procyberian/gcc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

avr.c: Eliminate use of _PC_ in pc relative insns.

Browse source 
* config/avr/avr.c: Eliminate use of _PC_ in pc relative insns.
	* config/avr/avr.md: Ditto.

From-SVN: r57613
This commit is contained in:
Theodore A. Roth 2002-09-28 14:14:12 +00:00 • committed by Marek Michalkiewicz
parent 5831424ed7
commit 13e8651c8a
3 changed files with 51 additions and 47 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
gcc/ChangeLog
View file

@ -1,3 +1,8 @@
2002-09-26 Theodore A. Roth <troth@verinet.com>
* config/avr/avr.c: Eliminate use of _PC_ in pc relative insns.
* config/avr/avr.md: Ditto.
2002-09-27 Alexander N. Kabaev <ak03@gte.com>
PR preprocessor/8055

67
gcc/config/avr/avr.c
View file

@ -1313,60 +1313,60 @@ ret_cond_branch (x, len, reverse)
{
case GT:
if (cc_prev_status.flags & CC_OVERFLOW_UNUSABLE)
return (len == 1 ? (AS1 (breq,_PC_+2) CR_TAB
return (len == 1 ? (AS1 (breq,.+2) CR_TAB
AS1 (brpl,%0)) :
len == 2 ? (AS1 (breq,_PC_+4) CR_TAB
AS1 (brmi,_PC_+2) CR_TAB
len == 2 ? (AS1 (breq,.+4) CR_TAB
AS1 (brmi,.+2) CR_TAB
AS1 (rjmp,%0)) :
(AS1 (breq,_PC_+6) CR_TAB
AS1 (brmi,_PC_+4) CR_TAB
(AS1 (breq,.+6) CR_TAB
AS1 (brmi,.+4) CR_TAB
AS1 (jmp,%0)));
else
return (len == 1 ? (AS1 (breq,_PC_+2) CR_TAB
return (len == 1 ? (AS1 (breq,.+2) CR_TAB
AS1 (brge,%0)) :
len == 2 ? (AS1 (breq,_PC_+4) CR_TAB
AS1 (brlt,_PC_+2) CR_TAB
len == 2 ? (AS1 (breq,.+4) CR_TAB
AS1 (brlt,.+2) CR_TAB
AS1 (rjmp,%0)) :
(AS1 (breq,_PC_+6) CR_TAB
AS1 (brlt,_PC_+4) CR_TAB
(AS1 (breq,.+6) CR_TAB
AS1 (brlt,.+4) CR_TAB
AS1 (jmp,%0)));
case GTU:
return (len == 1 ? (AS1 (breq,_PC_+2) CR_TAB
return (len == 1 ? (AS1 (breq,.+2) CR_TAB
AS1 (brsh,%0)) :
len == 2 ? (AS1 (breq,_PC_+4) CR_TAB
AS1 (brlo,_PC_+2) CR_TAB
len == 2 ? (AS1 (breq,.+4) CR_TAB
AS1 (brlo,.+2) CR_TAB
AS1 (rjmp,%0)) :
(AS1 (breq,_PC_+6) CR_TAB
AS1 (brlo,_PC_+4) CR_TAB
(AS1 (breq,.+6) CR_TAB
AS1 (brlo,.+4) CR_TAB
AS1 (jmp,%0)));
case LE:
if (cc_prev_status.flags & CC_OVERFLOW_UNUSABLE)
return (len == 1 ? (AS1 (breq,%0) CR_TAB
AS1 (brmi,%0)) :
len == 2 ? (AS1 (breq,_PC_+2) CR_TAB
AS1 (brpl,_PC_+2) CR_TAB
len == 2 ? (AS1 (breq,.+2) CR_TAB
AS1 (brpl,.+2) CR_TAB
AS1 (rjmp,%0)) :
(AS1 (breq,_PC_+2) CR_TAB
AS1 (brpl,_PC_+4) CR_TAB
(AS1 (breq,.+2) CR_TAB
AS1 (brpl,.+4) CR_TAB
AS1 (jmp,%0)));
else
return (len == 1 ? (AS1 (breq,%0) CR_TAB
AS1 (brlt,%0)) :
len == 2 ? (AS1 (breq,_PC_+2) CR_TAB
AS1 (brge,_PC_+2) CR_TAB
len == 2 ? (AS1 (breq,.+2) CR_TAB
AS1 (brge,.+2) CR_TAB
AS1 (rjmp,%0)) :
(AS1 (breq,_PC_+2) CR_TAB
AS1 (brge,_PC_+4) CR_TAB
(AS1 (breq,.+2) CR_TAB
AS1 (brge,.+4) CR_TAB
AS1 (jmp,%0)));
case LEU:
return (len == 1 ? (AS1 (breq,%0) CR_TAB
AS1 (brlo,%0)) :
len == 2 ? (AS1 (breq,_PC_+2) CR_TAB
AS1 (brsh,_PC_+2) CR_TAB
len == 2 ? (AS1 (breq,.+2) CR_TAB
AS1 (brsh,.+2) CR_TAB
AS1 (rjmp,%0)) :
(AS1 (breq,_PC_+2) CR_TAB
AS1 (brsh,_PC_+4) CR_TAB
(AS1 (breq,.+2) CR_TAB
AS1 (brsh,.+4) CR_TAB
AS1 (jmp,%0)));
default:
if (reverse)
@ -1376,10 +1376,10 @@ ret_cond_branch (x, len, reverse)
case 1:
return AS1 (br%k1,%0);
case 2:
return (AS1 (br%j1,_PC_+2) CR_TAB
return (AS1 (br%j1,.+2) CR_TAB
AS1 (rjmp,%0));
default:
return (AS1 (br%j1,_PC_+4) CR_TAB
return (AS1 (br%j1,.+4) CR_TAB
AS1 (jmp,%0));
}
}
@ -1390,10 +1390,10 @@ ret_cond_branch (x, len, reverse)
case 1:
return AS1 (br%j1,%0);
case 2:
return (AS1 (br%k1,_PC_+2) CR_TAB
return (AS1 (br%k1,.+2) CR_TAB
AS1 (rjmp,%0));
default:
return (AS1 (br%k1,_PC_+4) CR_TAB
return (AS1 (br%k1,.+4) CR_TAB
AS1 (jmp,%0));
}
}
@ -4887,8 +4887,7 @@ asm_file_start (file)
"__SP_L__ = 0x3d\n", file);
fputs ("__tmp_reg__ = 0\n"
"__zero_reg__ = 1\n"
"_PC_ = 2\n", file);
"__zero_reg__ = 1\n", file);
/* FIXME: output these only if there is anything in the .data / .bss
sections - some code size could be saved by not linking in the
@ -5596,7 +5595,7 @@ avr_out_sbxx_branch (insn, operands)
}
if (long_jump)
return (AS1 (rjmp,_PC_+4) CR_TAB
return (AS1 (rjmp,.+4) CR_TAB
AS1 (jmp,%3));
if (!reverse)
return AS1 (rjmp,%3);

26
gcc/config/avr/avr.md
View file

@ -387,7 +387,7 @@
"ld __tmp_reg__,%a1+
st %a0+,__tmp_reg__
dec %2
brne _PC_-8"
brne .-8"
[(set_attr "length" "4")
(set_attr "cc" "clobber")])
@ -405,13 +405,13 @@
return (AS2 (ld,__tmp_reg__,%a1+) CR_TAB
AS2 (st,%a0+,__tmp_reg__) CR_TAB
AS2 (sbiw,%A2,1) CR_TAB
AS1 (brne,_PC_-8));
AS1 (brne,.-8));
else
return (AS2 (ld,__tmp_reg__,%a1+) CR_TAB
AS2 (st,%a0+,__tmp_reg__) CR_TAB
AS2 (subi,%A2,1) CR_TAB
AS2 (sbci,%B2,0) CR_TAB
AS1 (brne,_PC_-10));
AS1 (brne,.-10));
}"
[(set_attr "length" "4,5")
(set_attr "cc" "clobber,clobber")])
@ -457,7 +457,7 @@
""
"st %a0+,__zero_reg__
dec %1
brne _PC_-6"
brne .-6"
[(set_attr "length" "3")
(set_attr "cc" "clobber")])
@ -473,12 +473,12 @@
if (which_alternative==0)
return (AS2 (st,%a0+,__zero_reg__) CR_TAB
AS2 (sbiw,%A1,1) CR_TAB
AS1 (brne,_PC_-6));
AS1 (brne,.-6));
else
return (AS2 (st,%a0+,__zero_reg__) CR_TAB
AS2 (subi,%A1,1) CR_TAB
AS2 (sbci,%B1,0) CR_TAB
AS1 (brne,_PC_-8));
AS1 (brne,.-8));
}"
[(set_attr "length" "3,4")
(set_attr "cc" "clobber,clobber")])
@ -512,7 +512,7 @@
""
"ld __tmp_reg__,%a0+
tst __tmp_reg__
brne _PC_-6"
brne .-6"
[(set_attr "length" "3")
(set_attr "cc" "clobber")])
@ -2423,10 +2423,10 @@
case 1:
return AS1 (brcc,%2);
case 2:
return (AS1 (brcs,_PC_+2) CR_TAB
return (AS1 (brcs,.+2) CR_TAB
AS1 (rjmp,%2));
}
return (AS1 (brcs,_PC_+4) CR_TAB
return (AS1 (brcs,.+4) CR_TAB
AS1 (jmp,%2));
}")
@ -2458,10 +2458,10 @@
case 1:
return AS1 (brcc,%2);
case 2:
return (AS1 (brcs,_PC_+2) CR_TAB
return (AS1 (brcs,.+2) CR_TAB
AS1 (rjmp,%2));
}
return (AS1 (brcs,_PC_+4) CR_TAB
return (AS1 (brcs,.+4) CR_TAB
AS1 (jmp,%2));
}")
@ -2488,10 +2488,10 @@
case 1:
return AS1 (brcc,%1);
case 2:
return (AS1 (brcs,_PC_+2) CR_TAB
return (AS1 (brcs,.+2) CR_TAB
AS1 (rjmp,%1));
}
return (AS1 (brcs,_PC_+4) CR_TAB
return (AS1 (brcs,.+4) CR_TAB
AS1 (jmp,%1));
}")