re PR target/41900 (call *%esp shouldn't be generated because of CPU errata)

re PR target/41900 (call *%esp shouldn't be generated because of CPU errata)

	PR target/41900
	* config/i386/i386.h (ix86_arch_indices) <X86_ARCH_CALL_ESP>: New.
	(TARGET_CALL_ESP): New define.
	* config/i386/i386.c (initial_ix86_tune_features): Initialize
	X86_ARCH_CALL_ESP.
	* config/i386/i386.md
	(*call_pop_1_esp, *call_1_esp, *call_value_pop_1_esp,
	*call_value_1_esp): Rename from *call_pop_1, *call_1,
	*call_value_pop_1 and *call_value_1.  Depend on TARGET_CALL_ESP.
	(*call_pop_1, *call_1, *call_value_pop_1, *call_value_1):
	New patterns, use "lsm" as operand 1 constraint.
	* config/i386/predicates.md (call_insn_operand): Depend on
	index_register_operand for !TARGET_CALL_ESP to avoid %esp register.

testsuite/ChangeLog:

	PR target/41900
	* gcc.target/i386/pr41900.c: New test.

From-SVN: r153838