ia64.c (ia64_va_arg): Pass pointer for variable-sized type through convert_memory_add...

ia64.c (ia64_va_arg): Pass pointer for variable-sized type through convert_memory_address.

gcc:
	* config/ia64/ia64.c (ia64_va_arg): Pass pointer for
	variable-sized type through convert_memory_address.
	(ia64_in_small_data_p): Always return false for FUNCTION_DECLs.

gcc/testsuite:
	* lib/gcc-dg.exp (dg-prune-output): New annotation.
	(additional_prunes): New global.
	(gcc-dg-prune): Handle additional per-test pruning.
	(dg-test): Clear additional_prunes between tests.

	* gcc.c-torture/compile/920625-1.c: Remove xfail.  Use
	dg-prune-output to avoid spurious failures from assembler
	complaining about nonexistent WAW violations.
	* gcc.c-torture/compile/981223-1.c: Remove dg-options line.
	Use dg-prune-output to avoid spurious failures from assembler
	warning about Itanium B-step errata.

From-SVN: r74980