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re PR target/51050 ([AVR, attiny26] ICE: invalid rtl sharing found in the insn) 

PR target/51050
	* config/avr/avr.c (expand_epilogue): Don't build SUBREG of fp.
	(avr_prologue_setup_frame): Ditto.

From-SVN: r182363
This commit is contained in:
Georg-Johann Lay 2011-12-15 11:10:32 +00:00 committed by Georg-Johann Lay
parent 0c1e1df880
commit 4e15cee6c7
2 changed files with 8 additions and 2 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2011-12-15 Georg-Johann Lay <avr@gjlay.de>
PR target/51050
* config/avr/avr.c (expand_epilogue): Don't build SUBREG of fp.
(avr_prologue_setup_frame): Ditto.
2011-12-15 Jakub Jelinek <jakub@redhat.com>
PR debug/51517

4
gcc/config/avr/avr.c
View File

@ -994,7 +994,7 @@ avr_prologue_setup_frame (HOST_WIDE_INT size, HARD_REG_SET set)
/* The high byte (r29) does not change:
Prefer SUBI (1 cycle) over ABIW (2 cycles, same size). */
my_fp = simplify_gen_subreg (QImode, fp, Pmode, 0);
my_fp = all_regs_rtx[FRAME_POINTER_REGNUM];
}
/************ Method 1: Adjust frame pointer ************/
@ -1292,7 +1292,7 @@ expand_epilogue (bool sibcall_p)
/* The high byte (r29) does not change:
Prefer SUBI (1 cycle) over SBIW (2 cycles). */
my_fp = simplify_gen_subreg (QImode, fp, Pmode, 0);
my_fp = all_regs_rtx[FRAME_POINTER_REGNUM];
}
/********** Method 1: Adjust fp register **********/