Sync libiberty/ & include/ with GCC

Note this brings in the interface files for libcc1/G++ as well, which
we will be needing in GDB soon anyway.  That commit renamed a method
in the C interface and that required a small update to GDB's compile/
code, which I've included that in this patch to keep the tree
building.

include/ChangeLog:
2017-09-15  Pedro Alves  <palves@redhat.com>

	* ansidecl.h (DISABLE_COPY_AND_ASSIGN): New macro.

	2017-09-12  Jiong Wang  <jiong.wang@arm.com>

	* dwarf2.def (DW_CFA_AARCH64_negate_ra_state): New DW_CFA_DUP.
	* dwarf2.h (DW_CFA_DUP): New define.

	2017-08-21  Richard Biener  <rguenther@suse.de>

	* simple-object.h (simple_object_copy_lto_debug_sections): New
	function.

	2017-05-18  Martin Liska  <mliska@suse.cz>

	* ansidecl.h: Define CONSTEXPR macro.

	2017-05-24  Nathan Sidwell  <nathan@acm.org>

	* libiberty.h (ASTRDUP): Adjust cast to avoid warning.

	2017-01-30  Alexandre Oliva <aoliva@redhat.com>

	Introduce C++ support in libcc1.
	* gcc-c-fe.def (int_type_v0): Rename from...
	(int_type): ... this.  Introduce new version.
	(float_type_v0): Rename from...
	(float_type): ... this.  Introduce new version.
	(char_type): New.
	* gcc-c-interface.h (gcc_c_api_version): Add GCC_C_FE_VERSION_1.
	(gcc_type_array): Move...
	* gcc-interface.h: ... here.
	* gcc-cp-fe.def: New.
	* gcc-cp-interface.h: New.

	2016-04-29  Oleg Endo  <olegendo@gcc.gnu.org>

	* longlong.h (umul_ppmm): Remove SHMEDIA checks.
	(__umulsidi3, count_leading_zeros): Remove SHMEDIA implementations.

	2017-09-15  Yao Qi  <yao.qi@linaro.org>
	    Pedro Alves  <palves@redhat.com>

	* ansidecl.h (DISABLE_COPY_AND_ASSIGN): New macro.

	2017-09-12  Jiong Wang  <jiong.wang@arm.com>

	* dwarf2.def (DW_CFA_AARCH64_negate_ra_state): New DW_CFA_DUP.
	* dwarf2.h (DW_CFA_DUP): New define.

	2017-08-21  Richard Biener  <rguenther@suse.de>

	* simple-object.h (simple_object_copy_lto_debug_sections): New
	function.

	2017-05-18  Martin Liska  <mliska@suse.cz>

	* ansidecl.h: Define CONSTEXPR macro.

	2017-05-24  Nathan Sidwell  <nathan@acm.org>

	* libiberty.h (ASTRDUP): Adjust cast to avoid warning.

	2017-01-30  Alexandre Oliva <aoliva@redhat.com>

	Introduce C++ support in libcc1.
	* gcc-c-fe.def (int_type_v0): Rename from...
	(int_type): ... this.  Introduce new version.
	(float_type_v0): Rename from...
	(float_type): ... this.  Introduce new version.
	(char_type): New.
	* gcc-c-interface.h (gcc_c_api_version): Add GCC_C_FE_VERSION_1.
	(gcc_type_array): Move...
	* gcc-interface.h: ... here.
	* gcc-cp-fe.def: New.
	* gcc-cp-interface.h: New.

	2016-04-29  Oleg Endo  <olegendo@gcc.gnu.org>

	* longlong.h (umul_ppmm): Remove SHMEDIA checks.
	(__umulsidi3, count_leading_zeros): Remove SHMEDIA implementations.

libiberty/ChangeLog:
2017-09-15  Nathan Sidwell  <nathan@acm.org>

	PR demangler/82195
	* cp-demangle.c (d_name): Add 'toplevel' parm.  Pass to	...
	(d_local_name): ... here.  Parse trailing function args on nested
	local_name.
	(d_encoding, d_special_name, d_class_enum_type): Adjust d_name calls.
	* testsuite/demangle-expected: Add tests.

2017-09-15  Richard Biener  <rguenther@suse.de>

	PR lto/81968
	* simple-object-elf.c (simple_object_elf_copy_lto_debug_sections):
	Iterate marking dependent sections necessary.

2017-09-15  Nathan Sidwell  <nathan@acm.org>

	* cp-demangle.c (is_fnqual_component_type): Reimplement using
	FNQUAL_COMPONENT_CASE.
	(d_encoding): Hold bare_function_type in local var.
	(d_local_name): Build name in both cases and build result once.
	Collapse switch-if to single conditional.
	(d_local_name):

	* testsuite/demangle-expected: Realign blank lines with tests.

2017-09-12  Jiong Wang  <jiong.wang@arm.com>

	* dwarfnames.c (DW_CFA_DUP): New define.

gdb/ChangeLog:
2017-09-15  Pedro Alves  <palves@redhat.com>

	* compile/compile-c-types.c (convert_enum, convert_int)
	(convert_float): Adjust to refer to int_type_v0 and float_type_v0.

5 files changed, 179 insertions, 106 deletions

diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog
index 8c469710f8..7a49a6a139 100644
--- a/libiberty/ChangeLog
+++ b/libiberty/ChangeLog
@@ -1,3 +1,33 @@
+2017-09-15  Nathan Sidwell  <nathan@acm.org>
+
+	PR demangler/82195
+	* cp-demangle.c (d_name): Add 'toplevel' parm.  Pass to	...
+	(d_local_name): ... here.  Parse trailing function args on nested
+	local_name.
+	(d_encoding, d_special_name, d_class_enum_type): Adjust d_name calls.
+	* testsuite/demangle-expected: Add tests.
+
+2017-09-15  Richard Biener  <rguenther@suse.de>
+
+	PR lto/81968
+	* simple-object-elf.c (simple_object_elf_copy_lto_debug_sections):
+	Iterate marking dependent sections necessary.
+
+2017-09-15  Nathan Sidwell  <nathan@acm.org>
+
+	* cp-demangle.c (is_fnqual_component_type): Reimplement using
+	FNQUAL_COMPONENT_CASE.
+	(d_encoding): Hold bare_function_type in local var.
+	(d_local_name): Build name in both cases and build result once.
+	Collapse switch-if to single conditional.
+	(d_local_name): 
+
+	* testsuite/demangle-expected: Realign blank lines with tests.
+
+2017-09-12  Jiong Wang  <jiong.wang@arm.com>
+
+	* dwarfnames.c (DW_CFA_DUP): New define.
+
 2017-09-01  Martin Liska  <mliska@suse.cz>
 
 	* simple-object-elf.c (simple_object_elf_copy_lto_debug_sections):
diff --git a/libiberty/cp-demangle.c b/libiberty/cp-demangle.c
index 7b8d0b4cba..c3300528ff 100644
--- a/libiberty/cp-demangle.c
+++ b/libiberty/cp-demangle.c
@@ -425,7 +425,7 @@ is_ctor_dtor_or_conversion (struct demangle_component *);
 
 static struct demangle_component *d_encoding (struct d_info *, int);
 
-static struct demangle_component *d_name (struct d_info *);
+static struct demangle_component *d_name (struct d_info *, int);
 
 static struct demangle_component *d_nested_name (struct d_info *);
 
@@ -484,7 +484,7 @@ static struct demangle_component *d_expression (struct d_info *);
 
 static struct demangle_component *d_expr_primary (struct d_info *);
 
-static struct demangle_component *d_local_name (struct d_info *);
+static struct demangle_component *d_local_name (struct d_info *, int);
 
 static int d_discriminator (struct d_info *);
 
@@ -568,22 +568,6 @@ static int d_demangle_callback (const char *, int,
                                 demangle_callbackref, void *);
 static char *d_demangle (const char *, int, size_t *);
 
-/* True iff TYPE is a demangling component representing a
-   function-type-qualifier.  */
-
-static int
-is_fnqual_component_type (enum demangle_component_type type)
-{
-  return (type == DEMANGLE_COMPONENT_RESTRICT_THIS
-	  || type == DEMANGLE_COMPONENT_VOLATILE_THIS
-	  || type == DEMANGLE_COMPONENT_CONST_THIS
-	  || type == DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS
-	  || type == DEMANGLE_COMPONENT_TRANSACTION_SAFE
-	  || type == DEMANGLE_COMPONENT_NOEXCEPT
-	  || type == DEMANGLE_COMPONENT_THROW_SPEC
-	  || type == DEMANGLE_COMPONENT_REFERENCE_THIS);
-}
-
 #define FNQUAL_COMPONENT_CASE				\
     case DEMANGLE_COMPONENT_RESTRICT_THIS:		\
     case DEMANGLE_COMPONENT_VOLATILE_THIS:		\
@@ -594,6 +578,23 @@ is_fnqual_component_type (enum demangle_component_type type)
     case DEMANGLE_COMPONENT_NOEXCEPT:			\
     case DEMANGLE_COMPONENT_THROW_SPEC
 
+/* True iff TYPE is a demangling component representing a
+   function-type-qualifier.  */
+
+static int
+is_fnqual_component_type (enum demangle_component_type type)
+{
+  switch (type)
+    {
+    FNQUAL_COMPONENT_CASE:
+      return 1;
+    default:
+      break;
+    }
+  return 0;
+}
+
+
 #ifdef CP_DEMANGLE_DEBUG
 
 static void
@@ -1305,9 +1306,9 @@ d_encoding (struct d_info *di, int top_level)
     return d_special_name (di);
   else
     {
-      struct demangle_component *dc;
+      struct demangle_component *dc, *dcr;
 
-      dc = d_name (di);
+      dc = d_name (di, top_level);
 
       if (dc != NULL && top_level && (di->options & DMGL_PARAMS) == 0)
 	{
@@ -1327,8 +1328,6 @@ d_encoding (struct d_info *di, int top_level)
 	     which is local to a function.  */
 	  if (dc->type == DEMANGLE_COMPONENT_LOCAL_NAME)
 	    {
-	      struct demangle_component *dcr;
-
 	      dcr = d_right (dc);
 	      while (is_fnqual_component_type (dcr->type))
 		dcr = d_left (dcr);
@@ -1341,8 +1340,8 @@ d_encoding (struct d_info *di, int top_level)
       peek = d_peek_char (di);
       if (dc == NULL || peek == '\0' || peek == 'E')
 	return dc;
-      return d_make_comp (di, DEMANGLE_COMPONENT_TYPED_NAME, dc,
-			  d_bare_function_type (di, has_return_type (dc)));
+      dcr = d_bare_function_type (di, has_return_type (dc));
+      return d_make_comp (di, DEMANGLE_COMPONENT_TYPED_NAME, dc, dcr);
     }
 }
 
@@ -1384,7 +1383,7 @@ d_abi_tags (struct d_info *di, struct demangle_component *dc)
 */
 
 static struct demangle_component *
-d_name (struct d_info *di)
+d_name (struct d_info *di, int top_level)
 {
   char peek = d_peek_char (di);
   struct demangle_component *dc;
@@ -1395,7 +1394,7 @@ d_name (struct d_info *di)
       return d_nested_name (di);
 
     case 'Z':
-      return d_local_name (di);
+      return d_local_name (di, top_level);
 
     case 'U':
       return d_unqualified_name (di);
@@ -2080,11 +2079,11 @@ d_special_name (struct d_info *di)
 
 	case 'H':
 	  return d_make_comp (di, DEMANGLE_COMPONENT_TLS_INIT,
-			      d_name (di), NULL);
+			      d_name (di, 0), NULL);
 
 	case 'W':
 	  return d_make_comp (di, DEMANGLE_COMPONENT_TLS_WRAPPER,
-			      d_name (di), NULL);
+			      d_name (di, 0), NULL);
 
 	default:
 	  return NULL;
@@ -2095,11 +2094,12 @@ d_special_name (struct d_info *di)
       switch (d_next_char (di))
 	{
 	case 'V':
-	  return d_make_comp (di, DEMANGLE_COMPONENT_GUARD, d_name (di), NULL);
+	  return d_make_comp (di, DEMANGLE_COMPONENT_GUARD,
+			      d_name (di, 0), NULL);
 
 	case 'R':
 	  {
-	    struct demangle_component *name = d_name (di);
+	    struct demangle_component *name = d_name (di, 0);
 	    return d_make_comp (di, DEMANGLE_COMPONENT_REFTEMP, name,
 				d_number_component (di));
 	  }
@@ -2935,7 +2935,7 @@ d_bare_function_type (struct d_info *di, int has_return_type)
 static struct demangle_component *
 d_class_enum_type (struct d_info *di)
 {
-  return d_name (di);
+  return d_name (di, 0);
 }
 
 /* <array-type> ::= A <(positive dimension) number> _ <(element) type>
@@ -3568,9 +3568,10 @@ d_expr_primary (struct d_info *di)
 */
 
 static struct demangle_component *
-d_local_name (struct d_info *di)
+d_local_name (struct d_info *di, int top_level)
 {
   struct demangle_component *function;
+  struct demangle_component *name;
 
   if (! d_check_char (di, 'Z'))
     return NULL;
@@ -3585,13 +3586,10 @@ d_local_name (struct d_info *di)
       d_advance (di, 1);
       if (! d_discriminator (di))
 	return NULL;
-      return d_make_comp (di, DEMANGLE_COMPONENT_LOCAL_NAME, function,
-			  d_make_name (di, "string literal",
-				       sizeof "string literal" - 1));
+      name = d_make_name (di, "string literal", sizeof "string literal" - 1);
     }
   else
     {
-      struct demangle_component *name;
       int num = -1;
 
       if (d_peek_char (di) == 'd')
@@ -3603,22 +3601,36 @@ d_local_name (struct d_info *di)
 	    return NULL;
 	}
 
-      name = d_name (di);
-      if (name)
-	switch (name->type)
-	  {
-	    /* Lambdas and unnamed types have internal discriminators.  */
-	  case DEMANGLE_COMPONENT_LAMBDA:
-	  case DEMANGLE_COMPONENT_UNNAMED_TYPE:
-	    break;
-	  default:
-	    if (! d_discriminator (di))
-	      return NULL;
-	  }
+      name = d_name (di, 0);
+
+      if (name
+	  /* Lambdas and unnamed types have internal discriminators
+	     and are not functions.  */
+	  && name->type != DEMANGLE_COMPONENT_LAMBDA
+	  && name->type != DEMANGLE_COMPONENT_UNNAMED_TYPE)
+	{
+	  if (!top_level
+	      && d_peek_char (di) != 0 /* Not end of string.  */
+	      && d_peek_char (di) != 'E' /* Not end of nested encoding.  */
+	      && d_peek_char (di) != '_') /* Not discriminator.  */
+	    {
+	      struct demangle_component *args;
+
+	      args = d_bare_function_type (di, has_return_type (name));
+	      name = d_make_comp (di, DEMANGLE_COMPONENT_TYPED_NAME,
+				  name, args);
+	    }
+
+	  /* Read and ignore an optional discriminator.  */
+	  if (! d_discriminator (di))
+	    return NULL;
+	}
+
       if (num >= 0)
 	name = d_make_default_arg (di, num, name);
-      return d_make_comp (di, DEMANGLE_COMPONENT_LOCAL_NAME, function, name);
     }
+
+  return d_make_comp (di, DEMANGLE_COMPONENT_LOCAL_NAME, function, name);
 }
 
 /* <discriminator> ::= _ <number>    # when number < 10
diff --git a/libiberty/dwarfnames.c b/libiberty/dwarfnames.c
index e58d03c3a3..dacd78dbaa 100644
--- a/libiberty/dwarfnames.c
+++ b/libiberty/dwarfnames.c
@@ -75,6 +75,7 @@ Boston, MA 02110-1301, USA.  */
 #define DW_ATE(name, value) case name: return # name ;
 #define DW_ATE_DUP(name, value)
 #define DW_CFA(name, value) case name: return # name ;
+#define DW_CFA_DUP(name, value)
 #define DW_IDX(name, value) case name: return # name ;
 #define DW_IDX_DUP(name, value)
 
@@ -105,5 +106,6 @@ Boston, MA 02110-1301, USA.  */
 #undef DW_ATE
 #undef DW_ATE_DUP
 #undef DW_CFA
+#undef DW_CFA_DUP
 #undef DW_IDX
 #undef DW_IDX_DUP
diff --git a/libiberty/simple-object-elf.c b/libiberty/simple-object-elf.c
index 6774eb273c..7eb3df8566 100644
--- a/libiberty/simple-object-elf.c
+++ b/libiberty/simple-object-elf.c
@@ -1158,70 +1158,84 @@ simple_object_elf_copy_lto_debug_sections (simple_object_read *sobj,
 
   /* Mark sections as preserved that are required by to be preserved
      sections.  */
-  for (i = 1; i < shnum; ++i)
+  int changed;
+  do
     {
-      unsigned char *shdr;
-      unsigned int sh_type, sh_info, sh_link;
-      off_t offset;
-      off_t length;
-
-      shdr = shdrs + (i - 1) * shdr_size;
-      sh_type = ELF_FETCH_FIELD (type_functions, ei_class, Shdr,
-				 shdr, sh_type, Elf_Word);
-      sh_info = ELF_FETCH_FIELD (type_functions, ei_class, Shdr,
-				 shdr, sh_info, Elf_Word);
-      sh_link = ELF_FETCH_FIELD (type_functions, ei_class, Shdr,
-				 shdr, sh_link, Elf_Word);
-      if (sh_type == SHT_GROUP)
+      changed = 0;
+      for (i = 1; i < shnum; ++i)
 	{
-	  /* Mark groups containing copied sections.  */
-	  unsigned entsize = ELF_FETCH_FIELD (type_functions, ei_class, Shdr,
-					      shdr, sh_entsize, Elf_Addr);
-	  unsigned char *ent, *buf;
-	  int keep = 0;
-	  offset = ELF_FETCH_FIELD (type_functions, ei_class, Shdr,
-				    shdr, sh_offset, Elf_Addr);
-	  length = ELF_FETCH_FIELD (type_functions, ei_class, Shdr,
-				    shdr, sh_size, Elf_Addr);
-	  buf = XNEWVEC (unsigned char, length);
-	  if (!simple_object_internal_read (sobj->descriptor,
-					    sobj->offset + offset, buf,
-					    (size_t) length, &errmsg, err))
+	  unsigned char *shdr;
+	  unsigned int sh_type, sh_info, sh_link;
+	  off_t offset;
+	  off_t length;
+
+	  shdr = shdrs + (i - 1) * shdr_size;
+	  sh_type = ELF_FETCH_FIELD (type_functions, ei_class, Shdr,
+				     shdr, sh_type, Elf_Word);
+	  sh_info = ELF_FETCH_FIELD (type_functions, ei_class, Shdr,
+				     shdr, sh_info, Elf_Word);
+	  sh_link = ELF_FETCH_FIELD (type_functions, ei_class, Shdr,
+				     shdr, sh_link, Elf_Word);
+	  if (sh_type == SHT_GROUP)
 	    {
-	      XDELETEVEC (buf);
-	      XDELETEVEC (names);
-	      XDELETEVEC (shdrs);
-	      return errmsg;
-	    }
-	  for (ent = buf + entsize; ent < buf + length; ent += entsize)
-	    {
-	      unsigned sec = type_functions->fetch_Elf_Word (ent);
-	      if (pfnret[sec - 1] == 0)
-		keep = 1;
+	      /* Mark groups containing copied sections.  */
+	      unsigned entsize = ELF_FETCH_FIELD (type_functions, ei_class,
+						  Shdr, shdr, sh_entsize,
+						  Elf_Addr);
+	      unsigned char *ent, *buf;
+	      int keep = 0;
+	      offset = ELF_FETCH_FIELD (type_functions, ei_class, Shdr,
+					shdr, sh_offset, Elf_Addr);
+	      length = ELF_FETCH_FIELD (type_functions, ei_class, Shdr,
+					shdr, sh_size, Elf_Addr);
+	      buf = XNEWVEC (unsigned char, length);
+	      if (!simple_object_internal_read (sobj->descriptor,
+						sobj->offset + offset, buf,
+						(size_t) length, &errmsg, err))
+		{
+		  XDELETEVEC (buf);
+		  XDELETEVEC (names);
+		  XDELETEVEC (shdrs);
+		  return errmsg;
+		}
+	      for (ent = buf + entsize; ent < buf + length; ent += entsize)
+		{
+		  unsigned sec = type_functions->fetch_Elf_Word (ent);
+		  if (pfnret[sec - 1] == 0)
+		    keep = 1;
+		}
+	      if (keep)
+		{
+		  changed |= (pfnret[sh_link - 1] == -1
+			      || pfnret[i - 1] == -1);
+		  pfnret[sh_link - 1] = 0;
+		  pfnret[i - 1] = 0;
+		}
 	    }
-	  if (keep)
+	  if (sh_type == SHT_RELA
+	      || sh_type == SHT_REL)
 	    {
-	      pfnret[sh_link - 1] = 0;
-	      pfnret[i - 1] = 0;
+	      /* Mark relocation sections and symtab of copied sections.  */
+	      if (pfnret[sh_info - 1] == 0)
+		{
+		  changed |= (pfnret[sh_link - 1] == -1
+			      || pfnret[i - 1] == -1);
+		  pfnret[sh_link - 1] = 0;
+		  pfnret[i - 1] = 0;
+		}
 	    }
-	}
-      if (sh_type == SHT_RELA
-	  || sh_type == SHT_REL)
-	{
-	  /* Mark relocation sections and symtab of copied sections.  */
-	  if (pfnret[sh_info - 1] == 0)
+	  if (sh_type == SHT_SYMTAB)
 	    {
-	      pfnret[sh_link - 1] = 0;
-	      pfnret[i - 1] = 0;
+	      /* Mark strings sections of copied symtabs.  */
+	      if (pfnret[i - 1] == 0)
+		{
+		  changed |= pfnret[sh_link - 1] == -1;
+		  pfnret[sh_link - 1] = 0;
+		}
 	    }
 	}
-      if (sh_type == SHT_SYMTAB)
-	{
-	  /* Mark strings sections of copied symtabs.  */
-	  if (pfnret[i - 1] == 0)
-	    pfnret[sh_link - 1] = 0;
-	}
     }
+  while (changed);
 
   /* Then perform the actual copying.  */
   for (i = 1; i < shnum; ++i)
diff --git a/libiberty/testsuite/demangle-expected b/libiberty/testsuite/demangle-expected
index f2a12b9a7d..c1a9a73f4d 100644
--- a/libiberty/testsuite/demangle-expected
+++ b/libiberty/testsuite/demangle-expected
@@ -4720,18 +4720,33 @@ _ZdvMMMMMMMMMMMMMrrrrA_DTdvfp_fp_Eededilfdfdfdfd
 
 _Z1MA_aMMMMA_MMA_MMMMMMMMSt1MS_o11T0000000000t2M0oooozoooo
 _Z1MA_aMMMMA_MMA_MMMMMMMMSt1MS_o11T0000000000t2M0oooozoooo
-
 #
 # demangler/80513 Test for overflow in d_number
+
 _Z4294967297x
 _Z4294967297x
-
 #
 # demangler/80513 Test for bogus characters after __thunk_
+
 __thunk_16a_$_1x
 __thunk_16a_$_1x
-
 #
 # demangler/80513 Test for overflow in consume_count
+
 __thunk_4294967297__$_1x
 __thunk_4294967297__$_1x
+#
+# demangler/82195 members of lambdas
+--no-params
+_ZZZ3FoovENKUlT_E_clIiEEfS_EN5Local2fnEv
+Foo()::float {lambda(auto:1)#1}::operator()<int>(int) const::Local::fn()
+Foo()::float {lambda(auto:1)#1}::operator()<int>(int) const::Local::fn
+--no-params
+_Z7CaptureIZZ3FoovENKUlT_E_clIiEEvS0_EUlvE_EvOS0_
+void Capture<Foo()::void {lambda(auto:1)#1}::operator()<int>(int) const::{lambda()#1}>(Foo()::void {lambda(auto:1)#1}::operator()<int>(int) const::{lambda()#1}&&)
+Capture<Foo()::void {lambda(auto:1)#1}::operator()<int>(int) const::{lambda()#1}>
+--no-params
+_Z4FrobIZZ3FoovENKUlT_E_clIiEEvS0_EUlvE_Evv
+void Frob<Foo()::void {lambda(auto:1)#1}::operator()<int>(int) const::{lambda()#1}>()
+Frob<Foo()::void {lambda(auto:1)#1}::operator()<int>(int) const::{lambda()#1}>
+#