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re PR target/32335 (libgcc build failure, ICE in cselib_record_set, at cselib.c:1508) 

PR target/32335
	* config/avr/avr.c: Include dataflow header file.
	(expand_prologue): Adjust for prologue insn change.
	* config/avr/avr.md (call_prologue_saves): Only modify REG_SP once
	inside a insn.

From-SVN: r126121
This commit is contained in:
Anatoly Sokolov 2007-06-30 00:05:56 +04:00 committed by Anatoly Sokolov
parent f535826b35
commit 4e63b362a7
3 changed files with 19 additions and 10 deletions
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8
gcc/ChangeLog
View File

@ -1,3 +1,11 @@
2007-06-29 Anatoly Sokolov <aesok@post.ru>
PR target/32335
* config/avr/avr.c: Include dataflow header file.
(expand_prologue): Adjust for prologue insn change.
* config/avr/avr.md (call_prologue_saves): Only modify REG_SP once
inside a insn.
2007-06-29 Richard Guenther <rguenther@suse.de>
PR middle-end/32493

9
gcc/config/avr/avr.c
View File

@ -44,6 +44,7 @@
#include "tm_p.h"
#include "target.h"
#include "target-def.h"
#include "df.h"
/* Maximal allowed offset for an address in the LD command */
#define MAX_LD_OFFSET(MODE) (64 - (signed)GET_MODE_SIZE (MODE))
@ -631,9 +632,13 @@ expand_prologue (void)
}
else if (minimize && (frame_pointer_needed || live_seq > 6))
{
insn = emit_move_insn (gen_rtx_REG (HImode, REG_X),
gen_int_mode (size, HImode));
RTX_FRAME_RELATED_P (insn) = 1;
insn =
emit_insn (gen_call_prologue_saves (gen_int_mode (size, HImode),
gen_int_mode (live_seq, HImode)));
emit_insn (gen_call_prologue_saves (gen_int_mode (live_seq, HImode),
gen_int_mode (size + live_seq, HImode)));
RTX_FRAME_RELATED_P (insn) = 1;
}
else

12
gcc/config/avr/avr.md
View File

@ -2706,20 +2706,16 @@
;; Library prologue saves
(define_insn "call_prologue_saves"
[(unspec_volatile:HI [(const_int 0)] UNSPECV_PROLOGUE_SAVES)
(set (reg:HI REG_SP) (minus:HI
(reg:HI REG_SP)
(match_operand:HI 0 "immediate_operand" "")))
(match_operand:HI 0 "immediate_operand" "")
(set (reg:HI REG_SP) (minus:HI
(reg:HI REG_SP)
(match_operand:HI 1 "immediate_operand" "")))
(set (reg:HI REG_X) (match_dup 0))
(use (reg:HI REG_X))
(clobber (reg:HI REG_Z))]
""
"ldi r26,lo8(%0)
ldi r27,hi8(%0)
ldi r30,pm_lo8(1f)
"ldi r30,pm_lo8(1f)
ldi r31,pm_hi8(1f)
%~jmp __prologue_saves__+((18 - %1) * 2)
%~jmp __prologue_saves__+((18 - %0) * 2)
1:"
[(set_attr_alternative "length"
[(if_then_else (eq_attr "mcu_mega" "yes")