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From: "dje at watson dot ibm dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/18641] [4.0 Regression] Another ICE caused by reload of a psuedo reg into f0 for a DImode expr
Date: Mon, 06 Dec 2004 17:16:00 -0000 [thread overview]
Message-ID: <20041206171645.13753.qmail@sourceware.org> (raw)
In-Reply-To: <20041124011632.18641.fjahanian@apple.com>
------- Additional Comments From dje at watson dot ibm dot com 2004-12-06 17:16 -------
Subject: Re: [4.0 Regression] Another ICE caused by reload of a psuedo reg into f0 for a DImode expr
The following patch implements the two suggestions. It fixes the
ICE on AIX, but continues to produce an ICE on Mac OS X.
Also, the CONST_INT case only should be relevant in 64-bit mode.
Index: rs6000.h
===================================================================
RCS file: /cvs/gcc/gcc/gcc/config/rs6000/rs6000.h,v
retrieving revision 1.348
diff -c -p -r1.348 rs6000.h
*** rs6000.h 27 Nov 2004 22:45:24 -0000 1.348
--- rs6000.h 6 Dec 2004 17:14:18 -0000
*************** enum reg_class
*** 1397,1404 ****
*/
#define PREFERRED_RELOAD_CLASS(X,CLASS) \
! (((GET_CODE (X) == CONST_DOUBLE \
! && GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT) \
? NO_REGS \
: (GET_MODE_CLASS (GET_MODE (X)) == MODE_INT \
&& (CLASS) == NON_SPECIAL_REGS) \
--- 1397,1404 ----
*/
#define PREFERRED_RELOAD_CLASS(X,CLASS) \
! (((CONSTANT_P (X) \
! && reg_classes_intersect_p ((CLASS), FLOAT_REGS)) \
? NO_REGS \
: (GET_MODE_CLASS (GET_MODE (X)) == MODE_INT \
&& (CLASS) == NON_SPECIAL_REGS) \
Index: rs6000.md
===================================================================
RCS file: /cvs/gcc/gcc/gcc/config/rs6000/rs6000.md,v
retrieving revision 1.336
diff -c -p -r1.336 rs6000.md
*** rs6000.md 1 Dec 2004 17:18:38 -0000 1.336
--- rs6000.md 6 Dec 2004 17:14:18 -0000
***************
*** 8496,8502 ****
; List r->r after r->"o<>", otherwise reload will try to reload a
; non-offsettable address by using r->r which won't make progress.
(define_insn "*movdi_internal32"
! [(set (match_operand:DI 0 "nonimmediate_operand" "=o<>,r,r,f,f,m,r")
(match_operand:DI 1 "input_operand" "r,r,m,f,m,f,IJKnGHF"))]
"! TARGET_POWERPC64
&& (gpc_reg_operand (operands[0], DImode)
--- 8496,8502 ----
; List r->r after r->"o<>", otherwise reload will try to reload a
; non-offsettable address by using r->r which won't make progress.
(define_insn "*movdi_internal32"
! [(set (match_operand:DI 0 "nonimmediate_operand" "=o<>,r,r,!*f,!*f,m,r")
(match_operand:DI 1 "input_operand" "r,r,m,f,m,f,IJKnGHF"))]
"! TARGET_POWERPC64
&& (gpc_reg_operand (operands[0], DImode)
***************
*** 8567,8573 ****
}")
(define_insn "*movdi_internal64"
! [(set (match_operand:DI 0 "nonimmediate_operand" "=r,r,m,r,r,r,r,??f,f,m,r,*h,*h")
(match_operand:DI 1 "input_operand" "r,m,r,I,L,nF,R,f,m,f,*h,r,0"))]
"TARGET_POWERPC64
&& (gpc_reg_operand (operands[0], DImode)
--- 8567,8573 ----
}")
(define_insn "*movdi_internal64"
! [(set (match_operand:DI 0 "nonimmediate_operand" "=r,r,m,r,r,r,r,!*f,!*f,m,r,*h,*h")
(match_operand:DI 1 "input_operand" "r,m,r,I,L,nF,R,f,m,f,*h,r,0"))]
"TARGET_POWERPC64
&& (gpc_reg_operand (operands[0], DImode)
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18641
next prev parent reply other threads:[~2004-12-06 17:16 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-24 1:16 [Bug target/18641] New: " fjahanian at apple dot com
2004-11-24 1:28 ` [Bug middle-end/18641] " pinskia at gcc dot gnu dot org
2004-11-24 1:53 ` pinskia at gcc dot gnu dot org
2004-11-24 1:55 ` [Bug middle-end/18641] [4.0 Regression] " pinskia at gcc dot gnu dot org
2004-11-24 2:00 ` pinskia at gcc dot gnu dot org
2004-11-24 2:04 ` pinskia at gcc dot gnu dot org
2004-11-24 5:07 ` pinskia at gcc dot gnu dot org
2004-11-24 5:56 ` pinskia at gcc dot gnu dot org
2004-11-24 6:01 ` pinskia at gcc dot gnu dot org
2004-11-24 6:05 ` pinskia at gcc dot gnu dot org
2004-11-24 6:08 ` pinskia at gcc dot gnu dot org
2004-11-24 14:50 ` uweigand at gcc dot gnu dot org
2004-11-24 18:19 ` dje at gcc dot gnu dot org
2004-11-25 20:32 ` rth at gcc dot gnu dot org
2004-11-25 21:53 ` uweigand at gcc dot gnu dot org
2004-11-25 21:57 ` uweigand at gcc dot gnu dot org
2004-11-25 22:44 ` rth at gcc dot gnu dot org
2004-11-28 18:12 ` laurent at guerby dot net
2004-12-01 22:08 ` fjahanian at apple dot com
2004-12-02 16:15 ` uweigand at gcc dot gnu dot org
2004-12-05 6:09 ` dje at gcc dot gnu dot org
2004-12-05 15:45 ` uweigand at gcc dot gnu dot org
2004-12-06 17:16 ` dje at watson dot ibm dot com [this message]
2004-12-06 17:29 ` pinskia at gcc dot gnu dot org
2004-12-06 17:56 ` fjahanian at apple dot com
2004-12-06 23:32 ` fjahanian at apple dot com
2004-12-07 3:10 ` dje at watson dot ibm dot com
2004-12-07 15:11 ` pinskia at gcc dot gnu dot org
2004-12-07 23:26 ` amodra at bigpond dot net dot au
2004-12-11 17:37 ` cvs-commit at gcc dot gnu dot org
2004-12-11 17:55 ` dje at gcc dot gnu dot org
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