i386.c (x86_sub_esp_4, [...]): New global variables.

i386.c (x86_sub_esp_4, [...]): New global variables.

	* i386.c (x86_sub_esp_4, x86_sub_esp_8, x86_add_esp_4, x86_add_esp_8):
	New global variables.
	(ix86_emit_epilogue_adjustment): Do not attempt to use pop for the
	adjustment.
	* i386.h (x86_sub_esp_4, x86_sub_esp_8, x86_add_esp_4, x86_add_esp_8):
	Declare,
	(TARGET_SUB_ESP_4, TARGET_SUB_ESP_8, TARGET_ADD_ESP_4,
	 TARGET_ADD_ESP_8): New macros.
	* i386.md: Add peep2s to convert esp adjustments to push and pop
	instructions.
	(pushsi_prologue, popsi_epilogue): New patterns.

From-SVN: r33100