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Message
From: Balaji V. Iyer<bviyer@n...>
Date: Sun Dec 9 17:35:32 CET 2007
Subject: [openrisc] RE: Help with another constraint
Hello Rask,
I am not understanding your response, can you clarify it for me?
As per the question about the error message above?
../../gcc-4.0.2/gcc/libgcc2.c -o libgcc/./_negdi2.o
../../gcc-4.0.2/gcc/libgcc2.c: In function '__negdi2':
../../gcc-4.0.2/gcc/libgcc2.c:72: error: insn does not satisfy its
constraints:
(insn 15 13 16 (set (mem:SI (plus:SI (reg/f:SI 2 r2)
(const_int -28 [0xffffffe4])) [0 D.1256+0 S4 A32])
(neg:SI (reg:SI 3 r3 [orig:80 D.1255 ] [80]))) 38 {negsi2} (nil)
(nil))
../../gcc-4.0.2/gcc/libgcc2.c:72: internal compiler error: in
final_scan_insn, at final.c:2439
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
make[2]: *** [libgcc/./_negdi2.o] Error 1
make[2]: Leaving directory
-Balaji V. Iyer.
--
Balaji V. Iyer
PhD Student,
Center for Efficient, Scalable and Reliable Computing,
Department of Electrical and Computer Engineering,
North Carolina State University.
-----Original Message-----
From: Rask Ingemann Lambertsen [mailto:rask@s...]
Sent: Sunday, December 09, 2007 8:08 AM
To: Balaji V. Iyer
Cc: gcc@g...; openrisc@o...
Subject: Re: Help with another constraint
On Sun, Dec 09, 2007 at 03:55:36AM -0500, Balaji V. Iyer wrote:
> Hello Everyone,
> I am trying to partition register files in GCC port of Opencores
> (OPENRISC 1000). It is currently failing the following constraint in
> negdi2
>
> (insn 15 13 16 (set (mem:SI (plus:SI (reg/f:SI 2 r2)
^^^
> (const_int -28 [0xffffffe4])) [0 D.1256+0 S4 A32])
> (neg:SI (reg:SI 3 r3 [orig:80 D.1255 ] [80]))) 38 {negsi2}
(nil)
> (nil))
> ../../gcc-4.0.2/gcc/libgcc2.c:72: internal compiler error: in
> final_scan_insn, at final.c:2439 Please submit a full bug report,
+(define_insn "negsi2"
+ [(set (match_operand:SI 0 "register_operand" "=r")
^^^^^^^^^^^^^^^^
+ (neg:SI (match_operand:SI 1 "register_operand" "r")))] ""
+ "l.sub \t%0,r0,%1"
+ [(set_attr "type" "add")
+ (set_attr "length" "1")])
How did that happen? Look at the dump files. Btw, what is the error
message above the insn dump?
--
Rask Ingemann Lambertsen
Danish law requires addresses in e-mail to be logged and stored for a
year
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