re PR c++/11326 (C++ IA64 ABI: 3.1.4: sometimes pointer to temporary return value is implicit first parameter preceding "this")

	PR c++/11326
	* c-common.c (flag_abi_version): Remove.
	* c-common.h (flag_abi_version): Likewise.
	* c-opts.c (c_common_handle_option): Remove OPT_fabi_version case.
	* c.opt (fabi-version): Remove.
	* calls.c (expand_call): Always pass a function type to
	struct_value_rtx.  Use convert_memory_address.
	* common.opt (fabi-version): Add it.
	* flags.h (flag_abi_version): Likewise.
	(abi_version_at_least): New macro.
	* opts.c (common_handle_option): Add OPT_fabi_version.
	* toplev.c (flag_abi_version): Define it.
	* config/ia64/ia64.c (ia64_struct_retval_addr_is_first_parm_p):
	New function.
	(ia64_output_mi_thunk): Use it.
	(ia64_struct_value_rtx): Likewise.

	PR c++/11326
	* cp-tree.h (abi_version_at_least): Remove.
	* mangle.c: Include flags.h.

	PR c++/11326
	* g++.dg/abi/structret1.C: New test.

From-SVN: r77968

1 files changed, 4 insertions, 0 deletions

diff --git a/gcc/opts.c b/gcc/opts.c
index d54d1b4..45acba3 100644
--- a/gcc/opts.c
+++ b/gcc/opts.c
@@ -833,6 +833,10 @@ common_handle_option (size_t scode, const char *arg,
       flag_pie = value + value;
       break;
 
+    case OPT_fabi_version_:
+      flag_abi_version = value;
+      break;
+
     case OPT_falign_functions:
       align_functions = !value;
       break;