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* Re: target/10282: [3.3/3.4 regression] ICE: unable to find a register to spill in class `Q_REGS'
@ 2003-04-01 0:07 bangerth
0 siblings, 0 replies; 4+ messages in thread
From: bangerth @ 2003-04-01 0:07 UTC (permalink / raw)
To: gabor, gcc-bugs, gcc-prs, nobody
Old Synopsis: ICE: unable to find a register to spill in class `Q_REGS'
New Synopsis: [3.3/3.4 regression] ICE: unable to find a register to spill in class `Q_REGS'
State-Changed-From-To: open->analyzed
State-Changed-By: bangerth
State-Changed-When: Tue Apr 1 00:07:24 2003
State-Changed-Why:
Confirmed. This is as short as I could get it:
------------------------
typedef struct X {
char * p;
long l;
} X_t;
void foo(X_t * A_buf , X_t * A_next) {
int Li;
long Ll;
X_t Ld1;
X_t Ld2;
Li = undeclared1(Ll);
Ld1 = *A_next;
Ld2 = *A_buf;
(*(Ld2.p + Ld1.l)) = Ll;
undeclared2(Ld2);
}
-------------------------
g/x> /home/bangerth/bin/gcc-3.4-pre/bin/gcc -O -c x.c
x.c: In function `foo':
x.c:17: error: unable to find a register to spill in class `Q_REGS'
x.c:17: error: this is the insn:
(insn 22 20 24 0 0x40153268 (set (mem:QI (plus:SI (subreg:SI (reg/v:DI 63 [ Ld2 ]) 0)
(subreg:SI (reg/v:DI 62 [ Ld1 ]) 4)) [0 S1 A8])
(subreg:QI (reg/v:SI 4 esi [orig:61 Ll ] [61]) 0)) 48 {*movqi_1} (insn_list 18 (insn_list 20 (nil)))
(expr_list:REG_DEAD (reg/v:SI 4 esi [orig:61 Ll ] [61])
(expr_list:REG_DEAD (reg/v:DI 62 [ Ld1 ])
(nil))))
x.c:17: internal compiler error: in spill_failure, at reload1.c:1917
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
This is a regression on 3.3 and mainline w.r.t. 3.4.
W.
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10282
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: target/10282: [3.3/3.4 regression] ICE: unable to find a register to spill in class `Q_REGS'
@ 2003-04-12 11:26 ebotcazou
0 siblings, 0 replies; 4+ messages in thread
From: ebotcazou @ 2003-04-12 11:26 UTC (permalink / raw)
To: ebotcazou, gabor, gcc-bugs, gcc-prs
Synopsis: [3.3/3.4 regression] ICE: unable to find a register to spill in class `Q_REGS'
State-Changed-From-To: analyzed->closed
State-Changed-By: ebotcazou
State-Changed-When: Sat Apr 12 11:26:13 2003
State-Changed-Why:
Confirmed as a duplicate of PR target/9929.
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10282
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: target/10282: [3.3/3.4 regression] ICE: unable to find a register to spill in class `Q_REGS'
@ 2003-04-10 17:08 ebotcazou
0 siblings, 0 replies; 4+ messages in thread
From: ebotcazou @ 2003-04-10 17:08 UTC (permalink / raw)
To: ebotcazou, gabor, gcc-bugs, gcc-prs, nobody
Synopsis: [3.3/3.4 regression] ICE: unable to find a register to spill in class `Q_REGS'
Responsible-Changed-From-To: unassigned->ebotcazou
Responsible-Changed-By: ebotcazou
Responsible-Changed-When: Thu Apr 10 17:08:44 2003
Responsible-Changed-Why:
Investigating.
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10282
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: target/10282: [3.3/3.4 regression] ICE: unable to find a register to spill in class `Q_REGS'
@ 2003-04-01 16:56 Janis Johnson
0 siblings, 0 replies; 4+ messages in thread
From: Janis Johnson @ 2003-04-01 16:56 UTC (permalink / raw)
To: nobody; +Cc: gcc-prs
The following reply was made to PR target/10282; it has been noted by GNATS.
From: Janis Johnson <janis187@us.ibm.com>
To: gabor@mac.com, gcc-gnats@gcc.gnu.org, gcc-bugs@gcc.gnu.org,
nobody@gcc.gnu.org, gcc-prs@gcc.gnu.org, jh@suse.cz
Cc:
Subject: Re: target/10282: [3.3/3.4 regression] ICE: unable to find a register to
spill in class `Q_REGS'
Date: Tue, 01 Apr 2003 08:59:17 -0800
The regression appeared with this patch:
Sat Mar 30 14:08:55 CET 2002 Jan Hubicka <jh@suse.cz>
* i386.c (aligned_operand): Be prepared for SUBREGed registers.
(ix86_decompose_address): Use REG_P instead of GET_CODE (...) ==
REG.
(ix86_address_cost): Be prepared for SUBREGed registers.
(legitimate_address_p): Accept SUBREGed registers.
The hunt used -O with Wolfgang's minimized testcase on
i686-pc-linux-gnu. This change was checked in at the same
time as four others that appear to be unrelated to each
other, and I verified that this one breaks the test case.
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10282
^ permalink raw reply [flat|nested] 4+ messages in thread
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2003-04-01 0:07 target/10282: [3.3/3.4 regression] ICE: unable to find a register to spill in class `Q_REGS' bangerth
2003-04-01 16:56 Janis Johnson
2003-04-10 17:08 ebotcazou
2003-04-12 11:26 ebotcazou
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