
        * semantics.c (finish_decltype_type): Don't use describable_type.
        * mangle.c (write_expression): Likewise.  Mangle ALIGNOF_EXPR.
        Give a sorry for unsupported codes rather than crash.  Mangle
        conversions with other than 1 operand.  New mangling for PARM_DECL.
        * operators.def (ALIGNOF_EXPR): Mangle as az.
  
        * include/demangle.h (enum demangle_component_type): Add
        DEMANGLE_COMPONENT_FUNCTION_PARAM.
        * libiberty/cp-demangle.c (d_make_function_param): new fn.
        (cplus_demangle_mangled_name): Work around abi v2 bug.
        (d_expr_primary): Likewise.
        (cplus_demangle_operators): Add alignof ops.
        (d_expression): Handle function parameters and conversions
        with other than 1 operand.
        (d_print_comp): Handle function parameters.  Fix bug with
        function used in type of function.

From-SVN: r144924

1 files changed, 11 insertions, 7 deletions

diff --git a/libiberty/testsuite/demangle-expected b/libiberty/testsuite/demangle-expected
index d9efbc0..cded6b5 100644
--- a/libiberty/testsuite/demangle-expected
+++ b/libiberty/testsuite/demangle-expected
@@ -3723,7 +3723,7 @@ foo<int (*) [3]>
 # This used to crash the demangler--PR 16240
 --format=gnu-v3 --no-params
 _ZN13PatternDriver23StringScalarDeleteValueC1ERKNS_25ConflateStringScalarValueERKNS_25AbstractStringScalarValueERKNS_12TemplateEnumINS_12pdcomplementELZNS_16complement_namesEELZNS_14COMPLEMENTENUMEEEE
-_ZN13PatternDriver23StringScalarDeleteValueC1ERKNS_25ConflateStringScalarValueERKNS_25AbstractStringScalarValueERKNS_12TemplateEnumINS_12pdcomplementELZNS_16complement_namesEELZNS_14COMPLEMENTENUMEEEE
+PatternDriver::StringScalarDeleteValue::StringScalarDeleteValue(PatternDriver::ConflateStringScalarValue const&, PatternDriver::AbstractStringScalarValue const&, PatternDriver::TemplateEnum<PatternDriver::pdcomplement, PatternDriver::complement_names, PatternDriver::COMPLEMENTENUM> const&)
 PatternDriver::StringScalarDeleteValue::StringScalarDeleteValue
 #
 # This used to cause the demangler to walk into undefined memory--PR 22268
@@ -3884,12 +3884,12 @@ _ZGr32_java$Sutil$Siso4217$_properties
 java resource java/util/iso4217.properties
 # decltype/param placeholder test
 --format=gnu-v3
-_Z3addIidEDTplsTT_sTT0_ES0_S1_
-decltype ((int)+(double)) add<int, double>(int, double)
+_Z3addIidEDTplfp_fp0_ET_T0_
+decltype ((parm#1)+(parm#2)) add<int, double>(int, double)
 # decltype/fn call test
 --format=gnu-v3
-_Z4add3IidEDTclL_Z1gEsTT_sTT0_EES0_S1_
-decltype (g(int, double)) add3<int, double>(int, double)
+_Z4add3IidEDTclL_Z1gEfp_fp0_EET_T0_
+decltype (g(parm#1, parm#2)) add3<int, double>(int, double)
 # new (2008) built in types test
 --format=gnu-v3
 _Z1fDfDdDeDhDsDi
@@ -3900,5 +3900,9 @@ _Z1fIIPiPfPdEEvDpT_
 void f<int*, float*, double*>(int*, float*, double*)
 # '.' test
 --format=gnu-v3
-_Z1hI1AIiEdEDTcldtsTT_1gIT0_EEES2_S3_
-decltype (((A<int>).(g<double>))()) h<A<int>, double>(A<int>, double)
+_Z1hI1AIiEdEDTcldtfp_1gIT0_EEET_S2_
+decltype (((parm#1).(g<double>))()) h<A<int>, double>(A<int>, double)
+# test for typed function in decltype
+--format=gnu-v3
+_ZN1AIiE1jIiEEDTplfp_clL_Z1xvEEET_
+decltype ((parm#1)+((x())())) A<int>::j<int>(int)