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stormy16.c (stormy16_expand_epilogue): Use the frame pointer to pop the stack if convenient.

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* config/stormy16/stormy16.c (stormy16_expand_epilogue): Use
	the frame pointer to pop the stack if convenient.

	* config/stormy16/stormy16.c (stormy16_initialize_trampoline):
	Don't use post-increment before combine.
	* config/stormy16/stormy16.h (STATIC_CHAIN_REGNUM): Don't use
	a call-saved register.

From-SVN: r45314
This commit is contained in:
Geoffrey Keating 2001-08-31 07:57:54 +00:00 committed by Geoffrey Keating
parent 06d2bb8002
commit e2470e1be7
3 changed files with 22 additions and 4 deletions
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10
gcc/ChangeLog
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@ -1,3 +1,13 @@
2001-08-31 Geoffrey Keating <geoffk@redhat.com>
* config/stormy16/stormy16.c (stormy16_expand_epilogue): Use
the frame pointer to pop the stack if convenient.
* config/stormy16/stormy16.c (stormy16_initialize_trampoline):
Don't use post-increment before combine.
* config/stormy16/stormy16.h (STATIC_CHAIN_REGNUM): Don't use
a call-saved register.
2001-08-31 Andreas Jaeger <aj@suse.de>
* jump.c (mark_jump_label): Revert patch from 2001-08-28, the

14
gcc/config/stormy16/stormy16.c
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@ -1023,8 +1023,13 @@ stormy16_expand_epilogue ()
/* Pop the stack for the locals. */
if (layout.locals_size)
emit_addhi3_postreload (stack_pointer_rtx, stack_pointer_rtx,
GEN_INT (- layout.locals_size));
{
if (frame_pointer_needed && layout.sp_minus_fp == layout.locals_size)
emit_move_insn (stack_pointer_rtx, hard_frame_pointer_rtx);
else
emit_addhi3_postreload (stack_pointer_rtx, stack_pointer_rtx,
GEN_INT (- layout.locals_size));
}
/* Restore any call-saved registers. */
for (regno = FIRST_PSEUDO_REGISTER - 1; regno >= 0; regno--)
@ -1262,18 +1267,21 @@ stormy16_initialize_trampoline (addr, fnaddr, static_chain)
rtx reg_fnaddr = gen_reg_rtx (HImode);
rtx reg_addr_mem;
reg_addr_mem = gen_rtx_MEM (HImode, gen_rtx_POST_INC (Pmode, reg_addr));
reg_addr_mem = gen_rtx_MEM (HImode, reg_addr);
emit_move_insn (reg_addr, addr);
emit_move_insn (temp, GEN_INT (0x3130 | STATIC_CHAIN_REGNUM));
emit_move_insn (reg_addr_mem, temp);
emit_insn (gen_addhi3 (reg_addr, reg_addr, const2_rtx));
emit_move_insn (temp, static_chain);
emit_move_insn (reg_addr_mem, temp);
emit_insn (gen_addhi3 (reg_addr, reg_addr, const2_rtx));
emit_move_insn (reg_fnaddr, fnaddr);
emit_move_insn (temp, reg_fnaddr);
emit_insn (gen_andhi3 (temp, temp, GEN_INT (0xFF)));
emit_insn (gen_iorhi3 (temp, temp, GEN_INT (0x0200)));
emit_move_insn (reg_addr_mem, temp);
emit_insn (gen_addhi3 (reg_addr, reg_addr, const2_rtx));
emit_insn (gen_lshrhi3 (reg_fnaddr, reg_fnaddr, GEN_INT (8)));
emit_move_insn (reg_addr_mem, reg_fnaddr);
}

2
gcc/config/stormy16/stormy16.h
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@ -1785,7 +1785,7 @@ enum reg_class
If the static chain is passed in memory, these macros should not be defined;
instead, the next two macros should be defined. */
#define STATIC_CHAIN_REGNUM 12
#define STATIC_CHAIN_REGNUM 1
/* #define STATIC_CHAIN_INCOMING_REGNUM */
/* If the static chain is passed in memory, these macros provide rtx giving